August 2021 - vsnet-campaign-dn - ooruri.kusastro.kyoto-u.ac.jp

by Taichi Kato

Gaia21dzx Most likely a large-amplitude dwarf nova. http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia21dzx/ Gaia21dzx AT2021xgr 2021-08-26 21:58:43 286.00866 -35.39330 15.00 unknown 2021-08-30 23:17:11 apparently hostless transient 190402.108 -352336.26 (2000.0) GALEX_DR5_6383934048320887191 NUV=20.335(0.149) FUV=19.657(0.107)

1 year, 8 months

2
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[vsnet-campaign-dn 15934] NSV 1440 likely superoutburst

by Patrick Schmeer

NSV 1440 (AM CVn star) Orbital period: 0.0252329 d (36.3354 min) https://www.aavso.org/vsx/index.php?view=detail.top&oid=40064 A precursor outburst was recorded on 2021 August 26, according to recent ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S and Kochanek et al. 2017PASP..129j4502K) light curve and data: https://asas-sn.osu.edu/sky-patrol/coordinate/7915bb9f-d7c9-4e0c-b378-02749… The most recently observed superoutburst occurred in 2019 February. Time-resolved photometry is urgently required. Clear skies, Patrick ------- Am Montag, 30. August 2021, 18:23:06 MESZ hat Rod Stubbings Folgendes geschrieben: The AM CVn-type object NSV 1440 is in bright outburst. NSV 1440 210830.519 129 -- Rod Stubbings Tetoora Road Observatory Victoria, Australia Telescope: "Infinity" 22" f/3.8 stubbo(a)dcsi.net.au http://rodstubbingsobservatory.wordpress.com/

1 year, 9 months

1
0
0 0

[vsnet-campaign-dn 15933] ASASSN-21qg: new SU UMa-type dwarf nova

by Taichi Kato

ASASSN-21qg: new SU UMa-type dwarf nova Berto Monard and Josch Hambsch have reported observations. This object shows superhumps with a period of 0.05539(5) d since Aug. 26.

1 year, 9 months

1
0
0 0

[vsnet-campaign-dn 15932]Gaia17bcx outburst

by Taichi Kato

Gaia17bcx outburst Relatively regular outbursts in the past ZTF data. Type not conclusive. YYYYMMDD(UT) mag observer 20210813.2639 20.441zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210820.2879 16.736zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210823.1819 16.064zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210823.2180 15.588zg (Zwicky Transient Facility Lasair (Masci+ 2019))

1 year, 9 months

1
0
0 0

[vsnet-campaign-dn 15931]CRTS J064804.5+414702 superoutburst

by Taichi Kato

CRTS J064804.5+414702 superoutburst YYYYMMDD(UT) mag observer 20210812.4971 18.805zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210812.5044 18.889zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210817.4860 16.310zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210817.4886 16.314zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210817.4911 16.353zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210817.4936 16.341zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210817.4962 16.331zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210817.4976 16.347zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210817.5000 16.321zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210817.5024 16.307zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210817.5048 16.263zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210817.5072 16.215zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210818.4863 16.495zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210818.4887 16.476zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210818.4912 16.449zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210818.4936 16.450zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210818.4960 16.401zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210818.4980 16.387zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210818.5003 16.364zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210818.5027 16.342zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210818.5051 16.330zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210818.5075 16.346zr (Zwicky Transient Facility Lasair (Masci+ 2019)) Also Gaia detection: http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia21dyz/

1 year, 9 months

1
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2023

2022

2021

vsnet-campaign-dn August 2021