17080+3556 HU 1176 AB
17h 08m 02.08s +35° 56' 06.8" P.A. 114.00 sep 0.1 mag 6.10,6.10 Sp A5m dist. 54.26 pc (177 l.y.)
| Coord 2000 |
17080+3556 |
|
Discov num |
HU 1176 |
|
Comp |
AB |
|
Coord arcsec 2000 |
17 08 02.08 +35 56 06.8 |
|
| Date first |
1905 |
|
Date last |
2018 |
|
Obs |
187 |
|
| Pa first |
112 |
|
Pa last |
113.9 |
|
P.A. Now (θ) |
356.5° |
|
| Sep first |
0.1 |
|
Sep last |
0.136 |
|
Sep. Now (ρ) |
0.066" |
|
| Mag pri |
6.10 |
|
Mag sec |
6.10 |
|
delta mag (ΔM) |
0 |
|
Spectral class |
A5m (white) |
|
| Pri motion ra |
-017 |
|
Sec motion ra |
|
|
| Pri motion dec |
-016 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
17080+3556 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
65812 |
17 08 02 +35 56 07 |
HU 1176 AB |
2018 |
187 |
114 |
0.1 |
6.10 |
6.10 |
0.00 |
Y |
<=== |
| Show |
HD 155103 |
65812 |
17 08 02 +35 56 07 |
HO 412 AB,C |
2020 |
15 |
132 |
19.3 |
5.48 |
12.10 |
6.62 |
|
|
| Show |
|
65812 |
17 08 02 +35 56 07 |
WAL 77 AB,D |
2002 |
5 |
58 |
80.0 |
5.48 |
11.46 |
5.98 |
|
|
Quadruple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Hercules |
|
SAO |
65812 |
|
HIP |
83838 |
|
Tycho2 |
2603-01829-1 |
|
| Gaia DR2 |
1338482130657660288 |
|
HD |
155103 |
|
HR |
6377 |
|
GC |
23132 |
|
| ADS |
10360 |
|
BD |
BD+36 2827 |
|
Distance |
54.26 |
|
Distance ly |
177 |
|
ORBITAL ELEMENTS
| Period (P) | 2971.54d (8.140000000000001y) | ± 0.84 |
Periastron (T) | 42567.9m (1975.424y) | ± 3.4 |
Semi-major axis (a) | 0.10863a | ± 0.0002 |
| Eccentricity (e) | 0.5338 | ± 0.0015 |
Inclination (i) | 121.221° | ± 0.077 |
Longitude of periastron (ω) | 53.81° | ± 0.16 |
| Node (Ω) | 309.3° | ± 0.11 |
Notes | n | |
Reference | Mut2010b | |
| Equinox | 2000 | |
Last observation | 2008 | |
Grade | 1 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000-01-01 |
234.4 |
0.028 |
| 2001-01-01 |
135.0 |
0.099 |
| 2002-01-01 |
118.7 |
0.133 |
| 2003-01-01 |
106.4 |
0.135 |
| 2004-01-01 |
92.4 |
0.118 |
| 2005-01-01 |
71.4 |
0.092 |
| 2006-01-01 |
34.2 |
0.069 |
| 2007-01-01 |
342.5 |
0.067 |
| 2008-01-01 |
268.0 |
0.034 |
| 2009-01-01 |
138.5 |
0.091 |
| 2010-01-01 |
120.5 |
0.131 |
| 2011-01-01 |
108.1 |
0.136 |
| 2012-01-01 |
94.5 |
0.121 |
| 2013-01-01 |
75.0 |
0.096 |
| 2014-01-01 |
40.5 |
0.071 |
| 2015-01-01 |
349.5 |
0.067 |
| 2016-01-01 |
288.5 |
0.044 |
| 2017-01-01 |
142.7 |
0.081 |
| 2018-01-01 |
122.4 |
0.128 |
| 2019-01-01 |
109.8 |
0.137 |
| 2020-01-01 |
96.6 |
0.124 |
| 2021-01-01 |
78.2 |
0.099 |
| 2022-01-01 |
46.5 |
0.074 |
| 2023-01-01 |
356.5 |
0.066 |
| 2024-01-01 |
301.5 |
0.054 |
| 2025-01-01 |
148.1 |
0.070 |
| 2026-01-01 |
124.3 |
0.124 |
| 2027-01-01 |
111.4 |
0.137 |
| 2028-01-01 |
98.6 |
0.127 |
| 2029-01-01 |
81.3 |
0.103 |
| 2030-01-01 |
52.0 |
0.077 |
|
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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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