22522-1730 RED 12
22h 52m 10.73s -17° 30' 13.4" P.A. 358.00 sep 0.1 mag 15.43,16.55 Sp L6+T3.5
| Coord 2000 |
22522-1730 |
|
Discov num |
RED 12 |
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Comp |
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Coord arcsec 2000 |
22 52 10.73 -17 30 13.4 |
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| Date first |
2005 |
|
Date last |
2013 |
|
Obs |
13 |
|
| Pa first |
354 |
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Pa last |
358.2 |
|
P.A. Now (θ) |
354.5° |
|
| Sep first |
0.1 |
|
Sep last |
0.142 |
|
Sep. Now (ρ) |
0.132" |
|
| Mag pri |
15.43 |
|
Mag sec |
16.55 |
|
delta mag (ΔM) |
1.12 |
|
Spectral class |
L6+T3.5 (very deep red/brown dwarf) |
|
| Pri motion ra |
+405 |
|
Sec motion ra |
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| Pri motion dec |
+154 |
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Sec motion dec |
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| Notes |
N
O
K
(See Notes, Orbital solution, K-band or other infrared magnitudes) |
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Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
ORBITAL ELEMENTS
| Period (P) | 8.832y | ± 0.027 |
Periastron (T) | 60727d (2025.141y) | ± 23 |
Semi-major axis (a) | 123.2m | ± 0.8 |
| Eccentricity (e) | 0.335 | ± 0.009 |
Inclination (i) | 108.8° | ± 0.5 |
Longitude of periastron (ω) | 314.6° | ± 1.2 |
| Node (Ω) | 178° | ± 0.3 |
Notes | n | |
Reference | Dup2017 | |
| Equinox | | |
Last observation | 2013 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
158.3 |
0.079 |
| 2001 |
103.2 |
0.046 |
| 2002 |
37.9 |
0.074 |
| 2003 |
16.9 |
0.119 |
| 2004 |
6.4 |
0.146 |
| 2005 |
357.8 |
0.143 |
| 2006 |
345.0 |
0.096 |
| 2007 |
253.3 |
0.029 |
| 2008 |
178.7 |
0.088 |
| 2009 |
152.9 |
0.073 |
| 2010 |
88.3 |
0.046 |
| 2011 |
32.7 |
0.082 |
| 2012 |
14.8 |
0.125 |
| 2013 |
5.0 |
0.148 |
| 2014 |
356.2 |
0.138 |
| 2015 |
341.1 |
0.084 |
| 2016 |
222.4 |
0.037 |
| 2017 |
174.7 |
0.091 |
| 2018 |
146.4 |
0.066 |
| 2019 |
74.2 |
0.049 |
| 2020 |
28.4 |
0.090 |
| 2021 |
12.9 |
0.131 |
| 2022 |
3.6 |
0.149 |
| 2023 |
354.5 |
0.132 |
| 2024 |
335.7 |
0.070 |
| 2025 |
204.9 |
0.050 |
| 2026 |
170.9 |
0.091 |
| 2027 |
138.4 |
0.060 |
| 2028 |
61.9 |
0.053 |
| 2029 |
24.8 |
0.098 |
| 2030 |
11.1 |
0.136 |
| 2031 |
2.1 |
0.149 |
| 2032 |
352.6 |
0.125 |
| 2033 |
327.6 |
0.056 |
| 2034 |
194.8 |
0.063 |
| 2035 |
167.0 |
0.088 |
| 2036 |
128.5 |
0.054 |
| 2037 |
51.9 |
0.059 |
| 2038 |
21.8 |
0.106 |
| 2039 |
9.4 |
0.140 |
| 2040 |
0.7 |
0.148 |
| 2041 |
350.4 |
0.117 |
| 2042 |
314.0 |
0.042 |
| 2043 |
188.0 |
0.074 |
| 2044 |
162.8 |
0.084 |
| 2045 |
116.5 |
0.049 |
| 2046 |
44.0 |
0.067 |
| 2047 |
19.1 |
0.113 |
| 2048 |
7.9 |
0.144 |
| 2049 |
359.2 |
0.146 |
| 2050 |
347.9 |
0.107 |
|
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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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