NGC 2403, Cadwell C7, Herschel H44-5


[upwards] [NGC2403] [NGC7008]

WIKI   WIKI SN2004dj   NED   Rob Gendler's image  Tool for converting between B1950 and B2000  NGC2403 high res


NGC2403 © by Bernhard Häusler, Germany

Spiral Galaxy NGC 2403 in constellation Giraffe          full res image                                                field of view: 30 x 20 arcminutes

B/W image with 3.3 hours exposure time, supernove SN2004dj and two fast moving stars


On the image I found both the Supernova SN2004dj and two fast moving stars. Here the detailed analysis:

Supernova SN2004dj, discovered by Koichi Itagaki, Japan and announced by IAUC 8377 with an actual magnitude of  17.3 mag:

high precision MPC measurement with Astrometrica:

COD B82
OBS Bernhard Haeusler
TEL 0.30-m Schmidt-Cassegrain + CCD
NET USNO-B1.0
sn2004dj C2011 03 24.84513 07 37 16.981+65 35 58.50 17.3 R B82

The measured coordinates are a little bit different as the original published coordinates by IAUC 8377. Here an extract of the list of Supernovas:

2004dj  NGC 2403         2004 07 31  07 37.3 +65 36  160E  10N  11.2   IAUC 8377       07 37 17.02 +65 35 57.8   IAUC 8377        II-P  2004dj  Itagaki
Koischi Itagaki discovered also the comet C/2009 E1 (Itagaki)

While blinking my image with an image of POSS I taken in 1955, I detected two moving stars, labeled by the POSS II catalogue:
    
1554-0126373                                              1554-0126290
In around 60 years the two stars moved a few arc seconds away from their position in the fifties. 
Using the USNO Archive Search I found out, that 1554-0126373 is moving in RA with 52 mas/yr and in Dec. with 16 mas/yr.
1554-0126290 is moving in RA with 20 mas/yr and in Dec. with -86 mas/yr. This star moved south south east around 4 arcseconds in 55 years.
1000 milliseconds per arc (mas) = 1 second per arc.

  charts of 1554-0126373
Measurement with Astrometrica in March 2011
Left: POSS II in 1997, right: POSS I in 1955  

  charts of 1554-0126290
Measurement with Astrometrica in March 2011
Left: POSS II in 1997, right: POSS I in 1955

top of this page

[upwards] [NGC2403] [NGC7008]

[NGC2403 high res]

 

© Copyright of all sites and images of this web: Bernhard Haeusler, Rimpar, Germany   MPC code: B82 Maidbronn