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[vsnet-campaign-dn 16283] HV Aur superoutburst
by Taichi Kato 28 Feb '22

28 Feb '22

HV Aur superoutburst YYYYMMDD(UT) mag observer 20220214.5219 <161c (Yutaka Maeda) 20220219.1556 20.098zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220223.5004 149:cG (Yutaka Maeda) 20220224.4982 147cG (Yutaka Maeda) 20220224.5382 153C (Masayuki Moriyama) 20220225.4986 149cG (Yutaka Maeda) 20220226.5071 151c (Yutaka Maeda) 20220227.5055 153c (Yutaka Maeda) 20220228.1561 15.482zg (Zwicky Transient Facility Lasair (Masci+ 2019))

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[vsnet-campaign-dn 16282] ASASSN-19ms possible superoutburst
by Taichi Kato 28 Feb '22

28 Feb '22

ASASSN-19ms possible superoutburst (Suspected type from tge ZTF data) YYYYMMDD(UT) mag observer 20220212.2323 19.451zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220219.2138 19.879zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220226.1663 16.073zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220228.1685 15.659zg (Zwicky Transient Facility Lasair (Masci+ 2019))

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[vsnet-campaign-dn 16281] SX LMi: early stage transition
by Taichi Kato 28 Feb '22

28 Feb '22

SX LMi: early stage transition Itoh-san, Kiyota-san, Kyoto U. team, Kubodera-san, Imamura-san and Filipp Romanov have reported observations. There was a clear stage transition on Feb. 23. This looks like stage B-C transition, and if it is the case, the duration of stage B was short compared to other SU UMa stars with similar orbital periods.

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[vsnet-campaign-dn 16280] ASASSN-22ce: superhump period
by Taichi Kato 28 Feb '22

28 Feb '22

ASASSN-22ce: superhump period Itoh-san and Josch Hambsch have reported observations. The superhump period is 0.07134(2) d. Itoh-san's initial observations were apparently obtained during the final phase of stage A.

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[vsnet-campaign-dn 16279] CRTS J044636.9+083033 superoutburst
by Taichi Kato 27 Feb '22

27 Feb '22

CRTS J044636.9+083033 superoutburst YYYYMMDD(UT) mag observer 20220214.5119 <157c (Yutaka Maeda) 20220215.5260 <154c (Yutaka Maeda) 20220223.4904 153:cG (Yutaka Maeda) 20220223.4905 153:cG (Yutaka Maeda) 20220224.4883 151:cG (Yutaka Maeda) 20220225.4887 153c (Yutaka Maeda) 20220226.024 15.40C (Gary Poyner) 20220226.0254 15.29C (Masao Funada) 20220226.4972 154:c (Yutaka Maeda)

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[vsnet-campaign-dn 16278] CC Cnc outburst
by Taichi Kato 27 Feb '22

27 Feb '22

CC Cnc outburst (UGSU) YYYYMMDD(UT) mag observer 20220224.8674 <141 (Eddy Muyllaert) 20220225.467 <134 (Tsuneo Horie) 20220225.6000 <157c (Yutaka Maeda) 20220225.7475 <162C (Masayuki Moriyama) 20220225.8771 <141 (Eddy Muyllaert) 20220225.930 <149 (Gary Poyner) 20220226.2129 14.383zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220226.469 <118 (Tsuneo Horie) 20220226.6152 140:cG (Yutaka Maeda)

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[vsnet-campaign-dn 16276] ASASSN-22ce: new SU UMa-type dwarf nova
by Taichi Kato 24 Feb '22

24 Feb '22

ASASSN-22ce: new SU UMa-type dwarf nova Itoh-san detected superhumps (0.3 mag) on Feb. 23. The period is slightly longer than 0.06 d.

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[vsnet-campaign-dn 16275] SX LMi superhumps
by Taichi Kato 23 Feb '22

23 Feb '22

SX LMi superhumps Itoh-san has detected superhumps for three nights. In my record, the last observations with detectable superhumps was in 2002 by Kyoto U. team. Past observations were not of good quality and Pdot has not yet been determined.

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[vsnet-campaign-dn 16274] CRTS J172515.5+073249 Gaia detection
by Taichi Kato 21 Feb '22

21 Feb '22

CRTS J172515.5+073249 Gaia detection http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia22arr/ Gaia22arr AT2022cut 2022-02-18 18:04:41 261.31483 7.54699 16.29 20.86 0.11 unknown 2022-02-20 09:58:04 candidate CV CSS100706:172516+073249 in 4.5 mag blue outburst

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[vsnet-campaign-dn 16273] Gaia22asc
by Taichi Kato 21 Feb '22

21 Feb '22

Gaia22asc Rather strange light curve. Blue. http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia22asc/ Gaia22asc AT2021ahpl 2022-02-19 23:04:31 228.99142 -19.29221 17.52 19.95 0.39 unknown 2022-02-21 08:31:14 Gaia and GALEX source brightens by 2.5 mag

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