Roger Ivester: Amateur Astronomer

Posted December 15, 2015 by rogerivester
Categories: Roger's Articles

     Thank you for visiting my site. I’m hopeful that you’ll find it both interesting and possibly beneficial in your future observations.  

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      I became interested in astronomy in the mid-60’s at the age of twelve. One of my older brothers had purchased a 60mm EQ refractor.      

     I grew up in the foothills of North Carolina, in a very rural area.  It was a fabulous place for a budding new amateur astronomer, completely devoid of light pollution. The sky was velvety black with the Milky Way extending almost to the southern horizon.     

     It wasn’t until the mid-70’s that I acquired my very own telescope, a 4 1/4-inch Edmund Newtonian EQ reflector.  This was not my first choice, as I really wanted the 6-inch Super Space Conquerer, but it was the best my budget would allow.   

     By this time the fabulous skies of my early years were gone. I’d moved to an area packed with houses and street lights, but I made the best of the situation and continued to observe.     

     In 1985 a local astronomy club was formed and I became a member with my youngest son, Brad.  This got me back into astronomy after a five year hiatus.  It was Brad that wanted to join the astronomy club.  I’m glad he did.      

      In 1992 I became a much more serious observer, with a new 10-inch EQ Meade reflector.  And fortunately by this time, I was also living in a much darker area.  I began making pencil sketches, which really helped me to become a far better visual observer.  

     I am the co-founder of the Observer’s Challenge report, along with Fred Rayworth of Las Vegas.  The Observer’s Challenge is an international deep-sky observing report, which allows any serious amateur the opportunity to share notes, sketches and images for a preselected deep-sky object on a monthly basis.  The challenge report will celebrate its 13th year in 2021.   All of the reports to-date are included in the following link. 

https://rogerivester.com/category/observers-challenge-reports-complete/

      In October 2018, Sue French, “Contributing Editor” for “Sky & Telescope Magazine” became the Observer’s Challenge special advisor, after many years as a participant.  Sue wrote the very popular monthly “Deep-Sky Wonders” column for twenty years.  As of November 2019, Sue has agreed to help compile and edit the challenge report.  

     I was fortunate to be able to play a role in the Mount Potosi Observing Complex in Southern Nevada, facilitating a $50,000 telescope donation by Dr. James Hermann, M.D. from North Carolina. The facility has been featured in Astronomy Magazine, the Las Vegas Review Journal and other publications.

https://rogerivester.com/category/mount-potosi-observing-complex-in-southern-nevada/  

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NGC 6857: Emission Nebula – Cygnus: October Observer’s Challenge Report #153

Posted October 13, 2021 by rogerivester
Categories: Work File Only - Observer's Challenge Reports

MONTHLY OBSERVER’S CHALLENGE

Compiled by:

Roger Ivester, North Carolina

&

Sue French, New York

October 2021

Report #153

This is our “work-file report” for the Observer’s Challenge, used for organization, review and edits only. When all report submissions are received, personal photos are added and a final .pdf report will be issued by the 10th of the following month. (The cutoff date to receive submissions for the October report is November 8th).

Introduction

The purpose of the Observer’s Challenge is to encourage the pursuit of visual observing. It’s open to everyone who’s interested, and if you’re able to contribute notes and/or drawings, we’ll be happy to include them in our monthly summary. Visual astronomy depends on what’s seen through the eyepiece. Not only does it satisfy an innate curiosity, but it allows the visual observer to discover the beauty and the wonderment of the night sky. Before photography, all observations depended on what astronomers saw in the eyepiece, and how they recorded their observations. This was done through notes and drawings, and that’s the tradition we’re stressing in the Observer’s Challenge. And for folks with an interest in astrophotography, your digital images and notes are just as welcome. The hope is that you’ll read through these reports and become inspired to take more time at the eyepiece, study each object, and look for those subtle details that you might never have noticed before.

This month’s target:

William Herschel discovered NGC 6857 on 6 September 1784. His handwritten journal for that date reads: A patch containing some nebulosity…irregularly long.

Heinrich d’Arrest writes of this object and his observation of it in his 1867 Siderum Nebulosorum Observationes Havnienses. My very loosely paraphrased English for the Latin text: Minute, faint; it is most probably a cluster. A 12th-magnitude star precedes it. – Rechecked shortly after: it was not so small; not all of the nebula is resolved, there is at least some cloudiness. I’m not surprised that this was missed by Rosse.

NGC 6857 is the brightest part of the larger, star-forming emission region Sharpless 2-100, which is a much more difficult visual target than NGC 6857. 

A 2010 paper by Manash Samal and colleagues in the Astrophysical Journal indicates that the main ionizing source at the center of NGC 6857 is the bright, massive star at its heart. This compact nebula is estimated to be approximately 28 thousand light-years away from us, and the star is thought to have a spectral type of about O4III. The most likely age of the nebula is in the vicinity of 1 to 2 million years. (Intro and object information by Sue French)

Mario Motta: Observer from Massachusetts

An Interesting object, initially thought to be a planetary nebula, but upon careful inspection, clearly is not. NGC 6857 is the bright “knot” to the left (East) in the following image. The nebula is 40 arc sec in size, but is embedded in Sh 2-100, a faint H-Alpha emitting region. It’s really just a bright, but very small section of that nebula. The image was taken with my 32-inch telescope, 3 hours, 1 hour each Ha, S2, O3 filters, processed pixinsight, touched up in photoshop.

Venu Venugopal: Observer from Massachusetts

The image was taken using a 8-inch Newtonian, H-alpha, H-Beta, OII filter with a Zwo533MC 20 minutes exposure, 30 second sub frames at the ATMOB clubhouse in Westford, MA on 10/7/21.

NGC 6857 is an H III Ionized region in the Cygnus constellation.  It is a small (~1’) compact nebula. 3 stars in a row NE-SW, SW one brighter, the other two equal. The middle star is surrounded by nebulosity. The “hidden treasure” in the centre of Cygnus was found in 1784 when William Herschel discovers a “faint glow, among Milky Way stars”. It shows a triangle shape with darker center and hard defined V shaped straight edges.

Glenn Chaple: Observer from Massachusetts

NGC 6857 – Emission Nebula in Cygnus (Magnitude 11.4, Size 40”)

Astronomical literature notes that this month’s Observer’s Challenge, NGC 6857, is a planetary nebula that wasn’t. It was correctly identified as a faint nebula by William Herschel, who discovered it on September 5, 1784. Because of its small size and the presence of a false central star, it was later misclassified as a planetary nebula. Only in recent decades has NGC 6857 returned to its rightful status as a nebula – an emission nebula, to be exact.

NGC 6857 is located in the heart of Cygnus at 20h 01m 48s right ascension and +33° 31’ 38’ declination. It’s just 2 degrees SSE of the 4th magnitude star eta (η) Cygni, which was my starting point for a star-hop (see accompanying finder charts).

I observed NGC 6857 with a 10-inch f/5 reflector on an evening when the magnitude limit was around 5.0. I was unable to see it without the aid of OIII and narrowband filters. Even at 139x, it was small – appearing as a pale ghostly ‘flame’ emanating eastward from the vicinity of a 13th magnitude star.

NGC 6857 is part of a much larger but fainter emission nebula Sharpless 2-100. Approximately 30,000 light years away, its 40 arc-second apparent size translates to a true diameter of 9 light years.

Roger Ivester: Observer from North Carolina

NGC 6857 – Emission Nebula – Cygnus 

Date:  September 27th 2021 

Telescope:  10-inch f/4.5 Newtonian Reflector 

Sketch Magnification:  291x

Eyepiece Combination:  11mm + 2.8x Barlow 

NELM:  ~ 4.9 

After two nights of failure to see the emission nebula, NGC 6857 I gave up, but thought I’d give it one more try on the following night.  So, on the third night after two hours of careful observing using mostly averted vision and a high magnification of 291x, the nebula made its intermittent appearance.  

The nebula could best be described as very small and having an arc shape on the NE side of a faint star. 

Pencil sketch as following:  

Mark Helton: Observer from Massachusetts

Had a short stretch of clear skies last evening, so I thought that I would go for this months observers challenge.  This is NGC 6857. A small planetary nebula in the middle of a much larger region of hydrogen red nebula in the constellation of Cygnus.  It is very bright and also very small for my 535mm Stellarvue 102T-R scope.  It becomes that MM with my .08 Reducer/Flattener.  I shot this with my ZWO533MC Pro camera which has a one inch by one inch sensor.  Using a OPT Tirade Filter.  I only had about an hour and a half before the clouds rolled in, so this is 40, 180 sec images at medium gain.  Stacked in Nebulosity, and processed by Dave Rust, a new member of our club and friend of mine out in Bloomington, Indiana.  He has been introducing me to some new processing techniques so, I wanted him to give this target a try.  We are both using Photoshop, and Topaz Labs DeNoise for final processing.  Thinking of trying out Pixinsight, even though it is a bit of a learning curve.  I think to go to the next level of astrophotography, we have to make the jump!  Cygnus is just chock full of wonderful nebulae, it was fun to find this one.

NGC 6823/Sh 2-86: Open Cluster/Emission Nebula in Vulpecula: September Observer’s Challenge Report #152

Posted September 13, 2021 by rogerivester
Categories: Work File Only - Observer's Challenge Reports

MONTHLY OBSERVER’S CHALLENGE

Compiled by:

Roger Ivester, North Carolina

&

Sue French, New York

September 2021

Report #152

NGC 6823 & Sh 2-86, Open Cluster & Emission Nebula in Vulpecula

Sharing Observations and Bringing Amateur Astronomers Together

Observer’s Challenge Report: Final

September 2021 OBSERVERS CHALLENGE _NGC 6823 & Sh 2-86

This month’s target:

The nebula surrounding the open cluster NGC 6823 suffers an identity crisis. It’s not NGC 6820, as many sources claim, but rather a small knot of nebulosity 16 arcminutes in position angle 218 degrees (southwest by south) from the bright quadruple star at the cluster’s heart. 

Here is NGC/IC maven Harold Corwin’s explanation:

NGC 6820 is a small knot of nebulosity, roughly 1′ × 1′, perhaps a reflection nebula around a few young stars or pre-stellar objects. It is specifically NOT the much larger HII region Sharpless 2-86 as has been many times been claimed, nor is it the cluster Collinder 404 = OCl 122, though that may 

represent the stars involved with the nebula. Marth’s original observation with Lassell’s 48-inch reflector mentions only the nebulosity: “F, S, R, bM”. [Faint, small, round, brighter in the middle]

http://haroldcorwin.net/ngcic/ngcnotes.all 

The position of NGC 6820 is 19h 42m 27.9s  +23° 05′ 15″. Consider this a bonus object if you’d like.

Information above compiled by Sue French

Sparse cluster with ~ 20 stars counted @ 160x, with a central concentration of several brighter members.  With careful and patient observing, despite the less than optimum transparency, and moving the cluster in-and-out of the view, from east to west, I could see some faint, but very large nebulosity ENE of the cluster.  No filter was used.  

To be able see the faint nebula after more than an hour was well worth the time, but once seen, it was surprisingly easy. RI

Pencil sketch as following, using a 10-inch reflector: Roger Ivester

Jaakko Saloranta: Observer from Finland (Pencil Sketch)

Sue French: Observer from New York (Pencil Sketch) 10-inch Reflector

Stargazing Simplified: An Original Article From Sky & Telescope Magazine: Submitted by Guest Host and Author: James Mullaney

Posted September 6, 2021 by rogerivester
Categories: Uncategorized

M57, Planetary Nebula in Lyra: August 2021 Observer’s Challenge Report #151

Posted August 17, 2021 by rogerivester
Categories: Work File Only - Observer's Challenge Reports

august-2021-observers-challenge-_m57Download


Roger Ivester: Observer from North Carolina

10-inch reflector, fairly bright with well defined edges, gray in color, oval shape with a center void.  Both the NW and SW sides are brighter with greater concentration.  The ring is much lighter, or thiner on the NW, and also on the SE, but more subtle.  A 12th magnitude star lies, so very close to the east of the ring.

3.5-inch Maksutov-Cassegrain telescope at a magnification of 146x, the ring nebula is presented as very dim, round but mostly featureless. The central void can be seen, but fairly difficult.  

102mm refractor at 175x, shows the ring as surprisingly bright on this night of exceptional viewing with sharp and well defined edges.  The center void can be seen, but only as a lighter round gray spot, within the ring. Bright star just to the east.

Pencil sketch below:  

NGC 6572, Planetary Nebula in Ophiuchus: July 2021 Observer’s Challenge Report #150

Posted July 19, 2021 by rogerivester
Categories: Uncategorized

Roger Ivester, North Carolina

&

Sue French, New York

July 2021

Report #150

NGC 6572, Planetary Nebula in Ophiuchus

Sharing Observations and Bringing Amateur Astronomers Together

This month’s target

Our object for the 150th monthly edition of the Observer’s Challenge is the tiny, but bright, planetary nebula NGC 6572, variously nicknamed the Emerald Nebula, the Blue Racquetball, and the Turquoise Orb. These names highlight the range of hues perceived by different observers. The nebula is young, perhaps only a few thousand years old. Its diminutive size led to its inclusion in some early star catalogs. NGC 6572 has a visual magnitude of 7.3, as determined by Stephen O’Meara, while its central star dimly shines at 13th magnitude. As with many planetary nebulae, published distances vary wildly. Values in the vicinity of 5000 light-years seem most likely. This pretty little gem was discovered in1825 by Wilhelm Struve.

NGC 6572 displays bipolar outflows in deep images. There’s evidence of interaction between the collimated outflows and the nebula’s elliptical shell. The interaction has broken up the elliptical shell such that parts of the shell have been accelerated, while the outflow has been slowed down and/or deflected. This supports the idea that such outflows are common in planetary nebulae and may play an important role in shaping nebular shells. https://ui.adsabs.harvard.edu/abs/1999ApJ…520..714M/abstract 

Mario Motta: Observer from Massachusetts

NGC6572 is a very tiny object (16×12 arc seconds). Got this last week, poor night with some turbulence, with an H alpha, O3 , and S2 filters. Very short exposures as it is very bright. Visually a small “blue spot”.

Image attached, about 20 minutes each filter, O3 dominated…thus very blue. No detail that I can see. Only good image on line I found is by the Hubble, but can’t match that one! However, a nice object.

Complete Observer’s Challenge Report: Click on the following link…

july-2021-observers-challenge-_ngc-6572-1

Roger Ivester: Observer from North Carolina

NGC 6572 – Planetary Nebula in Ophiuchus 

Date:  May 2021 

Telescope:  6-inch f/6 Newtonian Reflector 

Eyepiece:  20mm + 2.8x BarlowSketch Magnification:  128x

NELM:  ~4.9 Magnitude

I knew that fine detail of this planetary would not be possible from my back yard, using a 10-inch reflector.  So, I chose to use a 6-inch f/6 reflector, mostly for convenience, but not really expecting much difference from the 10-inch.

With the 6-inch, this planetary is very small, mostly round and featureless, but with a pale bluish color.  

This is definitely a large telescope object for the visual observer.  

Peter Vercauteren: Observer from Italy

Telescope: 18-inch f/5 Otte BinoDobsonian

Magnification: 4.5mm @ 507x

NGC 5746, Galaxy in Virgo: June 2021 Observer’s Galaxy Report #149

Posted June 14, 2021 by rogerivester
Categories: Work File Only - Observer's Challenge Reports

Monthly Observer’s Challenge

Compiled by:

Roger Ivester, North Carolina

&

Sue French, New York

June 2021

NGC 5746, Galaxy in Virgo

Sharing Observations and Bringing Amateur Astronomer’s Together

MONTHLY OBSERVER’S CHALLENGE

june-2021-observers-challenge-_ngc-5746Download

This month’s target

William Herschel discovered NGC 5746 on 24 February 1786 with his 18.7-inch reflector. His handwritten journal reads:” Extremely bright, much extended in the parallel, 8 or 9 arcminutes long, bright nucleus.”

A recent study by John Kormendy and Ralf Bender in the Astrophysical Journal presents NGC 5746 as a structural analog of our own galaxy. Both are “are giant, SBb–SBbc galaxies with two pseudobulges, i.e., a compact, disky, star-forming pseudobulge embedded in a vertically thick, ‘red and dead,’ boxy pseudobulge that really is a bar seen almost end-on.” According to the authors, the lives of these galaxies have been dominated by minor mergers and bar-driven evolution for most of the history of the universe. They place NGC 5746 at a distance of 26.7 Mpc (87 million light-years). https://ui.adsabs.harvard.edu/#abs/2019ApJ…872..106K/abstract

NGC 5746’s V(V_T) visual magnitude is 10.32 ± 0.13, and its surface brightness is 12.6. The galaxy’s visible extent through medium-size amateur telescopes under dark skies is in the vicinity of 7.4′ × 1.3′.

Roger Ivester: Observer from North Carolina

NGC 5746 – Galaxy in Virgo 

Date:  May 30, 2021

Telescope:  6-inch f/6 Newtonian 

Sketch Eyepieces:  16mm + 1.9x Barlow 

Magnification:  109x

Field of View:  0.60º

Very easy to locate and see using 46x, mostly in-part being only 20 arc minutes West of bright star,  3.7 magnitude 109 Virginis.  

My best view came at 109x, and presenting the galaxy as highly elongated, oriented almost perfectly N-S.  The core is fairly bright and elongated with faint extensions, coming to a point at both the N and S tips.  

For my sketch, I moved 109 Virginis out of the field of view, to reduce the extreme glare.  

Globular Cluster, M3, NGC 5272 in Canes Venatici: May 2021 Observer’s Challenge Report #148

Posted May 19, 2021 by rogerivester
Categories: Work File Only - Observer's Challenge Reports

MONTHLY OBSERVER’S CHALLENGE

Compiled by:

Roger Ivester, North Carolina

&

Sue French, New York

May 2021

Report #148

Messier 3 (NGC 5272), Globular Cluster in Canes Venatici

Sharing Observations and Bringing Amateur Astronomers Together

Introductio

This month’s target

Charles Messier discovered M3 on 3 May 1764 with a 3.5-inch refractor. The French text of Messier’s catalog in the Connaissance des Temps translates into English as: “Nebula discovered between the Herdsman and one of the Hunting Dogs of Hevelius; it does not contain a star, the center is brilliant & its light imperceptibly fades, it is round; when the sky is good, one can see it with a refractor of one foot [at the time, telescopes were generally described by their length]; it is reported on the Chart of the Comet observed in 1779. Mémoires de l’Académie of the same year. Reexamined 29 March 1781, still very beautiful.”

According to William H. Harris’ Catalog Of Parameters For Milky Way Globular Clusters,

http://physwww.mcmaster.ca/~harris/mwgc.dat , M3 resides 10.2 kiloparsecs (~33,000 light-years) away from us and 12.0 kiloparsecs (~39,000 light-years) from the galactic center. It shines with an integrated V-magnitude of 6.19, and the spectral type of the integrated cluster light is F6. Does its color look slightly yellow to you?

May 2021 Observer’s Challenge Complete Report: may-2021-observers-challenge-_m3-2

Roger Ivester: Observer from North Carolina

M3 (NGC 5272) globular cluster in Canes Venatici 

Date: March 2021 

Telescope:  10-inch f/4.5 reflector

Eyepiece:  20mm + 2.8x Barlow 

Sketch magnification 160x

Field of View:  0.38º 

80mm refractor:  Little or no resolution, appearing mostly round with an intense core, and a fainter enveloping halo.  

10-inch reflector at 160x:  Excellent resolve of stars, mostly round, and with a large number of outlier stars beyond the halo.  A very interesting dark lane was noted in the SE-NE of the cluster.  

NGC 3226 and NGC 3227, Galaxies in Leo: April 2021 Observer’s Challenge Report #147

Posted April 16, 2021 by rogerivester
Categories: Work File Only - Observer's Challenge Reports

MONTHLY OBSERVER’S CHALLENGE

Compiled by:

Roger Ivester, North Carolina

&

Sue French, New York

April 2021

Report #147

NGC 3226 & NGC 3227, Galaxies in Leo

Sharing Observations and Bringing Amateur Astronomers Together

This month’s target

William Herschel discovered this interacting galaxy pair on 15 February 1784 with his 18.7-inch speculum-metal reflector. His hand-written journal of the discovery reads: “Two nebulae almost close together. Perhaps 1½ or 2′ asunder, they are pretty considerable in size, and of a roundish form; but not cometic; they are very faint.” He also notes that on this night he first used: “A new, large object Speculum. It is very bright but not quite as distinct as my first, I shall however use it all the night.”

Together known as Arp 94, NGC 3226 and NGC 3227 are wedded in a gravitational dance 47.2 ± 0.2 million light-years away from us. Their complex dance has spawned a remarkable array of tidal tails as well as one tidal dwarf galaxy — a gravitationally bound condensation of gas and stars formed during the repeated encounters of the two parent galaxies.

The most recent journal paper on this captivating system can be perused here: https://www.aanda.org/articles/aa/full_html/2021/01/aa38955-20/aa38955-20.html

Observer’s Challenge Complete Report:

April 2021 OBSERVERS CHALLENGE _NGC 3226_NGC 3227

NGC 3226-3227: Interacting galaxy pair in Leo 

Date: March 2021

Telescope: 10-inch f/4.5 reflector 

Sketch Magnification: 114x

Field of View: 0.52º 

NGC 3227: Fairly bright, and easy to locate and see even at low magnification.  At 114x, elongated, oriented NW-SE, brighter central region, but subtle.  I first observed this galaxy pair and made my first sketch on April 14th 1993.   

NGC 3226: Much smaller and a fainter than NGC 3227, mostly round, but with a very slight elongation, NNE-WSW.  At 190x, and with averted vision, a stellar nucleus is visible.  Roger Ivester

Sue French: Observer from New York

Through my 130-mm refractor at 23×, I see a moderately faint glow at the position of the interacting pair NGC 3226 and NGC 3227. At 63× it becomes evident that two galaxies dwell here. Although their halos blend together, each harbors a small, distinct, brighter center. NGC 3227 is the brighter and larger galaxy of the pair, its oval façade leans east-southeast. Precariously perched on NGC 3227’s north-northeastern tip, NGC 3226 is wrapped in a halo that tips northeast.

NGC 3222 makes an appearance in the field of view 117×, 13′ west of the interacting duo. This little galaxy appears very dim and holds a weakly glowing, starlike nucleus. A 14th-magnitude star winks in and out of view near the galaxy’s SW×W edge. At this magnification, NGC 3226 grows brighter toward the center, while NGC 3227 displays an oval core with a prominent stellar nucleus. I estimate combined length of the pair to be about 41⁄2′.S

The Southern Cross by Commercial Airlines Pilot: James Yeager

Posted March 29, 2021 by rogerivester
Categories: Uncategorized

Jim Yeager has always allowed me to use any of his aerial photos, which over the years have included, a beautiful photo of the Barringer Crater in New Mexico, covered with snow, and the Mount Potosi Observing Complex in SW Nevada. Both of which I’ve used in previous blog articles and other.

I really like the following image, as I’ve never seen the Southern Cross.

Jim’s notes and photo:

Here is somewhat of clear picture taken with an iPhone using a 3 second exposure on a descent out of 41,000 feet about 100 miles north of Lima, Peru.

You can see Alpha and Beta Centauri pointing to the Southern Cross.

The residual cockpit lights, moonlight behind us, and the haze of high altitude cirrus kept us from seeing the Magellanic Clouds.

Other aerial photos by Jim Yeager:

https://rogerivester.com/category/mount-potosi-observing-complex-in-southern-nevada/

https://rogerivester.com/2016/12/06/aerial-view-of-meteor-crater-compliments-of-james-yeager-pilot-american-airlines/

Incredible and Remote Private Observatory in Landrum, South Carolina

Posted March 23, 2021 by rogerivester
Categories: Roger's Articles

I have seen many private observatories over the past 40 years (plus) as an amateur astronomer, but nothing to the level of this one. It has bedrooms, a darkroom (for the days of film) kitchen, living room, bathrooms, without stairs, but with a “handicap” ramp to the observing room on the second floor. Even some stained glass windows.

It is so hidden on top of a mountain that “seemingly” few living near the facility were aware of its existence. Debbie and I found this amazing.

It’s only about an hours drive from our house.

Deb and I were invited to come for this visit by the owner. When leaving, we were told to come back at any time, but for some reason, we’ve not been able to find our way back. Maybe this year?

When we drove around the last curve going up the mountain and saw the observatory, we both thought it looked like a small castle which might be found in Scotland or England. You decide…

The following photos were made on April 25, 1993. Roger Ivester

In the following picture:

Note the photo propped against the wall behind Debbie, which was a very renowned and famous photo of one section of the Veil Nebula which (at that time, and in the days of film astrophotography) was considered extraordinary. The Veil Nebula is a supernova remnant.

September 2020 OBSERVERS CHALLENGE _Veil Nebula

A highly viewed and studied deep-sky object by both amateur and professional astronomers alike.

The supernova photo was taken using a 6.3-inch Takahashi reflector. The primary telescope in the dome is a 7-inch Astro-Physics refractor, as pictured below.