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Latest Details
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Name
  Y Oph  
AAVSO UID
000-BBZ-559 (5870 observations)  
Constellation
Ophiuchus Sequence
J2000.0
17 52 38.70 -06 08 36.9  (268.16125 -6.14358) Search nearby
B1950.0 17 49 57.80 -06 07 58.7
Proper motion
RA: -2.48 +/- 0.83 mas/yDec: -4.03 +/- 0.62 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 20.598 +10.120
Other names

(Internal only)
AAVSO 1747-06 BD-06 4672 HD 162714
HIP 87495 HR 6661 IRC -10382
SAO 141926    
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Variability type
DCEP
Spectral type F8Ib-G3Ib
Mag. range
5.87 - 6.34 V
Discoverer --
Epoch
03 Jul 2005 (HJD 2453554.500) Ephemeris
Outburst --
Period 17.125 d
Rise/eclipse dur. 44%
Remarks
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1 Otero, Sebastian Alberto Amplitude decrease.
2 GCVS Team SB1? Porb = 2612d? P var. Before JD2427000 Max = 2408694.77 + 17.11884d*E; since JD2432000 - see Table. [A/H] = -0.2.
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References
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1 P. Pietrukowicz, W.A. Dziembowski, P. Mroz et al., 2013, arXiv:1311.5894
[astro-ph.GA]
2013arXiv1311.5894P
2 Deterministic Components In The Light Curve Amplitude of Y Oph 2010AJ....139..425P
3 E.G.Schmidt, ApJ 165, 335, 1971. 1971ApJ...165..335S
4 A.Brun, M.Petit, Perem. Zvezdy 12, N1, 18, 1959. 1957PZ.....12...18B
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 = 3.67H = 3.08K = 2.82J - K = 0.86
AllWISE W3 = 2.58W4 = 2.47W3 - W4 = 0.11
APASS-DR9
GALEX-DR5 NUV = 15.53
Images
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Supporting Documents
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Revision History
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3 Otero, Sebastian Alberto 2011-10-28 18:51 UTC Type, period, epoch and range from Hipparcos and ASAS-3 data.
2 Admin, VSX 2010-01-04 23:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-17 20:33 UTC Initial upload.