Supernova 2008ax in NGC 4490

This page is devoted to information on Supernova 2008ax in NGC 4490.   Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main page.  Information on the original web pages for many of these images can be found on the updates and links web pages.

image Discovered independantly by Lick Observatory Supernova Search (USA), Koichi Itagaki (Japan).   The spectrum of this one has an interesting past.   Initially it was suspected to be a blue variable (not an SN), then it went to a young type II, and is now reported as a type Ib.   This one was found very young found in the Cocoon galaxy.   We have a DSS Photometry reference image made by Odd Trondal.  Icon generated from the discovery image.   This supernova is in the Constellation Canes Venatici.

The following is a list of images of this SN, in chronological order. Click on the name in the "Image Credit" column to see the image. Times and dates are in UT unless otherwise noted. If you know of any others, please tell me!
Image CreditDateMagFilterComments
LOSS 2008/03/03.4516.1CDiscovery
William Wiethoff 2008/03/04.18C
Koichi Itagaki 2008/03/04.61516.1CDiscovery
Stan Howerton 2008/03/0516.2C
Martin Nicholson 2008/03/0514.6C
Koichi Itagaki 2008/03/06.64415.6C
Jørgen Albertsen 2008/03/06.96715.8CR
Grzegorz Duszanowicz 2008/03/06.974C
Martin Mobberley 2008/03/07.874Cmirror
Taurus Hill Observatory 2008/03/07.390C
Koichi Itagaki 2008/03/08.53715.0C
Fenwick Obs 2008/03/09.258C
Andy Cason 2008/03/09.276C
Thomas Winterer 2008/03/09.347C
Koichi Itagaki 2008/03/10.55914.4C
Koichi Itagaki 2008/03/11.69814.0C
Adrian Sonka 2008/03/11.877C
Lorenzo Franco 2008/03/11.99114.3C
John N. Gretchen III 2008/03/12.20014.0C
Koichi Itagaki 2008/03/12.50814.0C
Marc Serrau 2008/03/12.88914.0CR
Diego Rodríguez 2008/03/12.95214.38CR
Joel Nicolas 2008/03/14.92714.0CR
William Wiethoff 2008/03/16.167C
Koichi Itagaki 2008/03/17.74413.3C
Koichi Itagaki 2008/03/18.75213.3C
JM Llapasset 2008/03/19.79713.5CRmirror
JM Llapasset 2008/03/19.80113.5CRmirror
Joel Nicolas 2008/03/20.91813.7CR
Koichi Itagaki 2008/03/21.45913.0C
SWIFT Undatedcolor, space telescope
Pedro Ré 2008/03/23.90413.03CR
Pedro Ré 2008/03/24.89713.09CR
Joel Nicolas 2008/03/25.96613.4CR
Joel Nicolas 2008/03/27.88813.4CR
Marc Serrau 2008/03/28.86213.4CR
William Wiethoff 2008/03/29.129C
Pedro Ré 2008/03/29.84813.374CR
Diego Rodríguez 2008/03/29.98613.78CR
Wolfgang Kloehr 2008/03/30.10313.5CRcolor, Smaller version, Animated GIF (smaller version)
Kopernik 2008/03/30.18813.3
Rezman obs 2008/03/31.917LGHBcolor
Stan Howerton 2008/03/31.24814.3C
Vince Tuboly 2008/03/31.871C
Joel Nicolas 2008/04/01.83113.6CR
CRTS 2008/04/03.012.97R
Marc Serrau 2008/04/03.84213.8CR
Joel Nicolas 2008/04/03.86213.7CR
William Wiethoff 2008/04/04.337C
Marc Serrau 2008/04/04.83013.8CR
Joel Nicolas 2008/04/04.86013.9CR
Pedro Ré 2008/04/04.86813.99C
Pedro Ré 2008/04/04.88414.24C
Diego Rodríguez 2008/03/04.89313.93CR
JM Llapasset 2008/04/04.91013.9CRmirror
JM Llapasset 2008/04/04.91113.9CRmirror
JM Llapasset 2008/04/04.92013.8Rmirror
JM Llapasset 2008/04/04.91814.1Vmirror
Ramon Naves 2008/04/04.95013.85
Koichi Itagaki 2008/04/05.65913.7C
Marc Serrau 2008/04/05.83213.9CR
Rodrigo Losada 2008/04/06.14613.9CR
David Strange 2008/04/06.958C
Marc Serrau 2008/04/07.83413.9CR
David Strange 2008/04/09.006C mirror
Romas Eugene 2008/04/09.914.0R
Marc Serrau 2008/04/11.85314.3CR
Joel Nicolas 2008/04/13.85714.4CR
Marc Serrau 2008/04/14.82714.4CR
Joel Nicolas 2008/04/14.85414.3CR
JM Llapasset image 2008/04/15.82914.4Cmirror
JM Llapasset image 2008/04/15.83114.3Rmirror
JM Llapasset image 2008/04/15.83314.5Vmirror
Marc Serrau 2008/04/16.88314.6V
Marc Serrau 2008/04/16.89114.3R
Marc Serrau 2008/04/16.90215.6B
Romas Eugene 2008/04/17.814.52R
R. Eugene 2008/04/23.8315.3C
David Strange 2008/04/2415.0V
Norman Lockyer 2008/04/24.46216.02
Pedro Ré 2008/04/24.86614.72C
Pedro Ré 2008/04/30.85914.78C
Joel Nicolas 2008/04/30.97514.7CR
JM Llapasset 2008/05/01.83914.9CRmirror
JM Llapasset 2008/05/01.84414.8Rmirror
Pedro Ré 2008/05/02.85815.04C
Hunter Wilson 2008/05/04Ccolor mirror
Rodrigo Losada 2008/05/04.10414.9CR
Marc Serrau 2008/05/06.87614.9R
Marc Serrau 2008/05/06.88314.3V
Marc Serrau 2008/05/06.89416.3B
François Teyssier 2008/05/07.91315.3C
William Wiethoff 2008/05/08.28C
François Teyssier 2008/05/11.89215.4C
Joel Nicolas 2008/05/13.88615.1CR
William Wiethoff 2008/05/24.161C
Radu Gherase 2008/05/30.99315.3V
Pedro Ré 2008/05/31.89415.39C
Joel Nicolas 2008/06/02.89716.2CR
Diego Rodríguez 2008/06/03.92015.44CR
William Wiethoff 2008/06/08.158C
Pedro Ré 2008/06/08.89115.54C
LOSS 2008/06/09C
Joel Nicolas 2008/06/14.88715.4CR
JM Llapasset 2008/06/18.89116.3CRmirror
Pedro Ré 2008/06/21.87816.17C
Joel Nicolas 2008/06/22.91015.5CR
Joel Nicolas 2008/06/29.88715.6CR
Joel Nicolas 2008/07/08.86215.5CR
William Wiethoff 2008/07/09.208C
William Wiethoff 2008/07/23.15C
William Wiethoff 2008/08/19.108C
William Wiethoff 2008/09/08.084C
TNG image 2008/11/24.2CAlso showing 2008ic

If you have observations of this Supernova, please send them to SNWeb. Use this data query to see what information has been reported so far.
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David Bishop