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

June 2014: Celebrating my 34th year of cycling and 120,000 miles.

Posted May 30, 2014 by rogerivester
Categories: Roger's Articles

 

photo

Galaxies NGC 3893 and Faint Companion NGC 3896 In Ursa Major

Posted May 29, 2014 by rogerivester
Categories: Observers Challenge

2014-04-08- 001

 

To read the full report:  Click on the following link.

APRIL 2014 OBSERVERS CHALLENGE – NGC-3893-3896

 

Globular Cluster M13 and The Elusive Propeller – Orion Telescope and Binocular Article

Posted May 7, 2014 by rogerivester
Categories: Uncategorized

If you’ve never seen the three dark lanes in M13, known as “the propeller” let 2014 be your year.   

To read the full article on the Orion Telescope and Binocular site:  Go to the “Community Page” then “Deep-Sky Challenge” or just click on the following Orion link. 

http://www.telescope.com/Articles/Deep-Sky-Cluster/Globular-Cluster-M13-and-the-Elusive-Propeller/pc/-c/c/9/sc/770/p/102978.uts

M13 And The Elusive Propeller

NGC 2672 and NGC 2673 – Double Galaxy In The Constellation Of Cancer – May 11th 2013

Posted April 27, 2014 by rogerivester
Categories: Uncategorized

Originally posted on rogerivester:

NGC 2672 was pretty easy to see with a 10-inch reflector.  However, it took me three observing sessions and at least six hours to hours to see the fainter companion galaxy, NGC 2673.  

Object:  Galaxies NGC 2672 and NGC 2673 in the constellation of Cancer

I spent three nights in my moderately light polluted backyard, attempting to observe galaxies, NGC 2672 and 73.  On the first night, brighter galaxy NGC 2672 was fairly easy, using a 10-inch reflector, at 104x.  However, fainter galaxy NGC 2673, could not be seen.  Both seeing and transparency were only fair, with a NELM of about 4.8, or maybe a little less.  When increasing the magnification to 208x, NGC 2672 was presented as faint with a brighter concentrated core, and a faint elongated halo, oriented EW.  I would spend another night and at least two more hours, and still NGC 2673 could not be…

View original 207 more words

NGC 2359 – “Thor’s Helmet” – Diffuse Nebula – Canis Major

Posted April 19, 2014 by rogerivester
Categories: Observers Challenge

Telescope: 10-inch reflector at 57x, from my moderately light polluted backyard in the foothills of western North Carolina.   The following pencil sketch was made using a No. 2 pencil on a blank 5 x 8 note card, with the colors inverted using a scanner.

2014-04-04-001

To read the Observers Challenge report:  MARCH 2014 OBSERVERS CHALLENGE – NGC-2359

NGC 1664 – “The Kite Cluster” in Auriga

Posted April 4, 2014 by rogerivester
Categories: Observers Challenge

The following pencil sketch was made using a 10-inch reflector @ 95x, from my moderately polluted in the foothills of western North Carolina.   The sketch was made using a No. 2 pencil on a blank 5 x 8 notecard with the colors being inverted using a scanner.  

NGC 1664

 To read the Observers Challenge Report:  FEBRUARY 2014 OBSERVERS CHALLENGE – NGC-1664

Roger

 


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