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Latest Details
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| Name |
RT Ara |
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| AAVSO UID |
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| Constellation |
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| J2000.0 |
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| B1950.0 |
17 22 09.55 -55 11 19.3 |
| Proper motion |
| RA: 0.5 +/- 1.5 mas/y | Dec: -14.2 +/- 1.5 mas/y | Source: UCAC4 |
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| Galactic coord. |
335.701 -10.974 |
Other names
(Internal only)
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Please note that aliases shown in grey link to obsolete records.
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AAVSO 1718-55 |
AN 118.1910 |
ASAS J172619-5514.0 |
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ASASSN-V J172618.17-551355.9 |
CD-55 7174 |
CPD-55 8112 |
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HV 3290 |
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| Variability type |
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RV |
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| Spectral type |
F8Ia |
| Mag. range |
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10.2 - 11.3 V |
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| Discoverer |
Annie J. Cannon (1910) |
| Epoch |
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| Outburst |
-- |
| Period |
76.69 d |
| Rise/eclipse dur. |
-- |
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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 |
GCVS Team |
According to Cannon [A.J.Cannon, HC N162, 1910.] who discovered the star's variability, a companion 12.0m is present in 0.1m to W and somewhat to the north from the variable. Cannon points out that at Min light the variable becomes fainter than the companion. No sign of the companion's existence was found by Hoffmeister [C.Hoffmeister, KVBB N27, 1943.] and by Payne-Gaposchkin [C.Payne-Gaposchkin, HA 115, N3, 1945.]. According to [C.Payne-Gaposchkin, HA 115, N3, 1945.], the mean cycle is ~78d, and RVA type is possible. |
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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 |
N.N Samus, E.N. Pastukhova, O.V. Durlevich, 2007, PZ 27, 6 |
2007PZ.....27....6S |
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2 |
G.Pojmanski, Acta Astronomica 52, 397, 2002. |
2002AcA....52..397P |
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3 |
Catalogue of Stellar Spectral Classifications (Skiff, 2005) |
1972POAN....2...59S |
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4 |
J.Kordylewska, R.Szafraniec, EBC N36, 1960. |
-- |
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5 |
C.Hoffmeister, KVBB N27, 1943. |
1941KVeBB...7....3H |
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Dunér, N. C.; Hartwig, E.; Muller, G., 1911, Benennung von neu entdeckten
veränderlichen Sternen |
1911AN....190...57. |
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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 = 8.89 | H = 8.60 | K = 8.52 | J - K = 0.37 |
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AllWISE
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W1 = 8.52 | W2 = 8.36 | W3 = 8.24 | W4 = 7.98 | W1 - W2 = 0.16 | W3 - W4 = 0.25 |
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APASS-DR9
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B = 11.95 | V = 11.09 | g' = 11.49 | r' = 10.81 | i' = 10.38 | B - V = 0.86 |
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Images
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Supporting Documents
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Revision History
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