11102-1122 HDS1590

 
 
11h 10m 11.93s -11 21' 35.9" P.A. 77.2 sep 0.07 mag 8.43,8.78 Sp G0 dist. 61.84 pc (201.72 l.y.)
 
 
Coord 2000
11102-1122
Discov num
HDS1590
Comp
Coord arcsec 2000
11 10 11.93 -11 21 35.9
Date first
1991
Date last
2015
Obs
13
Pa first
328
Pa last
280
P.A. Now (θ)
77.2°
Sep first
0.1
Sep last
0.1
Sep. Now (ρ)
0.07"
Mag pri
8.43
Mag sec
8.78
delta mag (ΔM)
0.35
Spectral class
G0 (yellow)
Pri motion ra
-002
Sec motion ra
Pri motion dec
-079
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
279.5
Precise sep
0.077
Constellation
Crater
SAO
156506
HIP
54580
Tycho2
5504-01608-1
HD
97038
BD
BD-10 3211
Distance
61.84
Distance ly
201.72
last precise pa
279.5
last precise sep
0.077
 
 
ORBITAL ELEMENTS
 
 
Period (P)20.61y± 0.43 Periastron (T)1995.616y± 0.424 Semi-major axis (a)0.1613a± 0.0044
Eccentricity (e)0.783± 0.009 Inclination (i)120.7°± 1 Longitude of periastron (ω)74.6°± 0.8
Node (Ω)254.7°± 1.6 Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation
label rho theta
2000 0.163 43.1
2001 0.169 37.9
2002 0.172 33.0
2003 0.172 28.1
2004 0.170 23.2
2005 0.166 18.0
2006 0.160 12.6
2007 0.154 6.8
2008 0.147 0.4
2009 0.139 353.3
2010 0.131 345.4
2011 0.122 336.3
2012 0.114 325.9
2013 0.105 313.8
2014 0.095 299.4
2015 0.080 280.6
2016 0.037 239.8
2017 0.073 77.2
2018 0.118 61.3
2019 0.143 52.9
2020 0.158 46.5
2021 0.166 41.0
2022 0.171 36.0
2023 0.172 31.1
2024 0.171 26.2
2025 0.168 21.2
2026 0.164 16.0
2027 0.158 10.4
2028 0.151 4.4
2029 0.144 357.7
2030 0.136 350.3

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

grafico orbita





wds11102-1122b.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
11102-1122 HDS1590 1991 1 328 0.1 8.43 8.78 G0 111011.93-112135.9
11102-1122 HDS1590 2009 2 351 0.1 8.43 8.78 G0 111011.93-112135.9
11102-1122 HDS1590 2010 4 345 0.1 8.43 8.78 G0 D 111011.93-112135.9
11102-1122 HDS1590 2011 6 336 0.1 8.43 8.78 G0 OD 111011.93-112135.9
11102-1122 HDS1590 2012 7 325 0.1 8.43 8.78 G0 OD 111011.93-112135.9
11102-1122 HDS1590 2013 8 312 0.1 8.43 8.78 G0 OD 111011.93-112135.9
11102-1122 HDS1590 2015 11 280 0.1 8.43 8.78 G0 O 111011.93-112135.9

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