NGC 7102, Barred Spiral Galaxy

Barred Spiral Galaxy NGC 7102 - Supernova 2003 iw

Barred Spiral Galaxy NGC 7102 and Supernova 2003 iw
A 10 minute CCD exposure taken with an ST-9E camera thru Kopernik's 20 inch F/8.1 telescope. Image taken at 0:00 UT on December 28, 2003. The field of view is 9x9 arc minutes with North at the top.

Supernova 2003 iw:

Discovered October 17th, 2003; Discovered about the same time by the UK amateurs Tom Boles and Mark Armstrong.
Magnitude at discovery: 17.6
Type: II
The supernova is magnitude 17.1 in the Kopernik image, taken on December 28, 2003 at 0:00 UT.

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

Barred Spiral Galaxy NGC 7102:

This 14.0 magnitude galaxy is in the constellation of Pegasus. NGC 7102 has a small, bright nucleus, and a broad bar, plus several knotty arms. It is paired with an edge-on companion galaxy and there are hints of a faint thin bridge connecting the two. There are also a number of faint background galaxies in the area.

Based on the published red shift, (and a Hubble Constant of 62 Km/sec per Mpc) a rough distance estimate for NGC 7102 and SN 2003 iw is 256 million light years, with a galaxy diameter of about 126,550 light years.

NGC 7102
Magnitude: 14.0
Constellation: Pegasus
RA: 21h 39m 44.3s
Dec: +06° 17' 10" Epoch 2000
Size (mins): 1.7' x 1.1'
Classification: SB(rs)b? Barred Spiral Galaxy, Mixed Inner-Ring, S-shaped (uncertain)

Click below to

George Normandin, KAS

December 29th, 2003