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

[vsnet-newvar 9330] XM116HT: period of early superhumps
by Taichi Kato 14 May '22

14 May '22

XM116HT: period of early superhumps Itoh-san, Tamas Tordai, Stephen Brincat, Tonny Vanmunster and Vihorlat Observatory team have reported observations. The period of early superhumps is 0.055839(9) d. The variation is still prominent.

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[vsnet-newvar 9329] Gaia17cav: UGSU:+E
by Taichi Kato 13 May '22

13 May '22

Gaia17cav: UGSU:+E From ZTF data. Porb=0.0670058(1) d. Eclipse 1.4 mag.

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[vsnet-newvar 9328] MGAB-V872: period
by Taichi Kato 13 May '22

13 May '22

MGAB-V872: period From ZTF data. Porb=0.120052(2) d. Amplitude 0.4 mag.

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[vsnet-newvar 9327] MGAB-V732: polar and period
by Taichi Kato 13 May '22

13 May '22

MGAB-V732: polar and period From ZTF data. Porb=0.0630179(1) d. Two peaks of different amplitude (0.7 mag in total) per cycle. High and low states. 182945.843 +321553.39 (2000.0) Gaia_DR2_4592047847404739968 plx=0.604(0.684) dismod=11.1 pmra=0.601(0.956) pmdec=-8.950(1.727) G=20.339 BP=20.050 RP=19.879 182945.843 +321553.39 (2000.0) Gaia_EDR3_4592047847404739968 plx=1.292(0.293) dismod=9.4 pmra=-0.085(0.290) pmdec=-7.187(0.328) G=20.186 BP=19.935 RP=19.626

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[vsnet-newvar 9326] MGAB-V731: polar and period
by Taichi Kato 13 May '22

13 May '22

MGAB-V731: polar and period From ZTF data. Porb=0.0954179(4) d assuming two peaks per cycle. Half a period is allowed, but would be too exotic. Amplitude 0.25 mag. High and low states. 182733.838 +264653.66 (2000.0) Gaia_DR2_4585338730530417024 plx=0.731(0.485) dismod=10.7 pmra=-5.580(0.809) pmdec=-0.860(1.046) G=19.611 BP=19.641 RP=19.117 182733.838 +264653.66 (2000.0) Gaia_EDR3_4585338730530417024 plx=0.916(0.323) dismod=10.2 pmra=-5.693(0.315) pmdec=-0.532(0.365) G=19.552 BP=19.732 RP=19.053

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[vsnet-newvar 9325] MGAB-V783: polar
by Taichi Kato 13 May '22

13 May '22

MGAB-V783: polar From ZTF data. Porb=0.0947083(1) d. Amplitude 1.3 mag and single peak per cycle. High and low states. 192045.058 +371624.13 (2000.0) Gaia_DR2_2051054519743616512 plx=1.093(0.286) dismod=9.8 pmra=-4.216(0.478) pmdec=-11.123(0.453) G=19.409 BP=19.817 RP=18.875 192045.058 +371624.13 (2000.0) Gaia_EDR3_2051054519743616512 plx=1.089(0.212) dismod=9.8 pmra=-4.553(0.232) pmdec=-10.492(0.269) G=19.276 BP=19.669 RP=18.775 Faint and color is also compatible with a polar.

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[vsnet-newvar 9324] ASASSN-22gx
by Taichi Kato 13 May '22

13 May '22

ASASSN-22gx ASASSN-22gx --- ------- 18:28:47.09 -74:48:35.5 2022-05-12.15 11.8 SDSS DSS VIZIER ------- CV candidate, matches to GAIA DR2 G=19.9, g>17.7 on 2022-05-10.35, g=12.2 on 2022-05-12.15, g=12.1 on 2022-05-12.31 ASASSN-22gx 20220510.35 <177g ASN ASASSN-22gx 20220512.15 122g ASN ASASSN-22gx 20220512.31 121g ASN In outburst in 2MASS? 2MASS 182847.058 -744834.70 (2000.0) 14.155 14.155 14.175 182847.069 -744834.99 (2000.0) Gaia_DR2_6414712602093478016 plx=2.406(0.475) dismod=8.1 pmra=-3.677(0.604) pmdec=-16.212(1.161) G=19.889 BP=20.079 RP=19.662 182847.068 -744835.00 (2000.0) Gaia_EDR3_6414712602093478016 plx=2.599(0.364) dismod=7.9 pmra=-2.691(0.297) pmdec=-15.721(0.481) G=19.856 BP=20.009 RP=19.581

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[vsnet-newvar 9323] ZTF J181732.64+101954.5: ER UMa + Z Cam + IW And
by Taichi Kato 12 May '22

12 May '22

ZTF J181732.64+101954.5: ER UMa + Z Cam + IW And From ZTF data. Supercycle about 56 d before 2020 May. Then long standstill. ER UMa state e.g. 2019 July-Sep. (normal outbursts + superoutburst). In 2019 Mar.-June, two superoutbursts occurred directly from a standstill (like NY Ser), but with the same supercycle. Superhumps with a period of 0.08881(4) d (0.13 mag) were detected during the 2019 June-July superoutburst. IW And state (dip following superoutburst) was recorded in 2018 Mar.-July.

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[vsnet-newvar 9322] ASASSN-21qj: not VY Scl
by Taichi Kato 12 May '22

12 May '22

ASASSN-21qj: not VY Scl ASAS-SN data: https://asas-sn.osu.edu/sky-patrol/coordinate/e62dc628-571c-4558-aa26-44169… Resembles a fader (IS).

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[vsnet-newvar 9321] MGAB-V202: orbital period
by Taichi Kato 12 May '22

12 May '22

MGAB-V202: orbital period From TESS data. Porb=0.17248(2) d (amp. 0.011 mag).

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