17434+3357 HO 560 AB (HD 161299)
17h 43m 22.88s +33° 56' 41.4" P.A. 264.00 sep 1.3 mag 8.82,9.11 Sp F5 dist. 213.68 pc (697.02 l.y.)
| Coord 2000 |
17434+3357 |
|
Discov num |
HO 560 |
|
Comp |
AB |
|
Coord arcsec 2000 |
17 43 22.88 +33 56 41.4 |
|
| Date first |
1894 |
|
Date last |
2020 |
|
Obs |
92 |
|
| Pa first |
272 |
|
Pa last |
264.1 |
|
P.A. Now (θ) |
264.1° |
|
| Sep first |
0.4 |
|
Sep last |
1.346 |
|
Sep. Now (ρ) |
1.346" |
|
| Mag pri |
8.82 |
|
Mag sec |
9.11 |
|
delta mag (ΔM) |
0.29 |
|
Spectral class |
F5 (yellow-white) |
|
| Pri motion ra |
-009 |
|
Sec motion ra |
-009 |
|
| Pri motion dec |
-010 |
|
Sec motion dec |
-010 |
|
| Notes |
O
(Orbital solution) |
|
This double is physical.
17434+3357 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 161299 |
66284 |
17 43 23 +33 56 41 |
HO 560 AB |
2020 |
92 |
264 |
1.3 |
8.82 |
9.11 |
0.29 |
Y |
<=== |
| Show |
|
66284 |
17 43 23 +33 56 41 |
HO 560 AC |
2015 |
4 |
258 |
52.5 |
8.82 |
15.00 |
6.18 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 161299 |
|
Constellation |
Hercules |
|
SAO |
66284 |
|
HIP |
86733 |
|
| Tycho2 |
2615-00858-1 |
|
Gaia DR2 |
4601544814665474816 |
|
HD |
161299 |
|
BD |
BD+34 3031 |
|
| Distance |
213.68 |
|
Distance ly |
697.02 |
|
ORBITAL ELEMENTS
| Period (P) | 1225.1463y | ± 606.5773 |
Periastron (T) | 2113.6148y | ± 126.3162 |
Semi-major axis (a) | 3.49052a | ± 2.13471 |
| Eccentricity (e) | 0.75329 | ± 0.2146 |
Inclination (i) | 92.132° | ± 2.825 |
Longitude of periastron (ω) | 244.819° | ± 31.695 |
| Node (Ω) | 79.477° | ± 1.566 |
Notes | | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2015 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
263.7 |
1.274 |
| 2001 |
263.6 |
1.280 |
| 2002 |
263.6 |
1.286 |
| 2003 |
263.5 |
1.291 |
| 2004 |
263.5 |
1.296 |
| 2005 |
263.4 |
1.302 |
| 2006 |
263.4 |
1.307 |
| 2007 |
263.3 |
1.312 |
| 2008 |
263.3 |
1.317 |
| 2009 |
263.2 |
1.323 |
| 2010 |
263.2 |
1.328 |
| 2011 |
263.1 |
1.332 |
| 2012 |
263.1 |
1.337 |
| 2013 |
263.0 |
1.342 |
| 2014 |
263.0 |
1.347 |
| 2015 |
262.9 |
1.351 |
| 2016 |
262.9 |
1.356 |
| 2017 |
262.8 |
1.360 |
| 2018 |
262.8 |
1.364 |
| 2019 |
262.7 |
1.369 |
| 2020 |
262.7 |
1.373 |
| 2021 |
262.6 |
1.377 |
| 2022 |
262.6 |
1.381 |
| 2023 |
262.5 |
1.384 |
| 2024 |
262.5 |
1.388 |
| 2025 |
262.5 |
1.392 |
| 2026 |
262.4 |
1.395 |
| 2027 |
262.4 |
1.399 |
| 2028 |
262.3 |
1.402 |
| 2029 |
262.3 |
1.405 |
| 2030 |
262.2 |
1.408 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
