Assassin Picture of the Week

2013 August 24

It is Good to be Lucky!

Unfortunately, we were not lucky in this case. Bright SN 2013ej in a relatively nearby galaxy M74, currently the brightest known supernova on the sky, was discovered by LOSS on July 25, 2013. As you can see from our APOW, M74 is in a field that we are observing regularly, including on July 23, 2013, 1.91 days before SN 2013ej was discovered, but there was nothing there in our data. Type IIP supernovae like SN 2013ej rise very quickly and we simply missed it by a day, at V=12.5 it is very bright even when using our relatively small 14-cm lenses (for example, LOSS uses a 0.7-m diameter telescope). In the next few months we will add four more "Assassins" in Hawaii and Chile, allowing us to scan the sky more quickly, so maybe we will be more lucky next time.
See previous APOWs:

Extreme M-dwarf Flare Observed by ASAS-SN

Neptune Discovered!

Multiband photometric follow-up of ASASSN-13aw (SN 2013dr);

"Assassin" Unit 1: Brutus;

How ASAS-SN Discovers Supernovae: Case of Supernova ASASSN-13bb;

NGC 2617: Dramatic Seyfert Type Change;

ASASSN-13/SN 2013da: Our First Supernova Three Weeks Later;

M31 and Companions;

This homepage is maintained by Ben Shappee and Kris Stanek. Updated Sat Aug 24 16:15:44 EDT 2013

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