19351+5038 HU 679 (HD 185082)
19h 35m 04.51s +50° 37' 38.7" P.A. 273.00 sep 0.4 mag 8.80,9.75 Sp F8 dist. 94.61 pc (308.62 l.y.)
| Coord 2000 |
19351+5038 |
|
Discov num |
HU 679 |
|
Comp |
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|
Coord arcsec 2000 |
19 35 04.51 +50 37 38.7 |
|
| Date first |
1904 |
|
Date last |
2016 |
|
Obs |
33 |
|
| Pa first |
262 |
|
Pa last |
272.5 |
|
P.A. Now (θ) |
278.3° |
|
| Sep first |
0.3 |
|
Sep last |
0.397 |
|
Sep. Now (ρ) |
0.4" |
|
| Mag pri |
8.80 |
|
Mag sec |
9.75 |
|
delta mag (ΔM) |
0.95 |
|
Spectral class |
F8 (yellow-white) |
|
| Pri motion ra |
-008 |
|
Sec motion ra |
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|
| Pri motion dec |
+093 |
|
Sec motion dec |
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| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 185082 |
|
Constellation |
Cygnus |
|
SAO |
31790 |
|
HIP |
96321 |
|
| Tycho2 |
3568-00525-1 |
|
Gaia DR2 |
2135975407684653056 |
|
HD |
185082 |
|
ADS |
12656 |
|
| BD |
BD+50 2819 |
|
Distance |
94.61 |
|
Distance ly |
308.62 |
|
ORBITAL ELEMENTS
| Period (P) | 103.4y | |
Periastron (T) | 1977.3y | |
Semi-major axis (a) | 0.315a | |
| Eccentricity (e) | 0.579 | |
Inclination (i) | 37.3° | |
Longitude of periastron (ω) | 81° | |
| Node (Ω) | 28° | |
Notes | n | |
Reference | Ana2005 | |
| Equinox | 2000 | |
Last observation | 1996 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
243.0 |
0.346 |
| 2001 |
244.8 |
0.351 |
| 2002 |
246.6 |
0.356 |
| 2003 |
248.4 |
0.361 |
| 2004 |
250.1 |
0.365 |
| 2005 |
251.7 |
0.369 |
| 2006 |
253.4 |
0.372 |
| 2007 |
255.0 |
0.376 |
| 2008 |
256.5 |
0.379 |
| 2009 |
258.1 |
0.382 |
| 2010 |
259.6 |
0.384 |
| 2011 |
261.1 |
0.387 |
| 2012 |
262.6 |
0.389 |
| 2013 |
264.1 |
0.391 |
| 2014 |
265.6 |
0.392 |
| 2015 |
267.0 |
0.394 |
| 2016 |
268.4 |
0.395 |
| 2017 |
269.9 |
0.397 |
| 2018 |
271.3 |
0.398 |
| 2019 |
272.7 |
0.398 |
| 2020 |
274.1 |
0.399 |
| 2021 |
275.5 |
0.400 |
| 2022 |
276.9 |
0.400 |
| 2023 |
278.3 |
0.400 |
| 2024 |
279.7 |
0.400 |
| 2025 |
281.1 |
0.400 |
| 2026 |
282.5 |
0.400 |
| 2027 |
283.9 |
0.400 |
| 2028 |
285.3 |
0.399 |
| 2029 |
286.7 |
0.398 |
| 2030 |
288.2 |
0.398 |
|
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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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