21522+0538 JOD 23 AB
21h 52m 10.41s +05° 37' 35.8" P.A. 331.00 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 |
2023 |
|
Obs |
12 |
|
| Pa first |
61 |
|
Pa last |
331.2 |
|
P.A. Now (θ) |
287.9° |
|
| Sep first |
0.1 |
|
Sep last |
0.191 |
|
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 |
|
|
| 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 |
2023 |
12 |
331 |
0.2 |
14.00 |
14.50 |
0.50 |
Y |
<=== |
| Show |
|
|
21 52 10 +05 37 36 |
JOD 23 AC |
2023 |
12 |
39 |
0.8 |
14.00 |
16.10 |
2.10 |
Y |
|
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) | 9.389y | ± 0.046 |
Periastron (T) | 2019.3473y | ± 0.023 |
Semi-major axis (a) | 0.1465a | ± 0.0012 |
| Eccentricity (e) | 0.4337 | ± 0.005 |
Inclination (i) | 22.2° | ± 1.9 |
Longitude of periastron (ω) | 286.2° | ± 4.3 |
| Node (Ω) | 232.5° | ± 4.8 |
Notes | | |
Reference | Tok2024a | |
| Equinox | 2000 | |
Last observation | 2023 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
100.9 |
0.091 |
| 2001 |
204.3 |
0.089 |
| 2002 |
262.4 |
0.132 |
| 2003 |
293.7 |
0.164 |
| 2004 |
316.2 |
0.184 |
| 2005 |
335.2 |
0.195 |
| 2006 |
353.1 |
0.195 |
| 2007 |
12.2 |
0.183 |
| 2008 |
35.9 |
0.156 |
| 2009 |
74.6 |
0.111 |
| 2010 |
164.7 |
0.078 |
| 2011 |
245.0 |
0.116 |
| 2012 |
283.1 |
0.153 |
| 2013 |
308.1 |
0.178 |
| 2014 |
328.0 |
0.192 |
| 2015 |
346.1 |
0.196 |
| 2016 |
4.5 |
0.189 |
| 2017 |
25.8 |
0.168 |
| 2018 |
56.3 |
0.131 |
| 2019 |
121.3 |
0.082 |
| 2020 |
221.7 |
0.099 |
| 2021 |
270.6 |
0.140 |
| 2022 |
299.2 |
0.169 |
| 2023 |
320.6 |
0.187 |
| 2024 |
339.2 |
0.196 |
| 2025 |
357.2 |
0.193 |
| 2026 |
16.9 |
0.178 |
| 2027 |
42.5 |
0.148 |
| 2028 |
88.3 |
0.100 |
| 2029 |
188.6 |
0.083 |
| 2030 |
255.5 |
0.125 |
| 2031 |
289.3 |
0.159 |
| 2032 |
312.8 |
0.182 |
| 2033 |
332.1 |
0.194 |
| 2034 |
350.1 |
0.195 |
| 2035 |
8.8 |
0.186 |
| 2036 |
31.4 |
0.162 |
| 2037 |
66.0 |
0.120 |
| 2038 |
145.5 |
0.077 |
| 2039 |
235.9 |
0.109 |
| 2040 |
278.0 |
0.148 |
| 2041 |
304.4 |
0.174 |
| 2042 |
324.9 |
0.190 |
| 2043 |
343.1 |
0.196 |
| 2044 |
1.3 |
0.191 |
| 2045 |
21.8 |
0.173 |
| 2046 |
50.0 |
0.138 |
| 2047 |
105.6 |
0.089 |
| 2048 |
208.9 |
0.091 |
| 2049 |
264.5 |
0.134 |
| 2050 |
295.1 |
0.165 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
|
|
