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(IAAC) Obj: M 4, M 80 - Inst: Astroscan 4,1" f440mm Widefield
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Observer: Martin Baur
Your skills: Intermediate (some years)
Date/time of observation: 30.05.00 00:40 CET
Location of site: clearing near Hofgeismar, Germany (Lat +51°, Elev 820 ft)
Site classification: Exurban
Sky darkness: ~5,0 <Limiting magnitude>
Seeing: <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: Astroscan 4,1" f440mm Widefield
Magnification: 21x 59x
Filter(s): None
Object(s): M 4, M 80
Category: Globular cluster.
Class:
Constellation: Sco
Data: mag size
Position: RA : DEC :
Description:
Both globular clusters just above the treetops at this latitude. Especially
M 4 is one of the southest objects I'm able to observe at this location. The
sky was fairly light-polluted so close to the horizon (~3.0 mag).
M 4: Relative easy to find near Antares. Faint and diffuse patch of roundish
shape. Quite large.
M 80: Much smaller than M 4. With 21x like a fuzzy star. With 59x as a small,
roundish spot between two stars.
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