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

[vsnet-alert 26324] Re: PNV J00444033+4113068: updated period of early superhumps
by Taichi Kato 15 Oct '21

15 Oct '21

Re: PNV J00444033+4113068: updated period of early superhumps > Tamas Tordai and Tonny Vanmunster have reported new > observations. Sano-san also reported observations. The result is unchanged.

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[vsnet-alert 26325] TCP J01535830+5937545: likely superoutburst of an SU UMa star
by Taichi Kato 15 Oct '21

15 Oct '21

TCP J01535830+5937545: likely superoutburst of an SU UMa star Type from ZTF data. Apparent superoutburst in 2019 Nov. YYYYMMDD(UT) mag observer 20211010.6888 170:C (Masayuki Moriyama) 20211011.8173 163:C (Masayuki Moriyama)

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[vsnet-alert 26323] PNV J00444033+4113068: updated period of early superhumps
by Taichi Kato 15 Oct '21

15 Oct '21

PNV J00444033+4113068: updated period of early superhumps Tamas Tordai and Tonny Vanmunster have reported new observations. The best period using these observations is 0.05543(2) d. The double wave profile is very apparent. The deeper minima appear to be partially caused by eclipses. These eclipses will become more apparent when ordinary superhumps appear.

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[vsnet-alert 26322] ASASSN-21sz: new SU UMa-type dwarf nova
by Taichi Kato 15 Oct '21

15 Oct '21

ASASSN-21sz: new SU UMa-type dwarf nova Josch Hambsch has reported observations. The data showed 0.20 mag superhumps with a period of 0.065(2) d.

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[vsnet-alert 26321] MGAB-V233 superoutburst
by Taichi Kato 13 Oct '21

13 Oct '21

MGAB-V233 superoutburst SU UMa star with a short supercycle. YYYYMMDD(UT) mag observer 20210819.7185 164C (Masayuki Moriyama) 20210928.6116 152C (Masayuki Moriyama) 20211001.7142 153C (Masayuki Moriyama) 20211007.6637 154C (Masayuki Moriyama) 20211010.6187 153C (Masayuki Moriyama)

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[vsnet-alert 26320] CRTS J014709.7+171520 superoutburst
by Taichi Kato 13 Oct '21

13 Oct '21

CRTS J014709.7+171520 superoutburst YYYYMMDD(UT) mag observer 20211003.7630 <161c (Yutaka Maeda) 20211004.7184 <163c (Yutaka Maeda) 20211005.7076 <167c (Yutaka Maeda) 20211006.7022 <164c (Yutaka Maeda) 20211007.7002 149cG (Yutaka Maeda) 20211008.842 15.24C (Gary Poyner) 20211008.8440 14.77C (Masao Funada) 20211009.3620 15.096zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211009.8576 15.31C (Masao Funada) 20211010.6022 150cG (Yutaka Maeda) 20211011.3231 15.397zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211011.5900 <140c (Yutaka Maeda)

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[vsnet-alert 26319] PNV J00444033+4113068: new WZ Sge-type dwarf nova
by Taichi Kato 13 Oct '21

13 Oct '21

PNV J00444033+4113068: new WZ Sge-type dwarf nova Tamas Tordai has reported observations. The object showed large-amplitude (0.7 mag!) early superhumps with a period of 0.0553(4) d. This object must have a high inclination and further observations are very encouraged.

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[vsnet-alert 26318] PNV J00444033+4113068 = AT 2021aaxp: galaxtic dwarf nova in the field of M31
by FIDRICH Róbert 12 Oct '21

12 Oct '21

Dear Friends, PNV J00444033+4113068 = AT 2021aaxp: galaxtic dwarf nova in the field of M31 discovered by K. Itagaki. at 16.5 mag (unfiltered) on 2021-10-09.4579. He further reported that it was brightening: 15.7 mag on 2021-10-09.584, and 15.3 mag on 2021-10-09.806 Also, Dave Balam et al. discovered it identically at 17.77 mag (G-Gaia) on 2021-10-09.6125. There is a possible counterpart of g = 22.32 in the PS1 Mean object catalog. More info: http://www.cbat.eps.harvard.edu/unconf/followups/J00444033+4113068.html https://www.wis-tns.org/object/2021aaxp https://www.astronomerstelegram.org/?read=14962 Prediscovery detection by A. Horti-David et al. (Konkoly Obs.): https://www.astronomerstelegram.org/?read=14963 Clear skies, Robert Fidrich HAA/VSS

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[vsnet-alert 26317] ASASSN-21sz
by Taichi Kato 12 Oct '21

12 Oct '21

ASASSN-21sz ASASSN-21sz --- ------- 21:48:30.31 -35:38:49.3 2021-10-7.14 13.56 SDSS DSS VIZIER ------- CV candidate, matches to GAIA DR2 G=18.6, g>17.8 on 2021-10-05.08, g=14.0 on 2021-10-06.11, g=14.1 on 2021-10-07.17, g=14.6 on 2021-10-10.05 ASASSN-21sz 20211005.08 <178g ASN ASASSN-21sz 20211007.17 141g ASN ASASSN-21sz 20211010.05 146g ASN 214830.443 -353848.98 (2000.0) Gaia_DR2_6587981306620492672 plx=2.019(0.320) dismod=8.5 pmra=29.370(0.384) pmdec=-19.011(0.399) G=18.596 BP=18.625 RP=18.304 214830.444 -353848.99 (2000.0) Gaia_EDR3_6587981306620492672 plx=1.926(0.170) dismod=8.6 pmra=29.685(0.155) pmdec=-18.968(0.107) G=18.618 BP=18.722 RP=18.449 214831.2 -353851 (2000.0) 1RXS_J214831.3-353852 0.055 0.39 0.62

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[vsnet-alert 26314] LL And rapid fading
by Taichi Kato 11 Oct '21

11 Oct '21

LL And rapid fading Itoh-san's most recent observation on Sep. 10 indicated that the object faded to 17th mag. Please keep an eye on this object to look for possible rebrightening(s).

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