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[vsnet-chat 9169] GX Cas orbital period
by Taichi Kato 25 Apr '22

25 Apr '22

GX Cas orbital period Using ZTF data. Porb=0.0889997(1) d. Orbital hump 0.35 mag.

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[vsnet-chat 9168] MASTER OT J162323.48+782603.3 orbital period
by Taichi Kato 25 Apr '22

25 Apr '22

MASTER OT J162323.48+782603.3 orbital period Using ZTF data. Porb=0.0886719(2) d. Double wave per one period.

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[vsnet-chat 9167] SDSS J073817.75+285519.7 orbital period
by Taichi Kato 25 Apr '22

25 Apr '22

SDSS J073817.75+285519.7 orbital period Using ZTF data. Porb=0.2314694(8) d. Orbital hump + eclipse. UGSS+E.

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[vsnet-chat 9166] AR Pic orbital period
by Taichi Kato 25 Apr '22

25 Apr '22

AR Pic orbital period Using TESS data. Porb=0.0802421(1) d. Two humps (smaller secondary one) in one period and the amplitude is 0.28 mag.

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[vsnet-chat 9165] Re: PY Per: orbital period and possible superoutbursts?
by Taichi Kato 24 Apr '22

24 Apr '22

Re: PY Per: orbital period and possible superoutbursts? ASAS-SN data: https://asas-sn.osu.edu/sky-patrol/coordinate/a420d66a-3448-4149-a24e-c6795… > The best example was 2021 Dec.-2022 Jan. one reaching 13.2 mag. This outburst looks like to have showed two rebrightenings.

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[vsnet-chat 9164] PY Per: orbital period and possible superoutbursts?
by Taichi Kato 24 Apr '22

24 Apr '22

PY Per: orbital period and possible superoutbursts? Using TESS data, Porb = 0.15469(6) d (0.12 mag). This object changed the outburst pattern in 2020 and long, bright outbursts (in addition to short outbursts) appeared. The best example was 2021 Dec.-2022 Jan. one reaching 13.2 mag. This object could have become an SU UMa star as in BO Cet.

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[vsnet-chat 9163] V662 CrA: IW And star
by Taichi Kato 23 Apr '22

23 Apr '22

V662 CrA: IW And star IW And state in 2019. ASAS-SN data: https://asas-sn.osu.edu/sky-patrol/coordinate/f9c5509e-7786-4e5b-8eda-20b90…

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[vsnet-chat 9162] FL Psc: orbital period
by Taichi Kato 23 Apr '22

23 Apr '22

FL Psc: orbital period From TESS data. Porb = 0.056032(3) d, confirming Thorstensen (2020) and improving the period. Amplitude 0.06 mag with double humps per period.

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[vsnet-chat 9161] VW Tuc: orbital period
by Taichi Kato 21 Apr '22

21 Apr '22

VW Tuc: orbital period From TESS data. Porb = 0.20511(9) d. Amplitude 0.05 mag.

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[vsnet-chat 9160] FM Gru: orbital period
by Taichi Kato 21 Apr '22

21 Apr '22

FM Gru: orbital period From TESS data. Porb = 0.158374(8) d. Amplitude 0.18 mag.

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