15290-2852 BU 1114AB

 
 
15H 28M 58.69S -28 52' 00.5" P.A. 316.7 SEP 0.23 MAG 6.98,7.76 SP F6IV DIST. 58.62 PC (191.22 L.Y.)
 
 
Coord 2000
15290-2852
Discov num
BU 1114
Comp
AB
Coord arcsec 2000
15 28 58.69 -28 52 00.5
Date first
1889
Date last
2014
Obs
25
Pa first
326
Pa last
317
P.A. Now (θ)
316.7°
Sep first
0.7
Sep last
0.3
Sep. Now (ρ)
0.23"
Mag pri
6.98
Mag sec
7.76
delta mag (ΔM)
0.78
Spectral class
F6IV (yellow-white)
Pri motion ra
-030
Sec motion ra
-030
Pri motion dec
-076
Sec motion dec
-076
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
15290-2852 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 183506 15290-2852 BU 1114 AB 1889 2014 25 317 0.2 6.98 7.76 0.78 Y <===
Show 183506 15290-2852 HJ 4774 AB,C 1834 2016 20 11 9.7 6.98 9.63 2.65
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Libra
SAO
183506
HIP
75790
Tycho2
6775-01270-1
HD
137798
ADS
9659
CD
CD-2811366
CP
CP-28 5130
Distance
58.62
Distance ly
191.22
last precise pa
317.3
last precise sep
0.317
 
 
ORBITAL ELEMENTS
 
 
Period (P)205y Periastron (T)2047.16y± 4.45 Semi-major axis (a)0.7219a± 0.0272
Eccentricity (e)0.498± 0.045 Inclination (i)90.6°± 0.3 Longitude of periastron (ω)359.5°± 5.4
Node (Ω)138.3°± 0.5 Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation
label rho theta
2000 0.608 317.7
2001 0.590 317.7
2002 0.572 317.7
2003 0.553 317.6
2004 0.534 317.6
2005 0.514 317.6
2006 0.495 317.6
2007 0.474 317.5
2008 0.454 317.5
2009 0.433 317.4
2010 0.412 317.4
2011 0.390 317.3
2012 0.369 317.3
2013 0.346 317.2
2014 0.324 317.1
2015 0.301 317.1
2016 0.278 317.0
2017 0.254 316.8
2018 0.230 316.7
2019 0.206 316.5
2020 0.182 316.3
2021 0.157 316.0
2022 0.132 315.6
2023 0.107 315.0
2024 0.082 314.1
2025 0.056 312.3
2026 0.031 307.5
2027 0.008 269.3
2028 0.021 153.3
2029 0.047 145.0
2030 0.072 142.5

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