discov_num | notes | refcode |
CHR 39 | Aa,Ab. 44 Vir. Rapid binary. | |
1991.3921: This interferometric system has now completed nearly 180deg | ||
of revolution since its discovery in 1984. A preliminary | ||
determination of orbital elements yields a low-eccentricity orbit with | ||
a period of 15.7 years. Absolute quadrant determinations based on | ||
reanalysis of earlier speckle data have ruled out a possible short- | ||
period high-eccentricity orbit. A more complete orbital analysis is in | ||
progress. | ||
Aa,Ab: Malkov et al. (2012) derive dynamical, photometric, and | ||
spectroscopic masses 3.41 +/- 0.75, 3.58, and 2.00 Msun, respectively. | Mlk2012 | |
STF1704 | AB: H 4 51. | MEv2010 |
refcode | metd | author | reference |
Doc2015g | orb - | Docobo, J.A. & Campo, P. | 2015IAUDS.187R...1D |
Doc2015g | Inf. Circ. 187, 1, 2015 | ||
MEv2010 | - | MacEvoy, B. | ................... |
MEv2010 | private communication, 2010 (see http://www.handprint.com/ASTRO/index.html) | ||
Mlk2012 | not - | Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. | 2012A&A...546A..69M |
Mlk2012 | A&A 546, A69, 2012 |
idgroup | discov | author |
1 | CHR | Center for High Ang. Res. Astronomy (speckle interferometry systems) |
3 | STF | Struve, F.G.W. |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
12597-0349 | CHR 39 | Aa,Ab | 2006 | 18 | 344 | 0.1 | 5.80 | A3V | NO | 125939.55-034843.0 | |
12597-0349 | CHR 39 | Aa,Ab | 2009 | 20 | 57 | 0.1 | 5.80 | A3V | NO | 125939.55-034843.0 | |
12597-0349 | CHR 39 | Aa,Ab | 2014 | 21 | 348 | 0.1 | 5.90 | 8.30 | B9.5V | NO | 125939.55-034843.0 |
12597-0349 | CHR 39 | Aa,Ab | 2017 | 23 | 64 | 0.1 | 5.90 | 8.30 | B9.5V | NO | 125939.55-034843.0 |
12597-0349 | CHR 39 | Aa,Ab | 2018 | 26 | 155 | 0.1 | 5.90 | 8.30 | B9.5V | NO | 125939.55-034843.0 |
12597-0349 | CHR 39 | Aa,Ab | 2019 | 29 | 211 | 0.0 | 5.90 | 8.30 | B9.5V | NO | 125939.55-034843.0 |
12597-0349 | CHR 39 | Aa,Ab | 2021 | 30 | 317 | 0.1 | 5.90 | 8.30 | B9.5V | NO | 125939.55-034843.0 |