August 2021 - vsnet-outburst - ooruri.kusastro.kyoto-u.ac.jp

[vsnet-outburst 27630] Activity (2021-08-29)
by Hiroyuki Maehara 29 Aug '21

29 Aug '21

Visual magnitude estimates by VSOLJ members object YYYYMMDD(UT) mag code CRTSJ214738.4+244554 20210829.610 131 Mhh.VSOLJ HERAH 20210829.543 128 Mhh.VSOLJ LYRV344 20210829.562 149 Mhh.VSOLJ PEGV537 20210829.611 131 Mhh.VSOLJ TCPJ20100517+1303006 20210829.591 143 Mhh.VSOLJ Observer: Hiroyuki Maehara (Okayama, Japan) Instruments: 30cmL

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[vsnet-outburst 27629] Nagasaki All Sky CV Patrol (Aug.28)
by 前田豊 29 Aug '21

29 Aug '21

Nagasaki All Sky CV Patrol detect active & outburst object YYYYMMDD(UT) mag code ANDLX 20210828.77655 130cG Mdy.VSOLJ outburst ASASSN-16le 20210828.54210 152cG Mdy.VSOLJ outburst CASAM 20210828.78755 133cG Mdy.VSOLJ outburst CASDK 20210828.58916 158c Mdy.VSOLJ outburst CASV513 20210828.59101 154:cG Mdy.VSOLJ outburst CETWW 20210828.56578 136cG Mdy.VSOLJ active CYGEM 20210828.62080 127cG Mdy.VSOLJ active CYGV792 20210828.61532 147cG Mdy.VSOLJ active DRAIX 20210828.53315 151:cG Mdy.VSOLJ outburst HERNY 20210828.48422 156:cG Mdy.VSOLJ outburst LYRV587 20210828.61175 <162c Mdy.VSOLJ active MASTER_OT_J041923.57+653004.3 20210828.83346 151:cG Mdy.VSOLJ outburst MASTER_OT_J230325.66+564914.5 20210828.54056 158:cG Mdy.VSOLJ outburst NSV14581 20210828.53713 147cG Mdy.VSOLJ active OT_J231110.9+013003 20210828.55986 143cG Mdy.VSOLJ active PEGHX 20210828.55781 131cG Mdy.VSOLJ active PEGV537 20210828.71999 130cG Mdy.VSOLJ active PERFO 20210828.83259 134cG Mdy.VSOLJ outburst PERNS 20210828.83208 154:cG Mdy.VSOLJ outburst PERTZ 20210828.78512 125cG Mdy.VSOLJ active PERV1024 20210828.82918 121cG Mdy.VSOLJ outburst PSCGV 20210828.74880 146:c Mdy.VSOLJ active TRITX 20210828.74725 135cG Mdy.VSOLJ active VULV405 20210828.62579 149:cG Mdy.VSOLJ active Observer: MAEDA Yutaka (Nagasaki, Japan) Instruments: 25cmRC+0.75reducer+DSLR(canon eoskissX3) exposure:30s telescope & camera control:STELLASHOT2 detect & photometry:UGEM3

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[vsnet-outburst 27628] Activity (2021-08-28)
by Hiroyuki Maehara 28 Aug '21

28 Aug '21

Visual magnitude estimates by VSOLJ members object YYYYMMDD(UT) mag code ANDRX 20210828.737 133 Mhh.VSOLJ CASAM 20210828.728 133 Mhh.VSOLJ CRTSJ214738.4+244554 20210828.690 130 Mhh.VSOLJ CYGSS 20210828.675 112 Mhh.VSOLJ GEMU 20210828.778 96 Mhh.VSOLJ PEGHX 20210828.712 132 Mhh.VSOLJ TCPJ20100517+1303006 20210828.650 142 Mhh.VSOLJ Observer: Hiroyuki Maehara (Okayama, Japan) Instruments: 30cmL

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[vsnet-outburst 27627] PNV J05393469+5715159 = ZTF21abuzuih: Possible WZ Sge-type object
by Naoto Kojiguchi 28 Aug '21

28 Aug '21

PNV J05393469+5715159 = ZTF21abuzuih: Possible WZ Sge-type object Large outburst amplitude of 8 mag. The fading rate is 0.15 mag/d. Possible WZ Sge-type object. PNV J05393469+5715159 2021 08 27.8730* 05 39 34.69 +57 15 15.9 13.57C Cam R - 2021 08 27.8730 Guoyou Sun (Xingming Observatory), Quanzhi Ye (Department of Astronomy, University of Maryland), Xing Gao (Xingming Observatory), report the discovery of a possible nova (13.57 C) which is 21.923 gmag in Pan-STARRS DR1 catalogue (PS1 objID 176700848943505888). The transient was discovered on several 60-s survey images (limiting mag about 19.0) taken Xing Gao by at Xingming Observatory-KATS, Nanshan (N86) around Aug. 27.87299, 2021 UT using a unfiltered CCD (0.28-m f/2.2 reflector). Images can be found at: http://xjltp.china-vo.org/XMK001.html TOCP: http://www.cbat.eps.harvard.edu/unconf/followups/J05393469+5715159.html Lasair: https://lasair.roe.ac.uk/object/ZTF21abuzuih/ ASASSN: https://asas-sn.osu.edu/sky-patrol/coordinate/d10ec2be-b6d8-4a54-b2da-67712… IDs: 053934.647 +571515.678 PS1_176700848943505888 g=21.9230(0.1727) r=21.6724(0.0988) i=-(-) z=-(-) y=-(-) 20210819.590 <17.788g ASN 20210822.589 19.422o ATF 20210824.444 13.912zg ZLR 20210825.585 13.973g ASN 20210827.447 14.363zg ZLR 20210827.487 14.386zr ZLR 20210827.581 14.436g ASN 20210827.873 13.57C (Xingming Observatory-KATS)

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[vsnet-outburst 27626] Recent activity
by Rod Stubbings 28 Aug '21

28 Aug '21

Recent activity observed the past few nights. object YYMMDD(UT) mag code remarks AQLFO 210822.431 137 Stu.RASNZ outburst AQLFO 210828.426 155 Stu.RASNZ active CAPSY 210819.486 134 Stu.RASNZ outburst CAROQ 210828.394 140 Stu.RASNZ outburst CAROY 210828.394 156 Stu.RASNZ CENMU 210819.385 148 Stu.RASNZ CENMU 210822.410 129 Stu.RASNZ outburst CENMU 210828.376 131 Stu.RASNZ active CENV342 210828.376 147 Stu.RASNZ outburst CENV803 210819.463 138 Stu.RASNZ outburst CENV803 210822.394 135 Stu.RASNZ active CENV803 210828.390 138 Stu.RASNZ active CENV1040 210828.400 146 Stu.RASNZ CHAZ 210819.474 128 Stu.RASNZ active CHAZ 210822.392 134 Stu.RASNZ active CHAZ 210828.402 154 Stu.RASNZ active CHAST 210819.475 143 Stu.RASNZ active CHAST 210822.393 143 Stu.RASNZ active CHAST 210828.403 143 Stu.RASNZ active HYAEX 210828.380 135 Stu.RASNZ HYIWX 210822.530 130 Stu.RASNZ outburst HYIVW 210819.476 92 Stu.RASNZ active HYIVW 210822.429 94 Stu.RASNZ active HYIVW 210828.410 126 Stu.RASNZ active NORHP 210822.533 144 Stu.RASNZ outburst PAVGS 210828.370 150 Stu.RASNZ outburst SCOFQ 210822.532 135 Stu.RASNZ outburst SGRV730 210822.383 138 Stu.RASNZ outburst TRADV 210819.499 139 Stu.RASNZ outburst TUCVW 210828.414 160 Stu.RASNZ outburst ASASSN-14dw 210819.464 143 Stu.RASNZ outburst MGAB-V299 210822.428 144 Stu.RASNZ active MASTER OT J142023.47-485540.0 210822.418 129 Stu.RASNZ outburst -- Rod Stubbings Tetoora Road Observatory Victoria, Australia Telescope: "Infinity" 22" f/3.8 stubbo(a)dcsi.net.au http://rodstubbingsobservatory.wordpress.com/

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[vsnet-outburst 27625] U Gem outburst
by Hiroyuki Maehara 28 Aug '21

28 Aug '21

According to Hirosawa-san, U Gem is in outburst. Variable Star Observations by VSOLJ members object YYYYMMDD(UT) mag code GEMU 20210827.81238 10.39cG Hsk.VSOLJ Observer: Kenji Hirosawa (Aichi, Japan) Instruments: 20cmL + CANON EOS Kiss X9

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[vsnet-outburst 27624] Nagasaki All Sky CV Patrol (Aug.27)
by 前田豊 28 Aug '21

28 Aug '21

Nagasaki All Sky CV Patrol detect active & outburst object YYYYMMDD(UT) mag code CRTSJ021110.2+171624 20210827.71389 147:c Mdy.VSOLJ outburst CRTSJ161909.1+135145 20210827.50714 160:c Mdy.VSOLJ outburst CRTSJ231142.8+204036 20210827.81294 152:c Mdy.VSOLJ outburst CYGEM 20210827.61472 125cG Mdy.VSOLJ outburst CYGV792 20210827.60924 144cG Mdy.VSOLJ outburst HERAH 20210827.51226 122cG Mdy.VSOLJ active HERV544 20210827.50304 151:c Mdy.VSOLJ outburst LACNQ 20210827.79215 150:c Mdy.VSOLJ outburst LYRV587 20210827.60564 158:c Mdy.VSOLJ outburst NSV14581 20210827.79374 144cG Mdy.VSOLJ active OT_J231110.9+013003 20210827.81688 142cG Mdy.VSOLJ outburst PEGHX 20210827.81483 132cG Mdy.VSOLJ active PEGIP 20210827.81346 149:c Mdy.VSOLJ active PEGV521 20210827.77854 <140c Mdy.VSOLJ outburst PSCGV 20210827.69679 144cG Mdy.VSOLJ outburst TRITX 20210827.69523 134cG Mdy.VSOLJ outburst VULV405 20210827.61971 146cG Mdy.VSOLJ outburst Observer: MAEDA Yutaka (Nagasaki, Japan) Instruments: 25cmRC+0.75reducer+DSLR(canon eoskissX3) exposure:30s telescope & camera control:STELLASHOT2 detect & photometry:UGEM3

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[vsnet-outburst 27623]Activity (2021-08-27)
by Hiroyuki Maehara 27 Aug '21

27 Aug '21

Visual magnitude estimates by VSOLJ members object YYYYMMDD(UT) mag code ANDRX 20210827.732 134 Mhh.VSOLJ CRTSJ214738.4+244554 20210827.701 129 Mhh.VSOLJ outburst CYGSS 20210827.683 110 Mhh.VSOLJ PEGHX 20210827.714 133 Mhh.VSOLJ TCPJ20100517+1303006 20210827.651 141 Mhh.VSOLJ Observer: Hiroyuki Maehara (Okayama, Japan) Instruments: 30cmL

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[vsnet-outburst 27622]Gaia17bcx outburst
by Taichi Kato 27 Aug '21

27 Aug '21

Gaia17bcx outburst Relatively regular outbursts in the past ZTF data. Type not conclusive. YYYYMMDD(UT) mag observer 20210813.2639 20.441zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210820.2879 16.736zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210823.1819 16.064zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210823.2180 15.588zg (Zwicky Transient Facility Lasair (Masci+ 2019))

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[vsnet-outburst 27621]CRTS J064804.5+414702 superoutburst
by Taichi Kato 27 Aug '21

27 Aug '21

CRTS J064804.5+414702 superoutburst YYYYMMDD(UT) mag observer 20210812.4971 18.805zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210812.5044 18.889zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210817.4860 16.310zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210817.4886 16.314zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210817.4911 16.353zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210817.4936 16.341zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210817.4962 16.331zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210817.4976 16.347zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210817.5000 16.321zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210817.5024 16.307zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210817.5048 16.263zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210817.5072 16.215zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210818.4863 16.495zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210818.4887 16.476zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210818.4912 16.449zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210818.4936 16.450zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210818.4960 16.401zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210818.4980 16.387zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210818.5003 16.364zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210818.5027 16.342zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210818.5051 16.330zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20210818.5075 16.346zr (Zwicky Transient Facility Lasair (Masci+ 2019)) Also Gaia detection: http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia21dyz/

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vsnet-outburst August 2021