03496-0220 YR   23

 
 
03H 49M 38.68S -02 19' 42.5" P.A. 299 SEP 0.38 MAG 7.73,8.29 SP G0 DIST. 50.94 PC (166.17 L.Y.)
 
 
Coord 2000
03496-0220
Discov num
YR   23
Comp
Coord arcsec 2000
03 49 38.68 -02 19 42.5
Date first
2000
Date last
2014
Obs
20
Pa first
10
Pa last
306
P.A. Now (θ)
299°
Sep first
0.3
Sep last
0.4
Sep. Now (ρ)
0.38"
Mag pri
7.73
Mag sec
8.29
delta mag (ΔM)
0.56
Spectral class
G0 (yellow)
Pri motion ra
-062
Sec motion ra
Pri motion dec
-041
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Eridanus
HIP
17895
Tycho2
4717-00812-1
HD
24031
BD
BD-02 726
Distance
50.94
Distance ly
166.17
last precise pa
306.1
last precise sep
0.357
 
 
ORBITAL ELEMENTS
 
 
Period (P)54y± 29 Periastron (T)1992.8y± 3.4 Semi-major axis (a)0.49a± 0.12
Eccentricity (e)0.75± 0.012 Inclination (i)114.5°± 1.4 Longitude of periastron (ω)105°± 12
Node (Ω)234°± 23 Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2012
label rho theta
2000 0.284 13.3
2001 0.287 8.0
2002 0.289 2.7
2003 0.291 357.5
2004 0.294 352.3
2005 0.297 347.3
2006 0.300 342.4
2007 0.305 337.6
2008 0.310 332.9
2009 0.316 328.5
2010 0.322 324.1
2011 0.330 320.0
2012 0.337 316.1
2013 0.346 312.3
2014 0.355 308.7
2015 0.364 305.3
2016 0.373 302.1
2017 0.382 299.0
2018 0.392 296.1
2019 0.401 293.3
2020 0.411 290.6
2021 0.420 288.1
2022 0.429 285.6
2023 0.438 283.3
2024 0.446 281.0
2025 0.453 278.9
2026 0.460 276.8
2027 0.467 274.7
2028 0.472 272.7
2029 0.477 270.8
2030 0.480 268.9

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