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PSN J08175346+2328105

Supernova in the NGC2554  Galaxy 

 

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Astronomer Telegram:
 

 

 

image PSN J08175346+2328105, CBAT TOCP discovered 2013/03/25.190 by Lick Observatory Supernova Search
Found in NGC 2554 at R.A. = 08h17m53s.46, Decl. = +2328'10".5 (Photometry reference)
Located 1" west and 10" south of the center of NGC 2554 (L. Elenin and I. Molotov image) (Johan Warell image) (William Wiethoff image) (Bill Williams image) (Joseph Brimacombe image) (Giancarlo Cortini image) (Lynn van Rooijen image)
Mag 14.7:4/1, Type Ia (z=0.014) (References: ATEL 4940)

A listing of Supernovae brighter than 17 Mag. can be found at this site
http://www.rochesterastronomy.org/snimages/

     I will be  monitoring and calculate its magnitude (dimness) over time. As you  can see by the graph below, from the time I started to monitor it on Aug. 30 2011  it had increased in brightness. Please note that  the smaller the magnitude number the brighter the object is.

     I will keep this graph updated by getting at least one image a night (weather permitting) till it is no longer visible.
 

     If you  are interested in how to convert ADU ( Analog Digital Units) values to  a Magnitude value, check out this link http://www.warren-wilson.edu/~physics/Contemp-Astronomy/starmag/starmag.html. You  will need the ADU and Magnitude numbers for a reference star  in the same field as the primary object as well as the ADU value of the object in question.  I use Nebulosity to get the ADU figures.

(This Page was last changed 06/17/2014)

 

 

These measurements were taken in the visible light without any color filters using an Orion SSP V2 on a SN8 at 5 minute exposure dark subtracted and flat applied.

 

These images will be updated as I get more data.

 

 

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