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Latest Details
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| Name |
CI Cyg |
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| AAVSO UID |
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| Constellation |
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| J2000.0 |
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| B1950.0 |
19 48 20.65 +35 33 23.2 |
| Proper motion |
| RA: -2.779 +/- 0.068 mas/y | Dec: -2.769 +/- 0.088 mas/y | Source: Gaia DR1 |
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| Galactic coord. |
70.896 +4.742 |
Other names
(Internal only)
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Please note that aliases shown in grey link to obsolete records.
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2MASS J19501182+3541029 |
AAVSO 1946+35 |
AN 10.1922 |
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ASASSN-V J195011.91+354102.4 |
Downes CI Cyg |
HIP 97594 |
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HV 3625 |
Hen 3-1784 |
IOMC 2681000051 |
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MWC 415 |
TIC 83299618 |
TYC 2681-154-1 |
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VV 172 |
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| Variability type |
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ZAND+E |
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| Spectral type |
Bep+M5III |
| Mag. range |
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9.0 - 12.3 V |
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| Discoverer |
Annie J. Cannon (1922) |
| Epoch |
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| Outburst |
-- |
| Period |
852.98 d |
| Rise/eclipse dur. |
16% (136 d) |
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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 |
d = 0.084P. Depth of eclipses ~0.8m. The eclipses of B star are observed. Usually there are light fluctuations near mean brightness ( ~12.1m). The outbursts last some dozens and hundreds days. Light curves [A.Puchinskas, Vilnyus Byull. N33, 50, 1972., M.Beyer, Bamb Ver 10, N120, 1976., M.I.Myalkovskij, Perem. Zvezdy Supplement 3, 71-91, 1977., T.S.Belyakina, in "Variable Stars and Stellar Evolution", IAU Symp N67, P.397, 1975.]. Emissions of H, He I, He II, [O III], and N III. |
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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 |
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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2 |
A. Skopal, S. Shugarov, M. Vanko, P. Dubovsky, S. P. Peneva, E. Semkov, M.
Wolf, 2012, arXiv:1203.4932v1 [astro-ph.SR] |
2012arXiv1203.4932S |
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3 |
R.A. Downes et al., 2001, PASP 113, 764 (2006 archival version) |
2005JAD....11....2D |
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4 |
R.A. Downes et al., 2001, PASP 113, 764 |
2001PASP..113..764D |
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5 |
W.J.Miller, Ric Astr 7, N10, 1967. |
1967RA......7..315M |
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6 |
L.H.Aller, Victoria Publ 9, N11, 1954. |
-- |
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7 |
Guthnick, P.; et al., 1924, Benennung von neu entdeckten veränderlichen
Sternen |
1924AN....223...41G |
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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 = 5.76 | H = 4.76 | K = 4.41 | J - K = 1.35 |
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AllWISE
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W1 = 4.29 | W2 = 4.07 | W3 = 4.01 | W4 = 3.57 | W1 - W2 = 0.22 | W3 - W4 = 0.44 |
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APASS-DR9
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B = 12.13 | V = 10.93 | g' = 11.57 | r' = 10.02 | B - V = 1.20 |
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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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