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Basic object information
Name: M 28
Type of object: Globular cluster
Magnitude: 6.9
Size: 11.2'
Object classification: 4
Description: vB,L,R,geCM,rrr
Notes: 45' NW from Lambda SGR,* mags 14...
Catalog position for epoch J2000.0
Right ascension: 18h 24m 32.9s
Declination: -24° 52' 12"
Constellation: Sagittarius
Observer: Iiro Sairanen
Obs. place: Base del Teide (2280m above sea level), Tenerife, Spain
Date/Time: 18/19.4.2004 4:20
Telescope: Newton 110/805mm
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Magn: 127x |
Filter: |
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Field: 24' |
NE Lim.mag: 7,0 |
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Background sky: 2 |
Seeing: 3 |
Height: 27°
Visuality: II
Weather: +9˚C, dry and good
Clearly granular globular. Few extremely faint stars were visible near by core with averted vision.