18591+2230 HU 332 (HD 343521)
18h 59m 03.72s +22° 30' 03.2" P.A. 267.00 sep 0.5 mag 9.72,9.61 Sp G0
Coord 2000 |
18591+2230 |
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Discov num |
HU 332 |
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Comp |
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Coord arcsec 2000 |
18 59 03.72 +22 30 03.2 |
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Date first |
1901 |
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Date last |
2016 |
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Obs |
19 |
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Pa first |
198 |
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Pa last |
266.9 |
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P.A. Now (θ) |
266.9° |
|
Sep first |
0.4 |
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Sep last |
0.526 |
|
Sep. Now (ρ) |
0.526" |
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Mag pri |
9.72 |
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Mag sec |
9.61 |
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delta mag (ΔM) |
0.11 |
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Spectral class |
G0 (yellow) |
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Pri motion ra |
-017 |
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Sec motion ra |
-017 |
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Pri motion dec |
+002 |
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Sec motion dec |
+002 |
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Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 343521 |
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Constellation |
Vulpecula |
|
SAO |
86659 |
|
Tycho2 |
2122-01573-1 |
|
Gaia DR2 |
4520903711321328384 |
|
HD |
343521 |
|
ADS |
11906 |
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ORBITAL ELEMENTS
Period (P) | 1773.7y | |
Periastron (T) | 1849.71y | |
Semi-major axis (a) | 2.338a | |
Eccentricity (e) | 0.906 | |
Inclination (i) | 76.9° | |
Longitude of periastron (ω) | 301.2° | |
Node (Ω) | 159.7° | |
Notes | | |
Reference | Lin2020 | |
Equinox | 2000 | |
Last observation | 2016 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
260.6 |
0.470 |
2001 |
261.0 |
0.473 |
2002 |
261.5 |
0.476 |
2003 |
262.0 |
0.478 |
2004 |
262.4 |
0.481 |
2005 |
262.9 |
0.484 |
2006 |
263.3 |
0.487 |
2007 |
263.8 |
0.490 |
2008 |
264.2 |
0.492 |
2009 |
264.7 |
0.495 |
2010 |
265.1 |
0.498 |
2011 |
265.5 |
0.501 |
2012 |
265.9 |
0.504 |
2013 |
266.4 |
0.507 |
2014 |
266.8 |
0.510 |
2015 |
267.2 |
0.513 |
2016 |
267.6 |
0.516 |
2017 |
268.0 |
0.519 |
2018 |
268.4 |
0.522 |
2019 |
268.8 |
0.525 |
2020 |
269.1 |
0.528 |
2021 |
269.5 |
0.531 |
2022 |
269.9 |
0.534 |
2023 |
270.3 |
0.537 |
2024 |
270.6 |
0.540 |
2025 |
271.0 |
0.544 |
2026 |
271.4 |
0.547 |
2027 |
271.7 |
0.550 |
2028 |
272.1 |
0.553 |
2029 |
272.4 |
0.556 |
2030 |
272.8 |
0.559 |
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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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