* Astronomy

Blobrana · L

RE: Supernova 2011by

Blobrana · L

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Date: 22:42 UT, 8th May, 2011.

Blobrana · L

Supernova 2011by is now at magnitude 12.5

Blobrana · L

Supernova 2011by is now at magnitude 13.4, and rising.

Blobrana · L

Supernova 2011by now at magnitude 13.9

Blobrana · L

Zhangwei Jin(Ningbo, Zhejiang, China) and Xing Gao (Urumqi, Xinjiang, China), report the discovery of a possible supernova (mag approximately 14.2) on a 60-s survey image (limiting mag about 19.5)taken by Xing Gao in Xingming ObservationSky Survey(C42) around Apr. 26.82344 UT,2011. using a unfilled CCD ( + Celestron C14 Schmidt-Cassegrain telescope D=350-mm @f/6.9 ).
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Blobrana · L

A magnitude 14.2 type Ia supernova, 2011by, was discovered on the 26th April, 2011, by Z. Jin and X. Gao, in the spiral galaxy NGC 3972 in the constellation Ursa Major.
The supernova is located 5.3" east and 19.1" north from the center of the galaxy.

Position(2000): RA = 11 55 45.56, Dec = +55°19'33".8
z = 0.002843

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Credit J. Brimacombe