20020+2456 STT 395 (16 Vul)
20h 02m 01.45s +24° 56' 16.8" P.A. 129.00 sep 0.7 mag 5.83,6.19 Sp F2III dist. 67.98 pc (221.75 l.y.)
Coord 2000 |
20020+2456 |
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Discov num |
STT 395 |
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Comp |
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Coord arcsec 2000 |
20 02 01.45 +24 56 16.8 |
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Date first |
1843 |
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Date last |
2020 |
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Obs |
333 |
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Pa first |
89 |
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Pa last |
128.8 |
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P.A. Now (θ) |
128.8° |
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Sep first |
0.5 |
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Sep last |
0.73 |
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Sep. Now (ρ) |
0.73" |
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Mag pri |
5.83 |
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Mag sec |
6.19 |
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delta mag (ΔM) |
0.36 |
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Spectral class |
F2III (yellow-white) |
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Pri motion ra |
+090 |
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Sec motion ra |
+090 |
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Pri motion dec |
+067 |
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Sec motion dec |
+067 |
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Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
16 Vul |
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Constellation |
Vulpecula |
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SAO |
88098 |
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HIP |
98636 |
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Tycho2 |
2145-01661-1 |
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HD |
190004 |
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HR |
7657 |
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GC |
27768 |
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ADS |
13277 |
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BD |
BD+24 3977 |
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Flamsteed |
16 Vulpeculae |
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Flamsteed name |
16 Vul |
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Distance |
67.98 |
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Distance ly |
221.75 |
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ORBITAL ELEMENTS
Period (P) | 1201y | |
Periastron (T) | 1863.7y | |
Semi-major axis (a) | 2.687a | |
Eccentricity (e) | 0.932 | |
Inclination (i) | 79° | |
Longitude of periastron (ω) | 276.5° | |
Node (Ω) | 84.5° | |
Notes | n | |
Reference | Zir2013a | |
Equinox | 2000 | |
Last observation | 2009 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
123.4 |
0.848 |
2001 |
123.6 |
0.848 |
2002 |
123.8 |
0.848 |
2003 |
124.0 |
0.848 |
2004 |
124.2 |
0.848 |
2005 |
124.4 |
0.848 |
2006 |
124.6 |
0.848 |
2007 |
124.9 |
0.849 |
2008 |
125.1 |
0.849 |
2009 |
125.3 |
0.849 |
2010 |
125.5 |
0.849 |
2011 |
125.7 |
0.849 |
2012 |
125.9 |
0.849 |
2013 |
126.1 |
0.849 |
2014 |
126.3 |
0.849 |
2015 |
126.5 |
0.849 |
2016 |
126.7 |
0.849 |
2017 |
126.9 |
0.849 |
2018 |
127.1 |
0.849 |
2019 |
127.3 |
0.849 |
2020 |
127.6 |
0.849 |
2021 |
127.8 |
0.849 |
2022 |
128.0 |
0.849 |
2023 |
128.2 |
0.849 |
2024 |
128.4 |
0.849 |
2025 |
128.6 |
0.849 |
2026 |
128.8 |
0.849 |
2027 |
129.0 |
0.849 |
2028 |
129.2 |
0.849 |
2029 |
129.4 |
0.849 |
2030 |
129.6 |
0.849 |
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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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