LL Andromedae (UGWZ) https://www.aavso.org/vsx/index.php?view=detail.top&oid=260
This WZ Sagittae-type dwarf nova is now rapidly fading according to recent ASAS-SN Sky Patrol data: https://asas-sn.osu.edu/sky-patrol/coordinate/edccf82a-66c7-48c5-8d32-4ac28c...
LL And was already in outburst on 2021 September 12.432 UT according to ATLAS forced photometry results: ANDLL 20210910.4361 19.811cy ATLAS ANDLL 20210912.4317 12.262o ATLAS ANDLL 20210912.4335 12.258o ATLAS ANDLL 20210912.4363 12.249o ATLAS ANDLL 20210912.4414 12.207o ATLAS
ZTF light curve, data, and images (via Lasair): https://lasair.roe.ac.uk/object/ZTF21acbalhp/
AAVSO data: https://app.aavso.org/webobs/results/?star=000-BBB-961
Time-resolved photometry is still encouraged.
Clear skies, Patrick ------------ References: All-Sky Automated Survey for Supernovae (ASAS-SN) Sky Patrol: - Shappee et al., 2014ApJ...788...48S - Kochanek et al., 2017PASP..129j4502K Asteroid Terrestrial-impact Last Alert System (ATLAS): - Tonry et al., 2018PASP..130f4505T Lasair: - Smith et al., 2019RNAAS...3...26S Zwicky Transient Facility (ZTF): - Masci et al., 2019PASP..131a8003M ------------ Taichi Kato wrote on Tuesday, 14 September 2021, 23:47:21 UTC:
LL And outburst
Of course, this is a top-priority target! The 2004 superoutburst occurred in June and no good observations were reported.
See https://ui.adsabs.harvard.edu/abs/2004PASJ...56S.135K/abstract for the 1993 superoutburst. Determination of the superhump period is very important.
YYYYMMDD(UT) mag observer 20210908.9111 <139 (Eddy Muyllaert) 20210909.701 <153 (Hiroyuki Maehara) 20210909.9424 <146 (Eddy Muyllaert) 20210910.219 <17.90C (Gary Poyner) 20210910.9257 <146 (Eddy Muyllaert) 20210910.9375 <146 (Jose Ripero) 20210911.9299 <146 (Eddy Muyllaert) 20210914.901 128C (Jeremy Shears)