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

[vsnet-alert 27939] V1141 Aql likely superoutburst
by Taichi Kato 09 Aug '23

09 Aug '23

V1141 Aql likely superoutburst YYYYMMDD(UT) mag observer 20230804.5798 <177C (Masayuki Moriyama) 20230805.7579 <168C (Masayuki Moriyama) 20230808.446 150 (Rod Stubbings)

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[vsnet-alert 27938] V1028 Cyg superoutburst
by Taichi Kato 09 Aug '23

09 Aug '23

V1028 Cyg superoutburst YYYYMMDD(UT) mag observer 20230801.583 <170C (Mitsutaka Hiraga) 20230802.4144 <16.554g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230802.5673 <165c (Yutaka Maeda) 20230802.7879 <174C (Masayuki Moriyama) 20230803.4070 <17.425g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230803.8088 <169C (Masayuki Moriyama) 20230804.7786 <173C (Masayuki Moriyama) 20230805.4094 14.122g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230805.510 143C (Mitsutaka Hiraga) 20230805.8073 139C (Masayuki Moriyama) 20230805.998 141 (Gary Poyner) 20230806.9229 137 (Eddy Muyllaert) 20230807.023 137 (Gary Poyner) 20230807.076 13.46C (Gary Poyner) 20230807.9167 137 (Eddy Muyllaert) 20230808.166 13.73C (Gary Poyner)

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[vsnet-alert 27937] RU Hor superoutburst
by Taichi Kato 09 Aug '23

09 Aug '23

RU Hor superoutburst (But near the end) YYYYMMDD(UT) mag observer 20230723.0594 <18.418g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230723.3235 <18.396g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230726.3162 13.876g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230728.3117 13.835g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230730.3163 13.791g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230731.3003 13.985g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230801.2995 14.071g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230802.0480 14.307g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230802.3030 14.330g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230803.2886 14.446g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230805.0309 14.757g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230805.487 141 (Rod Stubbings) 20230807.0224 14.822g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230807.540 143 (Rod Stubbings) 20230808.0889 14.929g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230808.560 145 (Rod Stubbings)

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[vsnet-alert 27936] TCP J16294031-4022063: superhump period
by Taichi Kato 07 Aug '23

07 Aug '23

TCP J16294031-4022063: superhump period Superhump period is 0.05378(1) d (shorter one-day alias is less likely considering the Porb distribution of CVs). Observers: Josch Habmsch

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[vsnet-alert 27935] PNV J19030433-3102187: superhump period
by Taichi Kato 07 Aug '23

07 Aug '23

PNV J19030433-3102187: superhump period The object apparently started to show superhumps on Aug. 1. The current mean period is 0.05777(2) d (amplitude 0.15 mag). Observers: Itoh-san, Josch Habmsch, Greg Bolt

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[vsnet-alert 27934] TCP J16420534+8156125: period of early superhumps
by Taichi Kato 07 Aug '23

07 Aug '23

TCP J16420534+8156125: period of early superhumps P=0.06087(1) d. Typical double-wave modulations Amplitude 0.06 mag. The period suggests a WZ Sge star with multiple rebrightenings. Observers: Itoh-san, Stephen Brincat, Kiyota-san, Magnus Larsson, Tonny Vanmunster.

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[vsnet-alert 27933] Vend51 = AT 2023oom: new possible nova in the Andromeda galaxy?
by FIDRICH Robert 06 Aug '23

06 Aug '23

Dear friends, I found a 19.5 magnitudes bright extragalactic nova candidate on my 10x120s stacked images made with Luminance filter using the 0.51m telescope (T11) of UDRO on 2023 August 5 09:02UT. Sprectroscopy, precise astrometry and follow-up observations are urgently needed! More details: http://vendegcsillagkereso.blogspot.com/2023/08/nwew-possible-nova-in-andro… https://www.wis-tns.org/object/2023oom http://www.cbat.eps.harvard.edu/unconf/followups/J00465260+4201428.html Clear skies, Robert Fidrich HAA/VSS

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[vsnet-alert 27932] PNV J19030433-3102187: ordinary superhumps (WZ Sge)
by Taichi Kato 04 Aug '23

04 Aug '23

PNV J19030433-3102187: ordinary superhumps (WZ Sge) The most recent data by Itoh-san on Aug. 3 clearly showed ordinary superhumps. Long waiting time is consistent with the WZ Sge-type classification. (We have received observations from Josch Hambsch, which have not yet been analyzed. More details later).

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[vsnet-alert 27929] TCP J16420534+8156125: most likely WZ Sge star
by Taichi Kato 03 Aug '23

03 Aug '23

TCP J16420534+8156125: most likely WZ Sge star Itoh-san has reported observations. Although the data were somewhat noisy, there appeared to be early superhumps with a period of 0.0610 d and an amplitude of 0.05 mag.

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[vsnet-alert 27930] ASASSN-23gd strange brightening
by Taichi Kato 03 Aug '23

03 Aug '23

ASASSN-23gd strange brightening ASASSN-23gd --- ------- 17:24:44.2 -58:17:42.5 2023-07-28.16 14.53 SDSS DSS VIZIER ------- increased activity in variable star, matches to GAIA DR3 G=14.1, g>17.3 on 2023-07-15.27, g=15.3 on 2023-07-17.25, g=14.7 on 2023-07-25.03. YYYYMMDD(UT) mag observer 20230610.9368 14.132o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230610.9396 14.143o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230610.9720 14.072o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230610.9761 14.218o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230610.9812 14.106o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230611.0056 14.114o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230611.0102 14.096o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230612.2174 14.143c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230612.2224 14.146c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230612.2321 14.133c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230612.2349 14.141c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230612.2426 14.139c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230612.2528 14.121c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230612.2556 14.110c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230622.9504 14.017o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230622.9540 14.022o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230622.9604 14.015o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230622.9802 13.993o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230630.1581 13.708o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230630.1608 13.711o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230630.1663 13.759o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230630.1691 13.933o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230630.1728 13.953o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230630.1775 13.796o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230630.1779 13.969o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230630.2111 14.098o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230701.9004 13.925o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230701.9037 13.939o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230701.9399 13.947o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230701.9684 13.942o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230704.9351 13.815o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230704.9382 13.806o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230704.9440 13.806o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230704.9527 13.802o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230704.9567 13.816o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230704.9577 13.813o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230706.1638 13.612o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230706.1670 13.621o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230706.1720 13.637o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230706.1759 13.643o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230706.1786 13.634o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230706.1832 13.628o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230706.1851 13.651o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230710.9352 13.827c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230710.9385 13.812c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230710.9461 13.796c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230710.9564 13.791c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230713.8816 13.816c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230713.8848 13.827c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230713.8912 13.830c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230713.8930 13.829c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230713.8958 13.839c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230713.9019 13.843c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230713.9042 13.839c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230713.9212 13.896c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230716.8981 14.082c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230716.9013 14.074c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230716.9142 14.076c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230716.9176 14.077c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230716.9185 14.074c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230716.9277 14.070c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230716.9287 14.068c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230716.9344 13.991c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230722.8831 13.800c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230722.8863 13.796c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230722.8928 13.816c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230722.9048 13.834c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230730.1205 13.697o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230730.1238 13.693o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230730.1312 13.664o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230730.1639 13.682o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230731.9853 13.934o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230731.9881 13.425o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230801.0028 13.741o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230801.0130 13.727o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021))

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