Basic data (System:1077)

C1900.0 :18407+5526
C2000.0 :184237953+55322205
Comp. :
Magn. : 5.05(V)
Spect. :A0 ; A0


Identifiers:

BD +55 2107Flamsteed 46 DraGAIADR2 2147865732587997056HD 173524
HIP 91755


Orbit

ElementValueStd. dev.
Period (d.):9.8107
Periastron time (xJD-2,400,000.0):40003.22
Reference T0/epoch:JD
Eccentricity:0.20
omega primary (deg.):173.
K1 (km/s):25.1
K2 (km/s):29.5
V0 (km/s):-31.0
sigma residuals primary:
sigma residuals secondary:
#RV primary:
#RV secondary:
Grade:4.0
Contributor:DAO
Status:PUB
Bibcode:1976PDAO...14..379A
Derived quantities (on the fly, from the above quantities)
a1sini (km):3.31775e+060
a2sini (km):3.89934e+060
m1sin**3 i (sol.mass):0.08440670
m2sin**3 i (sol.mass):0.07181720

Note

The values found for K1 and K2 by Aikman are lower than those found by R.M.
Petrie (Publ. Dom. Astrophys. Obs., 6, 285, 1935), but since Aikman's are
derived from spectrograms of higher dispersion they are probably the more
reliable. The values of e, omega and V0 obtained in the two investigations
agree reasonably well. Petrie(I) found Delta m=0.29. He estimated i=23 deg.

Plot

Orbit
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D.Pourbaix

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