00247-2653 LEI 1 AB
00h 24m 44.22s -27° 08' 25.0" P.A. 62.00 sep 0.9 mag 15.40,18.69 Sp M5.5V+M9V
| Coord 2000 |
00247-2653 |
|
Discov num |
LEI 1 |
|
Comp |
AB |
|
Coord arcsec 2000 |
00 24 44.22 -27 08 25.0 |
|
| Date first |
1993 |
|
Date last |
2021 |
|
Obs |
70 |
|
| Pa first |
353 |
|
Pa last |
62.3 |
|
P.A. Now (θ) |
62.3° |
|
| Sep first |
1.1 |
|
Sep last |
0.891 |
|
Sep. Now (ρ) |
0.891" |
|
| Mag pri |
15.40 |
|
Mag sec |
18.69 |
|
delta mag (ΔM) |
3.29 |
|
Spectral class |
M5.5V+M9V (red/red) |
|
| Pri motion ra |
-093 |
|
Sec motion ra |
-055 |
|
| Pri motion dec |
+696 |
|
Sec motion dec |
+612 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
rPM=0.131 (< 0.3, Physical double)
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
SUSPECTED ORBITAL ELEMENTS
| Identifier | 00247-2653 LEI 1 A,BC |
| coord_arcsec_2000 | 002444.25-270827.9 |
| Period (P) | 44.4y | ± 7.2 |
Periastron (T) | 59727.9d (2022.405y) | ± 3.4 |
Semi-major axis (a) | 1.1116a | ± 0.001 |
| Eccentricity (e) | 0.52 | ± 0.0016 |
Inclination (i) | 54.75° | ± 0.5 |
Longitude of periastron (ω) | 147.61° | ± 4.25 |
| Node (Ω) | 26.8° | ± 0.08 |
Notes | n | |
Reference | Koh2012 | |
| Equinox | 2000 | |
Last observation | 2008 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
6.3 |
1.513 |
| 2001 |
8.4 |
1.541 |
| 2002 |
10.4 |
1.562 |
| 2003 |
12.4 |
1.576 |
| 2004 |
14.4 |
1.582 |
| 2005 |
16.4 |
1.581 |
| 2006 |
18.4 |
1.571 |
| 2007 |
20.4 |
1.553 |
| 2008 |
22.5 |
1.526 |
| 2009 |
24.6 |
1.490 |
| 2010 |
26.9 |
1.443 |
| 2011 |
29.4 |
1.386 |
| 2012 |
32.1 |
1.317 |
| 2013 |
35.1 |
1.236 |
| 2014 |
38.6 |
1.142 |
| 2015 |
42.8 |
1.034 |
| 2016 |
48.0 |
0.912 |
| 2017 |
55.0 |
0.777 |
| 2018 |
65.0 |
0.633 |
| 2019 |
81.0 |
0.489 |
| 2020 |
108.2 |
0.381 |
| 2021 |
145.7 |
0.364 |
| 2022 |
177.2 |
0.441 |
| 2023 |
198.2 |
0.531 |
| 2024 |
213.9 |
0.583 |
| 2025 |
228.0 |
0.597 |
| 2026 |
242.0 |
0.592 |
| 2027 |
256.3 |
0.585 |
| 2028 |
270.7 |
0.589 |
| 2029 |
284.5 |
0.611 |
| 2030 |
297.0 |
0.650 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
