NGC 2964/2968/2970 – Galaxies in Leo – April 2019 Observer’s Challenge Objects

Posted March 28, 2019 by rogerivester
Categories: Work File Only - Observer's Challenge Reports

Observer’s Challenge Report:
APRIL 2019 OBSERVERS CHALLENGE – NGC-2964-68
Pencil sketch with colors inverted:
Rogers NGC-2964 Invereted

NGC 2964-68-70

Image by Mario Motta from Massachusetts, 32-inch telescope:

ngc2964-68

 

NGC 2300 and NGC 2276 – Galaxy Pair in Cepheus – March 2019 Observer’s Challenge Objects

Posted March 7, 2019 by rogerivester
Categories: Work File Only - Observer's Challenge Reports

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

MARCH 2019 OBSERVERS CHALLENGE – NGC-2300

 

Pencil sketch 10-inch reflector @ 183x: 

NGC 2300 and 2276

Inverted color pencil sketch:  

Rogers NGC-2300 Inverted

NGC 2300 and NGC 2276 – Galaxies in Cepheus –  Date:  Wednesday, March 6th 2019 Telescope:  10-inch f/4.5 reflector – Sketch magnification:  183x – Eyepiece:  12.5 mm + 2x Barlow – FOV:  0.33º – 20 arc minutes – Conditions:  NELM ~5.0-5.2 

NGC 2300:  Bright, high surface brightness, brighter very concentrated nucleus, mostly round, but with a very subtle E-W elongation.  

NGC 2276:  Extremely difficult, mostly round, very low surface brightness, appearing only as a brightening in the sky.  Very even without concentration.  The glare from a magnitude 8.5 star located two arc minutes WSW of the galaxy, hinders the view.  Averted vision required.  The eyepiece view of this galaxy was far more illusive than my pencil sketch projection.  Roger Ivester 

 

Image and information by Mario Motta – 32-inch f/6 telescope 

NGC2300-2276

I fought some clouds late, and had to drop some subs, but got about 65 minutes total for this image.  

SBIG STL 1001B camera, five minute subs to keep the bright mag. 8.5 star, only a couple arc minutes away from blooming too much, with the 32-inch f/6 telescope, and then processed in PixInsight.  

NGC 2300 is mostly featureless as an elliptical, but I find NGC 2276 very interesting.  It has sharp arms that are chock full of H alpha knots it would appear.  

I wonder if NGC 2276 is a starburst galaxy?  Possibly by a close approach to 2300?  Such an interesting galaxy and image.  

Mario Motta from Massachusetts  

Supplemental Post: 

I  did a search and was right, concerning NGC 2276!  It is a starburst galaxy, see below:  A short abstract from Chandra observations.  Mario  

Abstract: 

The starbusting, nearby (D = 32.9 Mpc) spiral (Sc) galaxy NGC 2276 belongs to the sparse group dominated by the elliptical galaxy NGC 2300. NGC 2276 is a remarkable galaxy, as it displays a disturbed morphology at many wavelengths. This is possibly due to gravitational interaction with the central elliptical galaxy of the group. Previous ROSAT and XMM–Newton observations resulted in the detection of extended hot gas emission and of a single very bright (∼1041 erg s−1) ultraluminous X-ray source (ULX) candidate. Here, we report on a study of the X-ray sources of NGC 2276 based on Chandra data taken in 2004. Chandra was able to resolve 16 sources, 8 of which are ULXs, and to reveal that the previous ULX candidate is actually composed of a few distinct objects. We construct the luminosity function of NGC 2276, which can be interpreted as dominated by high-mass X-ray binaries, and estimate the star formation rate (SFR) to be ∼5–15 M yr−1, consistent with the values derived from optical and infrared observations. By means of numerical simulations, we show that both ram pressure and viscous transfer effects are necessary to produce the distorted morphology and the high SFR observed in NGC 2276, while tidal interaction have a marginal effect.

Fabulous Death Valley Photo Capturing a Dust Devil by Kerri Adams of North Carolina – February 2019

Posted February 25, 2019 by rogerivester
Categories: Uncategorized

My cousin, Kerri Adams visited Death Valley California, and Red Rock Canyon, Nevada just last week, February 2019.  I picked one of her many photos to share.   

The following is my favorite, as it represents a rare moment in time for this camera shot to come together.  
 
Now we all know what a dust devil but….https://en.wikipedia.org/wiki/Dust_devil
 

Roger Ivester    

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Famous Astronomer Quotes: By Guest Host James Mullaney; Astronomy Writer, Author, and Lecturer

Posted February 18, 2019 by rogerivester
Categories: Uncategorized

“The study of the heavens from a purely aesthetic point of view is scorned in this technological age.”- James Muriden

“The serene art of visual observing.” – Lee Cain

“I would rather freeze and fight off mosquitoes than play astronomy on a computer.” – Ben Funk

“The high-tech devices pervading the market are ruining the spirit of the real meaning of recreational astronomy.” – Jorge Cerritos

“Whatever happened to what amateur astronomers really care about – simply enjoying the beauty of the night sky?” – Mark Hladik

“To me, astronomy means learning about the universe by looking at it.” – Daniel Weedman

“Nobody sits out in the cold dome any more – we’re getting further and further away from the sky all the time.  You just sit in the control room and watch monitors.” Charles Kowal (Palomar Obs.)

“All galaxies deserve to be stared at for a full 15 minutes.” – Michael Covington

“Every tint that blooms in the flowers of Summer flames out in the stars at night.” J.D. Steele (ref. especially to double stars)

“But let’s forget the astrophysics and simply enjoy the spectacle. ” Scotty Houston

“I became an astronomer not to access the facts about the sky but to see and feel its majesty.” – David Levy

“The feeling of being alone in the universe on a starlit night, cruising on wings of polished glass, flitting in seconds from a point millions of miles away to one billions of lightyears distant is euphoric.” Tom Lorenzin

“…the fun of sight-seeing, the sheer joy of firsthand acquaintance with incredibly wonderful and beautiful things.” – Robert Burnham

“One gentle dose of starlight to be taken each night just before retiring.” – Leslie Peltier

“To me, telescope viewing is primarily an aesthetic experience.” Terry Dickinson

“Spend your nights getting intoxicated with photons!” – Telescope Advertisement

“Time spent with 2-billion-year-old photons is potent stuff.” – Peter Lord

“I am because I observe. ” Thaddeus Banachiewicz

“The views are so incredibly fantastic!” – Jack Newton

“When you’re in the observer’s cage of the 200-inch…it’s romantic, beautiful, marvelous.” – Jesse Greenstein (Palomar Observatory)

“Observing all seems so natural, so real, so obvious.  How could it possibly be any other way?” Jerry Spevak

“A night under the stars rewards the bug bites, the cloudy skies, the next-day fuzzies, and the thousands of frustrations with priceless moments of sublime beauty.” – Richard Berry

“And there’s always that special pleasure  in knowing that, when you look upon that distant light,
it has traveled all those lightyears – such an incredible journey – just for you.” – Ken Fulton

“Gazing into the beginning of everything, we are young once again. ” Ron Evans

“But it is to be hoped that [someone] will carry out the author’s idea and study the whole visible heavens from what might be termed a picturesque point of view.” – T.W. Webb

“This book is an effort to rescue the ancient love of simple stargazing from the avalanche of mathematics and physics under which modern astronomy threatens to bury it.” – Henry Neely

“But are silent worship and contemplation the very essence of stargazing?” – David Levy

“To gaze into space is to embark upon a spiritual quest, an experience of awe and wonder.” – Roger Ressmeyer

“How can a person ever forget the scene, the glory of a thousand stars in a thousand hues….” – Scotty Houston

“Delightful planetary nebulae – ephemeral spheres that shine in pale hues of blue and green and float amid the golden and pearly star currents of our Galaxy on the foam of the Milky Way like the balloons of our childhood dreams.  If you want to stop the world and get off, the lovely planetaries sail by to welcome you.” – Scotty Houston

“The celestial actors are in place, a serene majesty washes over the stage, and I can almost hear the music of galactic trumpets in their opening bar.” – Scotty Houston (anticipating his death that happened shortly after he wrote this??)

The following is by a contemporary amateur, who has always claimed to be nothing more than a humble backyard observer, and a good friend of mine for many years.  The co-founder of the Observer’s Challenge report, which has gained a following all across the country and beyond.  The Challenge will celebrate its 120th consecutive monthly report, February 2019.  An amazing contribution to amateur astronomy community for sure!  

“Sharing Observations and Bringing Amateur Astronomers Together” – Roger Ivester  (Observer’s Challenge) https://rogerivester.com/category/observers-challenge-reports-complete-all-reports-from-2009/

Memories of “The World’s Greatest Non-Professional Astronomer” By Guest Host, James Mullaney

Posted January 22, 2019 by rogerivester
Categories: Uncategorized

Memories of “The worlds greatest non-professional astronomer”  

That’s how Harvard Observatory director Harlow Shapley in 1934 described the famed variable star observer and comet discoverer Leslie Peltier.  His wonderful and inspiring classic, Starlight Nights, is without a doubt the greatest and most significant (at least to amateur astronomy) book that I’ve ever read.  I reviewed the original hardcover edition for the February, 1966, issue of Sky & Telescope, and shortly afterward had the privilege of visiting him and his two observatories. 

I held his famed “strawberry spyglass” in my hands while we talked in his living room and then adjourned to the dining room where his wife Dottie had prepared a gastronomic Sunday dinner feast.  Afterward we went to his observatories, where he offered to let me sit in the chair of his famed rotating observatory.

His book takes you back to a simpler and saner time in life, now sadly long gone.  I re-read it several times a year to help keep my sanity amid the chaos of this troubled world.  There are many profound quotes throughout the book, but this one seems especially appropriate to what we are doing to our beautiful Mother Earth today:  “So much that man touches he destroys.”

Having personally known him, I’m quite sure that Leslie would so approve of the amazing contribution to the subject and amateur astronomy in general, as the “Observer’s Challenge” series.  Want to know more about the Observer’s Challenge?   Click on the following link….

https://rogerivester.com/category/observers-challenge-reports-complete-all-reports-from-2009/

Jim Mullaney

PS: Leslie was also the inspiration for my own life’s work culminating in my book Celebrating the Universe!   (HayHouse.com)

 

Debbie Ivester: My First Photo of The Moon Using an iPhone. I’m Now Ready To Go To Another Level and Attempt to Use My DSLR Camera With An Orion 80 mm (Model CT80) f/5 Refractor. Lots to Learn. I’ll Post My Results When Available.

Posted January 22, 2019 by rogerivester
Categories: Uncategorized

I was using an iPhone 10 and a 6-inch f/6 imaging Newtonian reflector telescope, with a 24 mm eyepiece for a magnification of 38x.  After focusing the telescope on the moon, I then handheld the phone up to the telescope eyepiece.  This was a bit more difficult than I would have thought.  

The phone had to be perfectly aligned over the telescope eyepiece, while looking at the phone screen, which required some slight moving around until the moon was visible.  Then a light tap on the phone shutter button, and there was an image of the moon.  Pretty incredible!  A bit of practice was required to get this right. 

Unfortunately some high cirrus clouds began covering the moon.  I chose to use the following photo, despite the clouds as this was my best.  I’ll try again on a better night.  It was also really cold!  

It would have been great if I’d tried this during the lunar eclipse.  

Many thanks to Roger for helping me accomplish this goal on a very cold night…I just wish we’d been able to have done this Sunday night.  We just didn’t know!  

Also, thank you to Richard Nugent of Boston for the post of the Lunar Eclipse that spawned my appetite to be interested in making a photo using an iPhone  and a telescope.  

This is not a big deal to serious astrophotographers, but I’d just always wanted to take a photo of the moon.    

Debbie Ivester 

img_6899

Roger helped me set the telescope up and get ready earlier in the evening.  With our Dachshund, Nova Sophia “Sophie” who wants to do everything with us.  Debbie Ivester

img_0541

Just received my T-ring and adapter, and have attached my DSLR to an 80 mm f/5 Orion (Model CT80) refractor.  I’m now ready to go to the next step, and will post my results when available.   Debbie 

img_0559

 

img_0555

img_5338

 

NGC 2175: Reflection Nebula in Orion – February 2019 Observer’s Challenge Object #120

Posted January 7, 2019 by rogerivester
Categories: Work File Only - Observer's Challenge Reports

Observer’s Challenge Report:  FEBRUARY 2019 OBSERVERS CHALLENGE – NGC-2175

If you have identification questions concerning reflection nebula NGC 2175, the following information by Sue French will be of value during your observation.   

NGC 2174 is a brighter knot in the northern part of NGC 2175.  The existence of a true cluster within NGC 2175 is dubious, but the visually involved stars are nonetheless known as Collinder 84.   Sue French

image001

Hi Roger, learning curve to do mosaic well in Pixinsight, but here is my effort.

This is a composite of east and western end of the monkey.
This one only includes Ha and O3 data, S2 could not be incorporated in the composite due to eastern end getting clouds at that time.  So…came out OK, I think.
The following image is about 5 -6 hours total sub time to get. Strl 1001E camera (field of view 17×17 arc minutes per sub) the combo spans about 30 arc minutes. Taken with my 32 inch f/6, 4800mm FL, several nights work
Mario 

ngc2174+2175-monkey

Pencil Sketch by Roger Ivester

ngc 2175

Pencil sketch with colors inverted:

rogers ngc-2175 inverted

Date: January 9, 2019; Conditions: Excellent; NELM 5.2 

Telescope: 10-inch f/4.5 Newtonian reflector; Elapsed time for this object:  Three hours;  Sketch Magnification: 57x; Filter:  O III; Field of View: 1.1º – 66 arcminutes;  Addition magnification, without filter: 95x 

At 57x, using a 20 mm eyepiece, plus O III, the nebula was very easy to locate and see, however, almost invisible without the filter.  The nebula is brightest and more concentrated around the central mag. 7.5 star.  Dark lanes are abundant throughout the nebula, especially looping around the south edge.  With averted vision, NGC 2174, a nebulous patch could be observed on the NW corner, however, not constant.  A small cluster of stars to the ENE of NGC 2175, has the appearance of having nebulosity.  When removing the O III filter, and increasing the magnification to 95x, and with averted vision, many faint stars began to appear within the nebula as shown in my sketch.  Roger Ivester   

 

Image provided by David Blanchette from Las Vegas:  North is up and west to the right.  Telescope and equipment:  8-inch Explore Scientific Newtonian Astrograph, Canon Rebel T7i, 50x60s, ISO 6400, Baader UHC-S filter, Deep-Sky Stacker. 

ngc 2174 north crop

 

Observation notes by Sue French:

I hope to sketch this for the Observer’s Challenge, but in the meantime here are my past logs for NGC 2175:

 

3-1-91, 9:00 PM EST, 10-inch/f6 homemade Newtonian, 32mm Plössl+ O III filter, Seeing: fair, Transparency: good, Aurora

Large, faint, mottled nebula containing a 7.6-magnitude star in a rich field of fainter stars.  About one-half degree in diameter.

 

2-12-96, Winter Star Party, 11:00 PM EST, 105mm AP Traveler prototype, 13mm Nagler, Seeing: fair, Transparency: good

Very nice nebula about 20 arcminutes in diameter. Obvious without filter, but better with the PTR Optics narrowband filter and even better with an O III filter. 7.6-magnitude star near center plus about a dozen faint stars superimposed. Slight mottling to nebula with hints of some dark lanes.

 

3-1-96, 9:35 PM EST, 10-inch/f6 homemade Newtonian, 35mm Panoptic, O III filter, Seeing: fair, Transparency: good

A large, round glow through the O III filter, about 23 arcminutes across.  Despite the outlines in Uranometria, the nebula looks pretty much centered on the 7.6-magnitude star embedded within. The nebula brightens gradually toward the center.  The view is similar with a UHC filter, but not quite as contrasty. Without a filter, the nebula is subtle. It has a dusting of faint stars across it.

 

12-23-16, 12:40 AM EST, My great-nephew’s 8-inch Orion Intelliscope in North Carolina

Visible in 9×50 finder with a 7.6-magnitude star embedded near center.

22mm Nagler: Large, easy to see.  The star near the center is in a star chain that has a prominent hump to the east.  Subtle dark nebulae thread the glow.  Many superimposed stars. The nebula shows nicely when adding a UHC filter.  Somewhat irregular in shape.  The Sh2-252 E nebulous knot doesn’t show particularly well, but it has a superimposed star near its center, too. O III filter makes the nebula seem quite bright to a diameter of 22 arcminutes.

9mm Nagler: The unrelated cluster Pismis 27 (sometimes called NGC 2175.1) shows 6 fairly bright stars in a SSE-NNW bunch, plus a half-dozen faint stars.  Overall the group spans about 4.2 arcminutes.

 

1-30-17, 8:40 PM EST, 10-inch/f5.8 homemade Newtonian, Seeing and Transparency; fair, snowcover, 14°F. breezy

2175 is visible through the 9×50 finder as a distinct sizable glow around a star.

22mm Nagler: The nebula is subtle. Pismis 27 shows 9 stars.  Adding a UHC filter shows a beautiful, large nebula threaded with dark lanes.  The northern border is particularly irregular.  The nebulosity covers about  25 arcminutes.  There’s a very small, brighter patch (Sh2-252 E) 3.2 arcminutes ENE of the star.  The bright patch contains a star and has a pair of matched (m = 10.6, 10.7) stars 2.1 arcminutes north.  There may be a touch of nebulosity in Pismis 27.

22mm Nagler + O III filter: Also makes the nebula stand out well, but I prefer the UHC, which shows off the lines and chains of stars meandering across the nebula.

13mm Nagler: Pismis 27 shows 15 stars in about 4½ × 3 arcminute group running approximately north-south. Includes the close double J1922.

 

My first mention of NGC 2175 in my S&T column, which was then called Small-Scope Sampler, in the February 2004 issue:

Another nice nebula, NGC 2175, sits 1.4º east-northeast of Chi2 (c2) Orionis.  In my little refractor at 47x, I find the nebula obvious without a filter.  However, a narrowband filter betters the view and an OIII filter helps even more.  An 8th-magnitude star is visible near the center, and a dozen faint stars are superimposed.  The nebula is slightly mottled and shows hints of dark lanes.

 

NGC 2175 is sometimes plotted as an open cluster in star atlases while the designation NGC 2174 is given to the nebula.  Neither is correct.  NGC 2175 was discovered sometime in the mid-1800s by the German astronomer Carl Christian Bruhns and first reported by Arthur Auwers who described it as an 8th-magnitude star within a large nebula.

 

NGC 2174 is actually a bright knot of nebulosity in the northern edge of NGC 2175.  It was discovered at Marseille Observatory by Édouard Stephan, widely recognized for the group of galaxies that bears his name – Stephan’s Quintet.  Folks with larger scopes might like to hunt for NGC 2174 and for the even brighter knot Sh 2-252 E, respectively located 11′ north-northwest and 3.3′ east-northeast of the 8th-magnitude star.

 

The existence of an open cluster within the nebula seems debatable.  It was the Swedish astronomer Per Collinder who first noted a cluster here and mistakenly equated it with NGC 2175.  The cluster’s proper designation should then be Collinder 84, but there doesn’t appear to be an obvious concentration of stars within the nebula.  Collinder 84 is supposed to consist of the clumps of stars loosely scattered across most of NGC 2175.  Does it look like a cluster to you?

Sue French