discov_num |
notes |
refcode |
BLA 11 |
Aa,Ab: eta Peg = 44 Peg = Matar. Spectroscopic binary resolved by |
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speckle interferometry. Spectrum of Aa,Ab is composite; G2II-III+F0IV. |
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Hence a quadruple system. |
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The elements P, T, e in the astrometric solution by van de Kamp & |
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Damkoehler (1957) have been taken from the spectroscopic orbit by |
Kam1957 |
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Crawford. The astrometric amplitude is marginal and not certainly real |
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See Baize & Petit (1989) catalog of doubles with variable component. |
Baz1989d |
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Hipparcos astrometric solution adopted some elements from the orbit of |
HIP1997d |
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Crawford (1901). |
Crw1901 |
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Aa,Ab: Malkov et al. (2012) derive dynamical and spectroscopic masses |
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5.17 +/- 0.72 and 3.35 Msun, respectively. |
Mlk2012 |
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Aa,Ab: Ren & Fu (2013) calculated an astrometric orbit, combining |
Ren2013 |
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Hipparcos Intermediate Astrometric Data with spectroscopic elements by |
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Massarotti et al. (2008). |
Msr2008 |
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NPOI Limb-darkened diameter 3.471 +/- 0.027 mas, Sp = G2III, |
NOI2018 |
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R = 24.51 +/- 1.16 \rsun, Teff = 4970 +/- 65 K, |
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L = 330.8 +/- 35.0 \lsun, M = 3.51 +/- 0.13 \msun, |
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Age = 0.27 +/- 0.03 Gyr. |
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BU 1144 |
The pair BC (mags. 10.1-10.1, 0.3") is 91" distant and probably |
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physical; B is BD+29@4740. |
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Aka H 6 21 = S 816. |
|
refcode |
metd |
author |
reference |
Baz1989d |
- |
Baize, P. & Petit, M. |
1989A&AS...77..497B |
Baz1989d |
|
A&AS 77, 497, 1989 |
|
Crw1901 |
- |
Crawford, R.T. |
1901LicOB...1...29C |
Crw1901 |
|
Lick Obs. Bull. 1, 29, 1901 |
|
HIP1997d |
orb - |
Hipparcos |
1997yCat.1239....0E |
HIP1997d |
|
Hipparcos Catalog, ESA SP-1200, 1997 |
|
HIP1997d |
|
(DMSA/O Orbital Solutions) |
|
Kam1957 |
orb - |
van de Kamp, P. & Damkoehler, J.E. |
1957AJ.....62..393V |
Kam1957 |
|
AJ 62, 393, 1957 |
|
Mlk2012 |
not - |
Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. |
2012A&A...546A..69M |
Mlk2012 |
|
A&A 546, A69, 2012 |
|
Msr2008 |
orb - |
Massarotti, A., Latham, D.W., Stefanik, R.P., & Fogel, J. |
2008AJ....135..209M |
Msr2008 |
|
AJ 135, 209, 2008 |
|
NOI2018 |
not j |
Baines, E.K., Armstrong, J.T., Schmitt, H.R., Zavala, R.T., Benson, J.A., Hutter, |
2018AJ....155...30B |
NOI2018 |
|
D.J., Tycner, C. & van Belle, G.T. |
|
NOI2018 |
|
AJ 155, 30, 2018 |
|
Ren2013 |
orb - |
Ren, S. & Fu, Y. |
2013AJ....145...81R |
Ren2013 |
|
AJ 145, 81, 2013 |
|