NGC 6207, Spiral Galaxy

Spiral Galaxy NGC 6207- Supernova 2004 A

Galaxy NGC 6207 and Supernova 2004 A
Image taken with an ST-9E CCD camera thru Kopernik's 20 inch F/8.1 telescope. Image taken under poor seeing conditions at 4:40 UT on June 24, 2004. The field of view is 9x9 arc minutes with North at the top.

Supernova 2004 A:

Discovered January 9th, 2004, by Koichi Itagaki, of Teppo-cho, Yamagata, Japan.

Magnitude 15.7 at discovery
Type: II
The supernova is magnitude 17.64 in the Kopernik image, taken on June 24, 2004.
The expansion velocity is about 12,000 km/s.

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 NGC 6207:

Spiral Galaxy NGC 6207 in Hercules is very near globular cluster M-13, and it is a favorite of visual observers using 8 inch or larger scopes. There is a bright Milky Way star superimposed near the center. This galaxy has complex knotty spiral arms, faint outer arms, and a bright central lens without a definite nucleus.

Based on the published red shift, (and a Hubble Constant of 62 Km/sec per Mpc) a rough distance estimate for NGC 6207 is 45 million light years, with a diameter of about 39,100 light years.

NGC 6207
Magnitude: 12.2
Constellation: Hercules
RA: 16h 43m 04.3s
Dec: +36° 49' 59" Epoch 2000
Size (mins): 3.0' x 1.3'
Classification: Spiral Galaxy, S-shaped, Luminosity class III

Click below to

George Normandin, KAS

July 5th, 2004