(Dwarf?) Nova in Vul

Affiliation
American Association of Variable Star Observers (AAVSO)
Mon, 11/06/2023 - 12:26

http://www.cbat.eps.harvard.edu/unconf/followups/J20315286+2740166.html

Flash in Vul has been discovered 231104 (14m) and confirmed 231105 (12m), now discoverer is asking for spectra.

Affiliation
American Association of Variable Star Observers (AAVSO)
DMIB visual observations

2023-11-06 18h07 UTC m12.1 (comp stars 12.2 & 12.1)

2023-11-06 18h15 UTC m12.0 (comp stars 12.1 & 12.0)

Map used X34596BUU with no sequence (yet)

Mewlon 250mm f15 EP 288x - A nice target to follow.

Michel

Affiliation
American Association of Variable Star Observers (AAVSO)
Spectrum now published

     An ATel now suggests this is a WZ Sge-type dwarf nova outburst:

https://www.astronomerstelegram.org/?read=16323

\Brian

Affiliation
American Association of Variable Star Observers (AAVSO)
TCP J20315286+2740166

My first guess at a super-hump period from my CV time-series gives 0.056 days (about 80 minutes).with an amplitude of 0.13 magnitude.

Is it real or is it Memorex?

Jim (DEY)

Affiliation
American Association of Variable Star Observers (AAVSO)
TCP J20315286+2740166

This star has just gone thru a dip in magnitude of about 3 magnitudes and has now recovered back to the original decline trend magnitude.  Looks like a UGWZ light curve.

Jim (DEY)