[vsnet-outburst 20666] Re: ASASSN-17ei: new SU UMa-type DN
Sebastian Otero
sebastian at aavso.org
Mon Apr 3 09:57:11 JST 2017
This object matches the face on spiral galaxy PGC 2394097.
It has very different magnitudes (ranging from 11.3R (USNO-B1.0) to 18.4G
(Gaia DR1)) depending on the survey's resolution.
I am surprised that no mention to this galaxy has been made both in the
original discovery post and the follow-up observations.
Josch, can you check your images? Is it just a galactic CV superposed to the
galaxy or a SN and the periodocity is spurious?
Cheers,
Sebastian
----------------------
Sebastian Otero
VSX Team
American Association of Variable Star Observers
-----Mensaje original-----
From: Keisuke Isogai
Sent: Sunday, April 2, 2017 5:33 PM
To: vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp ;
vsnet-outburst at ooruri.kusastro.kyoto-u.ac.jp
Subject: [vsnet-outburst 20664] ASASSN-17ei: new SU UMa-type DN
ASASSN-17ei: new SU UMa-type DN
Josch Hambsch has reported the observations. The object shows
superhumps
with a period of 0.058 d and amplitudes of 0.04-0.05 mag.
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