17533+2459 A 235 (HD 163077)
17h 53m 18.60s +24° 59' 29.0" P.A. 76.00 sep 0.4 mag 8.36,9.28 Sp G8V dist. 49.04 pc (159.97 l.y.)
Coord 2000 |
17533+2459 |
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Discov num |
A 235 |
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Comp |
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Coord arcsec 2000 |
17 53 18.60 +24 59 29.0 |
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Date first |
1901 |
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Date last |
2021 |
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Obs |
117 |
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Pa first |
65 |
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Pa last |
75.7 |
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P.A. Now (θ) |
78.9° |
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Sep first |
0.2 |
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Sep last |
0.371 |
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Sep. Now (ρ) |
0.394" |
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Mag pri |
8.36 |
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Mag sec |
9.28 |
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delta mag (ΔM) |
0.92 |
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Spectral class |
G8V (yellow) |
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Pri motion ra |
-070 |
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Sec motion ra |
-070 |
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Pri motion dec |
-050 |
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Sec motion dec |
-050 |
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Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 163077 |
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Constellation |
Hercules |
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SAO |
85508 |
|
HIP |
87565 |
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Tycho2 |
2094-01508-1 |
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HD |
163077 |
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GC |
24331 |
|
ADS |
10871 |
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BD |
BD+25 3368 |
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Distance |
49.04 |
|
Distance ly |
159.97 |
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ORBITAL ELEMENTS
Period (P) | 38.09y | |
Periastron (T) | 2082.1y | |
Semi-major axis (a) | 0.273a | |
Eccentricity (e) | 0.483 | |
Inclination (i) | 67.3° | |
Longitude of periastron (ω) | 355° | |
Node (Ω) | 263.8° | |
Notes | n | |
Reference | Hrt2014b | |
Equinox | 2000 | |
Last observation | 2009 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
119.8 |
0.150 |
2001 |
134.1 |
0.112 |
2002 |
160.4 |
0.083 |
2003 |
199.8 |
0.078 |
2004 |
231.3 |
0.100 |
2005 |
249.9 |
0.127 |
2006 |
262.8 |
0.141 |
2007 |
275.1 |
0.135 |
2008 |
290.5 |
0.113 |
2009 |
314.0 |
0.090 |
2010 |
347.2 |
0.083 |
2011 |
17.4 |
0.099 |
2012 |
36.2 |
0.129 |
2013 |
47.5 |
0.164 |
2014 |
54.9 |
0.198 |
2015 |
60.0 |
0.232 |
2016 |
64.0 |
0.262 |
2017 |
67.1 |
0.290 |
2018 |
69.7 |
0.315 |
2019 |
71.9 |
0.337 |
2020 |
73.9 |
0.356 |
2021 |
75.7 |
0.371 |
2022 |
77.4 |
0.384 |
2023 |
78.9 |
0.394 |
2024 |
80.4 |
0.400 |
2025 |
81.9 |
0.404 |
2026 |
83.4 |
0.404 |
2027 |
84.8 |
0.401 |
2028 |
86.3 |
0.395 |
2029 |
87.9 |
0.386 |
2030 |
89.6 |
0.373 |
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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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