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 |
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Coord arcsec 2000 |
11 26 45.32 +03 00 47.2 |
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Date first |
1780 |
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Date last |
2019 |
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Obs |
145 |
|
Pa first |
145 |
|
Pa last |
145.7 |
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P.A. Now (θ) |
145.7° |
|
Sep first |
29.1 |
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Sep last |
28.603 |
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Sep. Now (ρ) |
28.603" |
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Mag pri |
6.55 |
|
Mag sec |
7.50 |
|
delta mag (ΔM) |
0.95 |
|
Spectral class |
G7V (yellow) |
|
Pri motion ra |
-726 |
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Sec motion ra |
-728 |
|
Pri motion dec |
+181 |
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Sec motion dec |
+189 |
|
Notes |
N
O
T
(See Notes, Orbital solution, Parallax indicates physical) |
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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 |
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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 |
|
GL |
Gl 429A |
|
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 |
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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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