17415-5348 HDS2502

 
 
17h 41m 27.68s -53 48' 10.5" P.A. 248.3 sep 0.07 mag 10.17,10.47 Sp K1IV/V dist. 64.14 pc (209.22 l.y.)
 
 
Coord 2000
17415-5348
Discov num
HDS2502
Comp
Coord arcsec 2000
17 41 27.68 -53 48 10.5
Date first
1991
Date last
2017
Obs
8
Pa first
347
Pa last
222
P.A. Now (θ)
248.3°
Sep first
0.2
Sep last
0.0
Sep. Now (ρ)
0.07"
Mag pri
10.17
Mag sec
10.47
delta mag (ΔM)
0.3
Spectral class
K1IV/V (yellow-orange)
Pri motion ra
-051
Sec motion ra
Pri motion dec
-030
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
221.9
Precise sep
0.04
Constellation
Ara
SAO
244944
HIP
86569
Tycho2
8729-02663-1
HD
160177
CP
CP-53 8730
Distance
64.14
Distance ly
209.22
last precise pa
221.9
last precise sep
0.04
 
 
ORBITAL ELEMENTS
 
 
Period (P)32.738y± 0.12 Periastron (T)2018.009y± 0.101 Semi-major axis (a)0.197a± 0.0006
Eccentricity (e)0.225± 0.002 Inclination (i)116.9°± 0.1 Longitude of periastron (ω)275.4°± 0.8
Node (Ω)169.8°± 0.2 Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2015
label rho theta
2000 0.111 93.6
2001 0.109 78.0
2002 0.113 62.6
2003 0.122 48.9
2004 0.135 37.5
2005 0.149 28.1
2006 0.163 20.4
2007 0.176 13.8
2008 0.187 8.1
2009 0.194 3.0
2010 0.197 358.1
2011 0.196 353.2
2012 0.188 348.2
2013 0.174 342.4
2014 0.154 335.5
2015 0.128 326.0
2016 0.100 311.3
2017 0.076 285.9
2018 0.070 248.3
2019 0.088 216.7
2020 0.115 198.0
2021 0.142 186.6
2022 0.164 178.6
2023 0.179 172.2
2024 0.187 166.6
2025 0.189 161.4
2026 0.186 156.0
2027 0.178 150.3
2028 0.167 144.0
2029 0.154 136.7
2030 0.140 127.9

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

grafico orbita





wds17415-5348a.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
17415-5348 HDS2502 1991 1 347 0.2 10.17 10.47 K1IV/V 174127.68-534810.5
17415-5348 HDS2502 2009 2 2 0.2 10.17 10.47 K1IV/V 174127.68-534810.5
17415-5348 HDS2502 2012 3 346 0.2 10.17 10.47 K1IV/V 174127.68-534810.5
17415-5348 HDS2502 2013 4 337 0.2 10.17 10.47 K1IV/V 174127.68-534810.5
17415-5348 HDS2502 2014 5 333 0.1 10.17 10.47 K1IV/V 174127.68-534810.5
17415-5348 HDS2502 2015 6 322 0.1 10.17 10.47 K1IV/V 174127.68-534810.5
17415-5348 HDS2502 2017 8 222 0.0 10.17 10.47 K1IV/V O 174127.68-534810.5

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