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Latest Details
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Log in to retrieve additional aliases from SIMBAD. |
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| Name |
YY Sgr |
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| AAVSO UID |
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| Constellation |
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| J2000.0 |
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| B1950.0 |
18 41 38.98 -19 26 30.4 |
| Proper motion |
| RA: 1.4 +/- 1.8 mas/y | Dec: -1.7 +/- 3.3 mas/y | Source: UCAC4 |
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| Galactic coord. |
14.825 -7.258 |
Other names
(Internal only)
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Please note that aliases shown in grey link to obsolete records.
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AN 38.1908 |
ASAS J184436-1923.4 |
BD-19 5148 |
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CPD-19 7051 |
HD 173140 |
HV 3080 |
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IOMC 6288000032 |
PPM 234960 |
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| Variability type |
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EA |
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| Spectral type |
B8+B8 |
| Mag. range |
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10.02 - 10.73 V |
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| Discoverer |
Annie J. Cannon (1908) |
| Epoch |
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| Outburst |
-- |
| Period |
2.628437 d |
| Rise/eclipse dur. |
10% (6.31 h) |
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Remarks
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Some references may be clicked to view in new window. Roll over index number to view submission details.
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1 |
Otero, Sebastian Alberto
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Min I elements in the table. Eccentric system with apsidal motion. Min II elements: HJD 2453118.005 + 2.628475 x E. |
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2 |
GCVS Team |
Min II 10.64; Min II = 2433075.8296 + 2.628463d*E [K.Kordylewski, SAC N29, 1958.]. Apsidal motion period is about 300 years. |
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References
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Click reference title/citation to view in new window. Roll over index number to view submission details.
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1 |
Bob Nelson's O-C files, 2016 |
-- |
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2 |
J. Alfonso-Garzon, A. Domingo, J.M. Mas-Hesse, A. Gimenez, 2012,
arXiv:1210.0821 [astro-ph.IM] (online info) |
2012arXiv1210.0821A |
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3 |
S.J. Williams, D.R. Gies, J.W. Helsel, R.A. Matson, S. Caballero-Nieves,
2011, arXiv:1104.3166v1 [astro-ph.SR] |
2011arXiv1104.3166W |
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4 |
G.Pojmanski, Acta Astronomica 52, 397, 2002. |
2002AcA....52..397P |
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5 |
Catalogue of Stellar Spectral Classifications (Skiff, 2005) |
1984IBVS.2489....1L |
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6 |
V.P.Zessewitsch, Odessa Izv. 4, Issue 2, 1954. |
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7 |
H.Shapley, K.W.Keller, HB N893, 1933. |
1933BHarO.893....6S |
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8 |
Dunér, N. C.; Hartwig, E.; Muller, G., 1912, Benennung von neu entdeckten
veränderlichen Sternen |
1912AN....191..341. |
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9 |
CALEB - Catalog and AtLas of Eclipsing Binaries |
-- |
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External Links
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Location
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Catalog Data
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Information from selected catalogs obtained by cross-matching to 2 arc seconds using the CDS X-Match Service. These data may not be complete.
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2MASS
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J = 9.60 | H = 9.53 | K = 9.55 | J - K = 0.04 |
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AllWISE
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W1 = 9.53 | W2 = 9.56 | W3 = 9.75 | W1 - W2 = -0.02 |
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APASS-DR9
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B = 10.30 | V = 10.37 | g' = 10.38 | r' = 10.21 | i' = 10.18 | B - V = -0.06 |
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Images
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Please review Digitized Sky Survey Acknowledgment and Copyright.
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Supporting Documents
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There are currently no supporting documents on file for this star.
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Revision History
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Currently approved revision is checked. Click revision number to view details of that revision.
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