11218-1313 FME 1
11h 21m 49.26s -13° 13' 08.4" P.A. 117.00 sep 0.2 mag 11.90,15.70 Sp M8V+L7.5V
| Coord 2000 |
11218-1313 |
|
Discov num |
FME 1 |
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Comp |
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Coord arcsec 2000 |
11 21 49.26 -13 13 08.4 |
|
| Date first |
1997 |
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Date last |
2014 |
|
Obs |
36 |
|
| Pa first |
87 |
|
Pa last |
116.6 |
|
P.A. Now (θ) |
43.4° |
|
| Sep first |
0.3 |
|
Sep last |
0.246 |
|
Sep. Now (ρ) |
0.18" |
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| Mag pri |
11.90 |
|
Mag sec |
15.70 |
|
delta mag (ΔM) |
3.8 |
|
Spectral class |
M8V+L7.5V (red/very deep red) |
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| Pri motion ra |
-293 |
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Sec motion ra |
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| Pri motion dec |
-416 |
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Sec motion dec |
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| Notes |
N
O
V
(See Notes, Orbital solution, Proper motion indicates physical) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
ORBITAL ELEMENTS
| Period (P) | 14.36y | ± 0.05 |
Periastron (T) | 59092d (2020.664y) | ± 23 |
Semi-major axis (a) | 214.6m | ± 0.8 |
| Eccentricity (e) | 0.353 | ± 0.003 |
Inclination (i) | 42.41° | ± 0.29 |
Longitude of periastron (ω) | 221.5° | ± 1.3 |
| Node (Ω) | 74.4° | ± 0.8 |
Notes | n | |
Reference | Dup2017 | |
| Equinox | 2000 | |
Last observation | 2014 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
118.6 |
0.242 |
| 2001 |
133.7 |
0.217 |
| 2002 |
152.9 |
0.192 |
| 2003 |
177.2 |
0.173 |
| 2004 |
205.7 |
0.163 |
| 2005 |
236.5 |
0.157 |
| 2006 |
273.1 |
0.135 |
| 2007 |
329.7 |
0.110 |
| 2008 |
23.8 |
0.144 |
| 2009 |
51.4 |
0.199 |
| 2010 |
67.8 |
0.241 |
| 2011 |
80.1 |
0.265 |
| 2012 |
91.1 |
0.272 |
| 2013 |
102.0 |
0.267 |
| 2014 |
113.9 |
0.250 |
| 2015 |
127.9 |
0.227 |
| 2016 |
145.4 |
0.201 |
| 2017 |
167.8 |
0.178 |
| 2018 |
195.1 |
0.166 |
| 2019 |
225.2 |
0.160 |
| 2020 |
258.5 |
0.146 |
| 2021 |
306.5 |
0.114 |
| 2022 |
8.0 |
0.126 |
| 2023 |
43.4 |
0.180 |
| 2024 |
62.6 |
0.228 |
| 2025 |
75.9 |
0.258 |
| 2026 |
87.2 |
0.271 |
| 2027 |
98.0 |
0.270 |
| 2028 |
109.4 |
0.257 |
| 2029 |
122.5 |
0.236 |
| 2030 |
138.6 |
0.210 |
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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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