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(IAAC) Obj: M53 (NGC 5024) - Inst: 8" F/6 Dobsonian
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Observer: Michael Geldorp
Your skills: Beginner (< one year)
Date/time of observation: 5/10/1999 22.05 UT
Location of site: Alphen ad Rijn, Netherlands (Lat 52.09N, Elev )
Site classification: Suburban
Sky darkness: 4.0 <Limiting magnitude>
Seeing: III <I-V Seeing Scale (I best)>
Moon presence: None - moon not in sky
Instrument: 8" F/6 Dobsonian
Magnification: 49X, 98X, 203X, 244X
Filter(s): none
Object(s): M53 (NGC 5024)
Category: Globular cluster.
Class:
Constellation: Com
Data: mag 7.7 size 12'.6
Position: RA 13:12 DEC +18:10
Description:
Easily located near alpha Comae. At 49X a round nebulous glow with some mottling
but no stars resolved.
Increasing the magnification shows an unresolved background glow that is
somewhat triangular in shape with a more diffuse halo around it. Moderately
resolved espescially around the edges with more stars appearing on the western
half than on the east. There is a very prominent star on the northeast edge
of the central condensation.
As with my 4".5 last year I was also unable to spot the globular NGC 5053
with my 8" but the sky conditions were far from ideal for this faint cluster.
There is a sketch on this object on my homepage: URL mentioned below.
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Optional related URLs: http://home.wxs.nl/~geldo006/home.html
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