20136+5307 STF 2658 AB (HD 192679)
20h 13m 40.74s +53° 07' 30.3" P.A. 106.00 sep 5.2 mag 7.19,9.38 Sp F5V dist. 44.33 pc (144.6 l.y.)
| Coord 2000 |
20136+5307 |
|
Discov num |
STF2658 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 13 40.74 +53 07 30.3 |
|
| Date first |
1828 |
|
Date last |
2020 |
|
Obs |
85 |
|
| Pa first |
127 |
|
Pa last |
105.6 |
|
P.A. Now (θ) |
105.6° |
|
| Sep first |
4.8 |
|
Sep last |
5.21 |
|
Sep. Now (ρ) |
5.21" |
|
| Mag pri |
7.19 |
|
Mag sec |
9.38 |
|
delta mag (ΔM) |
2.19 |
|
Spectral class |
F5V (yellow-white) |
|
| Pri motion ra |
+043 |
|
Sec motion ra |
+043 |
|
| Pri motion dec |
+169 |
|
Sec motion dec |
+169 |
|
| Notes |
N
O
T
(See Notes, Orbital solution, Parallax indicates physical) |
|
This double is physical.
20136+5307 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 192679 |
32380 |
20 13 41 +53 07 30 |
STF 2658 AB |
2020 |
85 |
106 |
5.2 |
7.19 |
9.38 |
2.19 |
Y |
<=== |
| Show |
|
32380 |
20 13 41 +53 07 30 |
STF 2658 AC |
2015 |
54 |
206 |
65.1 |
7.19 |
10.33 |
3.14 |
|
|
| Show |
|
32380 |
20 13 41 +53 07 30 |
STF 2658 AD |
2015 |
9 |
284 |
30.9 |
7.19 |
12.90 |
5.71 |
|
|
| Show |
|
|
20 13 41 +53 07 29 |
STF 2658 BC |
2012 |
27 |
208 |
65.5 |
9.38 |
10.33 |
0.95 |
|
|
| Show |
|
|
20 13 41 +53 07 29 |
STF 2658 BF |
2015 |
4 |
157 |
17.7 |
9.38 |
14.60 |
5.22 |
|
|
Quintuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 192679 |
|
Constellation |
Cygnus |
|
SAO |
32380 |
|
HIP |
99680 |
|
| Tycho2 |
3937-01789-1 |
|
Gaia DR2 |
2184643400111529984 |
|
HD |
192679 |
|
GC |
28114 |
|
| ADS |
13560 |
|
BD |
BD+52 2657 |
|
Distance |
44.33 |
|
Distance ly |
144.6 |
|
ORBITAL ELEMENTS
| Period (P) | 5631.8534y | ± 2848.8471 |
Periastron (T) | 2806.1927y | ± 1326.8949 |
Semi-major axis (a) | 19.14603a | ± 9.30623 |
| Eccentricity (e) | 0.83512 | ± 0.14259 |
Inclination (i) | 102.938° | ± 7.874 |
Longitude of periastron (ω) | 67.495° | ± 33.772 |
| Node (Ω) | 44.121° | ± 32.92 |
Notes | n | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2015 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
107.9 |
5.359 |
| 2001 |
107.8 |
5.360 |
| 2002 |
107.7 |
5.360 |
| 2003 |
107.6 |
5.361 |
| 2004 |
107.5 |
5.361 |
| 2005 |
107.4 |
5.362 |
| 2006 |
107.3 |
5.362 |
| 2007 |
107.2 |
5.363 |
| 2008 |
107.1 |
5.363 |
| 2009 |
107.0 |
5.364 |
| 2010 |
106.9 |
5.365 |
| 2011 |
106.8 |
5.365 |
| 2012 |
106.7 |
5.366 |
| 2013 |
106.6 |
5.366 |
| 2014 |
106.5 |
5.367 |
| 2015 |
106.4 |
5.368 |
| 2016 |
106.3 |
5.368 |
| 2017 |
106.2 |
5.369 |
| 2018 |
106.1 |
5.370 |
| 2019 |
106.0 |
5.370 |
| 2020 |
105.9 |
5.371 |
| 2021 |
105.8 |
5.372 |
| 2022 |
105.7 |
5.373 |
| 2023 |
105.6 |
5.373 |
| 2024 |
105.5 |
5.374 |
| 2025 |
105.4 |
5.375 |
| 2026 |
105.3 |
5.376 |
| 2027 |
105.2 |
5.376 |
| 2028 |
105.1 |
5.377 |
| 2029 |
105.0 |
5.378 |
| 2030 |
104.9 |
5.379 |
| 2031 |
104.8 |
5.380 |
| 2032 |
104.7 |
5.380 |
| 2033 |
104.6 |
5.381 |
| 2034 |
104.5 |
5.382 |
| 2035 |
104.4 |
5.383 |
| 2036 |
104.3 |
5.384 |
| 2037 |
104.2 |
5.385 |
| 2038 |
104.1 |
5.386 |
| 2039 |
104.0 |
5.387 |
| 2040 |
103.9 |
5.388 |
| 2041 |
103.8 |
5.388 |
| 2042 |
103.7 |
5.389 |
| 2043 |
103.6 |
5.390 |
| 2044 |
103.5 |
5.391 |
| 2045 |
103.4 |
5.392 |
| 2046 |
103.3 |
5.393 |
| 2047 |
103.2 |
5.394 |
| 2048 |
103.1 |
5.395 |
| 2049 |
103.0 |
5.396 |
| 2050 |
102.9 |
5.397 |
|
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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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