March 2023 - vsnet-chat - ooruri.kusastro.kyoto-u.ac.jp

[vsnet-chat 9347] Gaia DR3 1132628402609289472: AM CVn star?
by Taichi Kato 25 Mar '23

25 Mar '23

Gaia DR3 1132628402609289472: AM CVn star? From ZTF data. Superoutbursts every ~170 d. Peak 17 mag.

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[vsnet-chat 9346] ASASSN-VJ090756.65+715859.5: IW And
by Taichi Kato 25 Mar '23

25 Mar '23

ASASSN-VJ090756.65+715859.5: IW And From ZTF data.

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[vsnet-chat 9345] NSVS6625418: bright Z Cam star
by Taichi Kato 25 Mar '23

25 Mar '23

NSVS6625418: bright Z Cam star From ZTF data. 13.4-16.6. https://www.aavso.org/vsx/index.php?view=detail.top&oid=227663

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[vsnet-chat 9344] ASASSN-15ib: neglected bright dwarf nova
by Taichi Kato 25 Mar '23

25 Mar '23

ASASSN-15ib: neglected bright dwarf nova This appears to be superoutburst + rebrightening. YYYYMMDD(UT) mag observer 20200820.2394 17.667c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200820.2427 17.532c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200820.2505 17.509c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200820.2637 17.464c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200822.2674 14.702o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200822.2706 14.716o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200822.2758 14.708o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200822.2859 14.729o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200824.2407 13.039o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200824.2439 13.044o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200824.2495 13.056o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200824.2614 13.046o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200828.2410 13.371o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200828.2447 13.363o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200828.2506 13.258o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200828.2610 13.191o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200903.2321 14.797o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200903.2353 14.747o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200903.2408 14.717o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200903.2524 14.824o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200905.2429 16.360o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200905.2466 16.276o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200905.2535 16.076o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200905.2655 16.138o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200907.2239 16.502o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200907.2257 16.524o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200907.2276 16.518o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200907.2295 16.351o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200907.2336 16.365o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200907.2364 16.535o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200907.2435 16.427o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200907.2490 16.670o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200909.2264 15.088c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200909.2296 15.104c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200909.2352 15.125c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200909.2467 15.157c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200911.2217 16.686o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200911.2250 16.841o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200911.2324 16.924o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200911.2425 16.752o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200913.2215 17.400c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200913.2247 17.474c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200913.2307 17.380c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200913.2408 17.229c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200915.2192 16.828o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200915.2224 16.896o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200915.2279 16.922o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20200915.2385 16.958o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505))

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[vsnet-chat 9343] V1773 Oph: IW And star
by Taichi Kato 25 Mar '23

25 Mar '23

V1773 Oph: IW And star Based on ATLAS and ZTF. Sometimes deep dips below mag 20.

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[vsnet-chat 9342] ASASSN-VJ121700.06-660358.5: IW And star?
by Taichi Kato 23 Mar '23

23 Mar '23

ASASSN-VJ121700.06-660358.5: IW And star? ATLAS forced photometry (Tonry et al. 2018; Shingles et al. 2021) data. IW And-like variation with deep fading (currently).

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[vsnet-chat 9341] ASASSN-VJ151959.64-354419.4: low amplitude SU UMa or Z Cam?
by Taichi Kato 23 Mar '23

23 Mar '23

ASASSN-VJ151959.64-354419.4: low amplitude SU UMa or Z Cam? ATLAS forced photometry (Tonry et al. 2018; Shingles et al. 2021) data. Relatively regular long outbursts but otherwise much irregularities. Deserves monitoring (bright at 14.5-15.0 at maximum).

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[vsnet-chat 9340] ASASSN-VJ212913.17+255933.8: IW And star
by Taichi Kato 23 Mar '23

23 Mar '23

ASASSN-VJ212913.17+255933.8: IW And star ATLAS forced photometry (Tonry et al. 2018; Shingles et al. 2021) data. Typical IW And-type standstills in 2017, 2019 and 2020.

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[vsnet-chat 9339] ASASSN-VJ164913.32-694853.0: IW And star
by Taichi Kato 22 Mar '23

22 Mar '23

ASASSN-VJ164913.32-694853.0: IW And star ATLAS forced photometry (Tonry et al. 2018; Shingles et al. 2021) data. 2022: typical IW And variation 2023: heartbeat state

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[vsnet-chat 9338] PGIR22akgylf peak magnitude
by Taichi Kato 21 Mar '23

21 Mar '23

PGIR22akgylf peak magnitude https://www.aavso.org/vsx/index.php?view=detail.top&oid=2344400 YYYYMMDD(UT) mag observer 20221228.3505 13.35V (Seiichiro Kiyota) 20221228.4609 13.20V (Masayuki Moriyama)

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vsnet-chat March 2023