21522+0538 JOD 23 AB
21h 52m 10.41s +05° 37' 35.8" P.A. 288.00 sep 0.2 mag 14.00,14.50 Sp M3Ve dist. 30.5 pc (99.49 l.y.)
Coord 2000 |
21522+0538 |
|
Discov num |
JOD 23 |
|
Comp |
AB |
|
Coord arcsec 2000 |
21 52 10.41 +05 37 35.8 |
|
Date first |
2008 |
|
Date last |
2021 |
|
Obs |
10 |
|
Pa first |
61 |
|
Pa last |
287.9 |
|
P.A. Now (θ) |
287.9° |
|
Sep first |
0.1 |
|
Sep last |
0.163 |
|
Sep. Now (ρ) |
0.163" |
|
Mag pri |
14.00 |
|
Mag sec |
14.50 |
|
delta mag (ΔM) |
0.5 |
|
Spectral class |
M3Ve (red) |
|
Pri motion ra |
+119 |
|
Sec motion ra |
|
|
Pri motion dec |
-150 |
|
Sec motion dec |
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|
Notes |
O
R
(Orbital solution, Red magnitudes) |
|
This double is physical.
21522+0538 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
|
21 52 10 +05 37 36 |
JOD 23 AB |
2021 |
10 |
288 |
0.2 |
14.00 |
14.50 |
0.50 |
Y |
<=== |
Show |
|
|
21 52 10 +05 37 36 |
JOD 23 AC |
2021 |
10 |
35 |
0.7 |
14.00 |
16.10 |
2.10 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Pegasus |
|
HIP |
107948 |
|
Gaia DR2 |
2697021694161423872 |
|
Distance |
30.5 |
|
Distance ly |
99.49 |
|
ORBITAL ELEMENTS
Period (P) | 9.08y | ± 0.11 |
Periastron (T) | 2019.38y | ± 0.02 |
Semi-major axis (a) | 0.1406a | ± 0.0013 |
Eccentricity (e) | 0.447 | ± 0.008 |
Inclination (i) | 0° | |
Longitude of periastron (ω) | 0° | |
Node (Ω) | 163.7° | ± 1.2 |
Notes | | |
Reference | Tok2020e | |
Equinox | | |
Last observation | 2019 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
63.6 |
0.122 |
2001 |
138.7 |
0.080 |
2002 |
238.7 |
0.101 |
2003 |
285.5 |
0.147 |
2004 |
311.5 |
0.181 |
2005 |
330.6 |
0.199 |
2006 |
347.8 |
0.203 |
2007 |
5.5 |
0.192 |
2008 |
27.1 |
0.167 |
2009 |
60.0 |
0.126 |
2010 |
130.1 |
0.082 |
2011 |
233.0 |
0.097 |
2012 |
282.9 |
0.144 |
2013 |
309.7 |
0.179 |
2014 |
329.2 |
0.198 |
2015 |
346.4 |
0.203 |
2016 |
4.0 |
0.194 |
2017 |
25.1 |
0.169 |
2018 |
56.5 |
0.130 |
2019 |
122.0 |
0.084 |
2020 |
226.8 |
0.094 |
2021 |
280.1 |
0.140 |
2022 |
307.9 |
0.177 |
2023 |
327.8 |
0.197 |
2024 |
345.1 |
0.203 |
2025 |
2.5 |
0.195 |
2026 |
23.2 |
0.172 |
2027 |
53.3 |
0.133 |
2028 |
114.4 |
0.087 |
2029 |
220.2 |
0.090 |
2030 |
277.2 |
0.137 |
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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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