Iiro's DeepSky Sketches

Name: NGC 2244Other name: NGC 2239
RA: 6h 31.9m DEC: +4° 57'
Constellation: MON
Type: Cluster + nebulosity
Magnitude: 4.8
Size: 24.0'
Number of stars: 100
Brightest star: 5.8
Classification: II 3 r n:b
Description: Cl,beautiful,st sc (12 MON)
Notes: H VII 2,In Rosette nebula
Observer: Iiro Sairanen
Location: La Cogolla, Gran Canary, Spain
Date: 31/1.2.2005 23:10
Instrument: Newton 110/805 mm
Magnification: 20xFilter: UHC/O-III
Field: 149'Seeing: 3
Background sky: 2NE lim mag: 6.4
Visuality: IIIHeight: 66°
Weather: +10°C, windy
Description: Rossette Nebula. This is an impressive object! The nebulosity is annular and brightest on the NW edge. A UHC or O-III filter makes the nebula stand out much better and improves the contrast. Bright open cluster NGC 2239 lies in the middle of the ring.
Updated: 6.3.2005 15:46