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

[vsnet-alert 26384] Gaia21efs further brightening
by Taichi Kato 03 Nov '21

03 Nov '21

Gaia21efs further brightening Tonny Vanmunster has reported further observations. The object further brightened to 12.6-12.7 mag on Oct. 31. There were short-period modulations and even a period of 0.054 d is suspected. More data are definitely needed to clarify the nature of this object.

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[vsnet-alert 26383] ASASSN-19wh possible superoutburst
by Taichi Kato 03 Nov '21

03 Nov '21

ASASSN-19wh possible superoutburst Type from ZTF data. Superoutburst + rebrightening in 2020 Nov.-Dec. YYYYMMDD(UT) mag observer 20211030.1531 16.496zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211102.2083 16.903zr (Zwicky Transient Facility Lasair (Masci+ 2019))

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[vsnet-alert 26382] ASASSN-19acl outburst
by Taichi Kato 03 Nov '21

03 Nov '21

ASASSN-19acl outburst First outburst since 2019 Nov. SS Cyg star as inferred from the slow rise in 2019? YYYYMMDD(UT) mag observer 20211102.2489 15.119zr (Zwicky Transient Facility Lasair (Masci+ 2019))

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[vsnet-alert 26381] ASASSN-17jb bright outburst
by Taichi Kato 03 Nov '21

03 Nov '21

ASASSN-17jb bright outburst Brightest outburst recored by ZTF. YYYYMMDD(UT) mag observer 20211030.1299 16.458zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211102.1938 16.628zr (Zwicky Transient Facility Lasair (Masci+ 2019))

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[vsnet-alert 26380] ASASSN-21ui: new WZ Sge-type dwarf nova
by Taichi Kato 03 Nov '21

03 Nov '21

ASASSN-21ui: new WZ Sge-type dwarf nova Kyoto U. team and Tamas Tordai have reported observations. The object shows 0.10-mag double-wave early superhumps with a period of 0.0562(2) d.

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[vsnet-alert 26379] ASASSN-21ui
by Taichi Kato 02 Nov '21

02 Nov '21

ASASSN-21ui Fresh, large-amplitude outburst. ASASSN-21ui --- ------- 1:39:26.68 52:5:40 2021-11-1.3 14.45 SDSS DSS VIZIER ------- CV candidate, matches to SDSS g=22.5, g>18.4 on 2021-10-31.50, g=15.3 on 2021-11-01.15, g=14.7 on 2021-11-01.31. ASASSN-21ui 20211031.50 <184g ASN ASASSN-21ui 20211101.15 153g ASN ASASSN-21ui 20211101.31 147g ASN

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[vsnet-alert 26378] KY Eri superoutburst
by Taichi Kato 02 Nov '21

02 Nov '21

KY Eri superoutburst YYYYMMDD(UT) mag observer 20211023.6359 <156c (Yutaka Maeda) 20211025.6207 147c (Yutaka Maeda) 20211026.6189 152:c (Yutaka Maeda) 20211026.728 153 (Rod Stubbings) 20211026.9100 15.48C (Masao Funada) 20211027.6343 148:cG (Yutaka Maeda) 20211028.6214 153:c (Yutaka Maeda) 20211029.517 153 (Rod Stubbings) 20211029.6289 148c (Yutaka Maeda) 20211030.498 153 (Rod Stubbings) 20211031.515 153 (Rod Stubbings)

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[vsnet-alert 26377] AX Cap superoutburst
by Taichi Kato 02 Nov '21

02 Nov '21

AX Cap superoutburst YYYYMMDD(UT) mag observer 20211017.5471 <159C (Masayuki Moriyama) 20211026.5496 163:C (Masayuki Moriyama) 20211029.467 158 (Rod Stubbings) 20211030.469 158 (Rod Stubbings) 20211031.492 160 (Rod Stubbings)

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[vsnet-alert 26376] SDSS J080303.90+251627.0 likely superoutburst
by Taichi Kato 02 Nov '21

02 Nov '21

SDSS J080303.90+251627.0 likely superoutburst YYYYMMDD(UT) mag observer 20211022.4013 19.935zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211023.8340 <160c (Yutaka Maeda) 20211024.4928 18.700zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211025.8186 <160c (Yutaka Maeda) 20211026.8147 <147c (Yutaka Maeda) 20211027.8322 <151c (Yutaka Maeda) 20211028.8188 155:cG (Yutaka Maeda) 20211029.8513 <132c (Yutaka Maeda) 20211031.5075 15.834zr (Zwicky Transient Facility Lasair (Masci+ 2019))

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[vsnet-alert 26375] ZTF17aaaobyl likely superoutburst
by Taichi Kato 02 Nov '21

02 Nov '21

ZTF17aaaobyl likely superoutburst Type from ZTF data. YYYYMMDD(UT) mag observer 20211031.4967 17.920zr (Zwicky Transient Facility Lasair (Masci+ 2019))

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vsnet-alert November 2021