Have your best photos printed at Deep Sky Printing .

We use Kodak Color Metallic paper for an exquisite finish.
Online ordering. Rapid turnaround.

Custom Search

 

2012cg
 

Supernova in the NGC4424 Galaxy 

 

Home
Up
Scientific Data


AstronomerTelegram:
4119 Near-infrared spectroscopy of the young SN Ia in NGC4424 E. Y. Hsiao, M. M Phillips, N. Morrell, C. Contreras (Las Campanas Observatory), G. H. Marion (Harvard,.... -- 19 May 2012; 15:05 UT
4118 No detected X-ray counterpart to the young SN Ia in NGC4424 R. Margutti, A. Soderberg (Harvard University) -- 19 May 2012; 13:36 UT

 

 

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.

 

 

00

Help Support this site. Check out the Google ads below!

 

 

eXTReMe Tracker

I use Google to serve ads when you visit my website. Google may use information (not including your name, address, email address, or telephone number) about your visits to this and other websites in order to provide advertisements about goods and services of interest to you. If you would like more information about this practice and to know your choices about not having this information used by Google, click HERE