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Name
  NSV 13073  
AAVSO UID
--  
Constellation
Delphinus Sequence
J2000.0
20 25 21.46 +18 54 53.9  (306.33942 +18.91497) Search nearby
B1950.0 20 23 06.19 +18 45 04.3
Proper motion
RA: -7.8 +/- 8.6 mas/yDec: -6.9 +/- 7.6 mas/ySource: UCAC4
Galactic coord. 60.881 -10.815
Other names

(Internal only)
2MASS J20252146+1854540 ASASSN-V J202521.44+185453.7 ATO J306.3394+18.9149
Gaia DR3 1815459831096886144 SON 10690 UCAC2 38518168
USNO-B1.0 1089-0523703    
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Variability type
EA
Spectral type K
Mag. range
14.45 - 15.11 g
Discoverer G. A. Richter
Epoch
09 Aug 2019 (HJD 2458704.83) Ephemeris
Outburst --
Period 20.9492 d
Rise/eclipse dur. 8.5%  (1.78 d)
Remarks
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1 Nasonov, Dmitry Ellipsoidal variations amplitude 0.25 g.
2 Wils, Patrick J-Ks = 0.77 (2MASS)
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References
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1 Creevey, O. L.; et al., 2023, Gaia Data Release 3: Astrophysical parameters
inference system (Apsis) I -- methods and content overview
2023A&A...674A..26C
2 Gaia collaboration; et al., 2022, Gaia Data Release 3 (Gaia DR3) Part 1
Main source
2022yCat.1355....0G
3 Masci, F. J.; et al., 2019, The Zwicky Transient Facility: Data Processing,
Products, and Archive
2019PASP..131a8003M
4 Tonry, J. L.; et al., 2018, ATLAS: A High-cadence All-sky Survey System 2018PASP..130f4505T
5 Chambers, K. C.; et al., 2016, The Pan-STARRS1 Surveys 2016arXiv161205560C
6 G.A. Richter, Mitt. Verand. Sterne, 5, 99-104 (1970) 1970MitVS...5...99R
7 G.A.Richter, MVS 5, H. 6, 99, 1970. --
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 = 11.99H = 11.39K = 11.22J - K = 0.77
AllWISE W1 = 11.18W2 = 11.32W3 = 10.96W1 - W2 = -0.14
APASS-DR9 B = 15.41V = 14.22g' = 14.93r' = 13.85i' = 13.44B - V = 1.19
GALEX-DR5 NUV = 21.97
Images
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Supporting Documents
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2 NSV 13073 light curve Nasonov, Dmitry 2024-05-05 17:05 UTC Light curve from ZTF DR20, ATLAS and Gaia DR3 photometry data
1 NSV 13073 phase plot Nasonov, Dmitry 2024-05-05 16:18 UTC Light curve from ZTF DR20, PS1 DR2, ATLAS and Gaia DR3 photometry data folded with the best orbital period
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Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
4 Nasonov, Dmitry 2024-05-05 16:18 UTC Type, range, period, epoch and eclipse duration from ZTF, ATLAS, Pan-STARRS1 and Gaia DR3 data. Spectral type from 2023A&A...674A..26C. Gaia DR3 position.
3 Admin, VSX 2010-01-18 23:18 UTC Update from NSV version of July 2009.
2 Wils, Patrick 2006-12-31 12:46 UTC Position from NOMAD.
1 Admin, VSX 2005-12-18 01:33 UTC Initial database population.