Basic object information

Object name: M 51
Popular name: Whirlpool
Galaxy Object type: Galaxy
Magnitude: 8.1
Size: 11.2'x6.9'
Position angle: 7
Object classification: Sbc
Description: !!!,Great spiral nebula
Notes: Whirlpool Gal;interacting pair;classic spiral

Catalog information

RA (J2000.0): 13h 29m 54.0s
Dec (J2000.0): +47 12' 00"

Constellation: Canes Venatici


Observer: Iiro Sairanen
Obs. place: Härskiänsaari, Ruokolahti, Finland
Date/Time: 6/7.4.2007 0:50

Telescope: Newton 457/2280 mm

Magn: 326x

Filter:

Field: 15'

NE Lim.mag: 6.6

Background sky: 2

Seeing: 3

Visuality: I

Height: 75


Weather: -5C, windy

I think the sketch tells everything...well-known Whirlpool Galaxy. The spiral arms are very bright and clear, they are visible easily with direct vision. There are also several brighter areas in the arms.