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 |
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Pa last |
264.1 |
|
P.A. Now (θ) |
264.1° |
|
Sep first |
0.4 |
|
Sep last |
1.346 |
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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 |
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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 |
|
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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 |
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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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