20391+1005 STT 533 AB (Kap Del)
20h 39m 07.78s +10° 05' 10.3" P.A. 278.00 sep 46.3 mag 5.15,11.63 Sp G1IV+K2IV dist. 30.12 pc (98.25 l.y.)
| Coord 2000 |
20391+1005 |
|
Discov num |
STT 533 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 39 07.78 +10 05 10.3 |
|
| Date first |
1851 |
|
Date last |
2020 |
|
Obs |
35 |
|
| Pa first |
11 |
|
Pa last |
278.2 |
|
P.A. Now (θ) |
278.2° |
|
| Sep first |
10.0 |
|
Sep last |
46.28 |
|
Sep. Now (ρ) |
46.28" |
|
| Mag pri |
5.15 |
|
Mag sec |
11.63 |
|
delta mag (ΔM) |
6.48 |
|
Spectral class |
G1IV+K2IV (yellow/yellow-orange) |
|
| Pri motion ra |
+324 |
|
Sec motion ra |
+006 |
|
| Pri motion dec |
+022 |
|
Sec motion dec |
-002 |
|
| Notes |
N
L
U
(See Notes, Linear solution, Proper motion indicates non-physical) |
|
rPM=0.982
This double is not physical.
20391+1005 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
Kap Del |
126059 |
20 39 08 +10 05 10 |
STT 533 AB |
2020 |
35 |
278 |
46.3 |
5.15 |
11.63 |
6.48 |
Y |
<=== |
| Show |
|
126059 |
20 39 08 +10 05 10 |
STT 533 AC |
2015 |
24 |
101 |
214.6 |
5.15 |
8.62 |
3.47 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
Kap Del |
|
Constellation |
Delphinus |
|
SAO |
126059 |
|
HIP |
101916 |
|
| Tycho2 |
1092-01776-1 |
|
HD |
196755 |
|
HR |
7896 |
|
GC |
28756 |
|
| ADS |
14101 |
|
BD |
BD+09 4600 |
|
Bayer |
Kappa Delphini |
|
Bayer name |
Kap Del |
|
| Flamsteed |
7 Delphini |
|
Flamsteed name |
7 Del |
|
FK5 |
772 |
|
Distance |
30.12 |
|
| Distance ly |
98.25 |
|
Bayer greek |
κ Del |
|
ORBITAL ELEMENTS
| Period (P) | 45y | ± 5 |
Periastron (T) | 1971.2y | ± 1.8 |
Semi-major axis (a) | 0.52a | ± 0.03 |
| Eccentricity (e) | 0.8 | ± 0.4 |
Inclination (i) | 107° | ± 18 |
Longitude of periastron (ω) | 8° | ± 34 |
| Node (Ω) | 326° | ± 17 |
Notes | n | |
Reference | Gon2010 | |
| Equinox | | |
Last observation | | |
Grade | 9 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
140.7 |
0.847 |
| 2001 |
140.1 |
0.823 |
| 2002 |
139.6 |
0.795 |
| 2003 |
138.9 |
0.764 |
| 2004 |
138.2 |
0.729 |
| 2005 |
137.5 |
0.691 |
| 2006 |
136.6 |
0.648 |
| 2007 |
135.7 |
0.601 |
| 2008 |
134.5 |
0.549 |
| 2009 |
133.1 |
0.492 |
| 2010 |
131.3 |
0.430 |
| 2011 |
128.9 |
0.361 |
| 2012 |
125.2 |
0.285 |
| 2013 |
118.7 |
0.202 |
| 2014 |
102.3 |
0.115 |
| 2015 |
33.4 |
0.060 |
| 2016 |
330.6 |
0.104 |
| 2017 |
264.4 |
0.050 |
| 2018 |
177.4 |
0.125 |
| 2019 |
164.4 |
0.232 |
| 2020 |
159.4 |
0.326 |
| 2021 |
156.6 |
0.408 |
| 2022 |
154.7 |
0.481 |
| 2023 |
153.2 |
0.545 |
| 2024 |
152.1 |
0.602 |
| 2025 |
151.1 |
0.653 |
| 2026 |
150.3 |
0.699 |
| 2027 |
149.6 |
0.739 |
| 2028 |
148.9 |
0.775 |
| 2029 |
148.3 |
0.807 |
| 2030 |
147.7 |
0.834 |
| 2031 |
147.2 |
0.858 |
| 2032 |
146.7 |
0.878 |
| 2033 |
146.2 |
0.895 |
| 2034 |
145.7 |
0.908 |
| 2035 |
145.3 |
0.918 |
| 2036 |
144.8 |
0.925 |
| 2037 |
144.4 |
0.928 |
| 2038 |
144.0 |
0.929 |
| 2039 |
143.5 |
0.927 |
| 2040 |
143.1 |
0.921 |
| 2041 |
142.6 |
0.913 |
| 2042 |
142.2 |
0.901 |
| 2043 |
141.7 |
0.886 |
| 2044 |
141.2 |
0.868 |
| 2045 |
140.7 |
0.847 |
| 2046 |
140.1 |
0.823 |
| 2047 |
139.6 |
0.795 |
| 2048 |
138.9 |
0.764 |
| 2049 |
138.2 |
0.729 |
| 2050 |
137.5 |
0.691 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
|
|
