|
|||||||
|
|
|
|||||
|
|
|||||||
Basic object information
Name: M 51
Type of object: Galaxy
Magnitude: 8.4
Surface brightness: 12.5 mag/sq arcmin
Size: 9.0'x7.5'
Position angle: 163°
Object classification: Sc
Description: !!!,Great spiral nebula
Notes: PA 163,Whirlpool Gal,interacting pair P(b) at 4',classic spiral
Catalog position for epoch J2000.0
Right ascension: 13h 29m 53.3s
Declination: +47° 11' 48"
Constellation: Canes Venatici
Observer: Iiro Sairanen
Obs. place: Base del Teide (2280m above sea level), Tenerife, Spain
Date/Time: 19/20.4.2004 23:50
Telescope: Newton 110/805mm
|
Magn: 94x |
Filter: |
|
Field: 28' |
NE Lim.mag: 7,0 |
|
Background sky: 2 |
Seeing: 2 |
Height: 69°
Visuality: II
Weather: +11˚C, thin highclouds
Clear hints of spiral arms were visible with averted vision in M51. NGC 5195 is almost round but slightly irregular.