- vsnet-campaign-dn - ooruri.kusastro.kyoto-u.ac.jp

[vsnet-campaign-dn 16519] Gaia DR3 5360745975756861440 bright outburst
by Taichi Kato 30 Sep '22

30 Sep '22

Gaia DR3 5360745975756861440 bright outburst http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia22ebj/ Gaia22ebj AT2022whk 2022-09-27 23:15:32 160.45304 -51.32771 13.43 19.85 0.24 unknown 2022-09-30 11:12:22 ~7 mag outburst in Gaia source, candidate CV 104148.7 -511939 (2000.0) Gaia_DR3_5360745975756861440 CV (score=0.46) 104148.746 -511939.79 (2000.0) Gaia_DR2_5360745975756861440 plx=2.688(0.469) dismod=7.9 pmra=-14.439(0.651) pmdec=9.871(0.673) G=19.801 BP=19.683 RP=19.540 104148.746 -511939.78 (… [View More]

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[vsnet-campaign-dn 16518] TCPJ23580961+5502508: new WZ Sge-type dwarf nova
by Yusuke Tampo 30 Sep '22

30 Sep '22

TCPJ23580961+5502508: new WZ Sge-type dwarf nova Kyoto Univ. Obs. observed TCPJ23580961+5502508 on 30th Sep. We detected early superhumps with a period of ~0.060 d, and an amplitude of 0.2 mag! Therefore TCPJ23580961+5502508 is a new WZ Sge-type dwarf nova, and also has one of the largest early superhump amplitude. Follow-up photometry is strongly encouraged. Best,Yusuke -- ---------------------------------------------- Kyoto University, Graduate School of Department of Astronomy, PhD … [View More]

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[vsnet-campaign-dn 16517] MASTER OT J001204.00-412337.4: sixth rebrightening
by Taichi Kato 29 Sep '22

29 Sep '22

MASTER OT J001204.00-412337.4: sixth rebrightening Josch Hambsch detected another rebrightening on Sep. 29 (15.9 mag).

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[vsnet-campaign-dn 16467] TCP J22561804+4109534: new WZ Sge-type dwarf nova
by tonny.vanmunster＠gmail.com 29 Sep '22

29 Sep '22

Dear colleagues, I have just finished analysing my unfiltered CCD observations of TCP J22561804+4109534, obtained on 2022, July 04/05 at CBA Belgium Observatory, using a 0.40-m f/10.0 telescope and QHY-286M CMOS camera under clear skies. I have been observing this object during multiple nights between June 27th and now. On all previous nights, no obvious modulations were visible in the light curve, except for last night when superhumps with an amplitude of 0.14 mag became very clearly visible. … [View More]

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[vsnet-campaign-dn 16515] ASASSN-19abr outburst
by Taichi Kato 29 Sep '22

29 Sep '22

ASASSN-19abr outburst YYYYMMDD(UT) mag observer 20220914.5495 <154c (Yutaka Maeda) 20220915.5800 <158c (Yutaka Maeda) 20220919.5428 <154c (Yutaka Maeda) 20220920.5683 <160c (Yutaka Maeda) 20220927.512 153C (Mitsutaka Hiraga)

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[vsnet-campaign-dn 16514] MASTER OT J053628.39+135341.7: likely superoutburst
by Taichi Kato 29 Sep '22

29 Sep '22

MASTER OT J053628.39+135341.7: likely superoutburst Type from ZTF data. The 2020 Jan. superoutburst had a precursor. YYYYMMDD(UT) mag observer 20220919.4041 16.617zg (ZTF Alert DC mag (Masci+ 2019)) 20220919.4874 16.572zg (ZTF Alert DC mag (Masci+ 2019)) 20220921.4699 16.499zg (ZTF Alert DC mag (Masci+ 2019)) 20220924.4648 16.752zr (ZTF Alert DC mag (Masci+ 2019)) 20220924.5015 16.864zg (ZTF Alert DC mag (Masci+ 2019)) 20220926.4459 17.232zg (ZTF Alert DC mag (Masci+ 2019))

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[vsnet-campaign-dn 16513] ASASSN-16cz likely superoutburst
by Taichi Kato 28 Sep '22

28 Sep '22

ASASSN-16cz likely superoutburst Type from ZTF data. The 2020 Oct. superoutburst was followed by a rebrightening.

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[vsnet-campaign-dn 16512] ASASSN-22lj: SU UMa star below the period minimum
by Taichi Kato 27 Sep '22

27 Sep '22

ASASSN-22lj: SU UMa star below the period minimum Josch Hambsch has reported observations. Although nightly coverage was short, the object clearly shows superhumps with an amplitude of 0.09 mag. The period (with aliases) is 0.03761(2) d, indicating that the object is likely an EI Psc star. Observations from different longitudes are desired.

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[vsnet-campaign-dn 16511] CY Ori: bright dwarf nova in Orion
by Taichi Kato 22 Sep '22

22 Sep '22

CY Ori: bright dwarf nova in Orion ASAS-SN data: https://asas-sn.osu.edu/sky-patrol/coordinate/50a88cf6-44c8-49b1-a409-8dacb… One of the brightest dwarf novae in Orion. Z Cam-type variable. The 2019 Oct-2020 Jan. standstill slowly brightened with some oscillations. Could be a signature of an IW And star, although typical IW And-type behavior has not yet been recorded. Long, bright outburst in 2021 Aug.-Sep. followed by smaller outbursts. The behavior is somewhat atypical and would … [View More]

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[vsnet-campaign-dn 16510] ASASSN-19zy rare outburst
by Taichi Kato 20 Sep '22

20 Sep '22

ASASSN-19zy rare outburst Past superoutburst in 2019. Superhumps were not well covered by observations. YYYYMMDD(UT) mag observer 20220913.6200 <154c (Yutaka Maeda) 20220915.6800 <167c (Yutaka Maeda) 20220919.6499 146c (Yutaka Maeda)

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