17422+3804 RBR 29 Aa,Ab
17h 42m 13.25s +38° 04' 14.3" P.A. 138.00 sep 0.0 mag 6.00,7.30 Sp G0 dist. 40.44 pc (131.92 l.y.)
Coord 2000 |
17422+3804 |
|
Discov num |
RBR 29 |
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Comp |
Aa,Ab |
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Coord arcsec 2000 |
17 42 13.25 +38 04 14.3 |
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Date first |
2013 |
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Date last |
2018 |
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Obs |
4 |
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Pa first |
202 |
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Pa last |
137.8 |
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P.A. Now (θ) |
137.8° |
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Sep first |
0.1 |
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Sep last |
0.038 |
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Sep. Now (ρ) |
0.038" |
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Mag pri |
6.00 |
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Mag sec |
7.30 |
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delta mag (ΔM) |
1.3 |
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Spectral class |
G0 (yellow) |
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Pri motion ra |
-109 |
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Sec motion ra |
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Pri motion dec |
+094 |
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Sec motion dec |
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Notes |
N
K
(See Notes, K-band or other infrared magnitudes) |
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Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
Nature of this double is uncertain.
17422+3804 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
66273 |
17 42 13 +38 04 14 |
RBR 29 Aa,Ab |
2018 |
4 |
138 |
0.0 |
6.00 |
7.30 |
1.30 |
Y |
<=== |
Show |
HD 161163 |
|
17 42 13 +38 04 14 |
RAO 20 AB |
2016 |
4 |
302 |
2.3 |
7.36 |
12.00 |
4.64 |
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Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Hercules |
|
SAO |
66273 |
|
HIP |
86642 |
|
Tycho2 |
3088-00450-1 |
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Gaia DR2 |
1342735149009387136 |
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HD |
161163 |
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BD |
BD+38 2984 |
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Distance |
40.44 |
|
Distance ly |
131.92 |
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ORBITAL ELEMENTS
Period (P) | 2232.6d (6.11y) | ± 4.1 |
Periastron (T) | 54635.3d (2008.462y) | ± 7.4 |
Semi-major axis (a) | 30.5m | ± 1.2 |
Eccentricity (e) | 0.2631 | ± 0.0057 |
Inclination (i) | 105.4° | ± 4.7 |
Longitude of periastron (ω) | 52.6° | ± 1.3 |
Node (Ω) | 17.5° | ± 3.8 |
Notes | | |
Reference | Fek2018 | |
Equinox | | |
Last observation | | |
Grade | 9 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000-01-01 |
145.3 |
0.012 |
2001-01-01 |
39.7 |
0.018 |
2002-01-01 |
12.9 |
0.022 |
2003-01-01 |
226.9 |
0.012 |
2004-01-01 |
198.2 |
0.033 |
2005-01-01 |
185.8 |
0.031 |
2006-01-01 |
154.5 |
0.014 |
2007-01-01 |
44.9 |
0.016 |
2008-01-01 |
15.8 |
0.024 |
2009-01-01 |
241.0 |
0.009 |
2010-01-01 |
199.6 |
0.032 |
2011-01-01 |
187.4 |
0.032 |
2012-01-01 |
161.5 |
0.016 |
2013-01-01 |
51.6 |
0.014 |
2014-01-01 |
18.5 |
0.025 |
2015-01-01 |
267.9 |
0.007 |
2016-01-01 |
201.2 |
0.031 |
2017-01-01 |
188.9 |
0.033 |
2018-01-01 |
166.9 |
0.018 |
2019-01-01 |
60.2 |
0.013 |
2020-01-01 |
21.0 |
0.025 |
2021-01-01 |
307.0 |
0.007 |
2022-01-01 |
203.0 |
0.029 |
2023-01-01 |
190.3 |
0.034 |
2024-01-01 |
171.2 |
0.020 |
2025-01-01 |
71.5 |
0.011 |
2026-01-01 |
23.6 |
0.025 |
2027-01-01 |
335.9 |
0.009 |
2028-01-01 |
205.0 |
0.027 |
2029-01-01 |
191.7 |
0.034 |
2030-01-01 |
174.7 |
0.022 |
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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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