02460-0457 BU 83 AB (HD 17251)
02h 45m 59.63s -04° 57' 23.2" P.A. 10.00 sep 1.0 mag 7.73,9.64 Sp F2 dist. 75.87 pc (247.49 l.y.)
Coord 2000 |
02460-0457 |
|
Discov num |
BU 83 |
|
Comp |
AB |
|
Coord arcsec 2000 |
02 45 59.63 -04 57 23.2 |
|
Date first |
1872 |
|
Date last |
2021 |
|
Obs |
75 |
|
Pa first |
125 |
|
Pa last |
9.9 |
|
P.A. Now (θ) |
9.9° |
|
Sep first |
1.0 |
|
Sep last |
1.005 |
|
Sep. Now (ρ) |
1.005" |
|
Mag pri |
7.73 |
|
Mag sec |
9.64 |
|
delta mag (ΔM) |
1.91 |
|
Spectral class |
F2 (yellow-white) |
|
Pri motion ra |
+050 |
|
Sec motion ra |
+050 |
|
Pri motion dec |
+002 |
|
Sec motion dec |
+002 |
|
Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
02460-0457 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 17251 |
130100 |
02 45 60 -04 57 23 |
BU 83 AB |
2021 |
75 |
10 |
1.0 |
7.73 |
9.64 |
1.91 |
Y |
<=== |
Show |
|
|
02 45 60 -04 57 23 |
BU 83 Ba,Bb |
2021 |
9 |
270 |
0.2 |
7.80 |
12.10 |
4.30 |
|
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Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 17251 |
|
Constellation |
Eridanus |
|
SAO |
130100 |
|
HIP |
12912 |
|
Tycho2 |
4702-00556-1 |
|
Gaia DR2 |
5184938090858917504 |
|
HD |
17251 |
|
ADS |
2111 |
|
BD |
BD-05 514 |
|
Distance |
75.87 |
|
Distance ly |
247.49 |
|
SUSPECTED ORBITAL ELEMENTS
SUSPECTED ORBITAL ELEMENTS SOLUTION #1
Identifier | 02460-0457 BU 83 Aa,Ab |
coord_arcsec_2000 | 024559.63-045723.2 |
Period (P) | 36y | |
Periastron (T) | 1900.5y | |
Semi-major axis (a) | 0.08a | |
Eccentricity (e) | 0.15 | |
Inclination (i) | 50° | |
Longitude of periastron (ω) | 280° | |
Node (Ω) | 110° | |
Notes | n | |
Reference | Dom1972a | |
Equinox | 1900 | |
Last observation | 1968 | |
Grade | 9 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
288.6 |
0.081 |
2001 |
295.0 |
0.078 |
2002 |
302.0 |
0.074 |
2003 |
309.9 |
0.069 |
2004 |
319.3 |
0.063 |
2005 |
330.9 |
0.056 |
2006 |
345.7 |
0.050 |
2007 |
4.0 |
0.045 |
2008 |
24.9 |
0.044 |
2009 |
45.2 |
0.046 |
2010 |
62.4 |
0.051 |
2011 |
76.1 |
0.058 |
2012 |
87.0 |
0.064 |
2013 |
96.0 |
0.070 |
2014 |
103.9 |
0.074 |
2015 |
111.1 |
0.077 |
2016 |
117.9 |
0.078 |
2017 |
124.7 |
0.077 |
2018 |
131.6 |
0.076 |
2019 |
138.9 |
0.073 |
2020 |
146.8 |
0.070 |
2021 |
155.4 |
0.067 |
2022 |
164.9 |
0.064 |
2023 |
175.3 |
0.061 |
2024 |
186.4 |
0.060 |
2025 |
198.1 |
0.059 |
2026 |
209.7 |
0.060 |
2027 |
220.8 |
0.061 |
2028 |
231.2 |
0.064 |
2029 |
240.5 |
0.068 |
2030 |
249.0 |
0.071 |
|
|
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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SUSPECTED ORBITAL ELEMENTS
SUSPECTED ORBITAL ELEMENTS SOLUTION #2
Identifier | 02460-0457 BU 83 |
coord_arcsec_2000 | 024559.63-045723.2 |
Period (P) | 716.26y | |
Periastron (T) | 2418.03y | |
Semi-major axis (a) | 2.38a | |
Eccentricity (e) | 0.51 | |
Inclination (i) | 101.4° | |
Longitude of periastron (ω) | 290.2° | |
Node (Ω) | 147.7° | |
Notes | n | |
Reference | Hrt2011d | |
Equinox | 2000 | |
Last observation | 2010 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
20.0 |
0.869 |
2001 |
19.4 |
0.877 |
2002 |
18.7 |
0.885 |
2003 |
18.1 |
0.893 |
2004 |
17.5 |
0.901 |
2005 |
16.9 |
0.909 |
2006 |
16.4 |
0.917 |
2007 |
15.8 |
0.925 |
2008 |
15.2 |
0.933 |
2009 |
14.7 |
0.941 |
2010 |
14.1 |
0.950 |
2011 |
13.6 |
0.958 |
2012 |
13.1 |
0.967 |
2013 |
12.6 |
0.975 |
2014 |
12.1 |
0.984 |
2015 |
11.6 |
0.992 |
2016 |
11.1 |
1.001 |
2017 |
10.6 |
1.010 |
2018 |
10.1 |
1.019 |
2019 |
9.7 |
1.028 |
2020 |
9.2 |
1.036 |
2021 |
8.8 |
1.045 |
2022 |
8.3 |
1.054 |
2023 |
7.9 |
1.063 |
2024 |
7.5 |
1.072 |
2025 |
7.1 |
1.081 |
2026 |
6.6 |
1.091 |
2027 |
6.2 |
1.100 |
2028 |
5.8 |
1.109 |
2029 |
5.5 |
1.118 |
2030 |
5.1 |
1.127 |
|
|
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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