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

[vsnet-alert 27157] ASASSN-15cr superoutburst
by Taichi Kato 01 Dec '22

01 Dec '22

ASASSN-15cr superoutburst Known SU UMa star. YYYYMMDD(UT) mag observer 20221121.7529 <153c (Yutaka Maeda) 20221123.610 <175C (Mitsutaka Hiraga) 20221124.7191 <154c (Yutaka Maeda) 20221126.7194 151:c (Yutaka Maeda) 20221126.7194 151:c (Yutaka Maeda) 20221130.592 151C (Mitsutaka Hiraga)

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[vsnet-alert 27156] V701 Tau likely superoutburst
by Taichi Kato 01 Dec '22

01 Dec '22

V701 Tau likely superoutburst Known SU UMa star. YYYYMMDD(UT) mag observer 20221126.526 <136 (Tsuneo Horie) 20221126.6836 <149c (Yutaka Maeda) 20221126.707 <181C (Mitsutaka Hiraga) 20221130.0909 150cG (Masao Funada)

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[vsnet-alert 27155] [PK2008]J074208.23-104932.4 gradual brightening
by Taichi Kato 01 Dec '22

01 Dec '22

[PK2008]J074208.23-104932.4 gradual brightening This dwarf nova had reached above 13.0 in the past. YYYYMMDD(UT) mag observer 20221005.5002 15.013zr (ZTF Alert DC mag (Masci+ 2019)) 20221008.4836 15.851zg (ZTF Alert DC mag (Masci+ 2019)) 20221010.4899 15.241zr (ZTF Alert DC mag (Masci+ 2019)) 20221013.4609 15.578zg (ZTF Alert DC mag (Masci+ 2019)) 20221013.5001 15.226zr (ZTF Alert DC mag (Masci+ 2019)) 20221015.4612 14.793zg (ZTF Alert DC mag (Masci+ 2019)) 20221019.4810 15.770zg (ZTF Alert DC mag (Masci+ 2019)) 20221019.5041 15.306zr (ZTF Alert DC mag (Masci+ 2019)) 20221022.5029 14.732zr (ZTF Alert DC mag (Masci+ 2019)) 20221026.4375 15.372zg (ZTF Alert DC mag (Masci+ 2019)) 20221030.4831 14.908zr (ZTF Alert DC mag (Masci+ 2019)) 20221106.4168 15.768zg (ZTF Alert DC mag (Masci+ 2019)) 20221106.4566 15.050zr (ZTF Alert DC mag (Masci+ 2019)) 20221112.3987 15.314zr (ZTF Alert DC mag (Masci+ 2019)) 20221114.3749 14.935zr (ZTF Alert DC mag (Masci+ 2019)) 20221115.4397 15.734zg (ZTF Alert DC mag (Masci+ 2019)) 20221115.4706 15.227zr (ZTF Alert DC mag (Masci+ 2019)) 20221117.4821 15.075zg (ZTF Alert DC mag (Masci+ 2019)) 20221118.4619 15.804zg (ZTF Alert DC mag (Masci+ 2019)) 20221118.4824 15.338zr (ZTF Alert DC mag (Masci+ 2019)) 20221119.4603 15.195zg (ZTF Alert DC mag (Masci+ 2019)) 20221119.5044 14.843zr (ZTF Alert DC mag (Masci+ 2019)) 20221121.4650 15.360zr (ZTF Alert DC mag (Masci+ 2019)) 20221123.3418 15.635zg (ZTF Alert DC mag (Masci+ 2019)) 20221123.4403 14.915zr (ZTF Alert DC mag (Masci+ 2019))

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[vsnet-alert 27154] ATLAS16aee bright outburst
by Taichi Kato 01 Dec '22

01 Dec '22

ATLAS16aee bright outburst First bright outburst and may be a super. YYYYMMDD(UT) mag observer 20221121.2547 17.693zr (ZTF Alert DC mag (Masci+ 2019)) 20221123.2157 17.436zg (ZTF Alert DC mag (Masci+ 2019)) 20221123.2439 17.523zr (ZTF Alert DC mag (Masci+ 2019))

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[vsnet-alert 27153] TCPJ04343348+0411387 another rebrightening
by Taichi Kato 30 Nov '22

30 Nov '22

TCPJ04343348+0411387 another rebrightening At least four rebrightenings have been detected. YYYYMMDD(UT) mag observer 20221118.3580 19.703zr (ZTF Alert DC mag (Masci+ 2019)) 20221120.2571 17.427zg (ZTF Alert DC mag (Masci+ 2019)) 20221120.3359 17.614zr (ZTF Alert DC mag (Masci+ 2019))

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[vsnet-alert 27152] ZTF18acrverw superoutburst
by Taichi Kato 30 Nov '22

30 Nov '22

ZTF18acrverw superoutburst YYYYMMDD(UT) mag observer 20221123.3413 16.388zg (ZTF Alert DC mag (Masci+ 2019)) 20221123.4407 16.601zr (ZTF Alert DC mag (Masci+ 2019))

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[vsnet-alert 27151] AQ CMi superhumps
by Taichi Kato 30 Nov '22

30 Nov '22

AQ CMi superhumps Filipp Romanov, Itoh-san and Josch Hambsch have reported observations. The superhump period of 0.06613(2) d was obtained. This object was not well observed (on the contrary to what one might presume) during past superoutbursts and it is still worth observing.

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[vsnet-alert 26797] ASASSN-22ho: new SU UMa-type dwarf nova
by tonny.vanmunster＠gmail.com 28 Nov '22

28 Nov '22

Dear colleagues, I have just finished analysing my unfiltered CCD observations of ASASSN-22ho, obtained on 2022, June 02/03 at CBA Belgium Observatory, using a 0.40-m f/10.0 telescope and QHY-286M CMOS camera under clear skies. Regular superhumps with an amplitude of 0.35 mag are very clearly visible in the resulting light curve, establishing ASASSN-22ho as a new SU UMa-type dwarf nova. A period analysis using the ANOVA, Lomb-Scargle, Generalized-Lomb-Scargle and PDM methods (Peranso 3.0), yields a combined (long) superhump period of 0.0902 +/- 0.0025d. The object was at mag CV = 16.5 on Jun 03rd. I will send my observations to AAVSO, CBA and VSNET for further analysis. Best regards Tonny --- Tonny Vanmunster CBA Belgium Observatory CBA Extremadura Observatory http://www.cbabelgium.com PERANSO : The Light Curve and Period Analysis Software http://www.peranso.com

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[vsnet-alert 27149] RomanovV22 outburst
by Taichi Kato 28 Nov '22

28 Nov '22

RomanovV22 outburst Subtype unknown. YYYYMMDD(UT) mag observer 20220927.8080 <165C (Masayuki Moriyama) 20221104.7329 <168C (Masayuki Moriyama) 20221120.8859 <152C (Masayuki Moriyama) 20221126.8663 166:C (Masayuki Moriyama)

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[vsnet-alert 27148] PY Per brightening?
by Taichi Kato 28 Nov '22

28 Nov '22

PY Per brightening? If confirmed, this would be the first outburst during the current long-lasting faint state. YYYYMMDD(UT) mag observer 20221112.908 <147 (Gary Poyner) 20221113.8542 <141 (Eddy Muyllaert) 20221115.024 <147 (Gary Poyner) 20221115.7282 <149c (Yutaka Maeda) 20221117.8965 <141 (Eddy Muyllaert) 20221119.8056 <172C (Masayuki Moriyama) 20221123.5820 <158c (Yutaka Maeda) 20221124.5919 <154c (Yutaka Maeda) 20221126.5845 149:cG (Yutaka Maeda)

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