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Latest Details
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Name
  SvkV49  
AAVSO UID
--  
Constellation
Hercules Sequence
J2000.0
18 40 57.85 +25 24 22.0  (280.24103 +25.40612) Search nearby
B1950.0 18 38 55.35 +25 21 28.2
Proper motion
RA: -3.1 +/- 4.4 mas/yDec: 0.8 +/- 2.3 mas/ySource: UCAC4
Galactic coord. 54.847 +13.436
Other names

(Internal only)
ASASSN-V J184057.80+252421.3 SvkV49 Her UCAC3 231-150890(NSVS J1840399+
UCAC4 578-069017    
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Variability type
EW
Spectral type F0
Mag. range
13.0 - 13.2 CR
Discoverer Peter Nosál
Epoch
20 Jul 2015 (HJD 2457224.468) Ephemeris
Outburst --
Period 0.414745 d  (9.9539 h)
Rise/eclipse dur. --
Remarks
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References
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1 Qian, S.-B.; He, J.-J.; Zhang, J.; et al., 2017, Physical properties and
catalog of EW-type eclipsing binaries observed by LAMOST		 2017RAA....17...87Q
2 SvkV Catalogue, 2016 --
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 = 12.40H = 12.13K = 12.11J - K = 0.29
AllWISE W1 = 12.05W2 = 12.06W3 = 12.03W1 - W2 = -0.01
APASS-DR9 B = 14.39V = 13.42g' = 14.08r' = 13.27i' = 13.11B - V = 0.98
Images
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Supporting Documents
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Revision History
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2 Otero, Sebastian Alberto 2023-04-23 15:27 UTC Spectral type from 2017RAA....17...87Q.
1 Admin, VSX 2017-01-21 01:28 UTC Initial upload.

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