03575-0110 BU 543 (HD 24916)
03h 57m 28.70s -01° 09' 34.0" P.A. 14.00 sep 11.0 mag 8.21,11.45 Sp K4V dist. 15.53 pc (50.66 l.y.)
Coord 2000 |
03575-0110 |
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Discov num |
BU 543 |
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Comp |
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Coord arcsec 2000 |
03 57 28.70 -01 09 34.0 |
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Date first |
1877 |
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Date last |
2016 |
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Obs |
43 |
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Pa first |
32 |
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Pa last |
14.1 |
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P.A. Now (θ) |
14.1° |
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Sep first |
11.2 |
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Sep last |
10.968 |
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Sep. Now (ρ) |
10.968" |
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Mag pri |
8.21 |
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Mag sec |
11.45 |
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delta mag (ΔM) |
3.24 |
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Spectral class |
K4V (yellow-orange) |
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Pri motion ra |
-182 |
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Sec motion ra |
-182 |
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Pri motion dec |
-142 |
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Sec motion dec |
-139 |
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Notes |
N
O
(See Notes, Orbital solution) |
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rPM=0.013 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 24916 |
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Constellation |
Eridanus |
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SAO |
130840 |
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HIP |
18512 |
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Tycho2 |
4718-00032-1 |
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Gaia DR2 |
3256334497479041024 |
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HD |
24916 |
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GC |
4769 |
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ADS |
2894 |
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GL |
Gl 157A |
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BD |
BD-01 565 |
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Distance |
15.53 |
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Distance ly |
50.66 |
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ORBITAL ELEMENTS
Period (P) | 2243.4236y | ± 885.1726 |
Periastron (T) | 1665.2919y | ± 520.2125 |
Semi-major axis (a) | 23.4402a | ± 11.72222 |
Eccentricity (e) | 0.81188 | ± 0.14587 |
Inclination (i) | 106.765° | ± 8.831 |
Longitude of periastron (ω) | 282.419° | ± 19.416 |
Node (Ω) | 57.599° | ± 63.8 |
Notes | n | |
Reference | Izm2019 | |
Equinox | | |
Last observation | 2015 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
16.1 |
11.011 |
2001 |
16.0 |
11.009 |
2002 |
15.9 |
11.006 |
2003 |
15.7 |
11.003 |
2004 |
15.6 |
11.000 |
2005 |
15.5 |
10.997 |
2006 |
15.4 |
10.994 |
2007 |
15.2 |
10.991 |
2008 |
15.1 |
10.988 |
2009 |
15.0 |
10.985 |
2010 |
14.9 |
10.982 |
2011 |
14.7 |
10.979 |
2012 |
14.6 |
10.976 |
2013 |
14.5 |
10.973 |
2014 |
14.4 |
10.970 |
2015 |
14.3 |
10.967 |
2016 |
14.1 |
10.965 |
2017 |
14.0 |
10.962 |
2018 |
13.9 |
10.959 |
2019 |
13.8 |
10.956 |
2020 |
13.6 |
10.953 |
2021 |
13.5 |
10.950 |
2022 |
13.4 |
10.947 |
2023 |
13.3 |
10.944 |
2024 |
13.1 |
10.941 |
2025 |
13.0 |
10.938 |
2026 |
12.9 |
10.935 |
2027 |
12.8 |
10.932 |
2028 |
12.6 |
10.929 |
2029 |
12.5 |
10.926 |
2030 |
12.4 |
10.923 |
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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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