15055-0701 BU  119AB

 
 
15H 05M 31.91S -07 00' 48.8" P.A. 274.1 SEP 2.32 MAG 8.09,8.76 SP G0 DIST. 47.6 PC (155.27 L.Y.)
 
 
Coord 2000
15055-0701
Discov num
BU  119
Comp
AB
Coord arcsec 2000
15 05 31.91 -07 00 48.8
Date first
1873
Date last
2016
Obs
85
Pa first
300
Pa last
274
P.A. Now (θ)
274.1°
Sep first
1.0
Sep last
2.4
Sep. Now (ρ)
2.32"
Mag pri
8.09
Mag sec
8.76
delta mag (ΔM)
0.67
Spectral class
G0 (yellow)
Pri motion ra
-225
Sec motion ra
-227
Pri motion dec
-005
Sec motion dec
-014
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
15055-0701 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 15055-0701 BU 119 AB 1873 2016 85 274 2.3 8.09 8.76 0.67 Y <===
Show 15055-0701 BU 119 AC 1893 2015 7 98 77.7 8.09 12.64 4.55
Show 15055-0701 TOK 587 AD 1980 2000 5 290 999.9 7.56 7.72 0.16
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Libra
HIP
73846
Tycho2
5012-00570-1
HD
133584
ADS
9497
BD
BD-06 4130
Distance
47.6
Distance ly
155.27
last precise pa
273.9
last precise sep
2.359
 
 
ORBITAL ELEMENTS
 
 
Period (P)1348.4y± 373 Periastron (T)1361.4y± 250.8 Semi-major axis (a)3.23a± 0.62
Eccentricity (e)0.35± 0.13 Inclination (i)110.7°± 3.9 Longitude of periastron (ω)117.5°± 18.6
Node (Ω)237°± 4.3 Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation
label rho theta
2000 2.194 277.3
2001 2.201 277.1
2002 2.208 276.9
2003 2.215 276.8
2004 2.221 276.6
2005 2.228 276.4
2006 2.235 276.2
2007 2.241 276.0
2008 2.248 275.8
2009 2.255 275.6
2010 2.262 275.5
2011 2.268 275.3
2012 2.275 275.1
2013 2.282 274.9
2014 2.288 274.8
2015 2.295 274.6
2016 2.302 274.4
2017 2.309 274.2
2018 2.315 274.1
2019 2.322 273.9
2020 2.329 273.7
2021 2.336 273.5
2022 2.342 273.4
2023 2.349 273.2
2024 2.356 273.0
2025 2.363 272.9
2026 2.369 272.7
2027 2.376 272.5
2028 2.383 272.4
2029 2.389 272.2
2030 2.396 272.1

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

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic