17207-0706 A 2593 AB
17h 20m 43.07s -07° 06' 23.8" P.A. 329.00 sep 0.3 mag 9.11,10.84 Sp G5 dist. 65.27 pc (212.91 l.y.)
Coord 2000 |
17207-0706 |
|
Discov num |
A 2593 |
|
Comp |
AB |
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Coord arcsec 2000 |
17 20 43.07 -07 06 23.8 |
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Date first |
1913 |
|
Date last |
2019 |
|
Obs |
40 |
|
Pa first |
138 |
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Pa last |
328.6 |
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P.A. Now (θ) |
318° |
|
Sep first |
0.2 |
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Sep last |
0.268 |
|
Sep. Now (ρ) |
0.221" |
|
Mag pri |
9.11 |
|
Mag sec |
10.84 |
|
delta mag (ΔM) |
1.73 |
|
Spectral class |
G5 (yellow) |
|
Pri motion ra |
+031 |
|
Sec motion ra |
|
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Pri motion dec |
-038 |
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Sec motion dec |
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|
Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
17207-0706 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
141620 |
17 20 43 -07 06 24 |
A 2593 AB |
2019 |
40 |
329 |
0.3 |
9.11 |
10.84 |
1.73 |
Y |
<=== |
Show |
|
141620 |
17 20 43 -07 06 24 |
TOK 178 AC |
2015 |
9 |
109 |
10.2 |
8.78 |
15.21 |
6.43 |
|
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Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Ophiuchus |
|
SAO |
141620 |
|
HIP |
84866 |
|
Tycho2 |
5078-00094-1 |
|
HD |
156952 |
|
ADS |
10480 |
|
BD |
BD-06 4581 |
|
Distance |
65.27 |
|
Distance ly |
212.91 |
|
ORBITAL ELEMENTS
Period (P) | 73.99y | |
Periastron (T) | 1989.46y | |
Semi-major axis (a) | 0.27a | |
Eccentricity (e) | 0.026 | |
Inclination (i) | 123.4° | |
Longitude of periastron (ω) | 61.9° | |
Node (Ω) | 167.6° | |
Notes | n | |
Reference | Msn2014a | |
Equinox | 2000 | |
Last observation | 2013 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
36.6 |
0.175 |
2001 |
30.6 |
0.185 |
2002 |
25.2 |
0.196 |
2003 |
20.4 |
0.207 |
2004 |
16.0 |
0.217 |
2005 |
12.1 |
0.227 |
2006 |
8.4 |
0.237 |
2007 |
5.1 |
0.245 |
2008 |
1.9 |
0.253 |
2009 |
359.0 |
0.259 |
2010 |
356.1 |
0.265 |
2011 |
353.4 |
0.269 |
2012 |
350.7 |
0.272 |
2013 |
348.1 |
0.273 |
2014 |
345.5 |
0.273 |
2015 |
342.9 |
0.272 |
2016 |
340.2 |
0.269 |
2017 |
337.5 |
0.266 |
2018 |
334.6 |
0.261 |
2019 |
331.7 |
0.255 |
2020 |
328.6 |
0.248 |
2021 |
325.3 |
0.240 |
2022 |
321.8 |
0.231 |
2023 |
318.0 |
0.221 |
2024 |
313.8 |
0.212 |
2025 |
309.2 |
0.202 |
2026 |
304.2 |
0.192 |
2027 |
298.6 |
0.182 |
2028 |
292.4 |
0.173 |
2029 |
285.6 |
0.166 |
2030 |
278.2 |
0.159 |
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
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Measures: green=micrometric, blue=interferometric, purple=photographic |
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