Object data

Object type:

M81 + M82 (NGC 3031 + 3034)

Size:

26.9'x 14.1'  -  11.2'x 4.3'

Magnitude:

6.9  - 8.4

Constellation:

Ursa Major

Distance:

14.5 - 17 milj LY

Exposure data

Date, time

2011-02-21  ~23.00 hour

Julian day number

2455 614

Location:

Zuidlaren, Holland

Telescope:

Takahashi FSQ106ED

Camera:

Canon 350D (mod)

Filters:

L: 11x300s

Temperature outside:

-3,5 Celcius

Temperature CCD:

-

Binning:

-

Processing tools:

IP,CS3, GradX

Gerard van den Braak

Notes: