January 2022 - vsnet-campaign-dn - ooruri.kusastro.kyoto-u.ac.jp

[vsnet-campaign-dn 16201] ASASSN-22ao
by Taichi Kato 11 Jan '22

11 Jan '22

ASASSN-22ao ASASSN-22ao --- ------- 23:16:36.34 50:1:52.2 2022-01-9.11 15.42 SDSS DSS VIZIER ------- CV candidate, matches to PS1 g=20.0, g>17.4 on 2021-12-14.16, g=17.1 on 2022-01-07.21, g=15.8 on 2022-01-09.11 ASASSN-22ao 20211214.16 <174g ASN ASASSN-22ao 20220107.21 171g ASN ASASSN-22ao 20220109.11 158g ASN 2MASS 231636.315 +500152.31 (2000.0) 16.293 15.671 16.463 231636.274 +500152.27 (2000.0) Gaia_DR2_1990859453575783680 plx=0.274(0.385) dismod=12.8 pmra=-11.457(0.599) pmdec=-11.396(0.534) G=19.625 BP=19.780 RP=19.140 231636.273 +500152.27 (2000.0) Gaia_EDR3_1990859453575783680 plx=0.566(0.298) dismod=11.2 pmra=-11.471(0.288) pmdec=-10.445(0.254) G=19.612 BP=19.880 RP=19.152 Double outburst in 2018 June-July in ZTF data.

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[vsnet-campaign-dn 16200] IP Peg outburst (since Jan. 6)
by Patrick Schmeer 10 Jan '22

10 Jan '22

IP Pegasi (UGSS+E) Orbital period: 0.15820609 d (3.796946 h) https://www.aavso.org/vsx/index.php?view=detail.top&oid=25356 From "activity at a glance (Jan 10)" (T. Kato, vsnet-outburst 28207): 20220103.4910 150c (Yutaka Maeda) 20220103.5465 153C (Masayuki Moriyama) 20220104.397 <139 (Tsuneo Horie) 20220104.4433 <150c (Yutaka Maeda) 20220104.5567 <138C (Masayuki Moriyama) 20220105.375 <130 (Tsuneo Horie) 20220106.4926 135cG (Yutaka Maeda) 20220106.5498 136C (Masayuki Moriyama) 20220107.401 127 (Tsuneo Horie) 20220107.4631 122cG (Yutaka Maeda) 20220107.4631 122cG (Yutaka Maeda) 20220107.7861 124 (Jose Ripero) A short outburst was observed from 2021 September 16 to 21 according to AAVSO and ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S and Kochanek et al. 2017PASP..129j4502K) data: https://app.aavso.org/webobs/results/?star=000-BCR-486 https://asas-sn.osu.edu/sky-patrol/coordinate/559cd954-4a4e-4da5-888e-17dbe… Clear skies, Patrick

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[vsnet-campaign-dn 16198] ASASSN-15rj possible superoutburst
by Taichi Kato 09 Jan '22

09 Jan '22

ASASSN-15rj possible superoutburst Relatively rare outburst. YYYYMMDD(UT) mag observer 20211231.5565 <166c (Yutaka Maeda) 20220102.5479 <138c (Yutaka Maeda) 20220103.5609 <165c (Yutaka Maeda) 20220104.5130 <158c (Yutaka Maeda) 20220106.5626 <165c (Yutaka Maeda) 20220107.5363 155:c (Yutaka Maeda)

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[vsnet-campaign-dn 16199] RX Vol possible superoutburst
by Taichi Kato 09 Jan '22

09 Jan '22

RX Vol possible superoutburst YYYYMMDD(UT) mag observer 20220107.3229 15.09C (Eddy Muyllaert) 20220107.3231 15.17C (Masao Funada) 20220107.521 153 (Rod Stubbings)

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[vsnet-campaign-dn 16197] TU Tri superoutburst
by Taichi Kato 09 Jan '22

09 Jan '22

TU Tri superoutburst YYYYMMDD(UT) mag observer 20211231.5329 <165c (Yutaka Maeda) 20220102.6834 <154C (Masayuki Moriyama) 20220102.805 <149 (Gary Poyner) 20220103.5374 <165c (Yutaka Maeda) 20220104.4894 145:cG (Yutaka Maeda) 20220104.4894 145:cG (Yutaka Maeda) 20220104.833 147 (Gary Poyner) 20220105.817 148 (Gary Poyner) 20220106.5390 149cG (Yutaka Maeda) 20220107.5108 <144c (Yutaka Maeda) 20220107.921 151: (Gary Poyner)

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[vsnet-campaign-dn 16196] EF Peg superoutburst up to now
by Taichi Kato 09 Jan '22

09 Jan '22

EF Peg superoutburst up to now YYYYMMDD(UT) mag observer 20211227.417 <130 (Tsuneo Horie) 20211228.372 <130 (Tsuneo Horie) 20211230.410 116 (Tsuneo Horie) 20211231.406 112 (Tsuneo Horie) 20211231.4368 113cG (Yutaka Maeda) 20220101.4006 11.40C (Masayuki Moriyama) 20220101.408 112 (Tsuneo Horie) 20220102.407 113 (Tsuneo Horie) 20220102.4192 113C (Masayuki Moriyama) 20220103.405 112 (Tsuneo Horie) 20220103.4440 115cG (Yutaka Maeda) 20220103.4440 115cG (Yutaka Maeda) 20220103.4501 115C (Masayuki Moriyama) 20220103.857 11.81C (Gary Poyner) 20220104.401 112 (Tsuneo Horie) 20220105.399 116 (Tsuneo Horie) 20220105.826 11.73C (Gary Poyner) 20220105.8264 11.70C (Eddy Muyllaert) 20220106.4149 11.66C (Masayuki Moriyama)

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[vsnet-campaign-dn 16195] ASASSN-15cl superoutburst
by Taichi Kato 09 Jan '22

09 Jan '22

ASASSN-15cl superoutburst YYYYMMDD(UT) mag observer 20211221.6522 <146c (Yutaka Maeda) 20211222.6448 <153c (Yutaka Maeda) 20211231.5842 <157c (Yutaka Maeda) 20220103.5890 137cG (Yutaka Maeda) 20220106.6914 136cG (Yutaka Maeda) 20220107.6407 136cG (Yutaka Maeda) 20220107.6407 136cG (Yutaka Maeda)

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[vsnet-campaign-dn 16194] ASASSN-22ae still bright
by Taichi Kato 09 Jan '22

09 Jan '22

ASASSN-22ae still bright Large outburst amplitude. YYYYMMDD(UT) mag observer 20220107.6663 13.95V (Masayuki Moriyama) 20220107.6693 13.72B (Masayuki Moriyama) ASASSN-22ae --- ------- 4:57:3.77 -26:50:7.2 2022-01-5.15 13.13 SDSS DSS VIZIER ------- CV candidate, matches to PS1 g=16.3, g>18.3 on 2022-01-03.28, g=15.3 on 2022-01-04.04, g=13.4 on 2022-01-05.15. ASASSN-22ae 20220103.28 <183g ASN ASASSN-22ae 20220104.04 153g ASN ASASSN-22ae 20220105.15 134g ASN 045703.804 -265007.10 (2000.0) Gaia_DR2_4880708033817333120 plx=3.344(0.885) dismod=7.4 pmra=4.840(1.326) pmdec=1.360(1.611) G=20.583 BP=19.811 RP=19.787 045703.804 -265007.10 (2000.0) Gaia_EDR3_4880708033817333120 plx=1.884(0.613) dismod=8.6 pmra=3.016(0.587) pmdec=0.502(0.667) G=20.462 BP=20.184 RP=19.837

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[vsnet-campaign-dn 16193] V592 Her superoutburst! (since Dec. 24 or earlier)
by Patrick Schmeer 07 Jan '22

07 Jan '22

V592 Herculis (UGWZ) https://www.aavso.org/vsx/index.php?view=detail.top&oid=15403 The current superoutburst started on 2021 December 24 or earlier 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/b56e5c05-0898-48a8-aa17-217f7… In recent decades superoutbursts of V592 Her occurred every 12 years (previous ones in 1986, 1998 and 2010). Clear skies, Patrick ------- Eddy Muyllaert <muyllaert.eddy(a)telenet.be> wrote on 7 January 2022 at 00:03:55 UTC: HERV592 20220106.2444 15.94C OUTBURST! Open University COAST Regards, Eddy

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[vsnet-campaign-dn 16192] GP CVn superoutburst
by Taichi Kato 07 Jan '22

07 Jan '22

GP CVn superoutburst UGSU+E. Last superoutburst in 2021 Feb.-Mar. YYYYMMDD(UT) mag observer 20211213.7983 <153c (Yutaka Maeda) 20211214.7957 <154c (Yutaka Maeda) 20211221.8288 <148c (Yutaka Maeda) 20211222.8169 <156c (Yutaka Maeda) 20211223.8388 <159c (Yutaka Maeda) 20220103.7934 154:c (Yutaka Maeda) 20220106.226 16.04C (Gary Poyner)

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vsnet-campaign-dn January 2022