ZTF20abzcokk: likely a large-amplitude superoutburst (mag. 15.2, in Andromeda)

Association Francaise des Observateurs d'Etoiles Variables (AFOEV)
Thu, 09/24/2020 - 12:01

ZTF20abzcokk = AT 2020tgh = Gaia20elo (UGWZ:)

Zwicky Transient Facility (ZTF) light curve: https://lasair.roe.ac.uk/object/ZTF20abzcokk/

Complete ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48Sand Kochanek et al. 2017PASP..129j4502K) light curve and data: https://asas-sn.osu.edu/light_curves/d94e650f-70b1-429c-83c9-9c12eb6307…

Gaia (Photometric) Science Alerts data: http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia20elo/

Transient Name Server: https://wis-tns.weizmann.ac.il/object/2020tgh

This likely superoutburst started on 2020 September 14 (max. brightness mag. 15.2 g, amplitude 7 magnitudes). *** Time-resolved photometry is urgently required. ***

Clear skies,

American Association of Variable Star Observers (AAVSO)
ZTF20abzcokk Sequence


ZTF20abzcokk now has a sequence: ~14.5V-19.5V

Ad Astra & Good Observing

Tim Crawford, Sequence Team