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[vsnet-campaign-dn 16411] XM116HT = TCP J14225968+4122545: WZ Sge-type star with prominent early superhumps
by Taichi Kato 12 May '22

12 May '22

XM116HT = TCP J14225968+4122545: WZ Sge-type star with prominent early superhumps Tamas Tordai has reported observations. The object shows double-wave 0.3-mag early superhumps. The period is still somewhat uncertain (0.0557-0.0571 d). Bright WZ Sge stars with large-amplitude early superhumps are rare and observations are encouraged.

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[vsnet-campaign-dn 16413] ASASSN-22gm: superhumps (AM CVn)
by Taichi Kato 12 May '22

12 May '22

ASASSN-22gm: superhumps (AM CVn) Josch Hambsch has reported further observations. The data show 0.2-mag superhumps with a period of 0.0291(2) d. Further observations are strongly encouraged.

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[vsnet-campaign-dn 16412] ASASSN-22gr
by Taichi Kato 11 May '22

11 May '22

ASASSN-22gr ASASSN-22gr --- ------- 15:49:8.51 -62:8:20.1 2022-05-9.24 14.57 SDSS DSS VIZIER ------- CV candidate, matches to GAIA DR2 G=20.5, g>18.3 on 2022-05-01.09, g=17.3 on 2022-05-02.18, g=14.9 on 2022-05-09.23, g=15.2 on 2022-05-10.26 ASASSN-22gr 20220501.09 <183g ASN ASASSN-22gr 20220502.18 173g ASN ASASSN-22gr 20220509.23 149g ASN ASASSN-22gr 20220510.26 152g ASN

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[vsnet-campaign-dn 16410] ASASSN-22go
by Taichi Kato 10 May '22

10 May '22

ASASSN-22go ASASSN-22go --- ------- 11:55:6.56 -70:40:39.3 2022-05-7.04 14.55 SDSS DSS VIZIER ------- CV candidate, no Vizier match, g>18.3 on 2022-05-05.17, g=15.0 on 2022-05-07.00, g=15.4 on 2022-05-09.07, g=15.6 on 2022-05-09.17 ASASSN-22go 20220505.17 <183g ASN ASASSN-22go 20220507.00 150g ASN ASASSN-22go 20220509.07 154g ASN ASASSN-22go 20220509.17 156g ASN

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[vsnet-campaign-dn 16409] ASASSN-20pv: second post-superoutburst plateau (AM CVn)
by Taichi Kato 10 May '22

10 May '22

ASASSN-20pv: second post-superoutburst plateau (AM CVn) YYYYMMDD(UT) mag observer 20220415.1853 15.146g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20220415.1866 15.245g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20220415.1878 15.577g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20220416.1989 15.410g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20220416.2002 15.597g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20220416.2015 15.608g (ASAS-SN survey (… [View More]

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[vsnet-campaign-dn 16408] ASASSN-22gb: stage A superhumps
by Taichi Kato 09 May '22

09 May '22

ASASSN-22gb: stage A superhumps Berto Monard and Josch Hambsch have reported further observations. The amplitudes of superhumps have been growing and the maxima were expressed by 0.05442(5) d (stage A superhumps). The long duration of stage A suggests a relatively small q.

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[vsnet-campaign-dn 16407] ASASSN-22gm: eclipsing AM CVn star
by Taichi Kato 09 May '22

09 May '22

ASASSN-22gm: eclipsing AM CVn star Berto Monard has reported observations. I obtained the following ephemeris (single night): BJD(Min) = 2459705.53602(7) + 0.02890(3) E Eclipse depth 0.26 mag. No superhumps were detected. The orbital profile is somewhat strange in that it showed two maxima in one orbital cycle. They might be (super)hump-like variations with a period of the orbital period. The object is most likely an eclipsing AM CVn star with infrequent outbursts. Further … [View More]

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[vsnet-campaign-dn 16406] Re: PR Her
by Patrick Schmeer 08 May '22

08 May '22

PR Herculis (UGWZ) https://www.aavso.org/vsx/index.php?view=detail.top&oid=15127 PR Her was fainter than mag. 16 on 2022 May 8.38 UT according to recent ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S and Kochanek et al. 2017PASP..129j4502K) data: https://asas-sn.osu.edu/sky-patrol/coordinate/6c10f9f0-10b3-4980-a70c-00627… Further … [View More]

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[vsnet-campaign-dn 16405] V610 Her likely superoutburst
by Taichi Kato 08 May '22

08 May '22

V610 Her likely superoutburst YYYYMMDD(UT) mag observer 20220501.3925 20.099zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220501.3930 20.843zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220503.3312 17.722zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220503.3999 17.464zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220503.4162 17.336zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220503.4452 17.168zg (Zwicky Transient Facility Lasair (… [View More]

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[vsnet-campaign-dn 16404] NSV 4618 superoutburst
by Taichi Kato 07 May '22

07 May '22

NSV 4618 superoutburst YYYYMMDD(UT) mag observer 20220427.1620 16.578zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220427.1695 17.765zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220428.1691 16.616zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220428.1913 16.736zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220430.1933 17.887zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220430.1947 17.700zg (Zwicky Transient Facility Lasair (Masci+ … [View More]

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