August 2023 - vsnet-alert - ooruri.kusastro.kyoto-u.ac.jp

[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 02 Aug '23

02 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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[vsnet-alert 27928] TCP J16420534+8156125 ATLAS detection
by Taichi Kato 01 Aug '23

01 Aug '23

TCP J16420534+8156125 ATLAS detection YYYYMMDD(UT) mag observer 20230729.3508 18.834o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230729.3656 18.478o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230731.3159 12.996o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230731.3191 13.006o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230731.3291 13.031o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230731.3343 13.054o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230731.3598 12.995o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230731.3631 12.989o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230731.3685 12.973o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021))

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[vsnet-alert 27926] IPHAS J013840.58+580811.2: current and 2020 outbursts (likely super)
by Taichi Kato 01 Aug '23

01 Aug '23

IPHAS J013840.58+580811.2: current and 2020 outbursts (likely super) YYYYMMDD(UT) mag observer 20230627.5435 <18.340g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230630.5504 <18.320g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230725.5861 14.380c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230725.5883 14.344c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230725.5915 14.355c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230725.6032 14.406c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230727.5336 14.833c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230727.5368 14.884c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230727.5444 14.894c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230727.5584 14.883c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230729.5544 15.023o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230729.5576 14.952o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230729.5726 15.159o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 2020 (rapid fading suggests an SU UMa-type superoutburst) YYYYMMDD(UT) mag observer 20200719.5053 <18.365g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20200720.5508 <18.762g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20200720.5972 19.788o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20200722.6159 <18.143g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20200723.3783 <18.100g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20200723.5375 <18.528g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20200724.3806 <17.868g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20200728.3704 15.288g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20200728.4769 15.400g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20200728.5797 15.323o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20200728.5830 15.352o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20200728.5885 15.392o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20200728.6057 15.236o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20200729.3692 15.439g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20200730.3688 15.577g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20200730.4613 15.596g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20200730.6013 15.568c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20200730.6114 15.547c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20200730.6197 15.618c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20200730.6294 15.523c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20200731.3865 15.851g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20200731.4201 15.684g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20200801.3600 15.706g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20200801.5489 15.920g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20200801.5782 15.931o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20200801.5853 15.928o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20200801.5895 15.954o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20200801.6111 15.951o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20200802.3558 16.212g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20200803.5814 16.041o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20200803.5846 16.042o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20200803.5959 16.082o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20200805.3930 15.985g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20200806.4194 16.184g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20200807.5109 16.486o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20200807.5154 16.442o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20200807.5206 16.448o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20200807.5325 16.552o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20200808.3365 <17.180g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20200808.4547 <17.431g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20200809.3395 <17.177g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20200809.4959 <17.569g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20200809.5320 18.599o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20200809.5339 18.597o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20200809.5366 18.570o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20200809.5408 18.470o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20200809.5418 18.752o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20200811.2897 <17.890g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20200811.4742 <18.055g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20200813.4166 <18.324g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20200813.4658 <18.320g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20200813.5673 19.450o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20200813.5701 19.249o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20200813.5779 19.251o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20200817.4405 <18.406g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20200817.5466 19.282o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20200819.4397 <18.535g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014))

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[vsnet-alert 27925] Re: ZTF J191837.29+212722.1: FU Ori outburst?
by Taichi Kato 01 Aug '23

01 Aug '23

Re: ZTF J191837.29+212722.1: FU Ori outburst? Forgot to mention the TCP name (discovery of the outburst). TCP J19183710+2127170

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[vsnet-alert 27924] ZTF J191837.29+212722.1: FU Ori outburst?
by Taichi Kato 01 Aug '23

01 Aug '23

ZTF J191837.29+212722.1: FU Ori outburst? From ATLAS data. Not much variation until 2022. Recent brightening. 2MASS 191837.288 +212722.31 (2000.0) 13.810 12.942 12.628 191837.292 +212722.14 (2000.0) Gaia_DR2_4517076551873840384 plx=1.660(0.085) dismod=8.9 pmra=0.697(0.116) pmdec=-6.845(0.153) G=17.188 BP=18.800 RP=15.916 191837.292 +212722.13 (2000.0) Gaia_EDR3_4517076551873840384 plx=1.533(0.063) dismod=9.1 pmra=0.700(0.058) pmdec=-6.627(0.065) G=17.150 BP=18.664 RP=15.905 The object is too underluminous for a Mira/SR (thus not likely a symbiotic nova). FU Ori star? Somewhat close to a star-forming region. YYYYMMDD(UT) mag observer 20230521.5095 16.341o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230521.5127 16.382o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230521.5160 16.360o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230521.5240 16.298o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230523.5956 16.232o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230523.5997 16.211o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230523.6048 16.212o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230523.6107 16.169o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230523.6191 16.251o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230525.5757 16.357o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230525.5794 16.370o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230525.6000 16.370o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230525.6073 16.339o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230527.4842 16.299o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230527.4869 16.306o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230527.4934 16.297o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230527.4985 16.324o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230529.4600 16.191o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230529.4628 16.198o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230529.4685 16.201o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230529.4785 16.214o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230606.4791 16.017o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230606.4820 15.994o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230606.4857 15.978o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230606.4909 15.927o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230608.4794 16.005o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230608.4808 15.980o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230608.4839 15.954o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230608.5106 15.980o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230610.4609 15.966o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230610.4638 15.959o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230610.4692 15.989o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230610.4745 16.000o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230612.4449 16.822c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230612.4477 16.787c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230612.4693 16.832c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230612.4837 16.876c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230614.4493 17.049c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230614.4508 17.117c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230614.4540 17.179c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230614.4671 17.170c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230615.1830 16.840c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230615.1972 17.093c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230615.2009 16.956c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230615.2058 16.907c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230616.4438 17.053c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230616.4452 17.019c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230616.4589 17.062c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230616.4649 17.028c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230618.4436 16.961c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230618.4450 16.992c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230618.4497 17.046c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230618.4655 16.973c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230620.4350 16.609c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230620.4359 16.483c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230620.4373 16.551c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230620.4377 16.543c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230620.4418 16.583c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230620.4429 16.590c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230620.4468 16.647c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230620.4517 16.769c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230622.4667 16.049c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230622.4681 16.053c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230622.4709 16.021c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230622.4759 15.962c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230628.4347 14.391o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230628.4385 14.363o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230628.4446 14.366o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230628.4527 14.385o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230630.4306 14.433o (ATLAS Forced Photometry (Tonry+2018; 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1 0

[vsnet-alert 27923] IPHAS J013840.58+580811.2 = TCP J01384061+5808110: outburst of possible SU UMa star?
by Taichi Kato 01 Aug '23

01 Aug '23

IPHAS J013840.58+580811.2 = TCP J01384061+5808110: outburst of possible SU UMa star? The 2020 July-Aug. outburst resembles a super (ASAS-SN ver2). The current outburst is similar in brightness.

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[vsnet-alert 27922] MisV1448 outburst confirmed
by Taichi Kato 31 Jul '23

31 Jul '23

MisV1448 outburst confirmed Itoh-san confirmed the outburst. An 1-hour run showed a flat light curve.

1 0