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

[vsnet-alert 27761] Gaia18ama outburst
by Taichi Kato 18 May '23

18 May '23

Gaia18ama outburst Suspected SU UMa star. No true superoutburst was recorded in the past. YYYYMMDD(UT) mag observer 20230422.4431 17.150zg (ZTF Alert DC mag (Masci+ 2019)) 20230422.4659 18.140zr (ZTF Alert DC mag (Masci+ 2019)) 20230424.4425 18.245zr (ZTF Alert DC mag (Masci+ 2019)) 20230424.4608 16.939g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230424.4661 16.963zg (ZTF Alert DC mag (Masci+ 2019)) 20230426.4246 17.074zg (ZTF Alert DC mag (Masci+ 2019)) 20230426.4538 18.180zr (ZTF Alert DC mag (Masci+ 2019)) 20230428.4456 17.035zg (ZTF Alert DC mag (Masci+ 2019)) 20230428.4650 18.126zr (ZTF Alert DC mag (Masci+ 2019)) 20230430.0831 16.440g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230430.4459 16.522zr (ZTF Alert DC mag (Masci+ 2019)) 20230430.4654 16.096zg (ZTF Alert DC mag (Masci+ 2019)) 20230506.3677 <16.859g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230516.2333 14.177g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230517.651 140c (Tadashi Kojima)

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[vsnet-alert 27760] V1315 Aql: low state
by Taichi Kato 17 May '23

17 May '23

V1315 Aql: low state First time since the discovery? YYYYMMDD(UT) mag observer 20230404.3761 15.710o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230404.3799 15.561g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230404.3812 15.669o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230404.4021 15.810o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230404.4091 18.684o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230405.3337 15.822o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230405.3374 15.832o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230405.3434 15.783o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230405.3531 16.010o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230405.6187 15.712o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230405.6225 15.858o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230405.6292 15.640o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230405.6356 15.672o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230406.1448 16.230g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230408.3470 16.307o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230408.3502 16.438o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230408.3557 16.441o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230408.3677 16.447o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230408.4951 17.476zg (ZTF Alert DC mag (Masci+ 2019)) 20230410.3144 16.017g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230410.4830 16.962zg (ZTF Alert DC mag (Masci+ 2019)) 20230410.5350 <16.939g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230411.3248 16.752o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230411.3467 16.466o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230411.3499 16.635o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230411.3504 16.598o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230411.3540 16.480o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230411.3555 16.447o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230411.3595 16.503o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230411.3707 16.595o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230414.3696 17.235o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230414.3728 17.364o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230414.3774 17.212o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230414.3913 17.041o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230414.4199 16.946o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230416.0655 17.560o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230416.0664 17.479o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230416.0696 17.567o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230416.0701 17.591o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230416.0802 17.648o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230416.1050 18.062o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230416.1069 17.831o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230416.1170 17.555o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230416.3600 16.537g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230417.3268 17.267c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230417.3304 17.089c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230417.3367 17.154c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230417.3745 18.282c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230418.3037 16.643g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230419.1348 17.731o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230419.1382 17.658o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230419.1444 17.585o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230419.1559 17.736o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230419.1675 17.629o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230419.3823 16.602g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230420.3131 17.263c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230420.3163 17.375c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230420.3218 17.408c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230420.4482 17.224zg (ZTF Alert DC mag (Masci+ 2019)) 20230421.3900 16.916g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230422.4440 17.381zg (ZTF Alert DC mag (Masci+ 2019)) 20230423.2823 16.462g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230424.4802 17.161zg (ZTF Alert DC mag (Masci+ 2019)) 20230425.4659 <17.130g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230426.4260 16.414zg (ZTF Alert DC mag (Masci+ 2019)) 20230427.4439 16.832g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230429.3085 <16.767g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230429.3330 17.911c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230429.3348 17.810c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230429.3418 17.513c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230429.3473 17.644c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230430.3712 16.337g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230501.0769 17.256o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230501.0793 17.680o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230501.0820 18.581o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230501.3425 16.221g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230501.3762 16.370g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230502.2956 16.869o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230502.2974 16.888o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230502.3006 17.251o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230502.3060 17.175o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230504.0396 17.455o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230504.0423 17.253o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230504.0455 17.571o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230504.0519 17.022o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230505.2677 17.204o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230505.2704 17.604o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230505.2930 17.213o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230505.2980 16.834o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230507.0458 16.990o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230507.0481 17.013o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230507.0572 17.058o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230507.0627 17.241o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230507.4244 <16.390g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230507.4244 <16.830g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230508.2482 17.469o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230508.2500 17.419o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230508.2532 17.470o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230508.2802 17.354o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230508.4214 17.236zg (ZTF Alert DC mag (Masci+ 2019)) 20230509.4362 <16.864g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230510.0780 17.592o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230510.0812 17.615o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230510.0848 17.609o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230510.1133 17.469o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230511.3918 17.126o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230511.3950 17.018o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230511.4046 16.931o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230511.4174 17.459o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230512.2646 15.992g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230514.3214 16.232g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230515.3128 16.445g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230515.5768 17.135o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230515.5832 17.396o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230516.3238 16.519g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014))

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[vsnet-alert 27759] ZTF23aajjayv = ATLAS23khx = TCPJ13070070+0659214: likely WZ Sge star
by Taichi Kato 17 May '23

17 May '23

ZTF23aajjayv = ATLAS23khx = TCPJ13070070+0659214: likely WZ Sge star (ASAS-SN positive data before May 13 may have been false detections) Large-amplitude outburst. YYYYMMDD(UT) mag observer 20230512.0661 <16.962g (ASAS-SN survey (Shappee+2014; Kochanek+2017)) 20230512.0673 <17.048g (ASAS-SN survey (Shappee+2014; Kochanek+2017)) 20230512.0686 16.874g (ASAS-SN survey (Shappee+2014; Kochanek+2017)) 20230512.2494 <15.386g (ASAS-SN survey (Shappee+2014; Kochanek+2017)) 20230512.2507 <15.026g (ASAS-SN survey (Shappee+2014; Kochanek+2017)) 20230512.2519 <14.876g (ASAS-SN survey (Shappee+2014; Kochanek+2017)) 20230512.4247 <17.254g (ASAS-SN survey (Shappee+2014; Kochanek+2017)) 20230512.4260 16.854g (ASAS-SN survey (Shappee+2014; Kochanek+2017)) 20230512.4273 16.891g (ASAS-SN survey (Shappee+2014; Kochanek+2017)) 20230513.3678 15.602g (ASAS-SN survey (Shappee+2014; Kochanek+2017)) 20230513.3691 15.647g (ASAS-SN survey (Shappee+2014; Kochanek+2017)) 20230513.3703 15.463g (ASAS-SN survey (Shappee+2014; Kochanek+2017)) 20230514.2359 14.480o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230514.2438 14.520o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230514.2479 14.494o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230514.3689 14.031g (ASAS-SN survey (Shappee+2014; Kochanek+2017)) 20230514.3701 14.026g (ASAS-SN survey (Shappee+2014; Kochanek+2017)) 20230514.3714 14.040g (ASAS-SN survey (Shappee+2014; Kochanek+2017)) 20230515.3262 14.161g (ASAS-SN survey (Shappee+2014; Kochanek+2017)) 20230515.3274 14.166g (ASAS-SN survey (Shappee+2014; Kochanek+2017)) 20230515.3287 14.186g (ASAS-SN survey (Shappee+2014; Kochanek+2017)) 20230515.9732 14.266g (ASAS-SN survey (Shappee+2014; Kochanek+2017)) 20230515.9745 14.256g (ASAS-SN survey (Shappee+2014; Kochanek+2017)) 20230515.9757 14.302g (ASAS-SN survey (Shappee+2014; Kochanek+2017)) 20230516.3228 14.295g (ASAS-SN survey (Shappee+2014; Kochanek+2017)) 20230516.3240 14.314g (ASAS-SN survey (Shappee+2014; Kochanek+2017)) 20230516.3253 14.279g (ASAS-SN survey (Shappee+2014; Kochanek+2017)) Also at 14.0 on May 16 (Yuji Nakamura) from TOCP. ZTF caught at 16.55 on May 13 on the rise.

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[vsnet-alert 27758] EW Hya: indeed SU UMa star
by Taichi Kato 17 May '23

17 May '23

EW Hya: indeed SU UMa star Greg Bolt has reported observations. The object showed superhumps with a period of 0.081 d and an amplitude of 0.17 mag on May 15. Further observations are requested to refine the period.

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[vsnet-alert 27757] TCPJ17552445-4743255: possible WZ Sge? peak in April
by Taichi Kato 17 May '23

17 May '23

TCPJ17552445-4743255: possible WZ Sge? peak in April YYYYMMDD(UT) mag observer 20230417.9655 15.000o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230417.9673 15.023o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230417.9703 14.993o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230418.0018 14.996o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230419.1933 15.259c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230419.1961 15.278c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230419.1989 15.262c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230419.2041 15.241c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230419.4206 15.304c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230425.3746 16.372c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230425.3773 16.425c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230425.3835 16.437c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230425.3946 16.416c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230425.4011 16.257c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230425.4043 16.267c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230425.4075 16.295c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230425.4107 16.283c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230427.0213 16.808o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230427.0232 16.753o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230427.0588 16.738o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230427.0748 16.692o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230429.9252 17.376o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230429.9419 17.415o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230429.9447 17.479o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230429.9687 17.258o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230501.3293 16.975c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230501.3395 16.932c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230501.3427 16.890c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230501.3483 16.848c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230502.9250 17.521o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230502.9269 17.281o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230502.9303 17.415o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230502.9317 17.664o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230502.9342 17.674o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230502.9355 17.372o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230502.9394 17.651o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230502.9446 17.528o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230505.9385 17.735o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230505.9726 17.604o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230505.9907 17.620o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021))

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[vsnet-alert 27756] Spectrum of TCP J17583414-2652300
by Kenta TAGUCHI 17 May '23

17 May '23

Spectrum of TCP J17583414-2652300 We reported optical spectrum of TCP J17583414-2652300 to ATel #16038 and classify it as a reddened nova: https://www.astronomerstelegram.org/?read=16038 Best, Kenta -- ________________________________________________________________ 田口健太　(TAGUCHI, Kenta) 京都大学大学院理学研究科宇宙物理学教室 (Department of Astronomy, Graduate School of Science, Kyoto University) kentagch(a)kusastro.kyoto-u.ac.jp 09090536980

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[vsnet-alert 27755] Re: V548 Pav bright outburst
by Taichi Kato 17 May '23

17 May '23

Re: V548 Pav bright outburst YYYYMMDD(UT) mag observer 20230514.3410 <18.250g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230515.3204 14.083g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230515.599 142 (Rod Stubbings) 20230516.3314 14.067g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) Berto, the location is 211212.998 -663804.18 (2000.0) Gaia_DR2_6400875939749808256 plx=1.501(0.239) dismod=9.1 pmra=-3.542(0.282) pmdec=8.801(0.524) G=18.798 BP=19.090 RP=18.161 211212.998 -663804.17 (2000.0) Gaia_EDR3_6400875939749808256 plx=1.071(0.094) dismod=9.9 pmra=-2.708(0.100) pmdec=8.431(0.124) G=18.650 BP=18.891 RP=18.024 211213.038 -663803.63 (2000.0) GALEX_DR5_6383898878981180820 NUV=19.421(0.071) FUV=19.595(0.115)

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[vsnet-alert 27754] ZTF19actaznc outburst: dip or rebrightening
by Taichi Kato 16 May '23

16 May '23

ZTF19actaznc outburst: dip or rebrightening (Gaia detection) http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia23bud/ Gaia23bud AT2023imp 2023-05-01 16:13:38 321.84744 37.76632 18.22 20.15 0.65 unknown 2023-05-15 09:50:11 Outburst in candidate CV ZTF19actaznc YYYYMMDD(UT) mag observer 20230411.4472 16.997zr (ZTF Alert DC mag (Masci+ 2019)) 20230411.4710 16.967zg (ZTF Alert DC mag (Masci+ 2019)) 20230416.4556 17.248zr (ZTF Alert DC mag (Masci+ 2019)) 20230416.4860 17.285zg (ZTF Alert DC mag (Masci+ 2019)) 20230418.5994 17.349c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230418.6137 17.197c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230418.6215 17.213c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230422.6048 17.284c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230422.6109 17.356c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230422.6150 17.396c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230422.6263 17.360c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230423.5854 17.451c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230423.5886 17.405c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230423.5918 17.379c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230423.6038 17.271c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230425.5593 17.627c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230425.5625 17.607c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230425.5680 17.599c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230425.5703 17.544c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230425.5735 17.582c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230425.5763 17.624c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230425.5772 17.620c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230425.5823 17.644c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230501.4326 18.138zr (ZTF Alert DC mag (Masci+ 2019)) 20230501.4681 18.372zg (ZTF Alert DC mag (Masci+ 2019)) 20230502.6122 18.801o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230502.6194 18.768o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230502.6236 18.759o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230503.5890 18.863o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230503.5964 18.842o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230507.5655 18.673o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230507.5691 18.298o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230507.5792 18.580o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230507.5856 18.630o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230509.4347 18.401zg (ZTF Alert DC mag (Masci+ 2019)) 20230513.5545 18.102o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230513.5572 18.009o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230513.5599 17.931o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230513.5818 18.046o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230514.5960 18.259o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230514.6118 18.121o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230514.6160 18.121o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021))

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[vsnet-alert 27753] V548 Pav bright outburst
by Taichi Kato 16 May '23

16 May '23

V548 Pav bright outburst The 2022 Oct.-Nov. outburst with similar brightness was a long outburst. Possible SU UMa? YYYYMMDD(UT) mag observer 20230514.3410 <18.250g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230515.3204 14.083g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230515.599 142 (Rod Stubbings)

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[vsnet-alert 27752] ASASSN-22ak period
by Taichi Kato 15 May '23

15 May '23

ASASSN-22ak period Josch Hambsch has reported additional data with a higher cadence. Although the period is not directly apparent to the eyes, a period analysis using all the data appears to give a consistent period of 0.04128(4) d (amplitude 0.06 mag, slower rise and steeper fade). This period is the same as reported in 2022 Dec. (vsnet-alert 27243). The double period appears to be excluded by the rapid fading in 2022. The small amplitude may have been due to observations more than 10 d after the peak. I suspect that this object is an EI Psc star from this period. The outburst behavior is very unusual.

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