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

Magn: 127x


Field: 24'

NE Lim.mag: 7,0

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.