10260+0256 A  2570

 
 
10h 25m 58.68s +02 55' 45.2" P.A. 157.5 sep 0.03 mag 7.79,7.71 Sp A2V dist. 170.36 pc (555.71 l.y.)
 
 
Coord 2000
10260+0256
Discov num
A  2570
Comp
Coord arcsec 2000
10 25 58.68 +02 55 45.2
Date first
1913
Date last
2006
Obs
49
Pa first
330
Pa last
297
P.A. Now (θ)
157.5°
Sep first
0.4
Sep last
0.2
Sep. Now (ρ)
0.03"
Mag pri
7.79
Mag sec
7.71
delta mag (ΔM)
0.08
Spectral class
A2V (white)
Pri motion ra
-032
Sec motion ra
Pri motion dec
-001
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
297
Precise sep
0.21
Cdsa2 id
A 2570
Constellation
Sextans
HIP
51061
Tycho2
0249-00959-1
HD
90361
ADS
7769
BD
BD+03 2365
Ra deg
10.432966666666665
De deg
2.929222222222222
Distance
170.36
Distance ly
555.71
last precise pa
297
last precise sep
0.21
 
 
ORBITAL ELEMENTS
 
 
Period (P)311y Periastron (T)2018y Semi-major axis (a)0.447a
Eccentricity (e)0.84 Inclination (i)107.1° Longitude of periastron (ω)287.6°
Node (Ω)114.7° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2006
label rho theta
2000 0.264 301.5
2001 0.257 300.9
2002 0.249 300.4
2003 0.240 299.7
2004 0.231 299.1
2005 0.221 298.4
2006 0.211 297.6
2007 0.200 296.7
2008 0.188 295.7
2009 0.175 294.6
2010 0.161 293.3
2011 0.146 291.7
2012 0.129 289.8
2013 0.110 287.2
2014 0.090 283.5
2015 0.067 277.4
2016 0.043 264.7
2017 0.023 225.2
2018 0.029 157.5
2019 0.052 133.1
2020 0.074 123.5
2021 0.092 118.1
2022 0.106 114.4
2023 0.118 111.4
2024 0.127 109.0
2025 0.135 106.8
2026 0.142 104.9
2027 0.147 103.1
2028 0.151 101.5
2029 0.155 99.9
2030 0.158 98.4

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

grafico orbita





wds10260%2B0256a.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
10260+0256 A 2570 2006 53 297 0.2 7.79 7.71 A2V D 102558.68+025545.2

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