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Name
V0640 Cas
AAVSO UID
Constellation
J2000.0
B1950.0
00 03 39.73 +58 09 30.0
Galactic coord.
117.034 -3.917
Other names(Internal only)
ADS 61
BD+57 2865
G 243-13
GJ 4.1 AB
HD 123
HIP 518
HR 5
SAO 21085
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Variability type
E:
Spectral type
--
Mag. range
5.96 (0.066) V
Discoverer
--
Epoch
Outburst
--
Period
--
Rise/eclipse dur.
--
Remarks
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1
Otero, Sebastian Alberto
No variability above a level of 0.02 mag with periods in interval 1.02-1.1 days (2009AJ....138..664Z ) as reported in IBVS 2389. HIPPARCOS data show a small amplitude single wave modulation with a period consistent with the spectroscopic period published in 2001A&A...374..227T (47.51 d.) and 1999Obs...119...27G (47.685 d.). Visual binary. The variable is the inner fainter BaBb component (V= 7.28) orbiting the G3V primary (V= 6.36) 1.5" away with P= 106.7 years (1999A&A...341..121S ). Combined range given.
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References
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1
P. Zasche et al., 2009, AJ 138, 664
2009AJ....138..664Z
2
Tokovinin, A. A.; Gorynya, N. A., 2001, New spectroscopic components in
2001A&A...374..227T
3
Griffin, R. F., 1999, Spectroscopic binary orbits from photoelectric radial
1999Obs...119...27G
4
Söderhjelm, S., 1999, Visual binary orbits and masses POST HIPPARCOS
1999A&A...341..121S
5
Perryman, M. A. C.; et al., 1997, The HIPPARCOS and TYCHO catalogues
1997HIP...C......0E
6
O.H.Brettman, R.E.Fried, W.M.DuVall, D.S.Hall, C.H.Poe, J.Scott Shaw, IBVS
1983IBVS.2389....1B
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Location
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Supporting Documents
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Stellar Association Membership
Alessi 20
Open Cluster
2012A&A...548A..97Z
Revision History
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