November 2021 - vsnet-alert - ooruri.kusastro.kyoto-u.ac.jp

[vsnet-alert 26452] V370 Peg possible superoutburst
by Taichi Kato 21 Nov '21

21 Nov '21

V370 Peg possible superoutburst YYYYMMDD(UT) mag observer 20211119.2141 16.381zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211119.3312 16.564zr (Zwicky Transient Facility Lasair (Masci+ 2019))

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[vsnet-alert 26451] CRTS J081602.5+584824 likely superoutburst
by Taichi Kato 21 Nov '21

21 Nov '21

CRTS J081602.5+584824 likely superoutburst Type from ZTF data. YYYYMMDD(UT) mag observer 20211102.1840 <165C (Eddy Muyllaert) 20211118.4328 15.467zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211120.2789 15.966zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211120.3700 15.951zg (Zwicky Transient Facility Lasair (Masci+ 2019))

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[vsnet-alert 26450] ASASSN-21uy: new SU UMa-type dwarf nova
by Taichi Kato 21 Nov '21

21 Nov '21

ASASSN-21uy: new SU UMa-type dwarf nova Berto Monard has reported observations. Humps with a period of 0.0613(5) and a mean amplitude of 0.09 mag were recorded. Although the profile was doubly humped, the overall feature did not resemble that of early superhumps. The superhumps may be in the growing phase. Further observations are needed to see whether these humps are ordinary superhumps in the growing stage or early superhumps.

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[vsnet-alert 26449] TCP J17242302+3258109: Possible appearance of ordinary superhumps
by 反保雄介 20 Nov '21

20 Nov '21

TCP J17242302+3258109: Possible appearance of ordinary superhumps Kiyota-san and Kyoto Univ. Obs. have reported the observation of TCP J17242302+3258109. Time-resolved observation on 19th Nov. at Kyoto Univ. Obs. showed a large amplitude (~0.2 mags) variation, which can be ordinary superhumps. Due to the limited visibility, the baseline was not enough to determine its variation period. Best, Yusuke

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[vsnet-alert 26447] DT Pyx superoutburst continues
by Taichi Kato 18 Nov '21

18 Nov '21

DT Pyx superoutburst continues YYYYMMDD(UT) mag observer 20211112.8010 <148c (Shizuo Kaneko) 20211112.8013 <149c (Shizuo Kaneko) 20211114.7963 120c (Shizuo Kaneko) 20211114.7967 121c (Shizuo Kaneko) 20211114.8219 125cG (Yutaka Maeda) 20211115.7981 12.37V (Kenji Hirosawa)

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[vsnet-alert 26446] AR Pic possible superoutburst
by Taichi Kato 18 Nov '21

18 Nov '21

AR Pic possible superoutburst YYYYMMDD(UT) mag observer 20211117.476 129 (Rod Stubbings)

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[vsnet-alert 26445] ASASSN-21ux: SU UMa star?
by Taichi Kato 18 Nov '21

18 Nov '21

ASASSN-21ux: SU UMa star? Past ZTF data show some hint of an SU UMa star. YYYYMMDD(UT) mag observer 20211116.6509 15.87C (Masayuki Moriyama)

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[vsnet-alert 26444] ASASSN-21un smoothly fading
by Taichi Kato 18 Nov '21

18 Nov '21

ASASSN-21un smoothly fading The light curve resembles a superoutburst of a WZ Sge star. Itoh-san reported time-resolved photometry on two nights (Nov. 10 and 11) without detectable superhumps. YYYYMMDD(UT) mag observer 20211105.5003 14.977zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211107.4573 15.320zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211113.676 16.27C (Hiroshi Itoh) 20211113.842 16.35C (Hiroshi Itoh) 20211116.7049 167:C (Masayuki Moriyama)

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[vsnet-alert 26443] Gaia21fcw further brightening
by Taichi Kato 17 Nov '21

17 Nov '21

Gaia21fcw further brightening YYYYMMDD(UT) mag observer 20211104.2462 17.410zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211104.2471 17.423zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211106.1553 17.284zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211106.3030 17.231zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211106.3035 17.230zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211108.2198 16.561zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211108.2203 16.547zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211108.2238 16.535zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211111.2421 16.036zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211111.2426 16.020zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211111.2585 16.045zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211114.5755 151C (Masayuki Moriyama)

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[vsnet-alert 26442] ASASSN-17pn outburst?
by Taichi Kato 17 Nov '21

17 Nov '21

ASASSN-17pn outburst? Or noise? YYYYMMDD(UT) mag observer 20211103.7664 <165c (Yutaka Maeda) 20211104.7567 <162c (Yutaka Maeda) 20211106.7638 <164c (Yutaka Maeda) 20211107.8091 <159cG (Yutaka Maeda) 20211114.7694 <154c (Yutaka Maeda) 20211115.7574 126:c (Yutaka Maeda)

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vsnet-alert November 2021