00247-2653 LEI 1 BC
00h 24m 44.24s -27° 08' 26.5" P.A. 183.00 sep 0.5 mag 18.69,19.07 Sp M8.5V+M9V
| Coord 2000 |
00247-2653 |
|
Discov num |
LEI 1 |
|
Comp |
BC |
|
Coord arcsec 2000 |
00 24 44.24 -27 08 26.5 |
|
| Date first |
1993 |
|
Date last |
2021 |
|
Obs |
84 |
|
| Pa first |
330 |
|
Pa last |
183 |
|
P.A. Now (θ) |
198.4° |
|
| Sep first |
0.3 |
|
Sep last |
0.457 |
|
Sep. Now (ρ) |
0.449" |
|
| Mag pri |
18.69 |
|
Mag sec |
19.07 |
|
delta mag (ΔM) |
0.38 |
|
Spectral class |
M8.5V+M9V (red/red) |
|
| Pri motion ra |
-055 |
|
Sec motion ra |
-055 |
|
| Pri motion dec |
+612 |
|
Sec motion dec |
+612 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
00247-2653 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
00 24 44 -27 08 25 |
HEN 5 Aa,Ab |
1998 |
0 |
-1 |
0.1 |
15.50 |
18.00 |
2.50 |
|
|
| Show |
|
|
00 24 44 -27 08 25 |
LEI 1 AB |
2021 |
70 |
62 |
0.9 |
15.40 |
18.69 |
3.29 |
|
|
| Show |
|
|
00 24 44 -27 08 25 |
LEI 1 AC |
2010 |
3 |
23 |
1.5 |
15.40 |
19.07 |
3.67 |
|
|
| Show |
|
|
00 24 44 -27 08 26 |
LEI 1 BC |
2021 |
84 |
183 |
0.5 |
18.69 |
19.07 |
0.38 |
Y |
<=== |
Quadruple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
ORBITAL ELEMENTS
| Period (P) | 17.247y | ± 0.016 |
Periastron (T) | 2006.44y | ± 0.007 |
Semi-major axis (a) | 0.4598a | ± 0.0007 |
| Eccentricity (e) | 0.0172 | ± 0.0008 |
Inclination (i) | 62.04° | ± 0.11 |
Longitude of periastron (ω) | 202.53° | |
| Node (Ω) | 14.82° | ± 0.12 |
Notes | n | |
Reference | Tok2018j | |
| Equinox | | |
Last observation | 2017 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
62.3 |
0.272 |
| 2001 |
98.8 |
0.218 |
| 2002 |
139.4 |
0.249 |
| 2003 |
164.6 |
0.332 |
| 2004 |
179.7 |
0.408 |
| 2005 |
190.8 |
0.449 |
| 2006 |
201.0 |
0.443 |
| 2007 |
212.8 |
0.391 |
| 2008 |
229.8 |
0.308 |
| 2009 |
259.6 |
0.230 |
| 2010 |
303.0 |
0.223 |
| 2011 |
335.4 |
0.295 |
| 2012 |
353.6 |
0.383 |
| 2013 |
5.5 |
0.446 |
| 2014 |
15.3 |
0.467 |
| 2015 |
25.2 |
0.443 |
| 2016 |
37.3 |
0.379 |
| 2017 |
55.9 |
0.293 |
| 2018 |
88.4 |
0.225 |
| 2019 |
130.6 |
0.234 |
| 2020 |
159.7 |
0.310 |
| 2021 |
176.5 |
0.392 |
| 2022 |
188.2 |
0.443 |
| 2023 |
198.4 |
0.449 |
| 2024 |
209.6 |
0.408 |
| 2025 |
224.8 |
0.330 |
| 2026 |
250.6 |
0.246 |
| 2027 |
292.3 |
0.216 |
| 2028 |
329.0 |
0.274 |
| 2029 |
349.9 |
0.362 |
| 2030 |
2.9 |
0.433 |
|
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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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