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Latest Details
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Name
  NSV 7318  
AAVSO UID
--  
Constellation
Norma Sequence
J2000.0
15 55 32.37 -60 10 39.5  (238.88487 -60.17764) Search nearby
B1950.0 15 51 20.01 -60 01 50.2
Proper motion
RA: -46.62 +/- 0.71 mas/yDec: -70.47 +/- 0.71 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 323.989 -5.065
Other names

(Internal only)
2MASS J15553236-6010396 CCDM J15555-6011A CD-59 5917
CD-59 5917A CPD-59 6428 Gaia DR3 5833110434699732352
HD 142049 HD 142049 A HIP 77990
HR 5900 SAO 253349 TIC 341029467
TYC 9023-2693-1 UCAC4 150-175265 WDS J15555-6011A
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Variability type
EA+HB
Spectral type kA3hF3mF4
Mag. range
5.87 V (0.141)TESS
Discoverer B. A. Gould
Epoch
24 May 2023 (HJD 2460089.142) Ephemeris
Outburst --
Period 13.22044 d
Rise/eclipse dur. 3.08%  (0.407 d)
Remarks
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1 Otero, Sebastian Alberto Eccentric system. Min II at phase 0.2996 is total. Amplitude 0.109 TESS. Duration 1.69%. HB amplitude 0.001 TESS. Visual binary, B is the rotational variable Gaia DR3 5833110434673386240 (V= 8.45; sep. 4.7").
2 GCVS Team VB (6.1, 9.1, 3".9, 100deg, 1933).
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References
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1 Huang, C. X.; et al., 2020, Photometry of 10 Million Stars from the First
Two Years of TESS Full Frame Images: Part I		 2020RNAAS...4..204H
2 Mellon, S. N.; Mamajek, E. E.; Stuik, R.; et al., 2019, Bright Southern
Variable Stars in the bRing Survey		 2019ApJS..244...15M
3 B.A.Gould, Cord Res 1, 128-342, 1879. --
External Links
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Location    Go   
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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 = 5.26H = 5.22K = 5.04J - K = 0.22
AllWISE W1 = 4.87W2 = 4.55W3 = 4.91W4 = 4.87W1 - W2 = 0.32W3 - W4 = 0.04
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 15 55 32.37 -60 10 39.5 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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3 Phase plot - Heartbeat variations Otero, Sebastian Alberto 2024-07-12 01:09 UTC Phase plot zoomed in the maximum and minimum of the heartbeat, using TESS QLP data.
2 Zoomed Min II phase plot Otero, Sebastian Alberto 2024-07-12 01:08 UTC Phase plot showing the secondary minimum, with TESS QLP data.
1 Phase plot Otero, Sebastian Alberto 2024-07-12 01:06 UTC Phase plot with TESS QLP data.
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Revision History
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3 Otero, Sebastian Alberto 2024-07-12 01:06 UTC Type (EA) and spectral type from 2019ApJS..244...15M. Type (HB), period, epoch, eclipse duration and amplitudes from TESS QLP data. Mean magnitude derived from the GCPD and Gaia DR3 data.
2 Admin, VSX 2010-01-18 23:18 UTC Update from NSV version of July 2009.
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.

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