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[vsnet-chat 8839] Gaia16amo: polar
by Taichi Kato 10 Sep '21

10 Sep '21

Gaia16amo: polar See vsnet-chat 8682. Low and high states in ZTF data. Porb = 0.0721608(2) d. Single maximum per orbital cycle.

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[vsnet-chat 8838] ATO J339.5837+53.8656: R
by Taichi Kato 10 Sep '21

10 Sep '21

ATO J339.5837+53.8656: R From ZTF data. Sinusoidal variation. 2MASS 223820.089 +535156.52 (2000.0) 16.638 15.960 16.082 223820.1 +535156 (2000.0) ATOJ339.5837+53.8656 SINE c=16.679 o=16.725 P(LS)=0.221251 rms=0.16 223820.1 +535156 (2000.0) Gaia_DR2_2003045070375592448 group_C2 g=16.646(0.133) Mowlavi2020 223820.1 +535156 (2000.0) PS1RRJ223820.12+535156.4 RR g=15.08(1.32) P=0.61620 0.54/0.03 223820.1 +535156 (2000.0) ZTFJ223820.10+535156.3 r=16.773 (16.514-16.974) P=0.2212 223820.1 +535156 (2000.0) ZTFJ223820.10+535156.3 susp g=16.669 r=16.800 amp=0.287 P=0.2211400 logfalse=-20.292 223820.1 +535156 (2000.0) Gaia_DR2_2003045070375592448 group_C2 g=16.646(0.133) Mowlavi2020 223820.108 +535156.21 (2000.0) Gaia_DR2_2003045070375592576 plx=0.552(0.061) dismod=11.3 pmra=-9.430(0.099) pmdec=-7.835(0.092) G=16.646 BP=16.649 RP=16.517 223820.107 +535156.21 (2000.0) Gaia_EDR3_2003045070375592576 plx=0.575(0.048) dismod=11.2 pmra=-9.282(0.052) pmdec=-7.832(0.046) G=16.611 BP=16.664 RP=16.509

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[vsnet-chat 8837] ATO J107.2477+52.0522: NL
by Taichi Kato 10 Sep '21

10 Sep '21

ATO J107.2477+52.0522: NL From ZTF data. Irregular variation. 2MASS 070859.451 +520308.06 (2000.0) 15.825 15.706 15.519 070859.4 +520308 (2000.0) ATOJ107.2477+52.0522 dubious c=16.323 o=16.342 P(LS)=2.02822 rms=0.11 070859.4 +520308 (2000.0) ZTFJ070859.45+520308.2 r=16.436 (16.264-16.677) P=0.0152 070859.450 +520308.08 (2000.0) Gaia_DR2_981271697809995264 plx=0.410(0.067) dismod=11.9 pmra=3.673(0.094) pmdec=-3.119(0.074) G=16.336 BP=16.411 RP=16.095 070859.450 +520308.08 (2000.0) Gaia_EDR3_981271697809995264 plx=0.419(0.047) dismod=11.9 pmra=3.771(0.036) pmdec=-2.942(0.028) G=16.302 BP=16.400 RP=16.069 070859.404 +520308.59 (2000.0) GALEX_DR5_6373660142951468849 NUV=16.810(0.020) FUV=17.051(0.032)

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[vsnet-chat 8836] ZTF J204638.16+514735.5: R
by Taichi Kato 10 Sep '21

10 Sep '21

ZTF J204638.16+514735.5: R From ZTF data. Sinusoidal, blue and faint (M_V= +5.0). 2MASS 204638.175 +514735.72 (2000.0) 15.255 15.293 15.849 204638.1 +514735 (2000.0) ATOJ311.6590+51.7931 CBH c=15.252 o=15.158 P(LS)=0.089714 rms=0.15 204638.1 +514735 (2000.0) Gaia_DR2_2182023160826160128 group_C2 g=15.234(0.121) Mowlavi2020 204638.1 +514735 (2000.0) ZTFJ204638.16+514735.5 RSCVN g=15.284 r=15.274 amp=0.350 P=0.0896426 204638.1 +514735 (2000.0) ZTFJ204638.16+514735.5 r=15.260 (15.001-15.567) P=0.0897 204638.1 +514735 (2000.0) Gaia_DR2_2182023160826160128 group_C2 g=15.234(0.121) Mowlavi2020 204638.173 +514735.48 (2000.0) Gaia_DR2_2182023160826160000 plx=0.948(0.031) dismod=10.1 pmra=3.139(0.062) pmdec=-7.766(0.055) G=15.234 BP=15.246 RP=15.097 204638.174 +514735.47 (2000.0) Gaia_EDR3_2182023160826160000 plx=0.931(0.024) dismod=10.2 pmra=3.212(0.028) pmdec=-7.800(0.027) G=15.229 BP=15.279 RP=15.102

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[vsnet-chat 8835] ZTF J194703.11+510444.6: R
by Taichi Kato 10 Sep '21

10 Sep '21

ZTF J194703.11+510444.6: R From ZTF data. Sinusoidal, blue and faint (M_V= +7.3). 194703.1 +510444 (2000.0) ATOJ296.7629+51.0790 SINE c=16.947 o=17.191 P(LS)=0.080996 rms=0.18 194703.1 +510444 (2000.0) ZTFJ194703.11+510444.6 RSCVN g=16.881 r=17.227 amp=0.361 P=0.0810253 194703.1 +510444 (2000.0) ZTFJ194703.11+510444.7 r=17.222 (16.951-17.487) P=0.0810 194703.108 +510444.68 (2000.0) Gaia_DR2_2135442243331252608 plx=1.059(0.078) dismod=9.9 pmra=-5.330(0.143) pmdec=-17.873(0.132) G=16.941 BP=16.748 RP=16.987 194703.107 +510444.67 (2000.0) Gaia_EDR3_2135442243331252608 plx=1.190(0.048) dismod=9.6 pmra=-5.095(0.057) pmdec=-17.898(0.053) G=16.925 BP=16.839 RP=16.989

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[vsnet-chat 8834] MGAB-V1215: NL
by Taichi Kato 10 Sep '21

10 Sep '21

MGAB-V1215: NL From ZTF data. Flickering in ZTF time-resolved data. 2MASS 222849.866 +501011.31 (2000.0) 16.037 15.945 15.493 222849.8 +501011 (2000.0) ATOJ337.2078+50.1698 dubious c=16.804 o=16.728 P(LS)=0.42829 rms=0.20 222849.8 +501011 (2000.0) Gaia_DR2_2000174314233682944 DR2_STS g=16.786(0.161) Mowlavi2020 222849.8 +501011 (2000.0) ZTFJ222849.88+501011.3 susp g=16.866 r=16.769 amp=0.290 P=0.7527900 logfalse=-6.472 222849.8 +501011 (2000.0) ZTFJ222849.89+501011.3 g=16.879 (16.485-17.356) P=0.7530 222849.8 +501011 (2000.0) Gaia_DR2_2000174314233682944 DR2_STS g=16.786(0.161) Mowlavi2020 222849.889 +501011.30 (2000.0) Gaia_DR2_2000174314233682816 plx=0.565(0.072) dismod=11.2 pmra=-4.486(0.122) pmdec=-8.634(0.110) G=16.786 BP=16.872 RP=16.505 222849.889 +501011.30 (2000.0) Gaia_EDR3_2000174314233682816 plx=0.565(0.049) dismod=11.2 pmra=-4.186(0.054) pmdec=-8.669(0.048) G=16.740 BP=16.840 RP=16.463

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[vsnet-chat 8833] ATO J301.7597+49.8319: Z Cam star
by Taichi Kato 10 Sep '21

10 Sep '21

ATO J301.7597+49.8319: Z Cam star From ZTF data. Dwarf nova state in 2019 (cycle about 15 d). Standstill since 2020. 2MASS 200702.298 +494954.87 (2000.0) 16.105 16.031 15.290 200702.3 +494955 (2000.0) ATOJ301.7597+49.8319 dubious c=16.204 o=16.156 P(LS)=0.29352 rms=0.15 200702.3 +494955 (2000.0) ZTFJ200702.33+494955.2 g=16.543 (16.174-16.755) P=0.9363 200702.333 +494955.15 (2000.0) Gaia_DR2_2087842980517605248 plx=0.594(0.063) dismod=11.1 pmra=0.419(0.117) pmdec=-6.315(0.113) G=16.605 BP=16.625 RP=16.468 200702.333 +494955.14 (2000.0) Gaia_EDR3_2087842980517605248 plx=0.562(0.042) dismod=11.3 pmra=0.520(0.048) pmdec=-6.447(0.047) G=16.583 BP=16.656 RP=16.413

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[vsnet-chat 8832] ZTF J183304.06+463705.2: R
by Taichi Kato 10 Sep '21

10 Sep '21

ZTF J183304.06+463705.2: R Almost purely sinusoidal (ZTF data), blue and faint (M_V = +6.4). The period has been confirmed. 183304.064 +463705.15 (2000.0) Gaia_DR2_2118607522015143936 plx=1.347(0.053) dismod=9.4 pmra=-7.238(0.112) pmdec=-14.468(0.123) G=15.753 BP=15.543 RP=15.912 183304.063 +463705.14 (2000.0) Gaia_EDR3_2118607522015143936 plx=1.433(0.030) dismod=9.2 pmra=-7.044(0.039) pmdec=-14.531(0.045) G=15.699 BP=15.572 RP=15.885

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[vsnet-chat 8831] ATO J297.1584+46.3857: NL
by Taichi Kato 10 Sep '21

10 Sep '21

ATO J297.1584+46.3857: NL Type from ZTF data. Also flickering in ZTF time-resolved data.

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[vsnet-chat 8830] ATO J152.5043+16.0448: Z Cam (IW And) star
by Taichi Kato 10 Sep '21

10 Sep '21

ATO J152.5043+16.0448: Z Cam (IW And) star Standstill in 2021 Mar., terminated by brightening (ZTF data). Only one event, but the star is likely an IW And star.

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