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Basic object information
Name: M 9
Type of object: Globular cluster
Magnitude: 7.9
Size: 9.3'
Object classification: 8
Description: B,L,R,eCM,rrr
Notes: Dark neb B64 prominent to west
Catalog position for epoch J2000.0
Right ascension: 17h 19m 11.8s
Declination: -18° 30' 59"
Constellation: Ophiuchus
Observer: Iiro Sairanen
Obs. place: Boca de Tauce (1980m above sea level), Tenerife, Spain
Date/Time: 17/18.4.2004 1:05
Telescope: Newton 110/805mm
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Magn: 64x |
Filter: |
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Field: 47' |
NE Lim.mag: 6,6 |
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Background sky: 3 |
Seeing: 3 |
Height: 18°
Visuality: II
Weather: +2°C, windy
Granular haze but no stars resolved. Bright core.