00021-6817 I 699 AB (HD 224953)

 
 
00h 02m 08.72s -68 16' 50.6" P.A. 131.00 sep 4.2 mag 9.71,10.56 Sp K5/M0V dist. 15.33 pc (50.01 l.y.)
 
 
Coord 2000 00021-6817 Discov num I   699 Comp AB Coord arcsec 2000 00 02 08.72 -68 16 50.6
Date first 1907 Date last 2015 Obs 15
Pa first 85 Pa last 130.8 P.A. Now (θ) 130.8°
Sep first 1.0 Sep last 4.219 Sep. Now (ρ) 4.219"
Mag pri 9.71 Mag sec 10.56 delta mag (ΔM) 0.85 Spectral class K5/M0V (yellow-orange)
Pri motion ra +208 Sec motion ra +207
Pri motion dec -232 Sec motion dec -232
Notes O (Orbital solution)
rPM=0.003 (< 0.3, Physical double)
This double is physical.
 
 
00021-6817 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 224953 00 02 09 -68 16 51 I 699 AB 2015 15 131 4.2 9.71 10.56 0.85 Y <===
Show 00 02 09 -68 16 51 BAU 2 AC 2000 3 56 46.5 9.71 15.22 5.51
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 224953 Constellation Tucana HIP 169 Tycho2 9134-01714-1
Gaia DR2 4706564427272810624 HD 224953 GL GJ 1294A CD CD-68 2373
CP CP-68 3594 Distance 15.33 Distance ly 50.01
 
 
ORBITAL ELEMENTS
 
 
Period (P)290y Periastron (T)1884.54y Semi-major axis (a)2.738a
Eccentricity (e)0.65 Inclination (i)57.7° Longitude of periastron (ω)207.1°
Node (Ω)117.8° Notes ReferenceZir2013d
Equinox2000 Last observation2000 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 126.9 4.252
2001 127.1 4.255
2002 127.3 4.258
2003 127.5 4.260
2004 127.7 4.262
2005 127.9 4.263
2006 128.1 4.264
2007 128.3 4.264
2008 128.5 4.265
2009 128.8 4.264
2010 129.0 4.263
2011 129.2 4.262
2012 129.4 4.261
2013 129.6 4.259
2014 129.8 4.256
2015 130.0 4.254
2016 130.2 4.250
2017 130.4 4.247
2018 130.6 4.243
2019 130.8 4.239
2020 131.1 4.234
2021 131.3 4.229
2022 131.5 4.223
2023 131.7 4.217
2024 131.9 4.211
2025 132.1 4.204
2026 132.3 4.197
2027 132.5 4.190
2028 132.8 4.182
2029 133.0 4.174
2030 133.2 4.165


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



 
 


wds00021-6817a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic