Supernovae 2021dpu in UGC 2261 and 2021cah in UGC 2270

This page is devoted to information on Supernova 2021dpu in UGC 2261 and Supernova 2021cah in UGC 2270.   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 links web page. Occasionally two supernovae show up in the same field of view at the same time.  

image Discovered by Zwicky Transient Facility (ZTF) (USA).   2021dpu is a Type Ia and much dimmer 2021cah is a Type II.   These supernova are in the Constellation Perseus.

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
Odd Trondal image 2021/02/09.7852021cah
Odd Trondal 2021/02/26.9662021dpu 17.0C
Giancarlo Cortini 2021/03/10.8102021cah 19.0
2021dpu 16.5
C
Paolo Campaner 2021/03/12.8832021cah 19.0
2021dpu 16.6
C
Gianluca Masi 2021/03/15.8212021cah 17.4
2021dpu 15.5
R
Felipe Peņa 2021/03/16.196C

Light curves and Spectra:

If you have observations of this Supernova, please send them to vsnet-obs


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