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[vsnet-campaign-dn 17358] ASASSN-19ct rebrightening or standstill
by Taichi Kato 12 Jun '23

12 Jun '23

ASASSN-19ct rebrightening or standstill AM CVn star + UGZ. YYYYMMDD(UT) mag observer 20230606.8855 14.592g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230606.9879 14.793g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230607.1534 15.122g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230607.9843 15.106g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230608.1438 15.299g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230608.1450 15.282g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230608.1755 15.097g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230612.510 151 (Rod Stubbings)

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[vsnet-campaign-dn 17357] V589 Her outburst
by Taichi Kato 12 Jun '23

12 Jun '23

V589 Her outburst Changed from UGSU to UG recently. YYYYMMDD(UT) mag observer 20230605.3868 <16.923g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230607.1680 <16.440g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230607.2134 17.558zr (ZTF Alert DC mag (Masci+ 2019)) 20230609.5366 <141c (Yutaka Maeda) 20230612.066 15.06C (Gary Poyner) 20230612.0660 14.91C (Masao Funada)

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[vsnet-campaign-dn 17356] NSV10748 outburst?
by Taichi Kato 12 Jun '23

12 Jun '23

NSV10748 outburst? Correct? Possible superoutburst in 2023 Apr. and another one appears to early. YYYYMMDD(UT) mag observer 20230531.585 <175C (Mitsutaka Hiraga) 20230612.6790 160C (Masayuki Moriyama)

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[vsnet-campaign-dn 17355] AS Pav likely superoutburst
by Taichi Kato 12 Jun '23

12 Jun '23

AS Pav likely superoutburst Type from ATLAS+ASAS-SN DB. Time-resolved photometry is strongly encouraged. YYYYMMDD(UT) mag observer 20230606.4047 <16.625g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230607.2943 <15.414g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230608.3004 15.957g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230612.442 142 (Rod Stubbings)

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[vsnet-campaign-dn 17354] NY Ser possible superoutburst
by Taichi Kato 12 Jun '23

12 Jun '23

NY Ser possible superoutburst YYYYMMDD(UT) mag observer 20230608.2286 <16.850g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230609.2171 16.973g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230609.5205 156:c (Yutaka Maeda) 20230609.6292 170C (Masayuki Moriyama) 20230609.933 16.19C (Gary Poyner) 20230609.9347 15.74cG (Masao Funada) 20230612.4945 150C (Masayuki Moriyama) 20230612.5304 146cG (Yutaka Maeda) 20230612.5305 146cG (Yutaka Maeda)

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[vsnet-campaign-dn 17353] ASASSN-22ak rebrightening
by Taichi Kato 12 Jun '23

12 Jun '23

ASASSN-22ak rebrightening Josch Hambsch has reported observations. The object returned to the bright state on June 9-10 and was still bright on the next night.

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[vsnet-campaign-dn 17352] MisV1449: orbital and superhump periods
by Taichi Kato 11 Jun '23

11 Jun '23

MisV1449: orbital and superhump periods Using ZTF data, I obtained an orbital period of 0.1239497(1) d (very clear ellipsoidal variation, 0.17 mag). Tonny Vanmunster and Josch Hambsch reported observations. The superhump period is 0.1333(2) d. This superhump excess (stage B) corresponds to q=0.326.

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[vsnet-campaign-dn 17351] ASASSN-23el: new SU UMa star
by Taichi Kato 11 Jun '23

11 Jun '23

ASASSN-23el: new SU UMa star Berto Monard has reported observations. The object shows superhumps (0.19 mag) with a period of 0.0776(2) d. At least not an extreme WZ Sge star.

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[vsnet-campaign-dn 17350] ASASSN-22ak sudden fading
by Taichi Kato 09 Jun '23

09 Jun '23

ASASSN-22ak sudden fading Josch Hambsch detected a sudden fading on June 8 (16.2 to 18.0 in one day). The object was still fading. No major rebrightenings were recorded after past outbursts.

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[vsnet-campaign-dn 17349] ASASSN-13cz superoutburst
by Taichi Kato 08 Jun '23

08 Jun '23

ASASSN-13cz superoutburst Only the final part was observed during the 2016 one. Supercycle 460 d recently and now is the expected time. YYYYMMDD(UT) mag observer 20230521.6193 <178C (Masayuki Moriyama) 20230523.5753 <161c (Yutaka Maeda) 20230524.3048 19.355zg (ZTF Alert DC mag (Masci+ 2019)) 20230602.5198 <160c (Yutaka Maeda) 20230603.5254 <163c (Yutaka Maeda) 20230604.5180 <159c (Yutaka Maeda) 20230605.2286 17.925zg (ZTF Alert DC mag (Masci+ 2019)) 20230605.2571 17.553zr (ZTF Alert DC mag (Masci+ 2019)) 20230607.5265 147c (Yutaka Maeda) 20230607.5265 147c (Yutaka Maeda)

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