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 |
2031 |
355.8 |
3.373 |
2032 |
355.8 |
3.362 |
2033 |
355.9 |
3.351 |
2034 |
355.9 |
3.340 |
2035 |
356.0 |
3.329 |
2036 |
356.1 |
3.317 |
2037 |
356.1 |
3.306 |
2038 |
356.2 |
3.295 |
2039 |
356.3 |
3.283 |
2040 |
356.3 |
3.271 |
2041 |
356.4 |
3.260 |
2042 |
356.5 |
3.248 |
2043 |
356.5 |
3.236 |
2044 |
356.6 |
3.224 |
2045 |
356.7 |
3.212 |
2046 |
356.7 |
3.200 |
2047 |
356.8 |
3.188 |
2048 |
356.9 |
3.176 |
2049 |
356.9 |
3.164 |
2050 |
357.0 |
3.152 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|