M30 – Globular Cluster in Capricornus

Posted October 28, 2014 by rogerivester
Categories: Observers Challenge

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Pencil sketch using a 10-inch Newtonian reflector @ 195x

 

M30

Image by Dr. James Dire of Hawaii using a 190 mm Maksutov-Newtonian telescope.

Bright and well concentrated globular cluster. Using a 10-inch reflector, at 195x some partial resolution of stars. The cluster is elongated E-W, with two distinct star chains radiating out toward the N and NW. A fainter chain extends NNE. The most northerly chain is comprised of four stars. When using a 102 mm refractor, the star chains could not be seen, but the edges appear very irregular, with a brighter middle, and with an E-W elongation.

M30 has always been one of my favorite globular clusters, due in part to the unique star chains extending out from the very bright central region.

Roger Ivester

NGC 6822, Barnard’s Galaxy – Sagittarius – Difficult and faint with very low surface brightness

Posted September 28, 2014 by rogerivester
Categories: Observers Challenge

The following sketch was made using a No.2 pencil, a 5 x 8 blank note card with the colors inverted using a computer. 

Rogers NGC-6822

The following image, courtesy of Dr. James Dire of Hawaii, using a 190 mm Maksutov-Newtonian telescope. 

NGC6822

Read the complete Las Vegas Astronomical Observers Challenge Report, click on the following link: 

AUGUST 2014 OBSERVERS CHALLENGE – NGC-6822

An evening of observing at Lost Arrow Ranch, located in the foothills of western North Carolina

Posted September 21, 2014 by rogerivester
Categories: Observers Challenge, Uncategorized

On Saturday, September 20th, members of the Cleveland County Astronomical Society met at the Lost Arrow ranch for an evening of observing.  Owners, Mike and Jackie Price have provided this excellent dark sky site for our use for many years.  This is a fabulous and beautiful site…

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M 101 Galaxy in Ursa Major – Face-on spiral with low surface brightness.

Posted September 6, 2014 by rogerivester
Categories: Uncategorized

JULY 2014 OBSERVERS CHALLENGE – M-101 NGC 5457

Pencil sketch with inverted colors

Rogers M-101 3

Original sketch:

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A good quality telescope can provide a lifetime of observing

Posted August 19, 2014 by rogerivester
Categories: Uncategorized

I purchased this 10-inch classic Newtonian reflector almost 25 years ago and it continues to be the telescope I use the most.  It  was the following advertisement that caught my eye in the late 80’s.  I wanted the DS-16A, but I knew it would be too heavy and large, so I would later choose the 10-inch version.

Click on the photo’s to enlarge:

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M53 – Globular Cluster – Coma Berenices

Posted August 10, 2014 by rogerivester
Categories: Observers Challenge

JUNE 2014 OBSERVERS CHALLENGE – M053 NGC – 5053

Rogers M-53a

Double Star M40 and Galaxies NGC 4284, NGC 4290

Posted June 24, 2014 by rogerivester
Categories: Observers Challenge

Due to our recent cloudy skies, I was unable to make a new observation of M40, and galaxies NGC 4284 and NGC 4290.  This forced to use a sketch and notes from an early morning observation on February 25th 2000.  On that night I was using a 10-inch reflector from my moderately light polluted backyard with a 5.8 NELM. It was an especially good night with excellent transparency.

M40, a pair of 10th magnitude stars, also known as Winnecke 4 is very easy with a wide separation of about 50 seconds of arc. The pair is oriented mostly east-west and both appear as whitish-yellow in color.

Two faint galaxies are located very close to M40.  All three objects are located within a 1/2º field-of-view.

Just to the west of M40, lies faint galaxy NGC 4290 at 12.0 magnitude, elongated NNE-WSW. A very subtle brightness could be seen in the central region. Very close and to the west of NGC 4290 is very faint 14th magnitude galaxy NGC 4284, which is extremely difficult, appearing as a faint mostly round blur.  During a previous observation from the same location and in a side-by-side comparison with the 10-inch reflector, NGC 4284 could not be seen with an 8-inch Schmidt-Cassegrain telescope.

The following sketch was made using various graphite pencils and a blank 5 x 8 notecard with the colors inverted using a scanner. 

Double click on the following sketch to enlarge and see very faint galaxy NGC 4284 toward the west.

Spurious M40 and NGC 4290 and 4284 -negative

Observers Challenge report:  MAY 2014 OBSERVERS CHALLENGE – NGC- 4284 – 4290


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