| discov_num |
notes |
refcode |
| RHD 1 |
alp Cen = LDS 494 = Rigel Kentaurus. C is Proxima Centauri = V645 Cen. |
|
|
According to R.G. Aitken, this was discovered by |
A__1935f |
|
Father Richaud while observing a comet at Pondicherry, India, in |
Rhd1729 |
|
December 1689. P= 79.9y, a = 17.52", motion direct. Due to the |
|
|
proximity of the pair and the eccentricity of the system, the |
|
|
separation ranges from 2 to 22". AB is also known as Rigil Kentaurus. |
|
|
Henroteau notes that a first attempt to measure the relative positions |
HFC1928 |
|
of binary components was made by Father Louis Feuillee in 1709, when |
Feu1714 |
|
he estimated the position angle and distance for alp Cen. |
|
|
Proper motion -3642 +699. The distant companion, Proxima Centauri, |
|
|
distance 9000" was discovered by Innes. It is the flare star V645 Cen, |
I__1905 |
|
(mag. 10.7, 2.2 degrees distant, M5Ve). See Kamper & Wesselink (1978). |
Kpr1978 |
|
The secular changes of a, i, node, and longitude of periastron have |
|
|
been allowed for; quoted elements are for 2000.0. |
|
|
The semi-major axis has been revised (Heintz 1982). |
Hei1982a |
|
Difficult for Hipparcos with secondary (= HIP 71681) at edge of |
Sod1999 |
|
the sensitivity profile. Present parallax preferable to HIP value. |
|
|
Mass-ratio from Kamper & Wesselink. |
|
|
Pourbaix gives two combined solutions for this resolved SB2, each |
Pbx2000b |
|
yielding orbital parallaxes and component masses. |
Pbx2002 |
|
AB: Additional notes may be found in van den Bos (1931). |
B__1931b |
|
AB: Malkov et al. (2012) derive dynamical, photometric, and |
|
|
spectroscopic masses 1.98 +/- 0.03, 2.04, and 1.79 Msun, respectively. |
Mlk2012 |
|
Powell also measured a more distant component (CPD-60 5485) which is |
Pwl1864 |
|
obviously non-physical (1860.312, 353.7 deg, 161.5"). |
|
|
VLTI Uniform disk diameter of A,B: |
LTI2003b |
|
= 8.314 +/- 0.016, 5.856 +/- 0.027 mas, |
|
|
VLTI Limb-darkened diameter of A,B: |
|
|
= 8.511 +/- 0.020, 6.001 +/- 0.034 mas, |
|
|
R = 1.224 +/- 0.003, 0.863 +/- 0.005 \rsun. |
|
|
VLTI Limb-darkened diameter of Proxima (C) 1.044 +/- 0.08 mas, |
LTI2003a |
|
M = 0.123 +/- 0.006 \msun, R = 0.145 +/- 0.011 \rsun, |
|
|
T = 3042 +/- 117 K. |
|
|
VLTI uniform disk diameter of C: 0.990 +/- 0.050 mas, |
LTI2009 |
|
VLTI limb-darkened disk diameter of C: 1.011 +/- 0.052 mas, |
|
|
R = 0.141 +/- 0.007 \rsun, Teff = 3098 +/- 56 K, |
|
|
M = 0.123 +/- 0.006 \msun. |
|
|
Teff-A = 5829 +/- 6, Teff-B = 5189 +/- 18 K. |
XXX2018a |
|
Based on astroseismology, age is 5.9 to 7.3 Gyr. |
XXX2021a |
|
Ma = 1.0788 +/- 0.0029 \msun, Mb = 0.9092 +/- 0.0025 \msun; |
|
|
Ra = 1.2175 +/- 0.0055 \rsun, Rb = 0.8591 +/- 0.0036 \rsun. |
Ake2021 |
| LDS 494 |
AC: alp Cen + Proxima Cen |
|
|
The Kervella et al. (2017) orbit is based on the following adopted |
|
|
physical parameters: |
|
|
alp Cen A: M = 1.1055 +/- 0.0039 Msun R = 1.2234 +/- 0.0053 Rsun |
|
|
alp Cen B: 0.9373 0.0033 0.8632 0.0037 |
|
|
Proxima : 0.1221 0.0022 0.1542 0.0045 |
Kev2017 |
| SCZ 1 |
Ca,Cb: Proxima Centauri. Not a binary! |
Tok2014d |
|
Ca: Based on spectroscopic orbit of Proxima Cen b by Anglada-Escude et |
|
|
al. (2016 Nature 536, 438), Brown (2017) derives an estimate of 0.25 |
|
|
for the eccentricity of the planetary companion. |
BnR2017 |
| alp Cen |
Beamin et al. (2017) searched for faint co-moving companions to the |
|
|
alpha Cen system, examining CCD tiles covering a ~19 deg^2 area and |
|
|
taken at multiple epochs between 2010.2 and 2015.5. No additional |
|
|
companions were detected down to limiting magnitudes Y=19.3 and J=19. |
VVV2017b |
| refcode |
metd |
author |
reference |
| A__1935f |
- |
Aitken, R.G. |
1935QB821.A3....... |
| A__1935f |
|
The Binary Stars, 1935 |
|
| Ake2021 |
Ka j |
Akeson, R.L., Beichman, C., Kervella, P., Fomalont, E. & Benedict, G.F. |
2021AJ....162...14A |
| Ake2021 |
+orb |
AJ 162, 14, 2021 |
|
| Ake2021 |
+not |
|
|
| B__1931b |
Ma - |
van den Bos, W.H. |
1931CiUO...85..183V |
| B__1931b |
|
Union Obs. Johannesburg Circ. 85, 183, 1931 |
|
| Feu1714 |
- |
Feuillee, Louis |
................... |
| Feu1714 |
|
Journal des Observations Physiques, Paris 1, p 425, 1714 |
|
| Hei1982a |
orb - |
Heintz, W.D. |
1982Obs...102...42H |
| Hei1982a |
|
Observatory 102, 42, 1982 |
|
| HFC1928 |
- |
Henroteau, F.C. |
1928HDA.....6..299H |
| HFC1928 |
|
Handbuch der Astrophysik 6, part 2, 299, 1928 (no data) |
|
| I__1905 |
Ma - |
Innes, R.T.A. |
1905AnCap...2....4I |
| I__1905 |
|
Ann. Cape Obs. 2, Pt.4, 1905 |
|
| Kpr1978 |
- |
Kamper & Wesselink |
1978AJ.....83.1653K |
| Kpr1978 |
|
AJ 83, 1653, 1978 |
|
| LTI2003a |
not j |
Segransan, D., Kervella, P., Forveille, T. & Queloz, D. |
2003A&A...397L...5S |
| LTI2003a |
|
A&AL 397, 5, 2003 |
. |
| LTI2003b |
not j |
Kervella, P., Thevenin, F., Segransan, D., Berthomieu, G., Lopez, B., Morel, P. & |
2003A&A...404.1087K |
| LTI2003b |
|
Provost, J. |
. |
| LTI2003b |
|
A&A 404, 1087, 2003 |
. |
| LTI2009 |
not j |
Demory, B.-O., Segransan, D., Forveille, T., Queloz, D., Beuzit, J.-L., Delfosse, |
2009A&A...505..205D |
| LTI2009 |
|
X., Di Folco, E., Kervella, P., Le Bouquin, J.-B., Perrier, C., Benisty, M., |
. |
| LTI2009 |
|
Duvert, G., Hofmann, K.-H., Lopez, B. & Petrov, R. |
. |
| LTI2009 |
|
A&A 505, 205, 2009 |
. |
| Mlk2012 |
not - |
Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. |
2012A&A...546A..69M |
| Mlk2012 |
|
A&A 546, A69, 2012 |
|
| Pbx2000b |
orb - |
Pourbaix, D. |
2000A&AS..145..215P |
| Pbx2000b |
|
A&AS 145, 215, 2000 |
|
| Pbx2002 |
orb - |
Pourbaix, D., Nidever, D., McCarthy, C., Butler, R.P., Tinney, C.G., Marcy, G.W., |
2002A&A...386..280P |
| Pbx2002 |
|
Jones, H.R.A., Penny, A.J., et al. |
|
| Pbx2002 |
|
A&A 386, 280, 2002 |
|
| Pwl1864 |
Ma j |
Powell, E.B. |
1864MmRAS..32...75P |
| Pwl1864 |
|
MemRAS 32, 75, 1864 |
|
| Rhd1729 |
- |
Richaud, Father |
................... |
| Rhd1729 |
|
Paris, Histoire de l'Academie des Sciences avant son renouvellement en 1699, 7, |
|
| Rhd1729 |
|
p 206, 1729 |
|
| Rhd1729 |
|
West Ranch High School |
|
| Sod1999 |
orb - |
Soderhjelm, S. |
1999A&A...341..121S |
| Sod1999 |
|
A&A 341, 121, 1999 |
|
| Tok2014d |
E2 - |
Tokovinin, A. |
2014AJ....147...86T |
| Tok2014d |
|
AJ 147, 86, 2014 |
|
| VVV2017b |
N - |
Beamin, J.C., Minniti, D., Pullen, J.B., Ivanov, V.D., Bendek, E., Bayo, A., |
2017MNRAS.472.3952B |
| VVV2017b |
|
Gromadzki, M., Kurtev, R., Lucas, P.W., & Butler, R.P. |
|
| VVV2017b |
|
MNRAS 472, 3952, 2017 |
|
| XXX2018a |
not |
Morel, T. |
2018A&A...615A.172M |
| XXX2018a |
|
A&A 615, 72, 2018 |
|
| idgroup |
discov |
author |
| 1 |
LDS |
Luyten p.m. catalog (from additional DD list) |
| 1 |
SCZ |
Schultz, A.B., Hart, H.M., Hershey, J.L., Hamilton, F.C., Kochte, M., |
| 1 |
SCZ |
Bruhweiler, F.C., Benedict, G.F., Caldwell, J., Cunningham, C., Wu, Nailong, |
| 1 |
SCZ |
Franz, O.G., Keyes, C.D., & Brandt, J.C. |
| 2 |
SCZ |
Schultz, A.B. , Hart, H.M., Herschey, J.L., Hamilton, F.C., Kochte, M., |
| 2 |
SCZ |
Bruhweiler, F.C., Benedict, G.F., Caldwell, J., et al. |
