19336+3846 CHR 87 (HD 184603)
19h 33m 36.43s +38° 45' 42.9" P.A. 343.00 sep 0.1 mag 7.19,7.68 Sp A3V dist. 128.7 pc (419.82 l.y.)
Coord 2000 |
19336+3846 |
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Discov num |
CHR 87 |
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Comp |
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Coord arcsec 2000 |
19 33 36.43 +38 45 42.9 |
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Date first |
1985 |
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Date last |
2011 |
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Obs |
16 |
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Pa first |
355 |
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Pa last |
342.8 |
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P.A. Now (θ) |
292° |
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Sep first |
0.1 |
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Sep last |
0.14 |
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Sep. Now (ρ) |
0.067" |
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Mag pri |
7.19 |
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Mag sec |
7.68 |
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delta mag (ΔM) |
0.49 |
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Spectral class |
A3V (white) |
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Pri motion ra |
+008 |
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Sec motion ra |
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Pri motion dec |
+023 |
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Sec motion dec |
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Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 184603 |
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Constellation |
Cygnus |
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SAO |
68499 |
|
HIP |
96195 |
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Tycho2 |
3135-00564-1 |
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Gaia DR2 |
2052294257765877632 |
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HD |
184603 |
|
HR |
7436 |
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GC |
27034 |
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BD |
BD+38 3650 |
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Distance |
128.7 |
|
Distance ly |
419.82 |
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ORBITAL ELEMENTS
Period (P) | 47.16y | |
Periastron (T) | 2020.44y | |
Semi-major axis (a) | 0.14a | |
Eccentricity (e) | 0.198 | |
Inclination (i) | 59.5° | |
Longitude of periastron (ω) | 80.8° | |
Node (Ω) | 166.1° | |
Notes | | |
Reference | Cve2012 | |
Equinox | 2000 | |
Last observation | 2010 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
90.2 |
0.086 |
2001 |
99.9 |
0.089 |
2002 |
108.9 |
0.094 |
2003 |
116.9 |
0.099 |
2004 |
124.0 |
0.105 |
2005 |
130.4 |
0.111 |
2006 |
136.1 |
0.117 |
2007 |
141.3 |
0.123 |
2008 |
146.0 |
0.127 |
2009 |
150.5 |
0.131 |
2010 |
154.7 |
0.133 |
2011 |
158.9 |
0.134 |
2012 |
163.1 |
0.132 |
2013 |
167.4 |
0.129 |
2014 |
172.1 |
0.124 |
2015 |
177.2 |
0.116 |
2016 |
183.2 |
0.107 |
2017 |
190.5 |
0.095 |
2018 |
199.9 |
0.083 |
2019 |
212.4 |
0.071 |
2020 |
229.4 |
0.062 |
2021 |
250.8 |
0.057 |
2022 |
273.2 |
0.059 |
2023 |
292.0 |
0.067 |
2024 |
306.0 |
0.079 |
2025 |
316.4 |
0.091 |
2026 |
324.2 |
0.104 |
2027 |
330.4 |
0.115 |
2028 |
335.7 |
0.124 |
2029 |
340.2 |
0.131 |
2030 |
344.3 |
0.137 |
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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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