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Name
  ASASSN-15oc  
AAVSO UID
--  
Constellation
Sagittarius Sequence
J2000.0
18 33 53.34 -20 56 21.5  (278.47225 -20.93931) Search nearby
B1950.0 18 30 54.25 -20 58 43.1
Proper motion
RA: 6.9 +/- 3.5 mas/yDec: 7.5 +/- 6.8 mas/ySource: UCAC4
Galactic coord. 12.299 -5.703
Other names

(Internal only)
2MASS J18335331-2056214 ASASSN-V J183353.44-205621.1 ATO J278.4722-20.9393
CMC15 J183353.3-205621 DENIS J183353.3-205621 EPIC 226265139
GSC2.3 SA7T030341 SMSS J183353.32-205621.4 UCAC2 23716712
UCAC4 346-151045 USNO-A2.0 0675-27172050 USNO-B1.0 0690-0685603
WISE J183353.27-205621.5 WISEA J183353.25-205622.1 ZTF18abgnggf
[SHM2017] J278.47223-20.93930    
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Variability type
RRAB
Spectral type --
Mag. range
14.66: - 15.64 V
Discoverer ASAS-SN
Epoch
12 Sep 2014 (HJD 2456913.1821) Ephemeris
Outburst --
Period 0.448506 d  (10.7641 h)
Rise/eclipse dur. --
Remarks
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1 Schmeer, Patrick Gaia DR2 parallax 0.289 ± 0.038 mas (distance 3.2 ± 0.4 kpc).
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References
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1 T. Kato, 2020, vsnet-chat #8480 --
2 Heinze, A. N.; Tonry, J. L.; Denneau, L.; et al., 2018, A First Catalog of
Variable Stars Measured by the Asteroid Terrestrial-impact Last Alert
System (ATLAS)
2018AJ....156..241H
3 Gaia Collaboration et al., 2018, Gaia Data Release 2. Summary of the
contents and survey properties
2018A&A...616A...1G
4 K. Stanek, 2015, ASAS-SN Transients --
5 ASAS-SN Transients (Shappee et al., 2014) 2014ApJ...788...48S
External Links
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Catalog Data
Information from selected catalogs obtained by cross-matching to 2 arc seconds using the CDS X-Match Service. These data may not be complete.
2MASS J = 13.13H = 12.90K = 12.70J - K = 0.43
AllWISE W1 = 12.39W2 = 12.57W1 - W2 = -0.18
Images
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Supporting Documents
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Revision History
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2 Schmeer, Patrick 2020-07-09 10:49 UTC Gaia DR2 position. Type and epoch from 2018A&A...616A...1G. Magnitude range derived from Gaia DR2 data. Period from 2018AJ....156..241H. Discoverer and reference added.
1 Admin, VSX 2015-09-23 22:33 UTC Preserved original object data.