Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006astl...32..836k&link_type=abstract
Astronomy Letters, Volume 32, Issue 12, pp.836-844
Astronomy and Astrophysics
Astronomy
2
Scientific paper
An approximate orbit of the wide visual binary star ADS 9173 A(Bb) with a period of ˜6000 yr has been determined for the first time by the method of apparent motion parameters. The orbit was computed using a short (1982 2004) arc of photographic observations obtained with the 26-inch Pulkovo Observatory refractor and the Hipparcos parallax. Agreement of the new orbit with the observations from the WDS catalog beginning in 1832 serves as a check. The errors in the orbital elements are large, but the orientation elements of the orbital plane (i and Ω) were estimated reliably. Component B has an invisible spectroscopic companion with a period of 4.9 yr. An astrometric orbit of Bb consistent with radial velocity measurements was determined from the residuals to the relative orbital motion of A(Bb). The orbital planes are nearly coplanar. If the mass of component B is taken in accordance with the mass—luminosity relation, 1.5 M &sun;, and the parallax is 0.″021, then the mass of the secondary component is no less than 0.5M &sun;. Component A may also be a long-period binary system.
No associations
LandOfFree
Astrometric study of the triple star ADS 9173 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Astrometric study of the triple star ADS 9173, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Astrometric study of the triple star ADS 9173 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1241850