Iiro's DeepSky Sketches

Name: NGC 4147Other name: NGC 4153
RA: 12h 10.1m DEC: +18° 33'
Constellation: COM
Type: Globular cluster
Magnitude: 10.3
Size: 4.0'
Classification: VI
Description: vB,pL,R,gbM,rrr
Notes: H I 19,Stars F
Observer: Iiro Sairanen
Location: Ania, Pirkkala, Finland
Date: 20/21.4.2009 0:00
Instrument: Newton 300/1500 mm
Magnification: 429xFilter: -
Field: 11'Seeing: 1
Background sky: 3NE lim mag: 6.6
Visuality: IHeight: 47°
Weather: -6°C
Description: A small globular cluster in spring?s galaxy fields. The cluster is strongly granular but only few individual stars are visible with averted vision. The brighter core-area is little bit ?irregular?.
Updated: 12.8.2009 20:29