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

[vsnet-newvar 9789] CX137 = CXO GBSJ175553.2-281633 = OGLE BLG-ELL-12042 outburst
by Taichi Kato 17 Feb '23

17 Feb '23

CX137 = CXO GBSJ175553.2-281633 = OGLE BLG-ELL-12042 outburst Yamamoto-san detected an outburst, which can be identified with the above source (identified by Yamamoto-san; crowded fielded and still waiting for accurate astrometry). This object has a CV spectrum with ELL variation. Likely an outburst from a long-Porb, low mass-transfer CV. YYYYMMDD(UT) mag observer 20221018.0161 16.052g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221018.0174 16.155g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221018.0186 16.760c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221018.0186 15.968g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221018.0218 16.741c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221018.0272 16.734c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221018.0372 16.765c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221020.0186 16.040g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221020.0199 15.903g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221020.0212 15.908g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221021.0128 15.862g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221021.0141 15.938g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221021.0153 <16.106g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221021.0377 16.792c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221021.0409 16.820c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221021.0468 16.768c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221021.0573 16.778c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221022.0122 15.867g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221022.0134 16.057g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221022.0146 15.908g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221023.0191 16.105g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221023.0203 16.137g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221023.0216 15.889g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221023.7673 16.035o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221023.7877 15.912o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221025.7776 <15.434g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221025.7788 <15.575g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221025.7800 <15.748g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221026.0056 16.517c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221026.0088 16.494c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221026.0142 16.608c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221026.0255 16.516c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221026.0367 15.821g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221026.0380 15.883g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221026.0393 <16.159g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221026.7961 16.371o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221026.7993 16.387o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221026.8072 16.468o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221026.8173 16.499o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221027.7476 <15.552g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221027.7488 <15.604g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221027.7501 <15.734g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20221031.7564 16.280o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221031.7601 16.176o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221031.7657 16.213o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221031.7758 15.736o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221106.0088 16.644o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221106.0179 16.836o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221106.0283 16.626o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221108.7632 15.572o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221111.0100 15.853o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221111.0150 16.018o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20221111.0245 15.974o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230204.3841 <15.478g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230204.3854 <15.678g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230205.3822 <15.174g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230205.3835 <15.340g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230206.3789 <15.374g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230206.3802 <15.469g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230206.3816 15.569g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230207.3745 15.477g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230207.3758 <15.692g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230207.3771 <15.589g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230209.3731 <15.670g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230209.3744 <15.633g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230209.3757 <15.738g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230210.3835 15.388g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230210.3847 <15.552g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230210.3860 <15.538g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230212.3423 14.911o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230212.3455 14.821o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230212.3586 14.807o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230212.3666 14.705g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230212.3679 14.665g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230212.3691 14.862g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20230216.837 130c (Minoru Yamamoto)

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[vsnet-newvar 9788] SSS J090619.2-275831: ER UMa star
by Taichi Kato 16 Feb '23

16 Feb '23

SSS J090619.2-275831: ER UMa star Using ATLAS forced photometry (Tonry et al. 2018; Shingles et al. 2021). Almost certainly ER UMa star, regular supercycle of 50-55 d. Maximum 16.0 mag.

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[vsnet-newvar 9787] SDSSp J083845.23+491055.5 stopped outbursting
by Taichi Kato 16 Feb '23

16 Feb '23

SDSSp J083845.23+491055.5 stopped outbursting No outburst has been recorded since 2014 (ZTF data since 2018). Relatively regular outbursts up to 2013.

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[vsnet-newvar 9786] SDSS J231226.62+544804.4: IW And star
by Taichi Kato 16 Feb '23

16 Feb '23

SDSS J231226.62+544804.4: IW And star Very clear in ZTF data. Deep minimum reached g=18.5.

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[vsnet-newvar 9785] MASTER OT J051415.56+671120.3 rare outburst
by Taichi Kato 16 Feb '23

16 Feb '23

MASTER OT J051415.56+671120.3 rare outburst Known SU UMa star, but not well observed in the past. YYYYMMDD(UT) mag observer 20230130.5810 <164c (Yutaka Maeda) 20230202.5808 <155c (Yutaka Maeda) 20230204.572 <174C (Mitsutaka Hiraga) 20230205.5890 <155c (Yutaka Maeda) 20230207.567 <175C (Mitsutaka Hiraga) 20230208.5565 <143c (Yutaka Maeda) 20230210.5810 <161c (Yutaka Maeda) 20230214.5718 145c (Yutaka Maeda)

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[vsnet-newvar 9784] MASTER OT J034045.31+471632.2 likely superoutburst
by Taichi Kato 16 Feb '23

16 Feb '23

MASTER OT J034045.31+471632.2 likely superoutburst Known SU UMa star. YYYYMMDD(UT) mag observer 20230202.5421 <161c (Yutaka Maeda) 20230204.5175 <158c (Yutaka Maeda) 20230205.4875 <160c (Yutaka Maeda) 20230207.4999 <156c (Yutaka Maeda) 20230208.5181 <142c (Yutaka Maeda) 20230210.5418 <158c (Yutaka Maeda) 20230214.5328 152c (Yutaka Maeda) 20230214.5328 152c (Yutaka Maeda)

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[vsnet-newvar 9783] CRTS J174033.4+414756 bright superoutburst continues
by Taichi Kato 16 Feb '23

16 Feb '23

CRTS J174033.4+414756 bright superoutburst continues YYYYMMDD(UT) mag observer 20230128.5155 19.929zr (ZTF Alert DC mag (Masci+ 2019)) 20230130.8567 <159c (Yutaka Maeda) 20230204.8568 123cG (Yutaka Maeda) 20230204.8568 123cG (Yutaka Maeda) 20230207.149 13.15CV (Klaus Wenzel) 20230207.160 131 (Klaus Wenzel) 20230209.137 132CV (Klaus Wenzel) 20230213.201 136CV (Klaus Wenzel) 20230214.8331 134cG (Yutaka Maeda)

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[vsnet-newvar 9782] CRTS J164950.4+035835 superoutburst
by Taichi Kato 16 Feb '23

16 Feb '23

CRTS J164950.4+035835 superoutburst Known SU UMa star. YYYYMMDD(UT) mag observer 20230130.8296 <154c (Yutaka Maeda) 20230204.8293 <150c (Yutaka Maeda) 20230214.8059 137cG (Yutaka Maeda) 20230214.8059 137cG (Yutaka Maeda)

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[vsnet-newvar 9781] CRTS J103317.3+072119 superhump period
by Taichi Kato 15 Feb '23

15 Feb '23

CRTS J103317.3+072119 superhump period Josch Hambsch has reported second-night observations. The superhump period is 0.07269(6) d (amplitude 0.23 mag).

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[vsnet-newvar 9780] ASASSN-23af: oscillation-type rebrightening
by Taichi Kato 15 Feb '23

15 Feb '23

ASASSN-23af: oscillation-type rebrightening Josch Hambsch has reported further data. It has become apparent that this object is showing oscillation-type rebrightenings (as in WZ Sge).

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