Basic data (System:947)

C1900.0 :17033+5436
C2000.0 :170520116+54281215
Comp. :B
Magn. : 5.83
Spect. :F7V


Identifiers:

Bayer $\mu$ DraBD +54 1857Flamsteed 21 DraHD 154905
HIP 83608


Orbit

ElementValueStd. dev.
Period (d.):2270.
Periastron time (xJD-2,400,000.0):42309.
Eccentricity:0.43
omega primary (deg.):205.
K1 (km/s):2.8
K2 (km/s):
V0 (km/s):-16.5
sigma residuals primary:
sigma residuals secondary:
#RV primary:
#RV secondary:
Grade:1.0
Contributor:DAO
Status:PUB
Bibcode:1979AnTok..17..158I
Derived quantities (on the fly, from the above quantities)
a1sini (km):7.89084e+070
f(m) (sol.mass):0.003813980

Note

This is the fainter component of A.D.S. 10345, for which a number of orbits
have been computed. Even the period of the visual pair is uncertain, however,
except for the fact that it is to be measured in centuries. The component A is
similar in magnitude and spectral type. Ishida finds evidence for a
low-amplitude variation in the velocity of B, which he ascribes to binary
motion. Confirmation is desirable. There is also a companion C, 13.8m at about
13".

Plot

Orbit
Encapsulated PostScript file

D.Pourbaix

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