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[vsnet-campaign-dn 16797] Z Cam fading from standstill
by Taichi Kato 03 Jan '23

03 Jan '23

Z Cam fading from standstill YYYYMMDD(UT) mag observer 20221226.7618 116 (Eddy Muyllaert) 20221227.049 116 (Gary Poyner) 20221227.6697 112cG (Yutaka Maeda) 20221227.6697 112cG (Yutaka Maeda) 20221227.792 11.68 (Pavol A. Dubovsky) 20221229.8181 120 (Eddy Muyllaert) 20221231.6615 125cG (Yutaka Maeda) 20221231.6615 125cG (Yutaka Maeda) 20221231.7454 12.64C (Masayuki Moriyama) 20230102.407 <125 (Takuichiro Onishi)

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[vsnet-campaign-dn 16796] CRTSJ000024.7+332543 superhumps and eclipse?
by Taichi Kato 03 Jan '23

03 Jan '23

CRTSJ000024.7+332543 superhumps and eclipse? Itoh-san reported further observations. The superhump period is 0.09325(8) d or its alias (amplitude 0.23 mag). An eclipse-like feature was again seen on Jan. 1. This object may be UGSU+E.

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[vsnet-campaign-dn 16795] ASASSN-22ak stopped fading
by Taichi Kato 02 Jan '23

02 Jan '23

ASASSN-22ak stopped fading According to observations by Josch Hambsch, this object has been around 19.0 for the last four nights.

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[vsnet-campaign-dn 16794] MASTER OT J054111.82+454054.9 rare? outburst
by Taichi Kato 02 Jan '23

02 Jan '23

MASTER OT J054111.82+454054.9 rare? outburst Only one outburst detection in the ZTF data. YYYYMMDD(UT) mag observer 20221225.5741 <154c (Yutaka Maeda) 20221227.6662 <175C (Masayuki Moriyama) 20221227.7269 <148c (Yutaka Maeda) 20221231.8153 159:C (Masayuki Moriyama)

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[vsnet-campaign-dn 16793] CRTSJ000024.7+332543 superhumps
by Taichi Kato 02 Jan '23

02 Jan '23

CRTSJ000024.7+332543 superhumps Itoh-san confirmed superhumps on the second night. There was no hint of an eclipse.

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[vsnet-campaign-dn 16792] CRTSJ000024.7+332543: superhump and eclipse?
by Taichi Kato 01 Jan '23

01 Jan '23

CRTSJ000024.7+332543: superhump and eclipse? Itoh-san reported observations and detected a 0.3-mag superhump. There was an eclipse-like episode which needs to be confirmed.

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[vsnet-campaign-dn 16791] AY Lac rapidly faded
by Taichi Kato 30 Dec '22

30 Dec '22

AY Lac rapidly faded YYYYMMDD(UT) mag observer 20221220.5363 <139cG (Yutaka Maeda) 20221222.1777 16.273zg (ZTF Alert DC mag (Masci+ 2019)) 20221222.2272 16.306zr (ZTF Alert DC mag (Masci+ 2019)) 20221223.797 163C (Jeremy Shears) 20221224.857 17.21C (Gary Poyner) 20221225.413 18.27C (Hiroshi Itoh) 20221225.4545 <146c (Yutaka Maeda) 20221225.5029 <141cG (Yutaka Maeda) 20221225.5580 <173C (Masayuki Moriyama) 20221226.5805 <167C (Masayuki Moriyama)

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[vsnet-campaign-dn 16790] WX Hyi superoutburst
by Taichi Kato 30 Dec '22

30 Dec '22

WX Hyi superoutburst YYYYMMDD(UT) mag observer 20221222.596 147 (Rod Stubbings) 20221224.619 157 (Rod Stubbings) 20221225.582 155 (Rod Stubbings) 20221226.569 147 (Rod Stubbings) 20221227.578 123 (Rod Stubbings) 20221229.603 116 (Rod Stubbings)

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[vsnet-campaign-dn 16789] ASASSN-22ak: very rapid fading!
by Taichi Kato 30 Dec '22

30 Dec '22

ASASSN-22ak: very rapid fading! Josch Hambsch has reported further observations. Although no definite superhump signal has been detected, the object suddenly faded by 1.8 mag on Dec. 29 (probably more than 2 mag/d since there was no hint of fading during Dec. 28 observations). This fading supports my second interpretation as an AM CVn star. The object is still expected to be detectable and please continue observations.

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[vsnet-campaign-dn 16788] ATLAS17mmm likely superoutburst
by Taichi Kato 28 Dec '22

28 Dec '22

ATLAS17mmm likely superoutburst YYYYMMDD(UT) mag observer 20221221.2523 16.262zg (ZTF Alert DC mag (Masci+ 2019)) 20221221.2940 16.548zr (ZTF Alert DC mag (Masci+ 2019)) 20221226.6417 16.79C (Masayuki Moriyama)

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