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

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

ZTF20abzcokk = AT 2020tgh = Gaia20elo (UGWZ:)
https://www.aavso.org/vsx/index.php?view=detail.top&oid=1547565

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-83c9-9c12eb630765

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,
Patrick

AAVSO 49 Bay State Rd. Cambridge, MA 02138 aavso@aavso.org 617-354-0484