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Latest Details
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| Name |
HN 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 31 40.11 +28 49 40.2 |
| Proper motion |
| RA: 5.3 +/- 6.7 mas/y | Dec: -4.6 +/- 7.0 mas/y | Source: UCAC4 |
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| Galactic coord. |
63.281 +4.469 |
Other names
(Internal only)
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Please note that aliases shown in grey link to obsolete records.
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2MASS J19333996+2856143 |
AAVSO 1929+28B |
AN 294.1929 |
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ASASSN-V J193339.90+285614.2 |
Downes HN Cyg |
IRAS 19316+2849 |
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NSVS 8368758 |
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| Variability type |
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SRB |
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| Spectral type |
M5-M6.5II/III |
| Mag. range |
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13.2 - 14.9 V |
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| Discoverer |
-- |
| Epoch |
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| Outburst |
-- |
| Period |
64.55 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 |
Otero, Sebastian Alberto
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Other periods 48.23 and 111.5 d. Rather irregular. The main period is for the most recent AAVSO data. Best period for the NSVS dataset only (1999) is 73.6 d. |
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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 |
R.A. Downes et al., 2001, PASP 113, 764 (2006 archival version) |
2005JAD....11....2D |
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2 |
Northern Sky Variability Survey, Wozniak, P.R., et al., 2004 |
2004AJ....127.2436W |
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R.A. Downes et al., 2001, PASP 113, 764 |
2001PASP..113..764D |
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4 |
A. Bruch, T. Schimpke, 1992, A&AS 93, 419 |
1992A&AS...93..419B |
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5 |
A.A.Wachmann, Bergd Abh V1, N4, 1966. |
1966AAHam...6..281W |
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6 |
C.Hoffmeister, Sonn Mitt N17, 1930. |
1930MiSon..17....1H |
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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 = 7.62 | H = 6.70 | K = 6.29 | J - K = 1.33 |
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AllWISE
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W1 = 6.05 | W2 = 6.00 | W3 = 5.32 | W4 = 4.62 | W1 - W2 = 0.04 | W3 - W4 = 0.70 |
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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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Revision History
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