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[vsnet-chat 9401] V854 Cen Possible Decline Onset
by Peter Williams 27 May '23

27 May '23

Good morning, The bright southern RCB star V854 Cen has shown a gradual fading over the past 2 weeks, suggesting the possible onset of a deep decline may have commenced. This star was at visual magnitude 8.0 last night (May 18), a half magnitude below its normal maximum brightness. Typically, if it fades to magnitude 8.5 it will continue onto a deep decline. Observations over the next few days will confirm if this does indeed occur. The previous deep decline commenced in July 2022. Recent visual observations of V854 Cen: CEN V854 20230427.428 75 WPX CENV854 20230501.397 74 WPX CENV854 20230504.422 74 WPX CENV854 20230510.393 76 WPX CENV854 20230512.381 76 WPX CENV854 20230516.364 79 WPX CENV854 20230518.448 80 WPX Tks & regards Peter Williams Heathcote NSW 10x50mm binoculars

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[vsnet-chat 9411] CRTS J170208.5+551826: another HT Cam-like object (IP?)
by Taichi Kato 26 May '23

26 May '23

CRTS J170208.5+551826: another HT Cam-like object (IP?) Very rapid fading from outbursts (ZTF+ATLAS). Short low states in quiescence. IP?

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[vsnet-chat 9410] 6dFg2044559-115154 = ASASSN-14ds: UG+IP?
by Taichi Kato 26 May '23

26 May '23

6dFg2044559-115154 = ASASSN-14ds: UG+IP? Rapid fading near termination of outbursts (ATLAS+ZTF) similar to HT Cam. Also X-ray bright.

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[vsnet-chat 9409] ASASSN-16pr: SU UMa star
by Taichi Kato 25 May '23

25 May '23

ASASSN-16pr: SU UMa star From ATLAS data. Superoutburst + rebrightening in 2023 Jan. Other superoutbursts in 2019 Mar. and 2020 Oct.

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[vsnet-chat 9408] Re: ELAISN1MOS15-02 classification and period
by Taichi Kato 24 May '23

24 May '23

> SDSS J182643.55+613816.5 is the already known object > MASTER OT J182643.42+613816 (SU UMa). -> MASTER OT J182643.42+613816.2

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[vsnet-chat 9407] ELAISN1MOS15-02 classification and period
by Taichi Kato 24 May '23

24 May '23

ELAISN1MOS15-02 classification and period https://arxiv.org/abs/2305.13371 "Cataclysmic Variables from Sloan Digital Sky Survey V -- the search for period bouncers continues" I could not confirm the claimed period for ELAISN1 MOS15-02 = SDSS J160809.54+542131.4. The fading rates of outbursts appear to me to small for the claimed period. This object is still a mystery one to me. SDSS J182643.55+613816.5 is the already known object MASTER OT J182643.42+613816 (SU UMa).

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[vsnet-chat 9406] VSOLJ Variable Star Bulletin No.119
by meineko 23 May '23

23 May '23

No.119 Long-lasting high state of the high-field polar AR UMa T.Kato http://vsolj.cetus-net.org/bulletin.html ------------- Seiichiro Kiyota VSOLJ

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[vsnet-chat 9405] ASASSN-17rf: most likely WZ Sge star with dip + rebrightening
by Taichi Kato 21 May '23

21 May '23

ASASSN-17rf: most likely WZ Sge star with dip + rebrightening From ASAS-SN ver 2 + ATLAS. Deep dip (nearly double outburst), long rebrightening + short ones?

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[vsnet-chat 9404] ASASSN-17qk: most likely WZ Sge star with multiple rebrightenings
by Taichi Kato 21 May '23

21 May '23

ASASSN-17qk: most likely WZ Sge star with multiple rebrightenings From ASAS-SN ver 2 + ATLAS. Five rebrightenings. No outburst since.

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[vsnet-chat 9403] VSOLJ Variable Star Bulletin No.118
by meineko 19 May '23

19 May '23

No. 118 Low state in the post-nova V1315 Aql T. Kato http://vsolj.cetus-net.org/bulletin.html ------------ Seiichiro Kioyota Japan

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