01017+2518 HDS 134

 
 
01h 01m 43.49s +25 17' 32.1" P.A. 259.3 sep 0.11 mag 7.48,7.76 Sp G8IV+G8IV dist. 71.07 pc (231.83 l.y.)
 
 
Coord 2000
01017+2518
Discov num
HDS 134
Comp
Coord arcsec 2000
01 01 43.49 +25 17 32.1
Date first
1991
Date last
2010
Obs
32
Pa first
188
Pa last
215
P.A. Now (θ)
259.3°
Sep first
0.1
Sep last
0.1
Sep. Now (ρ)
0.11"
Mag pri
7.48
Mag sec
7.76
delta mag (ΔM)
0.28
Spectral class
G8IV+G8IV (yellow/yellow)
Pri motion ra
+136
Sec motion ra
Pri motion dec
-013
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
214.8
Precise sep
0.138
Cdsa2 id
HDS 134
Constellation
Pisces
SAO
74439
HIP
4809
Tycho2
1743-01174-1
HD
6009
BD
BD+24 163
Ra deg
1.0287472222222223
De deg
25.292250000000003
Distance
71.07
Distance ly
231.83
last precise pa
214.8
last precise sep
0.138
 
 
ORBITAL ELEMENTS
 
 
Period (P)16.41y± 0.11 Periastron (T)1998.62y± 0.02 Semi-major axis (a)0.128a± 0.002
Eccentricity (e)0.393± 0.012 Inclination (i)58.4°± 0.5 Longitude of periastron (ω)106.9°± 0.6
Node (Ω)57.1°± 0.8 Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2004
label rho theta
2000 0.093 233.5
2001 0.107 250.4
2002 0.106 265.5
2003 0.099 282.0
2004 0.092 301.2
2005 0.090 322.3
2006 0.095 342.6
2007 0.105 360.0
2008 0.118 14.0
2009 0.129 25.4
2010 0.136 35.2
2011 0.137 44.5
2012 0.127 54.3
2013 0.102 67.3
2014 0.063 93.7
2015 0.044 174.6
2016 0.081 224.2
2017 0.103 244.0
2018 0.107 259.3
2019 0.102 275.0
2020 0.094 293.0
2021 0.090 313.5
2022 0.092 334.6
2023 0.101 353.3
2024 0.112 8.6
2025 0.124 21.0
2026 0.134 31.3
2027 0.137 40.7
2028 0.132 50.1
2029 0.114 61.3
2030 0.080 79.6

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

grafico orbita





wds01017%2B2518a.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
01017+2518 HDS 134 2005 19 340 0.1 7.48 7.76 G8IV OD 010143.49+251732.1
01017+2518 HDS 134 2007 21 192 0.1 7.48 7.76 G8IV G8IV OD 010143.49+251732.1
01017+2518 HDS 134 2010 28 215 0.1 7.48 7.76 G8IV G8IV OD 010143.49+251732.1

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