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

[vsnet-campaign-dn 16425] ASASSN-14bp likely superoutburst
by Taichi Kato 24 May '22

24 May '22

ASASSN-14bp likely superoutburst YYYYMMDD(UT) mag observer 20220503.4812 <140c (Yutaka Maeda) 20220504.6941 <147C (Masayuki Moriyama) 20220507.4672 <148c (Yutaka Maeda) 20220523.594 143 (Rod Stubbings)

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[vsnet-campaign-dn 16424] XM116HT: ordinary superhumps
by Taichi Kato 23 May '22

23 May '22

XM116HT: ordinary superhumps According to observations by Tamas Tordai on May 22-23, ordinary superhumps were present. They were not apparent a day before.

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[vsnet-campaign-dn 16423] SS UMi superoutburst
by Taichi Kato 23 May '22

23 May '22

SS UMi superoutburst YYYYMMDD(UT) mag observer 20220517.5589 <151c (Yutaka Maeda) 20220517.6916 <167C (Masayuki Moriyama) 20220518.5611 <153c (Yutaka Maeda) 20220521.040 144 (Gary Poyner) 20220521.5408 139cG (Yutaka Maeda) 20220521.5408 139cG (Yutaka Maeda) 20220521.637 142C (Mitsutaka Hiraga)

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[vsnet-campaign-dn 16422] ASASSN-13at superoutburst
by Taichi Kato 23 May '22

23 May '22

ASASSN-13at superoutburst YYYYMMDD(UT) mag observer 20220511.3625 20.186zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220511.4506 19.763zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220514.7069 <158c (Yutaka Maeda) 20220517.6892 <160c (Yutaka Maeda) 20220517.7838 <167C (Masayuki Moriyama) 20220518.6355 141C (Masayuki Moriyama) 20220518.6895 140cG (Yutaka Maeda) 20220518.6896 140cG (Yutaka Maeda) 20220520.1740 14.07C (Masao Funada) 20220521.6647 140cG (Yutaka Maeda)

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[vsnet-campaign-dn 16421] ASASSN-20pv: still bright (AM CVn)
by Taichi Kato 23 May '22

23 May '22

ASASSN-20pv: still bright (AM CVn) YYYYMMDD(UT) mag observer 20220422.0026 14.835g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20220422.0038 15.042g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20220422.2409 15.492g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20220422.2422 15.322g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20220422.2436 15.395g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20220422.606 143 (Rod Stubbings) 20220423.2442 15.314g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20220423.2455 15.455g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20220423.2468 15.419g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20220424.2435 15.497g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20220424.592 144 (Rod Stubbings) 20220425.376 154 (Rod Stubbings) 20220425.592 143 (Rod Stubbings) 20220425.624 144 (Rod Stubbings) 20220428.560 143 (Rod Stubbings) 20220502.610 143 (Rod Stubbings) 20220502.682 143 (Rod Stubbings) 20220503.591 143 (Rod Stubbings) 20220505.562 143 (Rod Stubbings) 20220505.635 144 (Rod Stubbings) 20220505.701 144 (Rod Stubbings) 20220509.599 144 (Rod Stubbings) 20220520.571 144 (Rod Stubbings) 20220521.633 144 (Rod Stubbings) 20220522.553 144 (Rod Stubbings)

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[vsnet-campaign-dn 16420] ASASSN-22gx: new SU UMa-type dwarf nova
by Taichi Kato 23 May '22

23 May '22

ASASSN-22gx: new SU UMa-type dwarf nova According to observations by Berto Monard on May 21-22, superhumps with a period of 0.0584(2) d and an amplitude of 0.19 mag were detected. Earlier observations on May 14 and 15 by Josch Hambsch did not detected apparent modulations.

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[vsnet-campaign-dn 16419] MASTER OT J172758.09+380021.5 superoutburst
by Taichi Kato 19 May '22

19 May '22

MASTER OT J172758.09+380021.5 superoutburst YYYYMMDD(UT) mag observer 20220507.612 <178C (Mitsutaka Hiraga) 20220507.6432 <161c (Yutaka Maeda) 20220509.3896 18.118zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220509.4527 18.176zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220509.6266 <155C (Masayuki Moriyama) 20220511.4122 18.337zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220513.3880 16.832zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220513.4548 18.477zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220514.6343 142:cG (Yutaka Maeda) 20220515.3313 14.213zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220515.3815 14.397zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220517.048 14.27 (Gary Poyner) 20220517.0490 14.42C (Masao Funada) 20220517.6166 143cG (Yutaka Maeda) 20220517.6166 143cG (Yutaka Maeda)

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[vsnet-campaign-dn 16418] CM Del fading
by Taichi Kato 19 May '22

19 May '22

CM Del fading Moriyama-san has pointed out that CM Del is very faint. Looks like an event similar to a dip in IW And stars. YYYYMMDD(UT) mag observer 20220502.4547 13.911zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220503.7520 135C (Masayuki Moriyama) 20220507.8237 137C (Masayuki Moriyama) 20220508.4333 14.126zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220508.4722 14.090zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220509.8141 140:C (Masayuki Moriyama) 20220511.4049 15.339zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220511.4625 15.493zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220513.4055 16.369zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220517.8095 15.42C (Masayuki Moriyama)

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[vsnet-campaign-dn 16417] XM116HT: period of early superhumps
by Taichi Kato 14 May '22

14 May '22

XM116HT: period of early superhumps Itoh-san, Tamas Tordai, Stephen Brincat, Tonny Vanmunster and Vihorlat Observatory team have reported observations. The period of early superhumps is 0.055839(9) d. The variation is still prominent.

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[vsnet-campaign-dn 16415] ASASSN-22gx
by Taichi Kato 13 May '22

13 May '22

ASASSN-22gx ASASSN-22gx --- ------- 18:28:47.09 -74:48:35.5 2022-05-12.15 11.8 SDSS DSS VIZIER ------- CV candidate, matches to GAIA DR2 G=19.9, g>17.7 on 2022-05-10.35, g=12.2 on 2022-05-12.15, g=12.1 on 2022-05-12.31 ASASSN-22gx 20220510.35 <177g ASN ASASSN-22gx 20220512.15 122g ASN ASASSN-22gx 20220512.31 121g ASN In outburst in 2MASS? 2MASS 182847.058 -744834.70 (2000.0) 14.155 14.155 14.175 182847.069 -744834.99 (2000.0) Gaia_DR2_6414712602093478016 plx=2.406(0.475) dismod=8.1 pmra=-3.677(0.604) pmdec=-16.212(1.161) G=19.889 BP=20.079 RP=19.662 182847.068 -744835.00 (2000.0) Gaia_EDR3_6414712602093478016 plx=2.599(0.364) dismod=7.9 pmra=-2.691(0.297) pmdec=-15.721(0.481) G=19.856 BP=20.009 RP=19.581

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