14142-0831 BU  939AB

 
 
14h 14m 09.09s -08 31' 06.5" P.A. 36.1 sep 0.51 mag 9.38,8.98 Sp F2 dist. 132.63 pc (432.64 l.y.)
 
 
Coord 2000
14142-0831
Discov num
BU  939
Comp
AB
Coord arcsec 2000
14 14 09.09 -08 31 06.5
Date first
1879
Date last
2008
Obs
46
Pa first
156
Pa last
39
P.A. Now (θ)
36.1°
Sep first
0.7
Sep last
0.5
Sep. Now (ρ)
0.51"
Mag pri
9.38
Mag sec
8.98
delta mag (ΔM)
0.4
Spectral class
F2 (yellow-white)
Pri motion ra
-007
Sec motion ra
-007
Pri motion dec
-017
Sec motion dec
-017
Notes
O (Orbital solution)
This double is physical.
 
 
14142-0831 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 14142-0831 BU 939 AB 1879 2008 46 36 0.5 9.38 8.98 0.40 Y <===
Show 14142-0831 BU 939 AB,C 1879 2004 14 282 87.9 9.38 10.16 0.78
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
38.6
Precise sep
0.481
Constellation
Virgo
HIP
69541
Tycho2
5555-00425-1
HD
124497
ADS
9170
BD
BD-07 3799
Distance
132.63
Distance ly
432.64
last precise pa
38.6
last precise sep
0.481
 
 
ORBITAL ELEMENTS
 
 
Period (P)602.296y Periastron (T)2398.22y Semi-major axis (a)0.8016a
Eccentricity (e)0.1379 Inclination (i)116.1° Longitude of periastron (ω)332.39°
Node (Ω)172.76° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation1990
label rho theta
2000 0.443 48.7
2001 0.447 47.9
2002 0.450 47.0
2003 0.454 46.2
2004 0.458 45.4
2005 0.462 44.6
2006 0.466 43.8
2007 0.470 43.1
2008 0.474 42.3
2009 0.478 41.6
2010 0.483 40.9
2011 0.487 40.2
2012 0.491 39.5
2013 0.495 38.8
2014 0.500 38.1
2015 0.504 37.4
2016 0.508 36.8
2017 0.513 36.1
2018 0.517 35.5
2019 0.522 34.9
2020 0.526 34.3
2021 0.531 33.7
2022 0.535 33.1
2023 0.540 32.5
2024 0.544 31.9
2025 0.549 31.4
2026 0.553 30.8
2027 0.558 30.3
2028 0.562 29.7
2029 0.567 29.2
2030 0.571 28.7

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.

grafico orbita





wds14142-0831a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
14142-0831 BU 939 AB 2004 44 43 0.5 9.38 8.98 F2 NOD 141409.09-083106.5
14142-0831 BU 939 AB 2008 46 39 0.5 9.38 8.98 F2 NOD 141409.09-083106.5

If you need more information about this double, apply for a data request form to the WDS.