[vsnet-alert 25845] DO Dra outburst (since May 9)

[Patrick Schmeer pasc1312-aavso@yahoo.de via vsnet-alert]

 DO Draconis (UGSS+NLDQ)
https://www.aavso.org/vsx/index.php?view=detail.top&oid=13809
 
Outburst first reported by Maehara-san (see message below).

Recent ASAS-SN Sky Patrol light curve and data:
https://asas-sn.osu.edu/sky-patrol/coordinate/71ca9084-97a2-4274-8eed-b52903f9abcb
DRADO 20210428.334 15.27g ASN
DRADO 20210509.356 14.86g ASN

ZTF light curve, data, and images (via Lasair):
https://lasair.roe.ac.uk/object/ZTF17aaajihk/
 
AAVSO data:
https://app.aavso.org/webobs/results/?star=DO+Dra
 
Clear skies,
Patrick
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References:
All-Sky Automated Survey for Supernovae (ASAS-SN) Sky Patrol:
- Shappee et al., 2014ApJ...788...48S
- Kochanek et al., 2017PASP..129j4502K
Lasair:
- Smith et al., 2019RNAAS...3...26S
Zwicky Transient Facility (ZTF):
- Masci et al., 2019PASP..131a8003M
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Hiroyuki Maehara wrote (vsnet-alert 25844):

Visual magnitude estimates by VSOLJ members

object        YYYYMMDD(UT)  mag  code
DRADO          20210509.644  137  Mhh.VSOLJ  outburst

Observer: Hiroyuki Maehara (Okayama, Japan)
Instruments: 30cmL