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SUPERNOVA sn2007af in NGC 5584

 

This Supernova was discovered pre maximum on 1st March 2007 by Koichi Itagaki

 

00:40 UT 16th March 2007 ATK16-IC camera and VC200L at approx f6.4 22 x 30sec

mag 12.5 CR

 

 

01:30 UT 16th March 2007

Spectrum recorded using 100 l/mm Star Analyser at approx 15A/pixel

ATK16-IC camera and VC200L at approx f6.4 38 x 40sec

 

Spectrum calibrated for wavelength and instrument response using nearby A0v star 109Vir

 

 

 

The spectrum is similar to other type 1a Supernovae measured near maximum with a strong Silicon absorption feature around 6200A

(from the Harvard Centre for Astrophysics Supernova Group archives)

 

 

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