16518+2840 STF 2107 AB (HD 152380)
16h 51m 50.10s +28° 39' 58.7" P.A. 112.00 sep 1.4 mag 6.90,8.50 Sp F5IV dist. 58.41 pc (190.53 l.y.)
Coord 2000 |
16518+2840 |
|
Discov num |
STF2107 |
|
Comp |
AB |
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Coord arcsec 2000 |
16 51 50.10 +28 39 58.7 |
|
Date first |
1828 |
|
Date last |
2020 |
|
Obs |
445 |
|
Pa first |
149 |
|
Pa last |
111.6 |
|
P.A. Now (θ) |
107.8° |
|
Sep first |
1.1 |
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Sep last |
1.391 |
|
Sep. Now (ρ) |
1.433" |
|
Mag pri |
6.90 |
|
Mag sec |
8.50 |
|
delta mag (ΔM) |
1.6 |
|
Spectral class |
F5IV (yellow-white) |
|
Pri motion ra |
-001 |
|
Sec motion ra |
-006 |
|
Pri motion dec |
+038 |
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Sec motion dec |
+036 |
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Notes |
N
O
(See Notes, Orbital solution) |
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rPM=0.142 (< 0.3, Physical double)
This double is physical.
16518+2840 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 152380 |
84655 |
16 51 50 +28 39 59 |
STF 2107 AB |
2020 |
445 |
112 |
1.4 |
6.90 |
8.50 |
1.60 |
Y |
<=== |
Show |
|
84655 |
16 51 50 +28 39 59 |
STF 2107 AC |
2015 |
9 |
309 |
82.1 |
6.90 |
11.51 |
4.61 |
|
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Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 152380 |
|
Constellation |
Hercules |
|
SAO |
84655 |
|
HIP |
82510 |
|
Tycho2 |
2070-00684-1 |
|
Gaia DR2 |
1308065004764546688 |
|
HD |
152380 |
|
GC |
22715 |
|
ADS |
10235 |
|
BD |
BD+28 2624 |
|
Distance |
58.41 |
|
Distance ly |
190.53 |
|
ORBITAL ELEMENTS
Period (P) | 274.0879y | ± 9.1195 |
Periastron (T) | 1896.2454y | ± 0.493 |
Semi-major axis (a) | 1.03828a | ± 0.02866 |
Eccentricity (e) | 0.5788 | ± 0.00928 |
Inclination (i) | 31.633° | ± 1.937 |
Longitude of periastron (ω) | 250.267° | ± 5.414 |
Node (Ω) | 45.623° | ± 4.383 |
Notes | n | |
Reference | Izm2019 | |
Equinox | | |
Last observation | 2015 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
96.7 |
1.414 |
2001 |
97.2 |
1.416 |
2002 |
97.7 |
1.418 |
2003 |
98.2 |
1.420 |
2004 |
98.7 |
1.421 |
2005 |
99.2 |
1.423 |
2006 |
99.7 |
1.424 |
2007 |
100.2 |
1.426 |
2008 |
100.6 |
1.427 |
2009 |
101.1 |
1.428 |
2010 |
101.6 |
1.429 |
2011 |
102.1 |
1.430 |
2012 |
102.6 |
1.431 |
2013 |
103.0 |
1.432 |
2014 |
103.5 |
1.432 |
2015 |
104.0 |
1.433 |
2016 |
104.5 |
1.433 |
2017 |
105.0 |
1.434 |
2018 |
105.4 |
1.434 |
2019 |
105.9 |
1.434 |
2020 |
106.4 |
1.434 |
2021 |
106.9 |
1.434 |
2022 |
107.4 |
1.434 |
2023 |
107.8 |
1.433 |
2024 |
108.3 |
1.433 |
2025 |
108.8 |
1.433 |
2026 |
109.3 |
1.432 |
2027 |
109.7 |
1.432 |
2028 |
110.2 |
1.431 |
2029 |
110.7 |
1.430 |
2030 |
111.2 |
1.429 |
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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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