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Latest Details
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| Name |
VV Cep |
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| AAVSO UID |
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| Constellation |
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| J2000.0 |
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| B1950.0 |
21 55 14.49 +63 23 13.1 |
| Proper motion |
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| Galactic coord. |
104.919 +7.046 |
Other names
(Internal only)
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AAVSO 2153+63 |
BD+62 2007 |
HD 208816 |
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HIP 108317 |
HR 8383 |
IRC +60333 |
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RAFGL 2821 |
SAO 19753 |
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(Not logged in) Add name
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| Variability type |
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EA/GS+SRC |
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| Spectral type |
M2Iabe+B0/2Ve |
| Mag. range |
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4.88 - 5.40 V |
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| Discoverer |
-- |
| Epoch |
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| Outburst |
-- |
| Period |
7498 d (20.53 y) |
| Rise/eclipse dur. |
12%: (129 weeks) |
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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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The 1998 eclipse was 68 days late according to the ephemeris by Gaposchkin JD 2421070 + 7430 x E. Eclipse duration is variable (from 8 to 13%). |
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2 |
GCVS Team |
VB (0.05", 174deg, 1950)? 0.066P <= D <= 0.091P; 0.040P <= d <= 0.077P. Depth of eclipses: 2.30m (lambda 3500 A), 1.9m (U), 0.4m (B). M-component is of SRC type: Max = 2443045 + 118.37d*E [M.Saito, H.Sato, K.Saijo, T.Hayasaka, PAS Japan 32, 163-177, 1980., G.P.McCook, E.F.Guinan, IBVS N1385, 1978.]; A(V) <= 0.33m. Light oscillations are also noted with P ~58d [L.Baldinelli, S.Ghedini, S.Marmi, IBVS N1675, 1979.], 25d and 150d [G.Hill, G.L.C.Aikman, R.W.Hilditch, E.L.Pfannenschmidt, P.F.Younger, Victoria Publ 15, N10, 389, 1980.]. B-component may be also an intrinsic variable [G.Larsson-Leander, Stockh Medd N96, 1957.]. Gaseous streams. Strong variable magnetic field. |
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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 |
Hopkins, J. L.; Bennett, P. D.; Pollmann, E., 2015, VV Cephei Eclipse
Campaign 2017/19 |
2015SASS...34...83H |
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2 |
Leedjärv, L.; Graczyk, D.; Mikolajewski, M.; et al., 1999, The 1997/1998
eclipse of VV Cephei was late |
1999A&A...349..511L |
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M.Saito, H.Sato, K.Saijo, T.Hayasaka, PAS Japan 32, 163-177, 1980. |
1980PASJ...32..163S |
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L.W.Fredrick, Sky and Tel 18, N3, 132, 1959. |
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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 = 1.23 | H = 0.37 | K = -0.00 | J - K = 1.23 |
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AllWISE
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W3 = -0.39 | W4 = -0.79 | W3 - W4 = 0.41 |
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Images
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Supporting Documents
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Campaigns/Programs
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SNEWS Campaign
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Revision History
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