20329+1357 L 35 CD
20h 32m 53.06s +13° 58' 09.1" P.A. 130.00 sep 0.5 mag 10.60,10.92 Sp K3.6V+G9V dist. 72.78 pc (237.41 l.y.)
| Coord 2000 |
20329+1357 |
|
Discov num |
L 35 |
|
Comp |
CD |
|
Coord arcsec 2000 |
20 32 53.06 +13 58 09.1 |
|
| Date first |
1900 |
|
Date last |
2021 |
|
Obs |
65 |
|
| Pa first |
143 |
|
Pa last |
129.9 |
|
P.A. Now (θ) |
129.6° |
|
| Sep first |
0.3 |
|
Sep last |
0.521 |
|
Sep. Now (ρ) |
0.501" |
|
| Mag pri |
10.60 |
|
Mag sec |
10.92 |
|
delta mag (ΔM) |
0.32 |
|
Spectral class |
K3.6V+G9V (yellow-orange/yellow) |
|
| Pri motion ra |
-077 |
|
Sec motion ra |
|
|
| Pri motion dec |
+141 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
20329+1357 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
20 32 55 +13 56 40 |
BU 670 AB |
2016 |
92 |
5 |
0.8 |
9.44 |
9.87 |
0.43 |
|
|
| Show |
|
|
20 32 55 +13 56 40 |
A 3108 AB,CD |
2016 |
20 |
340 |
98.4 |
9.12 |
10.02 |
0.90 |
|
|
| Show |
|
|
20 32 53 +13 58 09 |
L 35 CD |
2021 |
65 |
130 |
0.5 |
10.60 |
10.92 |
0.32 |
Y |
<=== |
Quadruple system
6 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Delphinus |
|
HIP |
101390 |
|
Tycho2 |
1099-01004-1 |
|
Gaia DR2 |
1804320884949038976 |
|
| ADS |
13987 |
|
BD |
BD+13 4434 |
|
Distance |
72.78 |
|
Distance ly |
237.41 |
|
ORBITAL ELEMENTS
| Period (P) | 117.92y | |
Periastron (T) | 1974.32y | |
Semi-major axis (a) | 0.426a | |
| Eccentricity (e) | 0.198 | |
Inclination (i) | 166° | |
Longitude of periastron (ω) | 6.6° | |
| Node (Ω) | 294.9° | |
Notes | n | |
Reference | Hrt2014b | |
| Equinox | 2000 | |
Last observation | 2009 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
186.6 |
0.414 |
| 2001 |
183.6 |
0.419 |
| 2002 |
180.6 |
0.424 |
| 2003 |
177.7 |
0.428 |
| 2004 |
174.9 |
0.433 |
| 2005 |
172.1 |
0.438 |
| 2006 |
169.4 |
0.442 |
| 2007 |
166.7 |
0.447 |
| 2008 |
164.1 |
0.451 |
| 2009 |
161.5 |
0.456 |
| 2010 |
159.0 |
0.460 |
| 2011 |
156.6 |
0.464 |
| 2012 |
154.1 |
0.468 |
| 2013 |
151.7 |
0.472 |
| 2014 |
149.4 |
0.475 |
| 2015 |
147.1 |
0.479 |
| 2016 |
144.8 |
0.482 |
| 2017 |
142.5 |
0.485 |
| 2018 |
140.3 |
0.488 |
| 2019 |
138.1 |
0.491 |
| 2020 |
135.9 |
0.494 |
| 2021 |
133.8 |
0.496 |
| 2022 |
131.7 |
0.499 |
| 2023 |
129.6 |
0.501 |
| 2024 |
127.5 |
0.502 |
| 2025 |
125.4 |
0.504 |
| 2026 |
123.3 |
0.506 |
| 2027 |
121.3 |
0.507 |
| 2028 |
119.2 |
0.508 |
| 2029 |
117.2 |
0.509 |
| 2030 |
115.1 |
0.509 |
| 2031 |
113.1 |
0.510 |
| 2032 |
111.1 |
0.510 |
| 2033 |
109.1 |
0.510 |
| 2034 |
107.0 |
0.510 |
| 2035 |
105.0 |
0.510 |
| 2036 |
103.0 |
0.509 |
| 2037 |
100.9 |
0.508 |
| 2038 |
98.9 |
0.507 |
| 2039 |
96.8 |
0.506 |
| 2040 |
94.8 |
0.505 |
| 2041 |
92.7 |
0.503 |
| 2042 |
90.6 |
0.501 |
| 2043 |
88.5 |
0.499 |
| 2044 |
86.4 |
0.497 |
| 2045 |
84.3 |
0.495 |
| 2046 |
82.1 |
0.493 |
| 2047 |
79.9 |
0.490 |
| 2048 |
77.7 |
0.487 |
| 2049 |
75.5 |
0.484 |
| 2050 |
73.2 |
0.481 |
|
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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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