14514+1906 STF 1888 AB (Xi Boo)

 
 
14h 51m 23.38s +19 06' 01.7" P.A. 296.00 sep 5.0 mag 4.76,6.95 Sp G8V+K5V dist. 6.71 pc (21.89 l.y.)
 
 
Coord 2000 14514+1906 Discov num STF1888 Comp AB Coord arcsec 2000 14 51 23.38 +19 06 01.7
Date first 1780 Date last 2021 Obs 1468
Pa first 24 Pa last 296 P.A. Now (θ) 292.9°
Sep first 3.4 Sep last 5.01 Sep. Now (ρ) 5.085"
Mag pri 4.76 Mag sec 6.95 delta mag (ΔM) 2.19 Spectral class G8V+K5V (yellow/yellow-orange)
Pri motion ra +153 Sec motion ra +090
Pri motion dec -072 Sec motion dec -147
Notes N O (See Notes, Orbital solution)
rPM=0.568
This double is physical.
 
 
14514+1906 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Xi Boo 101250 14 51 23 +19 06 02 STF 1888 AB 2021 1468 296 5.0 4.76 6.95 2.19 Y <===
Show 101250 14 51 23 +19 06 02 STF 1888 AC 2015 25 340 71.3 4.76 13.83 9.07
Show 101250 14 51 23 +19 06 02 STF 1888 AD 2015 24 286 160.8 4.76 11.73 6.97
Show 101250 14 51 23 +19 06 02 ARN 11 AE 2015 14 98 271.5 4.76 8.65 3.89
Show 101250 14 51 23 +19 06 02 ARN 12 AF 2020 14 39 335.4 4.76 9.20 4.44
Show 14 51 23 +19 06 07 STF 1888 BC 2016 9 343 67.0 6.95 13.83 6.88
Show 14 51 23 +19 06 07 STF 1888 BE 2016 15 99 273.1 6.95 8.65 1.70
Sextuple system
6 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Xi Boo Constellation Bootes SAO 101250 HIP 72659
Tycho2 1481-00722-1 Gaia DR2 1237090738916392704 HD 131156 HR 5544
GC 19991 ADS 9413 GL Gl 566A BD BD+19 2870
Bayer Xi Bootis Bayer name Xi Boo Flamsteed 37 Bootis Flamsteed name 37 Boo
Distance 6.71 Distance ly 21.89 Bayer greek ξ Boo
 
 
ORBITAL ELEMENTS
 
 
Period (P)152.9614y± 0.1204 Periastron (T)1909.6213y± 0.0655 Semi-major axis (a)4.93454a± 0.00463
Eccentricity (e)0.51385± 0.00079 Inclination (i)140.453°± 0.103 Longitude of periastron (ω)25.492°± 0.518
Node (Ω)168.795°± 0.329 Notesn ReferenceIzm2019
Equinox Last observation2015 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 317.8 6.707
2001 316.9 6.657
2002 316.1 6.605
2003 315.2 6.551
2004 314.3 6.494
2005 313.4 6.436
2006 312.5 6.376
2007 311.5 6.314
2008 310.6 6.249
2009 309.6 6.184
2010 308.6 6.116
2011 307.6 6.046
2012 306.5 5.975
2013 305.4 5.902
2014 304.3 5.827
2015 303.2 5.750
2016 302.0 5.672
2017 300.8 5.593
2018 299.6 5.512
2019 298.4 5.429
2020 297.0 5.345
2021 295.7 5.260
2022 294.3 5.173
2023 292.9 5.085
2024 291.4 4.996
2025 289.8 4.907
2026 288.2 4.816
2027 286.6 4.724
2028 284.8 4.632
2029 283.0 4.540
2030 281.1 4.447


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



 
 


wds14514%2B1906h.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic