discov_num |
notes |
refcode |
STF 262 |
iot Cas. The primary is an unresolved binary, also an Alpha CVn |
|
CHR 6 |
type variable, P = 1.74 d, and an astrometric, spectroscopic, and |
|
|
spectrum variable (Rakos 1962; Klock, AJ 70, 176, 1965). The RV |
Rak1962 |
|
variation has not been confirmed. |
|
|
Heintz (1962) also detected this pair as a submotion to the visual |
Hei1962 |
|
orbit of the AB pair with a period of 52 years and an amplitude of |
|
|
0".11. Star C (mag. 8.4, dG4) is probably physical, but Hopmann |
Hop1960b |
|
(1960) computed a hyperbolic orbit for it, as there is some RV |
|
|
difference between C and A. q = periastron distance in the true |
|
|
orbit = 6".7056. All hyperbolic orbits were rejected from the |
|
|
Fourth and subsequent orbit catalogs. |
Wor1983 |
|
Soderhjelm gives Aa,Ab,B,C quadruple solution (AB in HIP). High |
Sod1999 |
|
mass-sum, strangely well-behaved speckle obs at Delta m=4? |
|
|
See Baize & Petit (1989) catalog of doubles with variable component. |
Baz1989d |
|
Drummond et al. (2003) give solution for Aa,Ab incorporating motion of |
Dru2003 |
|
the AB pair. The authors conclude that the motion of B relative to |
|
|
the CHR pair appears to be rectilinear. Masses of the CHR components |
|
|
are derived. |
|
|
1985.8540: This autocorrelogram was remeasured; the new results are |
|
|
listed in the catalog. |
McA1987b |
STF 262 |
AB: H 1 34. AC: H 3 4. |
MEv2010 |
|
AC: Hyperbolic orbit. |
Hop1960b |
refcode |
metd |
author |
reference |
Baz1989d |
- |
Baize, P. & Petit, M. |
1989A&AS...77..497B |
Baz1989d |
|
A&AS 77, 497, 1989 |
|
Dru2003 |
A j |
Drummond, J.D., Milster, S., Ryan, P., & Roberts, L.C. |
2003ApJ...585.1007D |
Dru2003 |
+orb |
ApJ 585, 1007, 2003 |
|
Hei1962 |
orb - |
Heintz, W.D. |
1962VeMun...5..135H |
Hei1962 |
|
Veroff. Sternw. Munchen 5, 135-160, 1962 |
|
Hop1960b |
orb - |
Hopmann, J. |
1960MiWie..10..227H |
Hop1960b |
|
Mitt. Sternw. Wien 10, 227-256, 1960 |
|
McA1987b |
Sc j |
McAlister, H.A., Hartkopf, W.I., Hutter, D.J., & Franz, O.G. |
1987AJ.....93..688M |
McA1987b |
|
AJ 93, 688, 1987 |
|
MEv2010 |
- |
MacEvoy, B. |
................... |
MEv2010 |
|
private communication, 2010 (see http://www.handprint.com/ASTRO/index.html) |
|
Rak1962 |
- |
Rakos, K.,D. |
1962LowOB...5..227R |
Rak1962 |
|
Lowell Obs. Bull. 5, 227, 1962 |
|
Sod1999 |
orb - |
Soderhjelm, S. |
1999A&A...341..121S |
Sod1999 |
|
A&A 341, 121, 1999 |
|
Wor1983 |
- |
Worley, C.E. & Heintz, W.D. |
1983PUSNO..24g...1W |
Wor1983 |
|
Pub. USNO 24, Pt. 7, 1983 (Fourth Orbit Catalog) |
|