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Details for Revision 3
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Name
  ASASSN-19oa  
AAVSO UID
000-BNC-986 (137 observations)  
Constellation
Crux Sequence
J2000.0
12 37 51.81 -62 54 28.6  (189.46588 -62.90794) Search nearby
B1950.0 12 34 57.54 -62 37 59.0
Galactic coord. 301.387 -0.077
Other names

(Internal only)
AT 2019gvk Gaia19cfa  
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Variability type
UG
Spectral type --
Mag. range
15.6 - <22 g
Discoverer ASAS-SN
Epoch
--
Outburst --
Period --
Rise/eclipse dur. --
Remarks
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1 Schmeer, Patrick Low-resolution spectrum obtained on 2019 June 3.96 UT shows a blue continuum with Balmer absorption lines and weak Halpha in emission, weak He I emission lines at 4438 and 7065 A are also detected; the overall spectrum is characteristic of a dwarf nova outburst (ATel #12842).
2 Schmeer, Patrick Outburst photometry on 2019 June 4.4268 UT: B= 16.75, V= 16.30, Rc= 16.17, Ic= 16.68 (S. Kiyota, personal communication). Prior to the brightening on 2019 June 2, no outbursts were recorded by the ASAS-SN Sky Patrol since 2016 February 5.
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References
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1 E. Aydi; T. W.-S. Holoien; K. Decker French; et al., 2019, ATel #12842 2019ATel12842....1A
2 Gaia Alerts, 2019 (online data) --
3 Transient Name Server, 2019 (online data) --
4 Kochanek, C. S.; et al., 2017, The All-Sky Automated Survey for Supernovae
(ASAS-SN) Light Curve Server v1.0		 2017PASP..129j4502K
5 ASAS-SN Transients (Shappee et al., 2014) 2014ApJ...788...48S
External Links
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Supporting Documents
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Revision History
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4 Schmeer, Patrick 2019-06-10 18:38 UTC Position from Gaia Alerts.
3 Schmeer, Patrick 2019-06-05 23:22 UTC Remark and reference added.
2 Schmeer, Patrick 2019-06-04 13:05 UTC Position and type from S. Kiyota (personal communication).
1 Otero, Sebastian Alberto 2019-06-04 03:27 UTC Initial submission.

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