16085-1006 BU 949 (HD 144892)

 
 
16h 08m 27.25s -10° 06' 08.4" P.A. 162.00 sep 0.1 mag 7.08,8.19 Sp F7V dist. 64.68 pc (210.99 l.y.)
 
 
Coord 2000 16085-1006 Discov num BU  949 Comp Coord arcsec 2000 16 08 27.25 -10 06 08.4
Date first 1880 Date last 2023 Obs 172
Pa first 198 Pa last 162.2 P.A. Now (θ) 162.2°
Sep first 0.6 Sep last 0.051 Sep. Now (ρ) 0.051"
Mag pri 7.08 Mag sec 8.19 delta mag (ΔM) 1.11 Spectral class F7V (yellow-white)
Pri motion ra +036 Sec motion ra +036
Pri motion dec -110 Sec motion dec -110
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 144892 Constellation Scorpius SAO 140981 HIP 79071
Tycho2 5616-01295-1 Gaia DR2 4343641477473457664 HD 144892 ADS 9932
BD BD-09 4305 Distance 64.68 Distance ly 210.99
 
 
ORBITAL ELEMENTS
 
 
Period (P)56.33y± 0.2 Periastron (T)2018.34y± 0.35 Semi-major axis (a)0.289a± 0.003
Eccentricity (e)0.774± 0.016 Inclination (i)82.3°± 0.5 Longitude of periastron (ω)157.8°± 2.9
Node (Ω)198.1°± 0.5 Notesn ReferenceTok2015c
Equinox2000 Last observation2014 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 196.9 0.464
2001 197.1 0.456
2002 197.3 0.446
2003 197.6 0.436
2004 197.8 0.423
2005 198.1 0.410
2006 198.4 0.394
2007 198.7 0.376
2008 199.0 0.356
2009 199.4 0.334
2010 199.8 0.310
2011 200.3 0.282
2012 201.0 0.251
2013 201.8 0.217
2014 203.0 0.177
2015 204.9 0.132
2016 209.1 0.080
2017 235.1 0.022
2018 9.5 0.046
2019 21.7 0.069
2020 34.4 0.049
2021 76.5 0.024
2022 151.5 0.034
2023 172.2 0.065
2024 179.4 0.097
2025 183.0 0.128
2026 185.3 0.157
2027 186.9 0.185
2028 188.0 0.211
2029 188.9 0.236
2030 189.7 0.259
2031 190.3 0.281
2032 190.8 0.302
2033 191.3 0.322
2034 191.7 0.340
2035 192.1 0.357
2036 192.4 0.373
2037 192.7 0.388
2038 193.0 0.401
2039 193.3 0.414
2040 193.5 0.426
2041 193.8 0.436
2042 194.0 0.446
2043 194.2 0.454
2044 194.5 0.461
2045 194.7 0.468
2046 194.9 0.473
2047 195.1 0.477
2048 195.3 0.481
2049 195.5 0.483
2050 195.7 0.484


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds16085-1006b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic