(Second sketch)

Basic object information
Name: NGC 2403
Type of object: Galaxy
Magnitude: 8.5
Surface brightness: 12.7 mag/sq arcmin
Size: 17.8'
Position angle: 127
Object classification: Sc
Description: !! cB,eL,vmE,vgmbMN
Notes: PA 127,in M81 group,many well res irreg arms,broad bar

Catalog position for epoch J2000.0
Right ascension: 07h 36m 54.5s
Declination: +65 35' 58"

Constellation: Camelopardalis

Observer: Iiro Sairanen
Obs. place: Lakasenpelto, Imatra, Finland (Ahola, Joutseno, Finland)
Date/Time: 12/13.8.2004 1:40 (21/22.8.2004 2:15)

Telescope: Newton 406/1830mm

Magn: 244x (244x)

Filter: deepsky (-)

Field: 12' (12')

NE Lim.mag: 5.7 (6.4)

Background sky: 4 (2)

Seeing: 2 (3)

Height: 40 (43)
Visuality: III, I, (II)
Weather: +11C, random clouds (+11C, moist)

NGC 2403 was difficult to see because of bright background sky. Only a core and the brightest parts were visible with averted vision. Supernova 2004dj (arrow) was the reason why I observed this galaxy. SN 2004dj was 11th mag and lies 2,5' east from the core. It was easy to identify from a CDD-picture.

(Fine galaxy with a bright supernova! West spiral arm is quite massive and bright. NGC 2404 is a lonely patch near by SN200dj which is about 12 mag.)