15031+4439 CHR 43 (HD 133484)
15h 03m 06.63s +44° 38' 39.9" P.A. 281.00 sep 0.5 mag 6.80,9.20 Sp F6IV dist. 55.65 pc (181.53 l.y.)
Coord 2000 |
15031+4439 |
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Discov num |
CHR 43 |
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Comp |
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Coord arcsec 2000 |
15 03 06.63 +44 38 39.9 |
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Date first |
1985 |
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Date last |
2019 |
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Obs |
16 |
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Pa first |
85 |
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Pa last |
281.4 |
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P.A. Now (θ) |
281.4° |
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Sep first |
0.2 |
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Sep last |
0.46 |
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Sep. Now (ρ) |
0.46" |
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Mag pri |
6.80 |
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Mag sec |
9.20 |
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delta mag (ΔM) |
2.4 |
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Spectral class |
F6IV (yellow-white) |
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Pri motion ra |
-093 |
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Sec motion ra |
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Pri motion dec |
+024 |
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Sec motion dec |
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Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 133484 |
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Constellation |
Bootes |
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SAO |
45348 |
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HIP |
73637 |
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Tycho2 |
3050-00175-1 |
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Gaia DR2 |
1586138058138639616 |
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HD |
133484 |
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HR |
5612 |
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GC |
20258 |
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BD |
BD+45 2251 |
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FK5 |
3192 |
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Distance |
55.65 |
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Distance ly |
181.53 |
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ORBITAL ELEMENTS
Period (P) | 170.88y | ± 8.91 |
Periastron (T) | 1999.39y | ± 2.81 |
Semi-major axis (a) | 0.626a | ± 0.047 |
Eccentricity (e) | 0.586 | ± 0.028 |
Inclination (i) | 73.9° | ± 2.8 |
Longitude of periastron (ω) | 347.1° | ± 13.2 |
Node (Ω) | 222.2° | ± 4.9 |
Notes | | |
Reference | Hrt2009 | |
Equinox | | |
Last observation | 2007 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
220.3 |
0.258 |
2001 |
223.0 |
0.263 |
2002 |
225.7 |
0.263 |
2003 |
228.4 |
0.259 |
2004 |
231.3 |
0.252 |
2005 |
234.3 |
0.242 |
2006 |
237.6 |
0.230 |
2007 |
241.3 |
0.217 |
2008 |
245.5 |
0.202 |
2009 |
250.5 |
0.187 |
2010 |
256.3 |
0.172 |
2011 |
263.1 |
0.158 |
2012 |
271.2 |
0.146 |
2013 |
280.5 |
0.136 |
2014 |
291.0 |
0.131 |
2015 |
302.1 |
0.129 |
2016 |
313.1 |
0.132 |
2017 |
323.3 |
0.138 |
2018 |
332.4 |
0.149 |
2019 |
340.1 |
0.162 |
2020 |
346.6 |
0.177 |
2021 |
351.9 |
0.194 |
2022 |
356.5 |
0.212 |
2023 |
0.3 |
0.231 |
2024 |
3.5 |
0.250 |
2025 |
6.2 |
0.269 |
2026 |
8.6 |
0.289 |
2027 |
10.7 |
0.308 |
2028 |
12.6 |
0.328 |
2029 |
14.2 |
0.347 |
2030 |
15.6 |
0.366 |
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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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