11268+0301 STF 1540 AB (83 Leo)
11h 26m 45.32s +03° 00' 47.2" P.A. 146.00 sep 28.6 mag 6.55,7.50 Sp G7V dist. 17.75 pc (57.9 l.y.)
| Coord 2000 |
11268+0301 |
|
Discov num |
STF1540 |
|
Comp |
AB |
|
Coord arcsec 2000 |
11 26 45.32 +03 00 47.2 |
|
| Date first |
1780 |
|
Date last |
2019 |
|
Obs |
145 |
|
| Pa first |
145 |
|
Pa last |
145.7 |
|
P.A. Now (θ) |
145.7° |
|
| Sep first |
29.1 |
|
Sep last |
28.603 |
|
Sep. Now (ρ) |
28.603" |
|
| Mag pri |
6.55 |
|
Mag sec |
7.50 |
|
delta mag (ΔM) |
0.95 |
|
Spectral class |
G7V (yellow) |
|
| Pri motion ra |
-726 |
|
Sec motion ra |
-728 |
|
| Pri motion dec |
+181 |
|
Sec motion dec |
+189 |
|
| Notes |
N
O
T
(See Notes, Orbital solution, Parallax indicates physical) |
|
rPM=0.011 (< 0.3, Physical double)
This double is physical.
11268+0301 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
83 Leo |
118864 |
11 26 45 +03 00 47 |
STF 1540 AB |
2019 |
145 |
146 |
28.6 |
6.55 |
7.50 |
0.95 |
Y |
<=== |
| Show |
|
118864 |
11 26 45 +03 00 47 |
STF 1540 AC |
2016 |
7 |
191 |
205.2 |
6.55 |
11.13 |
4.58 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
83 Leo |
|
Constellation |
Leo |
|
SAO |
118864 |
|
HIP |
55846 |
|
| Tycho2 |
0267-01191-1 |
|
HD |
99491 |
|
HR |
4414 |
|
GC |
15705 |
|
| ADS |
8162 |
|
BD |
BD+03 2502 |
|
Flamsteed |
83 Leonis |
|
Flamsteed name |
83 Leo |
|
| FK5 |
1296 |
|
Distance |
17.75 |
|
Distance ly |
57.9 |
|
ORBITAL ELEMENTS
| Period (P) | 320c | |
Periastron (T) | 5200y | |
Semi-major axis (a) | 40.76a | |
| Eccentricity (e) | 0.46 | |
Inclination (i) | 126.6° | |
Longitude of periastron (ω) | 112.9° | |
| Node (Ω) | 164.3° | |
Notes | n | |
Reference | Hop1960a | |
| Equinox | 1900 | |
Last observation | 1959 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
146.9 |
28.723 |
| 2001 |
146.9 |
28.716 |
| 2002 |
146.9 |
28.710 |
| 2003 |
146.9 |
28.703 |
| 2004 |
146.9 |
28.697 |
| 2005 |
146.9 |
28.690 |
| 2006 |
146.9 |
28.684 |
| 2007 |
146.9 |
28.677 |
| 2008 |
146.8 |
28.671 |
| 2009 |
146.8 |
28.664 |
| 2010 |
146.8 |
28.658 |
| 2011 |
146.8 |
28.651 |
| 2012 |
146.8 |
28.645 |
| 2013 |
146.8 |
28.638 |
| 2014 |
146.8 |
28.632 |
| 2015 |
146.8 |
28.625 |
| 2016 |
146.8 |
28.619 |
| 2017 |
146.7 |
28.612 |
| 2018 |
146.7 |
28.606 |
| 2019 |
146.7 |
28.599 |
| 2020 |
146.7 |
28.593 |
| 2021 |
146.7 |
28.586 |
| 2022 |
146.7 |
28.579 |
| 2023 |
146.7 |
28.573 |
| 2024 |
146.7 |
28.566 |
| 2025 |
146.6 |
28.560 |
| 2026 |
146.6 |
28.553 |
| 2027 |
146.6 |
28.547 |
| 2028 |
146.6 |
28.540 |
| 2029 |
146.6 |
28.534 |
| 2030 |
146.6 |
28.527 |
| 2031 |
146.6 |
28.521 |
| 2032 |
146.6 |
28.514 |
| 2033 |
146.5 |
28.507 |
| 2034 |
146.5 |
28.501 |
| 2035 |
146.5 |
28.494 |
| 2036 |
146.5 |
28.488 |
| 2037 |
146.5 |
28.481 |
| 2038 |
146.5 |
28.475 |
| 2039 |
146.5 |
28.468 |
| 2040 |
146.5 |
28.462 |
| 2041 |
146.4 |
28.455 |
| 2042 |
146.4 |
28.449 |
| 2043 |
146.4 |
28.442 |
| 2044 |
146.4 |
28.435 |
| 2045 |
146.4 |
28.429 |
| 2046 |
146.4 |
28.422 |
| 2047 |
146.4 |
28.416 |
| 2048 |
146.4 |
28.409 |
| 2049 |
146.4 |
28.403 |
| 2050 |
146.3 |
28.396 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
|
|
