20014+1045 STF 2613 AB (HD 189783)
20h 01m 26.66s +10° 44' 54.8" P.A. 354.00 sep 3.5 mag 7.48,8.02 Sp F5V+F5V dist. 80.58 pc (262.85 l.y.)
| Coord 2000 |
20014+1045 |
|
Discov num |
STF2613 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 01 26.66 +10 44 54.8 |
|
| Date first |
1828 |
|
Date last |
2020 |
|
Obs |
166 |
|
| Pa first |
348 |
|
Pa last |
354.3 |
|
P.A. Now (θ) |
354.3° |
|
| Sep first |
5.4 |
|
Sep last |
3.52 |
|
Sep. Now (ρ) |
3.52" |
|
| Mag pri |
7.48 |
|
Mag sec |
8.02 |
|
delta mag (ΔM) |
0.54 |
|
Spectral class |
F5V+F5V (yellow-white/yellow-white) |
|
| Pri motion ra |
+084 |
|
Sec motion ra |
+084 |
|
| Pri motion dec |
+025 |
|
Sec motion dec |
+025 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
20014+1045 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
105560 |
20 01 27 +10 44 55 |
TOK 34 Aa,Ab |
2019 |
8 |
339 |
0.2 |
7.20 |
10.60 |
3.40 |
|
|
| Show |
HD 189783 |
105560 |
20 01 27 +10 44 55 |
STF 2613 AB |
2020 |
166 |
354 |
3.5 |
7.48 |
8.02 |
0.54 |
Y |
<=== |
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 189783 |
|
Constellation |
Aquila |
|
SAO |
105560 |
|
HIP |
98578 |
|
| Tycho2 |
1075-03271-1 |
|
Gaia DR2 |
4300710530575555968 |
|
HD |
189783 |
|
GC |
27754 |
|
| ADS |
13256 |
|
BD |
BD+10 4143 |
|
Distance |
80.58 |
|
Distance ly |
262.85 |
|
ORBITAL ELEMENTS
| Period (P) | 2106.0989y | ± 839.4974 |
Periastron (T) | 2220.5498y | ± 207.1297 |
Semi-major axis (a) | 4.54412a | ± 2.37261 |
| Eccentricity (e) | 0.65213 | ± 0.25361 |
Inclination (i) | 74.956° | ± 7.741 |
Longitude of periastron (ω) | 290.393° | ± 21.204 |
| Node (Ω) | 175.719° | ± 11.983 |
Notes | n | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2015 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
354.0 |
3.682 |
| 2001 |
354.1 |
3.673 |
| 2002 |
354.1 |
3.664 |
| 2003 |
354.2 |
3.655 |
| 2004 |
354.2 |
3.645 |
| 2005 |
354.3 |
3.636 |
| 2006 |
354.3 |
3.627 |
| 2007 |
354.4 |
3.617 |
| 2008 |
354.4 |
3.608 |
| 2009 |
354.5 |
3.598 |
| 2010 |
354.6 |
3.589 |
| 2011 |
354.6 |
3.579 |
| 2012 |
354.7 |
3.569 |
| 2013 |
354.7 |
3.560 |
| 2014 |
354.8 |
3.550 |
| 2015 |
354.8 |
3.540 |
| 2016 |
354.9 |
3.530 |
| 2017 |
354.9 |
3.520 |
| 2018 |
355.0 |
3.510 |
| 2019 |
355.0 |
3.500 |
| 2020 |
355.1 |
3.490 |
| 2021 |
355.2 |
3.479 |
| 2022 |
355.2 |
3.469 |
| 2023 |
355.3 |
3.459 |
| 2024 |
355.3 |
3.448 |
| 2025 |
355.4 |
3.438 |
| 2026 |
355.5 |
3.427 |
| 2027 |
355.5 |
3.416 |
| 2028 |
355.6 |
3.406 |
| 2029 |
355.6 |
3.395 |
| 2030 |
355.7 |
3.384 |
|
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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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