NGC 9638, Irregular Galaxy

Spiral Galaxy UGC 40 - Supernova 2003 it

Galaxy UGC 40 and Supernova 2003 it
Image taken with an ST-9E CCD camera thru Kopernik's 20 inch F/8.1 telescope. An 11 minute exposure taken at 1:12 UT on December 28, 2003. The field of view is 9x9 arc minutes with North at the top.

Supernova 2003 it:

Discovered October 13, 2003, by Tim Puckett and L. Cox.
Magnitude at discovery: 17.2
Type: Ia
The supernova is magnitude 18.0 in the Kopernik image.
Matheson, Challis, and Kirshner, Harvard-Smithsonian Center for Astrophysics, reported that the spectrum of this object revealed that it is of type Ia. The expansion velocity is about 7,530 km/sec.

Follow this Link to a NASA Web site on supernovas. It has a very nice animation and a description of what these objects are.

Spiral Galaxy UGC 40:

This 14.9 magnitude galaxy is in the constellation of Pegasus. It is a Spiral Galaxy that may be barred.

Based on the published red shift, (and a Hubble Constant of 62 Km/sec per Mpc) a rough distance estimate for UGC 40 and SN 2003it is 396 million light years, with a galaxy diameter of about 126,700 light years.

UGC 40
Magnitude: 14.9
Constellation: Pegasus
RA: 00h 05m 46.4s
Dec: +27° 26' 42" Epoch 2000
Size (mins): 1.1' x 0.7'
Classification: SB? Barred(uncertain) Spiral Galaxy

Click below to

George Normandin, KAS

January 1st, 2004