[vsnet-alert 25057] ASASSN-20pb: previous outbursts?

Fri Dec 4 21:01:48 JST 2020

 ASASSN-20pb (UG:)
https://www.aavso.org/vsx/index.php?view=detail.top&oid=2214295

Apparently in outburst on 2015 December 11 (and possibly on
2017 October 5), see complete ASAS-SN Sky Patrol (Shappee et al.
2014ApJ...788...48S and Kochanek et al. 2017PASP..129j4502K)
light curve and data at
https://asas-sn.osu.edu/light_curves/84d2b012-1ac0-4745-b68b-23e4fa3d973d

Apparent outburst (mpg. 14, uncorrected) on 1938 December 26 in
DASCH data (bright on plates md29931 and rh8676, but fainter on
ac34662).

Clear skies,
Patrick
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     Am Freitag, 4. Dezember 2020, 10:25:23 MEZ hat Denis Denisenko d.v.denisenko at gmail.com via vsnet-alert <vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp> Folgendes geschrieben:  

 I have obtained 6x60-sec unfiltered images of the field centered at
ASASSN-20pb remotely with 0.25-m f/4 reflector iTelescope.Net T05
instrument at Mayhill, NM. Here is the animation of three combined images
at 2020 Dec. 04.354 UT with POSS-II Red plate (2x zoom cropped to 5'x5'):

http://scan.sai.msu.ru/~denis/ASASSN-20pb-T05-anim.gif

Indeed, this is an outburst from the faint background star not present in
any catalogs before. Spectroscopy, multi-color photometry and time series
are encouraged.

Denis Denisenko