02262+3428 HDS 318

 
 
02H 26M 09.51S +34 28' 10.5" P.A. 130.8 SEP 0.07 MAG 8.70,9.14 SP G8+G9 DIST. 41.14 PC (134.2 L.Y.)
 
 
Coord 2000
02262+3428
Discov num
HDS 318
Comp
Coord arcsec 2000
02 26 09.51 +34 28 10.5
Date first
1991
Date last
2012
Obs
27
Pa first
177
Pa last
203
P.A. Now (θ)
130.8°
Sep first
0.1
Sep last
0.1
Sep. Now (ρ)
0.07"
Mag pri
8.70
Mag sec
9.14
delta mag (ΔM)
0.44
Spectral class
G8+G9 (yellow/yellow)
Pri motion ra
+117
Sec motion ra
Pri motion dec
-051
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Triangulum
SAO
55552
HIP
11352
Tycho2
2331-00593-1
HD
15013
BD
BD+33 429
Distance
41.14
Distance ly
134.2
last precise pa
202.7
last precise sep
0.124
 
 
ORBITAL ELEMENTS
 
 
Period (P)6.85y± 0.05 Periastron (T)1995.12y± 0.06 Semi-major axis (a)0.1a± 0.001
Eccentricity (e)0.284± 0.006 Inclination (i)50°± 0.6 Longitude of periastron (ω)4.4°± 1.6
Node (Ω)15.1°± 0.9 Note Grade2(1=Definitive, 9=Indet.)
Equinox2000 Last observation2003
label rho theta
2000 0.090 235.4
2001 0.059 304.2
2002 0.071 19.8
2003 0.058 105.2
2004 0.099 165.3
2005 0.127 190.1
2006 0.120 210.5
2007 0.083 241.9
2008 0.060 318.2
2009 0.069 29.6
2010 0.061 118.9
2011 0.105 170.0
2012 0.128 193.1
2013 0.116 214.0
2014 0.077 249.5
2015 0.062 331.3
2016 0.066 40.2
2017 0.067 130.8
2018 0.110 174.2
2019 0.128 196.1
2020 0.111 217.7
2021 0.070 258.5
2022 0.065 343.2
2023 0.062 52.0
2024 0.073 140.7
2025 0.115 178.1
2026 0.128 199.0
2027 0.106 221.8
2028 0.065 269.1
2029 0.069 354.0
2030 0.059 65.3

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