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[vsnet-campaign-dn 17107] ASASSN-15ku superhump period
by Taichi Kato 30 Mar '23

30 Mar '23

ASASSN-15ku superhump period Based on observations by Tamas Tordai, the superhump period is 0.06645(2) d still allowing aliases due to a long gap in the observation.

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[vsnet-campaign-dn 17106] ASASSN-23bn superhump period
by Taichi Kato 30 Mar '23

30 Mar '23

ASASSN-23bn superhump period Based on observations by Greg Bolt, Peter Starr, Berto Monard and Josch Hambsch, the superhump period is established to be 0.059681(7) d.

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[vsnet-campaign-dn 17105] Wils_SDSSJ073208.11+413008.7 indeed superoutburst
by Taichi Kato 30 Mar '23

30 Mar '23

Wils_SDSSJ073208.11+413008.7 indeed superoutburst YYYYMMDD(UT) mag observer 20230324.3284 15.983o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230324.3373 16.011o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230326.2787 16.603o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230326.2872 16.663o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230326.2904 16.652o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230326.3036 16.682o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230326.5506 <156c (Yutaka Maeda) 20230327.2820 15.989o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230327.2853 15.908o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230327.3030 15.732o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230327.3151 15.814o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230327.5747 <148c (Yutaka Maeda) 20230328.2783 15.836o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230328.2820 15.912o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230328.2883 15.873o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230328.2989 15.937o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230328.5888 155c (Yutaka Maeda)

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[vsnet-campaign-dn 17104] Wils_SDSSJ073208.11+413008.7 possible superoutburst
by Taichi Kato 29 Mar '23

29 Mar '23

Wils_SDSSJ073208.11+413008.7 possible superoutburst YYYYMMDD(UT) mag observer 20230326.5506 <156c (Yutaka Maeda) 20230327.5747 <148c (Yutaka Maeda) 20230328.5888 155c (Yutaka Maeda)

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[vsnet-campaign-dn 17103] ASASSN-18acd likely superoutburst
by Taichi Kato 29 Mar '23

29 Mar '23

ASASSN-18acd likely superoutburst Type from ZTF data. YYYYMMDD(UT) mag observer 20230313.5258 14.969zr (ZTF Alert DC mag (Masci+ 2019)) 20230313.5283 14.973zr (ZTF Alert DC mag (Masci+ 2019)) 20230313.5308 14.991zr (ZTF Alert DC mag (Masci+ 2019)) 20230313.5333 15.004zr (ZTF Alert DC mag (Masci+ 2019)) 20230317.5208 15.337zr (ZTF Alert DC mag (Masci+ 2019)) 20230317.5234 15.273zr (ZTF Alert DC mag (Masci+ 2019)) 20230317.5259 15.242zr (ZTF Alert DC mag (Masci+ 2019)) 20230317.5284 15.161zr (ZTF Alert DC mag (Masci+ 2019)) 20230317.5310 15.156zr (ZTF Alert DC mag (Masci+ 2019)) 20230318.5202 15.505zr (ZTF Alert DC mag (Masci+ 2019)) 20230318.5227 15.530zr (ZTF Alert DC mag (Masci+ 2019)) 20230318.5253 15.528zr (ZTF Alert DC mag (Masci+ 2019)) 20230318.5278 15.508zr (ZTF Alert DC mag (Masci+ 2019)) 20230318.5304 15.520zr (ZTF Alert DC mag (Masci+ 2019)) 20230327.8535 162:C (Masayuki Moriyama) 20230329.8061 166:C (Masayuki Moriyama)

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[vsnet-campaign-dn 17102] V1251 Cyg apparently reached peak
by Taichi Kato 29 Mar '23

29 Mar '23

V1251 Cyg apparently reached peak YYYYMMDD(UT) mag observer 20230327.8551 <159C (Masayuki Moriyama) 20230328.7938 14.29C (Masayuki Moriyama) 20230328.8567 14.04C (Masayuki Moriyama) 20230329.208 12.67C (Gary Poyner) 20230329.7891 12.77V (Masayuki Moriyama) 20230329.7908 13.01C (Masayuki Moriyama)

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[vsnet-campaign-dn 17101] ASASSN-VJ065237.19+243622.3: IW And star, similar to BO Cet?
by Taichi Kato 29 Mar '23

29 Mar '23

ASASSN-VJ065237.19+243622.3: IW And star, similar to BO Cet? ATLAS+ASAS-SNL+ATLAS data. IW And state in 2016-2019. In 2021 Oct. - 2022 Apr., standstill - brightening - fading - cycles of outbursts - long, bright outburst in 2022 Apr. similar to BO Cet. Although the data were not sufficient, this outburst may have been a superoutburst. The object is bright (15-16 mag) and observations are encouraged.

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[vsnet-campaign-dn 17100] SU UMa likely superoutburst
by Taichi Kato 29 Mar '23

29 Mar '23

SU UMa likely superoutburst (From supercycle) YYYYMMDD(UT) mag observer 20230319.5127 147C (Masayuki Moriyama) 20230319.8229 <141 (Jose Ripero) 20230320.3041 14.446o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230320.3099 14.560o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230320.3135 14.531o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230320.3216 14.724o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230320.3247 14.600o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230320.3265 14.618o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230321.8653 <144 (Eddy Muyllaert) 20230323.051 150 (Gary Poyner) 20230324.047 149 (Gary Poyner) 20230326.5921 133cG (Yutaka Maeda) 20230327.6137 114cG (Yutaka Maeda) 20230327.6514 119C (Masayuki Moriyama) 20230327.8326 115 (Eddy Muyllaert)

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[vsnet-campaign-dn 17099] SDSSJ100515.39+191108.0 superoutburst
by Taichi Kato 29 Mar '23

29 Mar '23

SDSSJ100515.39+191108.0 superoutburst YYYYMMDD(UT) mag observer 20230320.1142 <187C (Masao Funada) 20230321.953 <17.30C (Gary Poyner) 20230321.9542 <185C (Masao Funada) 20230326.6222 <149c (Yutaka Maeda) 20230327.6384 125cG (Yutaka Maeda)

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[vsnet-campaign-dn 17098] MASTER OT J174816.22+501723.3 superhumps
by Taichi Kato 29 Mar '23

29 Mar '23

MASTER OT J174816.22+501723.3 superhumps Tamas Tordai's observations indeed recorded superhumps (Mar. 27-28).

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