19348+2928 WRH 32 (9 Cyg)
19h 34m 50.92s +29° 27' 46.5" P.A. 18.00 sep 0.0 mag 5.90,6.40 Sp A0V+F8III dist. 171.23 pc (558.55 l.y.)
Coord 2000 |
19348+2928 |
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Discov num |
WRH 32 |
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Comp |
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Coord arcsec 2000 |
19 34 50.92 +29 27 46.5 |
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Date first |
1949 |
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Date last |
1994 |
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Obs |
19 |
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Pa first |
121 |
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Pa last |
17.8 |
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P.A. Now (θ) |
17.8° |
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Sep first |
0.2 |
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Sep last |
0.032 |
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Sep. Now (ρ) |
0.032" |
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Mag pri |
5.90 |
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Mag sec |
6.40 |
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delta mag (ΔM) |
0.5 |
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Spectral class |
A0V+F8III (white/yellow-white) |
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Pri motion ra |
+018 |
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Sec motion ra |
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Pri motion dec |
+022 |
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Sec motion dec |
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Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
9 Cyg |
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Constellation |
Cygnus |
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SAO |
87385 |
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HIP |
96302 |
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Tycho2 |
2150-05010-1 |
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Gaia DR2 |
2032337228412797696 |
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HD |
184759 |
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HR |
7441 |
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GC |
27062 |
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BD |
BD+29 3651 |
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Flamsteed |
9 Cygni |
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Flamsteed name |
9 Cyg |
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Distance |
171.23 |
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Distance ly |
558.55 |
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ORBITAL ELEMENTS
Period (P) | 4.56y | |
Periastron (T) | 1985.56y | |
Semi-major axis (a) | 0.03a | |
Eccentricity (e) | 0.82 | |
Inclination (i) | 114.6° | |
Longitude of periastron (ω) | 45.5° | |
Node (Ω) | 29.3° | |
Notes | n | |
Reference | Baz1989b | |
Equinox | | |
Last observation | 1987 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
201.4 |
0.035 |
2001 |
191.1 |
0.044 |
2002 |
181.1 |
0.037 |
2003 |
158.4 |
0.019 |
2004 |
217.1 |
0.015 |
2005 |
196.3 |
0.041 |
2006 |
187.1 |
0.042 |
2007 |
174.5 |
0.030 |
2008 |
116.4 |
0.010 |
2009 |
203.2 |
0.032 |
2010 |
192.2 |
0.043 |
2011 |
182.5 |
0.038 |
2012 |
163.3 |
0.022 |
2013 |
240.0 |
0.006 |
2014 |
197.5 |
0.040 |
2015 |
188.2 |
0.043 |
2016 |
176.6 |
0.032 |
2017 |
134.4 |
0.012 |
2018 |
205.3 |
0.029 |
2019 |
193.3 |
0.043 |
2020 |
183.9 |
0.040 |
2021 |
167.2 |
0.024 |
2022 |
31.0 |
0.006 |
2023 |
198.9 |
0.038 |
2024 |
189.3 |
0.043 |
2025 |
178.4 |
0.034 |
2026 |
146.2 |
0.015 |
2027 |
208.2 |
0.025 |
2028 |
194.4 |
0.043 |
2029 |
185.1 |
0.041 |
2030 |
170.3 |
0.027 |
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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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