December 2022 - vsnet-newvar - ooruri.kusastro.kyoto-u.ac.jp

[vsnet-newvar 9661] ASASSN-22ak period?
by Taichi Kato 25 Dec '22

25 Dec '22

ASASSN-22ak period? Josch Hambsch has reported observations on three nights. Although the amplitude was an order of 0.1 mag with limited statistics, a period of either 0.0412 d or double one (allowing aliases) is suggested. Considering the unusual outburst properties, further observations are strongly needed.

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[vsnet-newvar 9660] ATLAS17myk outburst
by Taichi Kato 24 Dec '22

24 Dec '22

ATLAS17myk outburst YYYYMMDD(UT) mag observer 20220828.4538 21.848zg (Zwicky Transient Facility (Masci et al., 2019)) 20220828.4758 21.660zr (Zwicky Transient Facility (Masci et al., 2019)) 20220907.4434 21.200zr (Zwicky Transient Facility (Masci et al., 2019)) 20221221.2137 16.809zg (ZTF Alert DC mag (Masci+ 2019)) 20221221.2142 16.783zg (ZTF Alert DC mag (Masci+ 2019)) 20221221.2411 16.949zr (ZTF Alert DC mag (Masci+ 2019)) 20221221.2845 16.928zr (ZTF Alert DC mag (Masci+ 2019))

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[vsnet-newvar 9654] ASASSN-15sm possible superoutburst
by Taichi Kato 23 Dec '22

23 Dec '22

ASASSN-15sm possible superoutburst Known SU UMa star. YYYYMMDD(UT) mag observer 20221217.3919 15.280zr (ZTF Alert DC mag (Masci+ 2019)) 20221217.4054 15.041zg (ZTF Alert DC mag (Masci+ 2019)) 20221217.4059 15.063zg (ZTF Alert DC mag (Masci+ 2019)) 20221217.4342 15.260zr (ZTF Alert DC mag (Masci+ 2019)) 20221218.1662 15.36C (Masao Funada)

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[vsnet-newvar 9658] CRTSJ085024.2-235811 (AM CVn:) still bright
by Taichi Kato 23 Dec '22

23 Dec '22

CRTSJ085024.2-235811 (AM CVn:) still bright YYYYMMDD(UT) mag observer 20221201.5035 16.958zr (ZTF Alert DC mag (Masci+ 2019)) 20221210.4403 18.064zr (ZTF Alert DC mag (Masci+ 2019)) 20221210.4607 17.904zg (ZTF Alert DC mag (Masci+ 2019)) 20221217.4346 16.853zr (ZTF Alert DC mag (Masci+ 2019)) 20221217.4401 16.633zg (ZTF Alert DC mag (Masci+ 2019))

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[vsnet-newvar 9657] CRTSJ053541.8-113717 possible superoutburst
by Taichi Kato 23 Dec '22

23 Dec '22

CRTSJ053541.8-113717 possible superoutburst YYYYMMDD(UT) mag observer 20221202.6253 <158c (Yutaka Maeda) 20221205.6474 <153c (Yutaka Maeda) 20221206.6187 <149c (Yutaka Maeda) 20221209.6363 <153c (Yutaka Maeda) 20221217.2954 16.181zr (ZTF Alert DC mag (Masci+ 2019)) 20221217.3159 16.083zg (ZTF Alert DC mag (Masci+ 2019)) 20221220.4869 <153c (Yutaka Maeda)

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[vsnet-newvar 9656] ASASSN-19acs possible superoutburst
by Taichi Kato 23 Dec '22

23 Dec '22

ASASSN-19acs possible superoutburst YYYYMMDD(UT) mag observer 20221217.2230 17.615zg (ZTF Alert DC mag (Masci+ 2019)) 20221217.2819 17.481zr (ZTF Alert DC mag (Masci+ 2019))

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[vsnet-newvar 9655] ASASSN-16dg outburst
by Taichi Kato 23 Dec '22

23 Dec '22

ASASSN-16dg outburst Brightest outburst recorded by ZTF. YYYYMMDD(UT) mag observer 20221217.4346 15.264zr (ZTF Alert DC mag (Masci+ 2019)) 20221217.4401 15.076zg (ZTF Alert DC mag (Masci+ 2019))

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[vsnet-newvar 9653] AHTS-2020-006 likely superoutburst continues
by Taichi Kato 22 Dec '22

22 Dec '22

AHTS-2020-006 likely superoutburst continues YYYYMMDD(UT) mag observer 20221202.7889 161C (Masayuki Moriyama) 20221209.3614 16.335zr (ZTF Alert DC mag (Masci+ 2019)) 20221209.3785 16.296zg (ZTF Alert DC mag (Masci+ 2019)) 20221211.7987 <155C (Masayuki Moriyama) 20221215.3381 16.755zr (ZTF Alert DC mag (Masci+ 2019))

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[vsnet-newvar 9652] MGAB-V311 likely superoutburst
by Taichi Kato 22 Dec '22

22 Dec '22

MGAB-V311 likely superoutburst Type from ZTF data. Short supercycle. YYYYMMDD(UT) mag observer 20221215.2865 16.925zr (ZTF Alert DC mag (Masci+ 2019))

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[vsnet-newvar 9651] CRTSJ050716.2+125314 possible superoutburst
by Taichi Kato 22 Dec '22

22 Dec '22

CRTSJ050716.2+125314 possible superoutburst Known SU UMa star. YYYYMMDD(UT) mag observer 20221215.3215 16.784zg (ZTF Alert DC mag (Masci+ 2019))

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