Basic object information
Object name: M 83
Object type: Galaxy
Magnitude: 7.5
Size: 12.9'x11.5'
Position angle: 44
Object classification: SBc
Description: vB,vL,E55,esBMN,spir
Notes: Fast SupNova producer-4 in 50 yrs

Catalog information
RA (J2000.0): 13h 37m 00.0s
Dec (J2000.0): -29 52' 00"

Constellation: Hydra

Observer: Iiro Sairanen
Obs. place: Wicherina, Greenough, Australia
Date/time: 11/12.1.2010 2:35
Telescope: Newton 254/1200 mm
Magn: 171x Filter: -
Field: 29' NE Lim.mag: 7.5
SQM: 21.7 (1) Seeing: 2
Visuality: I Height: 39
Weather: +10C, windy  
A very bright but still challenging galaxy with a superb spiral structure. It's pretty difficult to see clearly how spiral arms circulate the central bar. There are also several knots and stars among the arms.