05103-0736 A   484

 
 
05h 10m 20.70s -07 35' 37.2" P.A. 286 sep 0.07 mag 8.18,8.38 Sp F8 dist. 57.41 pc (187.27 l.y.)
 
 
Coord 2000
05103-0736
Discov num
A   484
Comp
Coord arcsec 2000
05 10 20.70 -07 35 37.2
Date first
1903
Date last
2017
Obs
32
Pa first
298
Pa last
291
P.A. Now (θ)
286°
Sep first
0.2
Sep last
0.1
Sep. Now (ρ)
0.07"
Mag pri
8.18
Mag sec
8.38
delta mag (ΔM)
0.2
Spectral class
F8 (yellow-white)
Pri motion ra
-041
Sec motion ra
Pri motion dec
-176
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
290.9
Precise sep
0.114
Cdsa2 id
A 484
Constellation
Eridanus
HIP
24076
Tycho2
5330-00131-1
HD
33507
ADS
3748
BD
BD-07 993
Ra deg
5.172416666666667
De deg
-7.593666666666667
Distance
57.41
Distance ly
187.27
last precise pa
290.9
last precise sep
0.114
 
 
ORBITAL ELEMENTS
 
 
Period (P)18.9y± 0.07 Periastron (T)1999.74y± 0.39 Semi-major axis (a)0.1719a± 0.0183
Eccentricity (e)0.817± 0.031 Inclination (i)104.2°± 2.2 Longitude of periastron (ω)123.2°± 6.2
Node (Ω)290.3°± 1.2 Note Grade2(1=Definitive, 9=Indet.)
Equinox2000 Last observation
label rho theta
2000 0.043 107.6
2001 0.045 73.1
2002 0.043 28.8
2003 0.057 354.7
2004 0.080 337.2
2005 0.104 327.6
2006 0.126 321.6
2007 0.147 317.3
2008 0.165 314.0
2009 0.180 311.3
2010 0.192 309.0
2011 0.201 307.0
2012 0.207 305.1
2013 0.208 303.2
2014 0.203 301.3
2015 0.192 299.3
2016 0.172 296.9
2017 0.136 293.6
2018 0.071 286.0
2019 0.047 103.7
2020 0.044 69.2
2021 0.043 24.5
2022 0.060 352.3
2023 0.082 336.0
2024 0.106 326.9
2025 0.128 321.1
2026 0.149 316.9
2027 0.166 313.7
2028 0.181 311.1
2029 0.193 308.8
2030 0.202 306.8

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

grafico orbita





wds05103-0736e.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
05103-0736 A 484 1996 23 298 0.2 8.18 8.38 F8 NO 051020.70-073537.2
05103-0736 A 484 2008 24 312 0.2 8.18 8.38 F8 NO 051020.70-073537.2
05103-0736 A 484 2010 26 307 0.2 8.18 8.38 F8 NOD 051020.70-073537.2
05103-0736 A 484 2012 28 304 0.2 8.18 8.38 F8 NO 051020.70-073537.2
05103-0736 A 484 2015 29 297 0.2 8.18 8.38 F8 NO 051020.70-073537.2
05103-0736 A 484 2017 32 291 0.1 8.18 8.38 F8 NO 051020.70-073537.2

If you need more information about this double, apply for a data request form to the WDS.