10553-3530 I 1206 AB

 
 
10h 55m 19.86s -35° 29' 49.8" P.A. 79.00 sep 0.2 mag 8.60,9.10 Sp A0V dist. 271.74 pc (886.42 l.y.)
 
 
Coord 2000 10553-3530 Discov num I  1206 Comp AB Coord arcsec 2000 10 55 19.86 -35 29 49.8
Date first 1926 Date last 2021 Obs 11
Pa first 163 Pa last 78.9 P.A. Now (θ) 78.9°
Sep first 0.2 Sep last 0.162 Sep. Now (ρ) 0.162"
Mag pri 8.60 Mag sec 9.10 delta mag (ΔM) 0.5 Spectral class A0V (white)
Pri motion ra +006 Sec motion ra
Pri motion dec -003 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
10553-3530 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 201899 10 55 20 -35 29 50 I 1206 AB 2021 11 79 0.2 8.60 9.10 0.50 Y <===
Show HD 94693 201899 10 55 20 -35 29 50 WHC 31 AB,C 2017 10 168 33.9 8.05 9.50 1.45
Triple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Antlia SAO 201899 HIP 53399 Tycho2 7207-02018-1
Gaia DR2 5401332527647067776 HD 94693 CD CD-34 7078 CP CP-34 4388
Distance 271.74 Distance ly 886.42
 
 
ORBITAL ELEMENTS
 
 
Period (P)400y Periastron (T)2273.5y Semi-major axis (a)0.325a
Eccentricity (e)0.4 Inclination (i)110.4° Longitude of periastron (ω)121.3°
Node (Ω)11.8° Notes ReferenceTok2021f
Equinox Last observation2021 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 107.1 0.144
2001 105.6 0.144
2002 104.1 0.144
2003 102.7 0.144
2004 101.2 0.145
2005 99.8 0.145
2006 98.3 0.146
2007 96.9 0.146
2008 95.5 0.147
2009 94.1 0.148
2010 92.7 0.149
2011 91.4 0.150
2012 90.0 0.151
2013 88.7 0.152
2014 87.4 0.153
2015 86.1 0.154
2016 84.8 0.155
2017 83.5 0.156
2018 82.3 0.158
2019 81.1 0.159
2020 79.9 0.161
2021 78.7 0.162
2022 77.6 0.164
2023 76.5 0.165
2024 75.4 0.167
2025 74.3 0.168
2026 73.2 0.170
2027 72.2 0.172
2028 71.2 0.174
2029 70.2 0.176
2030 69.2 0.177


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



 
 


wds10553-3530a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic