Supernova 2020nvb in NGC 4457

Supernovae 2020nvb in NGC 4457

This page is devoted to information on Supernova 2020nvb in NGC 4457. 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.

Discovered by Koichi Itagaki (Japan). This one is a Type unknown. This supernova is in the Constellation Virgo.

Web pages dedicated to this SN.

Sky and Telescope Two bright supernovae light up nearby galaxies
AAVSO Alert Notice 709, Blog

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 Credit	Date	Mag	Filter	Comments
K. Itagaki	2020/06/23.496	> 16.0	C
K. Itagaki	2020/06/24.505	15.5	C
Giancarlo Cortini	2020/06/24.900	15.0	C
K. Itagaki	2020/06/26.514	14.3	C
K. Itagaki	2020/07/01.549	13.0	C	Discovery, mirror
K. Itagaki	2020/07/01.550	13.0	C
Gianluca Masi	2020/07/01.841	13.0	R
Mario Morales Aimar	2020/07/01.849	13.08	V
Giancarlo Cortini	2020/07/02.870	12.6	C
Yasuo Sano	2020/07/03.474	12.6	C
Gregor Krannich	2020/07/03.892	12.9	V
Valerio Oss	2020/07/04.016	13.0	C
Robert Spellman	2020/07/04.027		C
Robert Spellman	2020/07/04.167		C
Aldrin B. Gabuya	2020/07/04.731	12.4	V
Marco Lozzi	2020/07/04.875	12.4	V
Claudio Balcon	2020/07/05.850	12.2	C
Nico Montigiani and Massimiliano Mannucci	2020/07/05.875	11.9	R
Yasuo Sano	2020/07/06.479	12.1	C
Diego Rodriguez	2020/07/06.915	11.7	V
Francesco Battistella	2020/07/07.941		C
Stan Howerton	2020/07/18.131	12.8	V
Antonio Giambersio	2020/07/19.812	11.8	C

Light curves and Spectra:

AAVSO light curve
Claudio Balcon Spectrum 20200705.843

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

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David Bishop