02202+2949 A   961

 
 
02H 20M 10.41S +29 48' 42.2" P.A. 258.8 SEP 0.24 MAG 9.31,8.94 SP F5 DIST. 103.52 PC (337.68 L.Y.)
 
 
Coord 2000
02202+2949
Discov num
A   961
Comp
Coord arcsec 2000
02 20 10.41 +29 48 42.2
Date first
1905
Date last
2007
Obs
57
Pa first
57
Pa last
277
P.A. Now (θ)
258.8°
Sep first
0.2
Sep last
0.4
Sep. Now (ρ)
0.24"
Mag pri
9.31
Mag sec
8.94
delta mag (ΔM)
0.37
Spectral class
F5 (yellow-white)
Pri motion ra
-011
Sec motion ra
-011
Pri motion dec
-014
Sec motion dec
-014
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Triangulum
SAO
75289
HIP
10892
Tycho2
1777-00367-1
HD
14394
ADS
1780
BD
BD+29 393
Distance
103.52
Distance ly
337.68
last precise pa
277.2
last precise sep
0.358
 
 
ORBITAL ELEMENTS
 
 
Period (P)143.1y± 5.6 Periastron (T)2038.1y± 5.7 Semi-major axis (a)0.294a± 0.057
Eccentricity (e)0.571± 0.095 Inclination (i)145.4°± 3.9 Longitude of periastron (ω)15.6°± 8.5
Node (Ω)150°± 5.8 Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2003
label rho theta
2000 0.351 288.4
2001 0.345 287.2
2002 0.339 286.0
2003 0.333 284.7
2004 0.327 283.3
2005 0.321 281.9
2006 0.314 280.4
2007 0.308 278.9
2008 0.301 277.3
2009 0.294 275.7
2010 0.287 273.9
2011 0.280 272.1
2012 0.273 270.2
2013 0.265 268.2
2014 0.258 266.0
2015 0.251 263.7
2016 0.243 261.3
2017 0.236 258.8
2018 0.228 256.0
2019 0.221 253.1
2020 0.213 250.0
2021 0.206 246.6
2022 0.198 243.0
2023 0.191 239.1
2024 0.184 235.0
2025 0.177 230.5
2026 0.171 225.6
2027 0.165 220.4
2028 0.159 214.8
2029 0.154 208.8
2030 0.149 202.4

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