17506+0714 STT 337 (HD 162405)
17h 50m 34.90s +07° 13' 58.0" P.A. 163.00 sep 0.6 mag 8.18,8.98 Sp F6.1V+F6V dist. 106.61 pc (347.76 l.y.)
| Coord 2000 |
17506+0714 |
|
Discov num |
STT 337 |
|
Comp |
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|
Coord arcsec 2000 |
17 50 34.90 +07 13 58.0 |
|
| Date first |
1843 |
|
Date last |
2021 |
|
Obs |
129 |
|
| Pa first |
128 |
|
Pa last |
163.3 |
|
P.A. Now (θ) |
163.3° |
|
| Sep first |
0.5 |
|
Sep last |
0.608 |
|
Sep. Now (ρ) |
0.608" |
|
| Mag pri |
8.18 |
|
Mag sec |
8.98 |
|
delta mag (ΔM) |
0.8 |
|
Spectral class |
F6.1V+F6V (yellow-white/yellow-white) |
|
| Pri motion ra |
+012 |
|
Sec motion ra |
+012 |
|
| Pri motion dec |
+019 |
|
Sec motion dec |
+019 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 162405 |
|
Constellation |
Ophiuchus |
|
SAO |
122818 |
|
HIP |
87325 |
|
| Tycho2 |
0428-00083-1 |
|
Gaia DR2 |
4475819061644942720 |
|
HD |
162405 |
|
GC |
24230 |
|
| ADS |
10828 |
|
BD |
BD+07 3481 |
|
Distance |
106.61 |
|
Distance ly |
347.76 |
|
ORBITAL ELEMENTS
| Period (P) | 1000y | |
Periastron (T) | 1787y | |
Semi-major axis (a) | 1.389a | |
| Eccentricity (e) | 0.613 | |
Inclination (i) | 100.1° | |
Longitude of periastron (ω) | 141.7° | |
| Node (Ω) | 134.1° | |
Notes | n | |
Reference | Doc2015f | |
| Equinox | 2000 | |
Last observation | 2013 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
169.9 |
0.488 |
| 2001 |
169.5 |
0.494 |
| 2002 |
169.1 |
0.500 |
| 2003 |
168.7 |
0.505 |
| 2004 |
168.4 |
0.511 |
| 2005 |
168.0 |
0.516 |
| 2006 |
167.6 |
0.522 |
| 2007 |
167.3 |
0.528 |
| 2008 |
166.9 |
0.533 |
| 2009 |
166.6 |
0.539 |
| 2010 |
166.3 |
0.545 |
| 2011 |
166.0 |
0.550 |
| 2012 |
165.6 |
0.556 |
| 2013 |
165.3 |
0.562 |
| 2014 |
165.0 |
0.567 |
| 2015 |
164.7 |
0.573 |
| 2016 |
164.4 |
0.579 |
| 2017 |
164.2 |
0.585 |
| 2018 |
163.9 |
0.590 |
| 2019 |
163.6 |
0.596 |
| 2020 |
163.3 |
0.602 |
| 2021 |
163.1 |
0.607 |
| 2022 |
162.8 |
0.613 |
| 2023 |
162.6 |
0.619 |
| 2024 |
162.3 |
0.625 |
| 2025 |
162.1 |
0.630 |
| 2026 |
161.8 |
0.636 |
| 2027 |
161.6 |
0.642 |
| 2028 |
161.4 |
0.647 |
| 2029 |
161.1 |
0.653 |
| 2030 |
160.9 |
0.659 |
|
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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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