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NGC 2903 in Leo, with a 4 inch refractor.

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#1 rodelaet

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Posted 05 April 2009 - 12:04 PM

NGC 2903 is a fine object for a small telescope. It would have been a worthy member of Messier’s catalogue, compared with the other entries from the constellation of Leo. This spiral galaxy lies 20 million l-y away. Locating NGC 2903 is simple : it can be found at 1.5° south of Lambda Leonis, near the nose of the Lion. From my light polluted backyard, the galaxy’s core and stellar nucleus are the first features that show up. The core appears elongated in pa 15°. The galaxy might disappoint you at first and look rather small. With patience and averted vision, the faint but large halo starts to light up against the background glow. The galaxy seems to grow in the eyepiece, when you take the time to make a sketch.

Site : Bekkevoort, Belgium ( 51° N )
Date : March 21, 2009
Time : around 21.00 UT
Scope : Skywatcher 102/500mm achromatic refractor
Eyepiece : Baader Hyperion Zoom at 8mm
Magnifiction : 63x
FOV: 65’
Filter : none
Seeing : 3/5
Transp. : 2/5
Sky brightness : 19.42 magnitudes per square arc second near zenith (SQM reading).
Nelm: 5.0
Sketch Orientation: N up, W right.
Digital sketch made with Corel Paint Shop Pro X2, based on a raw pencil sketch.

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#2 mathteacher

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Posted 05 April 2009 - 12:55 PM

Wonderful sketch! Thank you. I observe with a 4" refractor :)

#3 frank5817

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Posted 05 April 2009 - 03:16 PM

Rony,

This is a fine sketch of a bright barred spiral galaxy in Leo. This sketch like your others is very impressive, realistic and full of details. :bow: :rainbow: :bow:
I cannot pick this one out with my 4.25 inch reflector but my sky glow is very much a problem on most spring nights.
Excellent post!

Frank :)

#4 CarlosEH

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Posted 05 April 2009 - 07:17 PM

Rony,

An excellent observation of an interesting galaxy in Leo. It is ironic that Charles Messier did not record this galaxy as one of his objects but he came close to doing so. Thank you for sharing it with us all.

Links;
http://www.hawastsoc...ps/leo/leo3.gif
http://www.messier.o.../ngc/n2903.html
http://www.noao.edu/...vers/n2903.html
http://apod.nasa.gov...d/ap070706.html
http://www.astrophoto.net/ngc2903.html

Carlos

#5 vennard

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Posted 06 April 2009 - 08:10 AM

Rony
Your drawing give me hope of actually seeing someting in my 4" when the clouds ever clear, thanks for posting.
MikeV

#6 roccodm

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Posted 06 April 2009 - 09:36 AM

Great sketch rod- cant wait for a clear night to point my ar-5 at the site- thanks for sharing rocco

#7 asteroid7

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Posted 06 April 2009 - 10:02 AM

very fine sketch

#8 rodelaet

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Posted 08 April 2009 - 03:25 PM

Thanks for the replies, guys!! :)

#9 JayinUT

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Posted 08 April 2009 - 11:10 PM

Rony,

Your sketch reminds me of my first observation about a month ago of this galaxy. Your image reminds me of what it looked like in the EP. Nicely done as always!

#10 rodelaet

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Posted 09 April 2009 - 02:42 PM

Thanks, Jay. :)






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