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

[vsnet-alert 26850] TCP J22561804+4109534: new transient (mag. 14) in Lacerta
by Patrick Schmeer 27 Jun '22

27 Jun '22

TCP J22561804+4109534 (UG:) (submitted to VSX) RA 22h56m18.05s +41°09'54.3" (J2000.0, Pan-STARRS1) 2022 June 26.6897 UT, mag. 14.0 (CMOS camera, unfiltered) Discoverer: Yuji Nakamura (Kameyama, Mie, Japan) 2022 06 26.6897 UT Discovered by Yuji Nakamura, Kameyama, Mie, Japan, on two frames (30-s exp. limiting mag 16.0) taken by 10cm/F3.0 refractor and CMOS camera. Nothing is visible at this location on the frames taken on 2022 June 18.7097 UT (30-s exp. limiting mag 16.0) by same instrument. --- Isao Endoh (NAOJ) http://www.cbat.eps.harvard.edu/unconf/followups/J22561804+4109534.html Complete 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/a342649c-16c0-43e6-86f6-933b9… TCPJ22561804+4109534 20220624.4688 <17.55g ASN TCPJ22561804+4109534 20220626.3301 14.70g ASN TCPJ22561804+4109534 20220626.3314 14.76g ASN TCPJ22561804+4109534 20220626.3326 14.74g ASN TCPJ22561804+4109534 20220626.3379 14.71g ASN TCPJ22561804+4109534 20220626.3391 14.72g ASN TCPJ22561804+4109534 20220626.3404 14.69g ASN Time-resolved and multiband (V, B, ...) photometry are required (spectroscopy is also encouraged). Clear skies, Patrick

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[vsnet-alert 26849] Follow-up observations of TCP J15244460-6059200
by Filipp Romanov 25 Jun '22

25 Jun '22

Observer: Filipp Romanov (Russia). Remotely using T30 (iTelescope.Net) 0.50-m f/6.8 reflector of Siding Spring Observatory (Australia): TCPJ15244460-6059200 20220625.6794 11.25V RFD 0.01 TCPJ15244460-6059200 20220625.6822 12.03B RFD 0.03 TCPJ15244460-6059200 20220625.6849 10.37R RFD 0.01 The object's position is almost the same as the source 5875610751015084544 in the Gaia DR3 catalogue. The ASAS-SN light curve: https://asas-sn.osu.edu/sky-patrol/coordinate/5adadbd1-c25e-4aab-9060-fa7ce… (indicates that the object did not change brightness significantly before 2022-06-25.200 when it had g mag = 10.9).

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[vsnet-alert 26848] V436 Cen reported in outburst
by robin＠threehillsobservatory.co.uk 23 Jun '22

23 Jun '22

Outburst of V436 Cen reported by Paulo Cacella on TNS https://www.wis-tns.org/object/2022nhn

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[vsnet-alert 26847] ASASSN-20pv bright again (AM CVn)
by Taichi Kato 22 Jun '22

22 Jun '22

ASASSN-20pv bright again (AM CVn) Brightening after fading following long standstill-like rebrightening. YYYYMMDD(UT) mag observer 20220528.506 148 (Rod Stubbings) 20220603.466 157 (Rod Stubbings) 20220621.426 143 (Rod Stubbings) 20220621.458 145 (Rod Stubbings)

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[vsnet-alert 26846] Gaia22coq
by Taichi Kato 21 Jun '22

21 Jun '22

Gaia22coq http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia22coq/ Gaia22coq AT2022nbg 2022-06-18 14:45:10 331.72290 38.41940 17.55 unknown 2022-06-20 17:53:28 bright blue transient, rising fast

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[vsnet-alert 26845] V418 Ser superoutburst continues (EI Psc star)
by Taichi Kato 20 Jun '22

20 Jun '22

V418 Ser superoutburst continues (EI Psc star) YYYYMMDD(UT) mag observer 20220601.5617 <155c (Yutaka Maeda) 20220603.449 150 (Rod Stubbings) 20220603.5563 158:c (Yutaka Maeda) 20220604.8875 154cG (Masao Funada) 20220606.5638 154:cG (Yutaka Maeda) 20220606.5638 154:cG (Yutaka Maeda) 20220608.5416 <152c (Yutaka Maeda) 20220608.5697 15.91C (Masayuki Moriyama) 20220616.1153 15.80C (Masao Funada) 20220617.6423 <148c (Yutaka Maeda)

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[vsnet-alert 26844] MGAB-V300: rebrightening from a possible AM CVn star
by Taichi Kato 20 Jun '22

20 Jun '22

MGAB-V300: rebrightening from a possible AM CVn star Type from ZTF data. Rapid fading (2 mag/d) and rebrightening in the past data. YYYYMMDD(UT) mag observer 20220612.2432 14.06C (Masao Funada) 20220612.3877 14.328zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220614.3776 17.032zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220614.4204 17.024zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220615.163 <16.70C (Gary Poyner) 20220615.1640 <173C (Masao Funada) 20220617.715 16.45C (Hiroshi Itoh)

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[vsnet-alert 26843] KLK-43 possible superoutburst
by Taichi Kato 20 Jun '22

20 Jun '22

KLK-43 possible superoutburst Type from ZTF data. YYYYMMDD(UT) mag observer 20220601.3839 16.619zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220601.4591 16.455zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220605.4019 16.620zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220605.4425 16.718zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220607.4141 17.081zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220609.3992 17.148zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220611.4205 17.404zg (Zwicky Transient Facility Lasair (Masci+ 2019))

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[vsnet-alert 26842] CRTSJ141002.2-124809 possible superoutburst
by Taichi Kato 20 Jun '22

20 Jun '22

CRTSJ141002.2-124809 possible superoutburst Type from ZTF data. YYYYMMDD(UT) mag observer 20220617.1898 16.391zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220617.2962 16.141zg (Zwicky Transient Facility Lasair (Masci+ 2019))

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[vsnet-alert 26841] AX Cap superoutburst
by Taichi Kato 20 Jun '22

20 Jun '22

AX Cap superoutburst YYYYMMDD(UT) mag observer 20220603.7407 <155c (Yutaka Maeda) 20220607.4190 17.529zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220608.7060 <149c (Yutaka Maeda) 20220609.4020 16.050zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220609.4387 16.169zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220611.3609 16.358zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220611.6920 <151c (Yutaka Maeda) 20220613.3170 16.861zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220613.3723 16.68C (Masao Funada) 20220613.3969 16.818zg (Zwicky Transient Facility Lasair (Masci+ 2019))

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