(IAAC) Obj: M 54 - Inst: 120 mm KONUS refractor,f/8.33, eq. mount

Natko Bajic natkobajic at yahoo.com
Fri Aug 6 08:03:06 EDT 2004


Observer: Natko Bajic
Your skills: Intermediate (some years)
Date/time of observation: 11. July 2001.
Location of site: Vinisce, near Split, Croatia (Lat
44.5, Elev 10 m)
Site classification: Rural
Sky darkness: 5.5 <Limiting magnitude>
Seeing: <I-V Seeing Scale (I best)>
Moon presence: None - moon not in sky
Instrument: 120 mm KONUS refractor, f/8.33, equatorial
Magnification: 40x, 100x
Filter(s): None
Object(s): M 54
Category: Globular cluster
Class: III
Constellation: Sgr
Data: mag 7.60  size 9.1'
Position: RA 18h 55m  DEC -30° 29'
Description:
Very interested globular cluster in Sagittarius, the
furthest of all Messier globular clusters. It was
bright, but small in angular size, with very bright
central part fading out fastly. Averted vision helped 
me to notice faint outer "halo" of this globular,
extending for about 5' and fading slowly into
darkness. No traces of grainy texture were visible.
This globular cluster resembled to M 62, just fainter
and smaller. Field of view is poor of stars for this
part of the sky. Sketch is available at the URL
mentioned below.
--
Optional related URLs: http://natkobajic.netfirms.com



		
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