- vsnet-campaign-dn - ooruri.kusastro.kyoto-u.ac.jp

[vsnet-campaign-dn 16354] CRTS J124507.8-381322: new SU UMa-type dwarf nova
by Taichi Kato 09 Apr '22

09 Apr '22

CRTS J124507.8-381322: new SU UMa-type dwarf nova Josch Hambsch has reported observations. Superhumps with amplitudes of 0.27 mag and a period of 0.08293(3) d were clearly recorded. YYYYMMDD(UT) mag observer 20220223.7654 <163C (Masayuki Moriyama) 20220407.408 122 (Rod Stubbings) 20220409.471 125 (Rod Stubbings)

1 0

[vsnet-campaign-dn 16353] ASASSN-22eb: new SU UMa-type dwarf nova
by Taichi Kato 08 Apr '22

08 Apr '22

ASASSN-22eb: new SU UMa-type dwarf nova Josch Hambsch and Itoh-san have reported observations. Hambsch's data on Apr. 7 showed clear superhumps. The period was about 0.055 d. This object could be a WZ Sge star.

1 0

[vsnet-campaign-dn 16352] NGCA-V19: polar
by Taichi Kato 05 Apr '22

05 Apr '22

NGCA-V19: polar From ZTF data. Porb=0.0557435(1) d. Broad single maximum per cycle.

1 0

[vsnet-campaign-dn 16351] V803 Cen likely superoutburst
by Taichi Kato 05 Apr '22

05 Apr '22

V803 Cen likely superoutburst YYYYMMDD(UT) mag observer 20220323.440 154 (Rod Stubbings) 20220323.7501 <140C (Masayuki Moriyama) 20220331.458 135 (Rod Stubbings) 20220403.0973 12.95C (Masao Funada)

1 0

[vsnet-campaign-dn 16350] ASASSN-18jc superoutburst
by Taichi Kato 05 Apr '22

05 Apr '22

ASASSN-18jc superoutburst YYYYMMDD(UT) mag observer 20220315.8198 <147c (Yutaka Maeda) 20220316.7929 <135c (Yutaka Maeda) 20220401.7444 142c (Yutaka Maeda) 20220401.7444 142c (Yutaka Maeda) 20220403.7470 142cG (Yutaka Maeda) 20220403.7470 142cG (Yutaka Maeda) Gaia22bhj AT2022gjk 2022-03-25 16:19:00 260.08954 -15.15801 13.44 19.23 0.15 CV 2022-04-04 08:06:21 6 mag outburst in confirmed CV ASASSN-18jc http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia22bhj/

1 0

[vsnet-campaign-dn 16349] Gaia21fgn faded and brightened
by Taichi Kato 04 Apr '22

04 Apr '22

Gaia21fgn faded and brightened According to observations by Itoh-san and Tonny Vanmunster, this object once haded to 17.0 but has brightened to 16.2. Vanmunster's observations showed large-amplitude (0.3 mag) variations.

1 0

[vsnet-campaign-dn 16348] ATLAS22jee = Gaia22bfc: likely CV outburst
by Taichi Kato 02 Apr '22

02 Apr '22

ATLAS22jee = Gaia22bfc: likely CV outburst --- AT2022evo (= ATLAS22jee) ------- 17:0:26.44 9:45:12.6 2022-03-26.35 15.81 SDSS DSS VIZIER ------- known SN candidate, z unkown, discovered 2022/03/16.621, Type unknown http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia22bfc/ Gaia22bfc AT2022evo 2022-03-22 03:54:25 255.11003 9.75379 15.83 unknown 2022-04-01 07:36:17 GALEX: 170026.451 +094513.27 (2000.0) GALEX_DR5_6375524993053230574 NUV=21.793(0.406) FUV=-(-)

1 0

[vsnet-campaign-dn 16347] GQ CVn outburst
by Taichi Kato 02 Apr '22

02 Apr '22

GQ CVn outburst Rapidly fading in Gaia data? Last superoutburst was in 2021 Apr.-May. Gaia22bfh AT2021lfd 2022-03-21 20:53:05 190.80018 43.53315 15.13 18.21 1.57 CV 2022-04-01 07:36:45 6 mag outburst in confirmed CV ASASSN-13ao = GQ CVn http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia22bfh/

1 0

[vsnet-campaign-dn 16346] Gaia22bfp
by Taichi Kato 02 Apr '22

02 Apr '22

Gaia22bfp Bright transient (15.2) without a counterpart. Likely large-amplitude dwarf nova. http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia22bfp/ Gaia22bfp AT2022fpe 2022-03-22 16:55:55 307.70282 -35.85026 15.16 unknown 2022-04-01 18:33:08 bright blue hostless transient

1 0

[vsnet-campaign-dn 16345] ZTF J190628.19-083649.7 = Gaia22beu: UGSS star with prominent secondary
by Taichi Kato 01 Apr '22

01 Apr '22

ZTF J190628.19-083649.7 = Gaia22beu: UGSS star with prominent secondary From ZTF data, Porb = 0.2622809(6) d. Double-wave modulations (amplitude 0.6 mag) + orbital hump. Another outburst in 2019 June in ZTF data.

1 0