00021-6817 I   699AB

 
 
00H 02M 08.72S -68 16' 50.6" P.A. 130.4 SEP 4.25 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
2000
Obs
13
Pa first
85
Pa last
126
P.A. Now (θ)
130.4°
Sep first
1.0
Sep last
4.4
Sep. Now (ρ)
4.25"
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_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 00021-6817 I 699 AB 1907 2000 13 130 4.2 9.71 10.56 0.85 Y <===
Show 00021-6817 BAU 2 AC 1993 2000 3 56 46.5 9.71 15.22 5.51
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Tucana
HIP
169
Tycho2
9134-01714-1
HD
224953
GL
GJ 1294A
CD
CD-68 2373
CP
CP-68 3594
Distance
15.33
Distance ly
50.01
last precise pa
125.9
last precise sep
4.36
 
 
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° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2000
label rho theta
2000 4.252 126.9
2001 4.255 127.1
2002 4.258 127.3
2003 4.260 127.5
2004 4.262 127.7
2005 4.263 127.9
2006 4.264 128.1
2007 4.264 128.3
2008 4.265 128.5
2009 4.264 128.8
2010 4.263 129.0
2011 4.262 129.2
2012 4.261 129.4
2013 4.259 129.6
2014 4.256 129.8
2015 4.254 130.0
2016 4.250 130.2
2017 4.247 130.4
2018 4.243 130.6
2019 4.239 130.8
2020 4.234 131.1
2021 4.229 131.3
2022 4.223 131.5
2023 4.217 131.7
2024 4.211 131.9
2025 4.204 132.1
2026 4.197 132.3
2027 4.190 132.5
2028 4.182 132.8
2029 4.174 133.0
2030 4.165 133.2

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