Coord 2000 | 14575-2125 | Discov num | H N 28 | Comp | AB | Coord arcsec 2000 | 14 57 28.00 -21 24 55.7 | ||||
Date first | 1806 | Date last | 2020 | Obs | 161 | ||||||
Pa first | 251 | Pa last | 306.8 | P.A. Now (θ) | 306.8° | ||||||
Sep first | 9.4 | Sep last | 26.194 | Sep. Now (ρ) | 26.194" | ||||||
Mag pri | 5.88 | Mag sec | 8.18 | delta mag (ΔM) | 2.3 | Spectral class | K5Ve+M2V (yellow-orange/red) | ||||
Pri motion ra | +103 | Sec motion ra | +010 | ||||||||
Pri motion dec | -173 | Sec motion dec | -017 | ||||||||
Notes | N O P (See Notes, Orbital solution, 100-year proper motion) |
Show | name | SAO | coord | wds_name | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
Show | KX Lib | 183040 | 14 57 28 -21 24 56 | H N 28 AB | 2020 | 161 | 307 | 26.2 | 5.88 | 8.18 | 2.30 | Y | <=== |
Show | 183040 | 14 57 28 -21 24 56 | H N 28 AC | 2016 | 7 | 324 | 230.5 | 5.88 | 14.00 | 8.12 | |||
Show | 183040 | 14 57 28 -21 24 56 | H N 28 AD | 2016 | 6 | 342 | 294.4 | 5.88 | 13.85 | 7.97 | |||
Show | 183040 | 14 57 28 -21 24 56 | H N 28 AE | 2016 | 7 | 319 | 181.1 | 5.88 | 13.12 | 7.24 | |||
Show | 183040 | 14 57 28 -21 24 56 | H N 28 AF | 2016 | 10 | 327 | 400.1 | 5.88 | 12.22 | 6.34 | |||
Show | 183040 | 14 57 28 -21 24 56 | BUG 4 AG | 2010 | 2 | 316 | 258.1 | 5.88 | 18.00 | 12.12 | |||
Show | 183039 | 14 57 27 -21 24 41 | H N 28 Ba,Bb | 2021 | 39 | 210 | 0.2 | 8.18 | 9.80 | 1.62 | Y | ||
Show | 183039 | 14 57 27 -21 24 41 | BUG 4 BG | 2010 | 2 | 317 | 234.4 | 8.18 | 18.00 | 9.82 |
Var name | KX Lib | Constellation | Libra | SAO | 183040 | HIP | 73184 | ||||
Tycho2 | 6180-00855-1 | HD | 131977 | HR | 5568 | GC | 20113 | ||||
ADS | 9446 | GL | Gl 570A | BD | BD-20 4125 | FK5 | 1391 | ||||
Distance | 5.84 | Distance ly | 19.05 |
Identifier | 14575-2125 |
coord_arcsec_2000 | 145728.00-212455.7 |
Period (P) | 6488.5537y | Periastron (T) | 2152.7634y | Semi-major axis (a) | 86.7648a | |||
Eccentricity (e) | 0.6598 | Inclination (i) | 80.9435° | Longitude of periastron (ω) | 185.0814° | |||
Node (Ω) | 134.1985° | Notes | n | Reference | Kpp2020f | |||
Equinox | Last observation | Grade | 5 | (1=Definitive, 9=Indet.) |
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st. |
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Measures: green=micrometric, blue=interferometric, purple=photographic |
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discov_num | notes | refcode |
H N 28 | AB: LDS 514. B is BD-20@4123. | |
AB: NLTT 38872/38871 | Chm2004 | |
Proper motion of A +1034.13 -1725.45, B +987.02 -1666.69. | ||
VLTI uniform disk diameter of A: 1.147 +/- 0.029 mas, | LTI2009 | |
VLTI limb-darkened disk diameter of A: 1.177 +/- 0.030 mas, | ||
R = 0.739 +/- 0.019 \rsun, Teff = 4597 +/- 101 K, | ||
M = 0.802 +/- 0.040 \msun. | ||
B is a spectroscopic binary, P = 308d. | ||
Statistically different parallax for the components indicates they are | ||
non-physical. | ||
Hipparcos triple solution together with A (= HIP 73184). P,T,e, | Duq1988 | |
omega, and q fixed from Duquennoy & Mayor (1988), cf orbit in | Mar1990 | |
Mariotti et al. (1990). Poor Hipparcos solution. | Sod1999 | |
Strand (1943) suspects a perturbation with P = 2.2y, a = 0".020, | Str1943 | |
and Omega = 30 deg. | ||
Hyperbolic orbit by Hopmann (1967). | Hop1967 | |
sigma = areal constant in the true orbit = 2.540 arcsec^2/yr | ||
q = periastron distance in the true orbit = 20".388 | ||
All hyperbolic orbits rejected from Fourth Orbit Catalog | Wor1983 | |
Pourbaix gives combined solution for this resolved SB2, yielding | ||
orbital parallaxes and component masses. | Pbx2000b | |
AF: Optical pair, based on study of relative motion of the components | ||
using the method of apparent motion parameters. | Kiy2008 | |
Ba,Bb: Erroneously entered as BC, although C component is a very wide | ||
companion. | ||
Ba,Bb: Combined solution (spectroscopic/visual/parallax) by Forveille | Frv1999 | |
at al. (1999) for this low-mass interferometric SB2. P = 308.884 +/- | ||
0.004 days, T0 = JD2450270.220 +/- 0.011. Accurate masses are | ||
determined for these M dwarfs, as well as J, H, K, and L magnitudes. | ||
1987.455, 1987.756, 1988.312, 1988.499: Vector separations from the 1D | ||
data are combined to give 2D theta and rho values for these 4 dates. | Mar1990 | |
AC, AD, AE: Rectilinear solutions by Mason & Hartkopf (2016). | Msn2016a | |
AF: Rectilinear solution by Hurowitz et al. (2014). | USN2014a |
refcode | metd | author | reference |
Chm2004 | E - | Chaname, J. & Gould, A. | 2004ApJ...601..289C |
Chm2004 | ApJ 601, 289, 2004 | ||
Chm2004 | (Photometry, coordinates, and astrometry from rNLTT. Astrometry from early | ||
Chm2004 | versions of 2MASS and UCAC, with date given only as "circa 2000". Measures | ||
Chm2004 | identical to discovery observations - predominantly close pairs - were assumed | ||
Chm2004 | not new observations, so not included in WDS. Similar concerns when primary and | ||
Chm2004 | secondary magnitudes or proper motions were the same.) | ||
Duq1988 | - | Duquennoy, A. & Mayor, M. | 1988A&A...200..135D |
Duq1988 | A&A 200, 135, 1988 | ||
Frv1999 | Si j | Forveille, T., Beuzit, J.-L., Delfosse, X., Segransan, D., Beck, F., Mayor, M., | 1999A&A...351..619F |
Frv1999 | +A | Perrier, C., Tokovinin, A., et al. | |
Frv1999 | +orb | A&A 351, 619, 1999 | |
Hop1967 | orb - | Hopmann, J. | 1967MiWie..13...49H |
Hop1967 | Mitt. Sternw. Wien 13, 49, 1967 | ||
Kiy2008 | - | Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S. | 2008SvAL...32..405K |
Kiy2008 | SvAL 34, 405, 2008 | ||
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 | . | |
Msn2016a | lin - | Mason, B.D. & Hartkopf, W.I. | 2016IAUDS.189....1M |
Msn2016a | Inf. Circ. 189, 1, 2016 | ||
Pbx2000b | orb - | Pourbaix, D. | 2000A&AS..145..215P |
Pbx2000b | A&AS 145, 215, 2000 | ||
Sod1999 | orb - | Soderhjelm, S. | 1999A&A...341..121S |
Sod1999 | A&A 341, 121, 1999 | ||
Str1943 | orb - | Strand, K.A. | 1943PASP...55...26S |
Str1943 | PASP 55, 26, 1943 | ||
USN2014a | lin - | Hurowitz, J.L., Hartkopf, W.I., & Mason, B.D. | 2014IAUDS.182....1H |
USN2014a | Inf. Circ. 182, 1, 2014 | ||
Wor1983 | - | Worley, C.E. & Heintz, W.D. | 1983PUSNO..24g...1W |
Wor1983 | Pub. USNO 24, Pt. 7, 1983 (Fourth Orbit Catalog) |
idgroup | discov | author |
1 | BUG | Burgasser, A.J., Kirkpatrick, J.D., Cutri, R.M., McCallon, H., Kopan, G., Gizis, |
1 | BUG | J.E., Liebert, J., Reid, I.N., et al. |
4 | BUG | Burgasser, A.J., Kirkpatrick, J.D., Reid, I.N., Brown, M.E., Miskey, C.L., & |
4 | BUG | Gizis, J.E. |
7 | BUG | Burgasser, A.J., McElwain, M.W., Kirkpatrick, J.D., Cruz, K.L., Tinney, C.G., & |
7 | BUG | Reid, I.N. |
10 | BUG | Burgasser, A.J., Kirkpatrick, J.D., Cruz, K.L. Reid, I.N., Leggett, S.K., Liebert, |
10 | BUG | J., Burrows, A., & Brown, M.E. |
23 | BUG | Burgasser, A.J., Luk, C., Dhital, S., Bardalez Gagliuffi, D., Nicholls, C.P., |
23 | BUG | Prato, L., West, A.A., & Lepine, S. |
35 | BUG | Aganze, Ch., Burgasser, A.J., Faherty, J.K., Choban, C., Escala, I., Lopez, M.A., |
35 | BUG | Jin, Y., Tamiya, T., Tallis, M., & Rockward, W. |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
14575-2125 | H N 28 | AB | 2002 | 155 | 306 | 25.1 | 5.88 | 8.18 | K5Ve M2V | NODP | 145727.99-212455.8 |
14575-2125 | H N 28 | AB | 2009 | 155 | 306 | 25.3 | 5.88 | 8.18 | K5Ve M2V | NODP | 145727.99-212455.8 |
14575-2125 | H N 28 | AB | 2011 | 155 | 305 | 25.6 | 5.88 | 8.18 | K5Ve M2V | NODP | 145728.00-212455.7 |
14575-2125 | H N 28 | AB | 2014 | 158 | 306 | 25.7 | 5.88 | 8.18 | K5Ve M2V | NODP | 145728.00-212455.7 |
14575-2125 | H N 28 | AB | 2018 | 160 | 306 | 25.0 | 5.88 | 8.18 | K5Ve+M2V | NO P | 145728.00-212455.7 |
14575-2125 | H N 28 | AB | 2020 | 161 | 307 | 26.2 | 5.88 | 8.18 | K5Ve+M2V | NO P | 145728.00-212455.7 |
Show | date | username | difficulty | sep | sep_sigma | pa | pa_sigma | delta_mag | # | notes |
Show | 12/07/16 | Robert | 25.00 | 0.00 | 307.00 | 0.00 | 2 |
Click on the map to see the double of your interest. Pass over with the mouse cursor to display the catalog designation. |
Click on the map to see the double of your interest. Pass over with the mouse cursor to display the catalog designation. |
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A | B | Bb | C | D | E | F | |
B | pa=305.0° sep=24.90" | ||||||
Bb | pa=304.6° sep=24.88" | pa=208.5° sep=0.19" | |||||
C | pa=326.1° sep=225.21" | pa=328.7° sep=202.17" | pa=328.7° sep=202.27" | ||||
D | pa=343.2° sep=292.55" | pa=346.4° sep=273.39" | pa=346.4° sep=273.53" | pa=23.7° sep=101.62" | |||
E | pa=320.7° sep=175.81" | pa=323.3° sep=151.98" | pa=323.3° sep=152.06" | pa=164.4° sep=52.84" | pa=190.5° sep=146.37" | ||
F | pa=328.5° sep=392.01" | pa=330.0° sep=369.28" | pa=330.0° sep=369.38" | pa=331.6° sep=167.23" | pa=294.2° sep=132.00" | pa=334.7° sep=219.07" | |
G | pa=317.8° sep=249.58" | pa=319.2° sep=225.36" | pa=319.3° sep=225.43" | pa=267.3° sep=42.02" | pa=221.1° sep=126.04" | pa=311.0° sep=74.52" | pa=165.8° sep=153.72" |
Name | KX Lib | Coord arcsec 2000 | 145728.00-212455.7 | Mag | 5.88 | Spectral class | K5Ve (yellow-orange) | ||||
PmRA | 103.00 | PmDE | -173.0 | SAO | 183040 | HIP | 73184 | ||||
Tycho2 | 6180-00855-1 | HD | 131977 | HR | 5568 | GC | 20113 | ||||
BD | BD-20 4125 | FK5 | 1391 |
Tycho2 | 6180-00855-1 | Pflag | RAmdeg | 224.36666641 | DEmdeg | -21.41549841 | |||||
PmRA | 1035.7 | PmDE | -1734.9 | E RAmdeg | 4 | E DEmdeg | 5 | ||||
E pmRA | 1.8 | E pmDE | 1.9 | EpRAm | 1991.72 | EpDEm | 1991.53 | ||||
Num | 8 | Q RAmdeg | 1.5 | Q DEmdeg | 1.4 | Q pmRA | 1.4 | ||||
Q pmDE | 1.4 | BTmag | 7.163 | E BTmag | 0.016 | VTmag | 5.880 | ||||
E VTmag | 0.010 | Prox | 242 | TYC | T | HIP | 73184 | ||||
CCDM | A | RAdeg | 224.36412972 | DEdeg | -21.41145972 | EpRA 1990 | 1.79 | ||||
EpDE 1990 | 1.62 | E RAdeg | 3.8 | E DEdeg | 4.5 | Posflg | |||||
Corr | 0.1 |
SAO | 183040 | DelFlag | RA1950 | PmRA1950 | 0.0745 | ||||||
DE1950 | PmDE1950 | -1.74 | Vmag | 6 | SpType | K5 | |||||
Double code | Source | 74 | CatNum | 1391 | DM | BD-20 4125 | |||||
DMcomp | BDsup | HD | 131977 | M HD | 0 | ||||||
GC | 20113 | RA1950rad | 3.90316993 | DE1950rad | -0.36985655 | PmRA2000 | 0.0751 | ||||
PmDE2000 | -1.732 |
Catalog | H | HIP | 73184 | Proxy | RAhms | 14 57 27.35 | |||||
DEdms | -21 24 40.6 | Vmag | 5.72 | VarFlag | R Vmag | G | |||||
RAdeg | 224.364 | DEdeg | -21.4113 | AstroRef | A | Plx | 169.32 | ||||
CCDM | 14574-2124 | N CCDM | I | Nsys | 2 | Ncomp | 1 | ||||
MultFlag | C | Source | P | Qual | D | M HIP | |||||
Theta | Rho | HD | 131977 | BD | BD-20 4125 | ||||||
CD | CP | Dm number | -20 4125 | VIred | 1.23 | ||||||
SpType | K4V | R SpType | Coord arcsec 2000 | 145727.35-212440.6 |
HIP | 73184 | Sn | 95 | So | 3 | Nc | 1 | ||||
RArad | 3.9158899154 | DErad | -0.3736973547 | Plx | 171.22 | PmRA | 1037.06 | ||||
PmDE | -1725.87 | E RArad | 0.78 | E DErad | 0.51 | E Plx | 0.94 | ||||
E pmRA | 1.05 | E pmDE | 0.72 | Hpmag | 5.877 | E Hpmag | 0.0293 | ||||
SHp | 0.011 | VA | 0 | BV | 1.024 | E BV | 0.015 | ||||
VI | 1.23 |
Coord arcsec 2000 | 145726.54-212441.4 | Coord calc | 145726.54-212441.4 | Mag | 8.18 | Spectral class | K5V (yellow-orange) | ||||
PmRA | 99.00 | PmDE | -167.0 | SAO | 183039 | HIP | 73182 | ||||
Tycho2 | 6180-01230-1 | HD | 131976 | GC | 20111 | BD | BD-20 4123 | ||||
Calc delta mag | 2.3 |
SAO | 183039 | DelFlag | RA1950 | PmRA1950 | 0.0696 | ||||||
DE1950 | PmDE1950 | -1.668 | Vmag | 8.9 | SpType | K5 | |||||
Double code | Source | 70 | CatNum | 20111 | DM | BD-20 4123 | |||||
DMcomp | BDsup | HD | 131976 | M HD | 0 | ||||||
GC | 20111 | RA1950rad | 3.90306856 | DE1950rad | -0.36980554 | PmRA2000 | 0.0702 | ||||
PmDE2000 | -1.66 |
Catalog | H | HIP | 73182 | Proxy | RAhms | 14 57 25.92 | |||||
DEdms | -21 24 26.9 | Vmag | 8.01 | VarFlag | R Vmag | G | |||||
RAdeg | 224.358 | DEdeg | -21.4075 | AstroRef | B | Plx | 133.63 | ||||
CCDM | 14574-2124 | N CCDM | I | Nsys | 2 | Ncomp | 1 | ||||
MultFlag | C | Source | I | Qual | D | M HIP | |||||
Theta | Rho | HD | 131976 | BD | BD-20 4123 | ||||||
CD | CP | Dm number | -20 4123 | VIred | 2.22 | ||||||
SpType | K5V | R SpType | Coord arcsec 2000 | 145725.92-212426.9 |
HIP | 73182 | Sn | 95 | So | 3 | Nc | 1 | ||||
RArad | 3.9157865805 | DErad | -0.3736308626 | Plx | 168.77 | PmRA | 961.78 | ||||
PmDE | -1677.83 | E RArad | 17.8 | E DErad | 11.95 | E Plx | 21.54 | ||||
E pmRA | 20.68 | E pmDE | 16.08 | Hpmag | 8.1824 | E Hpmag | 0.1842 | ||||
SHp | 0 | VA | 0 | BV | 1.519 | E BV | 0.025 | ||||
VI | 2.22 |
Coord arcsec 2000 | 145726.53-212441.6 | Mag | 9.8 | Calc delta mag | 3.92 | Calc coord | yes |
Coord arcsec 2000 | 145719.01-212148.7 | Mag | 14 | PmRA | 0.00 | PmDE | -1.0 | ||||
Calc delta mag | 8.12 | Calc coord | yes |
Coord arcsec 2000 | 145721.93-212015.7 | Mag | 13.85 | PmRA | -3.00 | PmDE | 0.0 | ||||
Calc delta mag | 7.97 | Calc coord | yes |
Coord arcsec 2000 | 145720.03-212239.6 | Mag | 13.12 | PmRA | -2.00 | PmDE | 0.0 | ||||
Calc delta mag | 7.24 | Calc coord | yes |
Coord arcsec 2000 | 145713.32-211921.6 | Mag | 12.22 | PmRA | -2.00 | PmDE | 0.0 | ||||
Calc delta mag | 6.34 | Calc coord | yes |
Coord arcsec 2000 | 145716.01-212150.7 | Mag | 18 | Calc delta mag | 12.12 | Calc coord | yes |