Basic object information
Name: M 22
Type of object: Globular cluster
Magnitude: 5.1
Size: 24.0'
Object classification: 7
Description: vB,vL,R,vRi,vmC
Notes: Stars mags 11...,one of finest globs

Catalog position for epoch J2000.0
Right ascension: 18h 36m 24.2s
Declination: -23 54' 12"

Constellation: Sagittarius

Observer: Iiro Sairanen
Obs. place: Base del Teide (2280m above sea level), Tenerife, Spain
Date/Time: 18/19.4.2004 4:35

Telescope: Newton 110/805mm

Magn: 127x


Field: 24'

NE Lim.mag: 7,0

Background sky: 2

Seeing: 3

Height: 29
Visuality: II

Weather: +9˚C, dry and good

A massive globular cluster. Individual stars down to nucleus were visible. Brightenings on the W and E side of the core which is bright and elliptical in N-W direction.