Iiro's DeepSky Sketches

Name: NGC 3184Other name: UGC 5557
RA: 10h 18.3m DEC: +41° 25'
Constellation: UMA
Type: Galaxy
Magnitude: 9.8
Size: 7.6' x 7.4'
PA: 135°
Surface brightness: 13.9
Classification: SBc
Description: pB,vL,R,vgbM
Notes: H I 168,svBN,smooth lens w spiral pattern of dark markings
Observer: Iiro Sairanen
Location: Haakanala, Rautjärvi, Finland
Date: 6/7.4.2013 23:15
Instrument: Newton 457/2280 mm
Magnification: 115xFilter: -
Field: 34'Seeing: 2
Background sky: 2NE lim mag: 6.9
Visuality: IIHeight: 68°
Weather: -5°C, no wind
Description: Difficult structure, there are two spiral arms visible. The southern arm is more clear and has a brighter knot.
Updated: 28.9.2012 20:00