03006+4753 A 1529 (HD 18549)
03h 00m 37.99s +47° 53' 06.4" P.A. 167.00 sep 0.3 mag 8.10,9.68 Sp A2 dist. 336.7 pc (1098.32 l.y.)
Coord 2000 |
03006+4753 |
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Discov num |
A 1529 |
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Comp |
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Coord arcsec 2000 |
03 00 37.99 +47 53 06.4 |
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Date first |
1907 |
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Date last |
2008 |
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Obs |
21 |
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Pa first |
166 |
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Pa last |
167.3 |
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P.A. Now (θ) |
167.3° |
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Sep first |
0.3 |
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Sep last |
0.311 |
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Sep. Now (ρ) |
0.311" |
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Mag pri |
8.10 |
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Mag sec |
9.68 |
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delta mag (ΔM) |
1.58 |
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Spectral class |
A2 (white) |
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Pri motion ra |
-008 |
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Sec motion ra |
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Pri motion dec |
-012 |
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Sec motion dec |
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Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 18549 |
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Constellation |
Perseus |
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SAO |
38504 |
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HIP |
14029 |
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Tycho2 |
3314-01458-1 |
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Gaia DR2 |
434579192038469248 |
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HD |
18549 |
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ADS |
2271 |
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BD |
BD+47 752 |
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Distance |
336.7 |
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Distance ly |
1098.32 |
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ORBITAL ELEMENTS
Period (P) | 105.48y | ± 2 |
Periastron (T) | 1966y | ± 5 |
Semi-major axis (a) | 0.159a | ± 0.005 |
Eccentricity (e) | 0.731 | ± 0.1 |
Inclination (i) | 98° | ± 0.5 |
Longitude of periastron (ω) | 208.1° | ± 1.5 |
Node (Ω) | 165.4° | ± 3 |
Notes | n | |
Reference | Tam2006 | |
Equinox | 2000 | |
Last observation | 2004 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
163.6 |
0.245 |
2001 |
163.5 |
0.246 |
2002 |
163.3 |
0.248 |
2003 |
163.2 |
0.249 |
2004 |
163.1 |
0.250 |
2005 |
163.0 |
0.251 |
2006 |
162.8 |
0.251 |
2007 |
162.7 |
0.252 |
2008 |
162.6 |
0.252 |
2009 |
162.4 |
0.252 |
2010 |
162.3 |
0.252 |
2011 |
162.2 |
0.252 |
2012 |
162.0 |
0.251 |
2013 |
161.9 |
0.251 |
2014 |
161.8 |
0.250 |
2015 |
161.7 |
0.249 |
2016 |
161.5 |
0.248 |
2017 |
161.4 |
0.246 |
2018 |
161.3 |
0.245 |
2019 |
161.1 |
0.243 |
2020 |
161.0 |
0.241 |
2021 |
160.8 |
0.239 |
2022 |
160.7 |
0.237 |
2023 |
160.5 |
0.235 |
2024 |
160.4 |
0.232 |
2025 |
160.2 |
0.229 |
2026 |
160.1 |
0.227 |
2027 |
159.9 |
0.224 |
2028 |
159.8 |
0.221 |
2029 |
159.6 |
0.217 |
2030 |
159.4 |
0.214 |
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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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