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

[vsnet-chat 8829] ASASSN-V J194125.07+152255.4: probably not AM
by Taichi Kato 09 Sep '21

09 Sep '21

ASASSN-V J194125.07+152255.4: probably not AM https://www.aavso.org/vsx/index.php?view=detail.top&oid=602546 Too blue for a polar. Quiescent nearby SU UMa star? 194125.006 +152254.55 (2000.0) Gaia_DR2_4318508939464901760 plx=4.607(0.084) dismod=6.7 pmra=-43.730(0.120) pmdec=-48.479(0.114) G=16.819 BP=16.696 RP=16.717 194125.004 +152254.52 (2000.0) Gaia_EDR3_4318508939464901760 plx=4.639(0.059) dismod=6.7 pmra=-43.613(0.050) pmdec=-48.398(0.052) G=16.960 BP=16.892 RP=16.785

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[vsnet-chat 8828] ASASSN-15hv: likely SU UMa star
by Taichi Kato 08 Sep '21

08 Sep '21

ASASSN-15hv: likely SU UMa star ASAS-SN data: https://asas-sn.osu.edu/sky-patrol/coordinate/e5b3b12e-5e6b-4809-a69d-7015a… Superoutburst in 2015 Sep. + precursor + rebrightening. Other normal outbursts were also present. Bright (13.8 at max) and overlooked DN.

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[vsnet-chat 8827] CRTS J022732.9+130617 refined period
by Taichi Kato 08 Sep '21

08 Sep '21

CRTS J022732.9+130617 refined period Porb=0.1577987(1) d from ZTF data. Eclipses 3 mag deep. Hump not apparent.

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[vsnet-chat 8826] 3XMMJ000511.8+634018 refined period
by Taichi Kato 08 Sep '21

08 Sep '21

3XMMJ000511.8+634018 refined period Polar with two poles. Porb=0.0927005(2) d from ZTF data.

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[vsnet-chat 8825] BS Tri refined orbital period
by Taichi Kato 08 Sep '21

08 Sep '21

BS Tri refined orbital period From ZTF data. Porb=0.06686876(2) d.

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[vsnet-chat 8824] 1RXS J073346.0+261933 period
by Taichi Kato 08 Sep '21

08 Sep '21

1RXS J073346.0+261933 period P=0.1394770(10) d from ZTF data. One maximum in one orbital cycle.

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[vsnet-chat 8823] ZTF18aaakvdk: deeply eclipsing polar
by Taichi Kato 07 Sep '21

07 Sep '21

ZTF18aaakvdk: deeply eclipsing polar From ZTF data. Porb=0.0602840(1) d. Short, deep eclipses (1.4 mag). Approximate epoch BJD 2458754.802. The long-term light variation, low luminosity and red color support the polar classification. 2MASS 044925.788 +563930.63 (2000.0) 16.863 15.860 15.830 044925.6 +563931 (2000.0) ZTFJ044925.70+563931.2 r=19.490 (18.119-20.799) P=0.0603 044925.671 +563931.41 (2000.0) Gaia_DR2_274670550218199552 plx=2.728(0.686) dismod=7.8 pmra=8.495(1.132) pmdec=1.726(0.829) G=19.357 BP=19.538 RP=18.019 044925.767 +563930.43 (2000.0) Gaia_DR2_274670545924226560 plx=1.086(0.833) dismod=9.8 pmra=-3.974(1.138) pmdec=-7.457(1.028) G=20.040 BP=19.893 RP=18.330 044925.672 +563931.41 (2000.0) Gaia_EDR3_274670550218199552 plx=2.100(0.378) dismod=8.4 pmra=6.800(0.648) pmdec=1.679(0.374) G=19.242 BP=19.448 RP=18.055 044925.767 +563930.43 (2000.0) Gaia_EDR3_274670545924226560 plx=2.297(0.686) dismod=8.2 pmra=-3.499(0.877) pmdec=-7.294(0.667) G=19.982 BP=20.191 RP=18.438

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[vsnet-chat 8822] MGAB-V737: Z Cam star
by Taichi Kato 02 Sep '21

02 Sep '21

MGAB-V737: Z Cam star ZTF data. Long standstill in 2020.

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[vsnet-chat 8821] MGAB-V729: likely ER UMa star
by Taichi Kato 02 Sep '21

02 Sep '21

MGAB-V729: likely ER UMa star ZTF data. Supercycle about 40 d at least in 2018-2019.

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[vsnet-chat 8820] MGAB-V696: Z Cam star
by Taichi Kato 02 Sep '21

02 Sep '21

MGAB-V696: Z Cam star ZTF data. Standstills in 2020 Feb., 2021 Jan. etc.

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