Barred Spiral Galaxy IC 1158 & Supernova 2000cb

A 10 minute exposure with an ST-6 CCD camera thru Kopernik's 20-inch F/8.1 Ritchey Chretien Cassegrain telescope. The field of view is about 5x7 arc minutes. Image taken under poor conditions including some cloud. Time: 5:18 UT, June 24th, 2000.

Supernova 2000cb:

Discovered: April 27th, 2000, by Lick Observatory Supernova Search Team and independently by the Beijing Astronomical Observatory.

• Magnitude 18.0 at discovery
• Type II, before max brightness
• Magnitude 16.3 at peak

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 IC 1158:

Quote from the Dreyer's Index Catalog to the NGC:

Most extremely faint, pretty large, and irregularly round.

This face-on barred spiral galaxy is in the constellation of Serpens. Its low surface brightness ( 14th magnitude ) makes it difficult to observe except in large telescopes. A rough distance estimate for IC 1158 is 100 million light years, and at that distance, the diameter would be 74,000 light years.

• IC 1158
• Magnitude: 13.4
• Constellation: Serpens
• RA: 16h 01m 33.8s
• Dec: +01° 42' 25" Epoch 2000
• Size (mins): 2.5' x 1.7'
• Classification: SB(r:)c II-III
                          Barred Spiral, Inner Ring (uncertain), Luminosity class II-III
  

Click below to

George Normandin, KAS

June 24th, 2000