00583+2124 BU 302 (HD 5641)
00h 58m 18.89s +21° 24' 16.2" P.A. 231.00 sep 0.3 mag 6.60,8.77 Sp A2V dist. 129.7 pc (423.08 l.y.)
Coord 2000 |
00583+2124 |
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Discov num |
BU 302 |
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Comp |
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Coord arcsec 2000 |
00 58 18.89 +21 24 16.2 |
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Date first |
1875 |
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Date last |
2017 |
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Obs |
127 |
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Pa first |
94 |
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Pa last |
230.8 |
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P.A. Now (θ) |
230.8° |
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Sep first |
0.7 |
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Sep last |
0.3 |
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Sep. Now (ρ) |
0.3" |
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Mag pri |
6.60 |
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Mag sec |
8.77 |
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delta mag (ΔM) |
2.17 |
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Spectral class |
A2V (white) |
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Pri motion ra |
-013 |
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Sec motion ra |
-013 |
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Pri motion dec |
-001 |
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Sec motion dec |
-001 |
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Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 5641 |
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Constellation |
Pisces |
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SAO |
74402 |
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HIP |
4558 |
|
Tycho2 |
1195-01109-1 |
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Gaia DR2 |
2789889882217773568 |
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HD |
5641 |
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HR |
277 |
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GC |
1160 |
|
ADS |
805 |
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BD |
BD+20 131 |
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Distance |
129.7 |
|
Distance ly |
423.08 |
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ORBITAL ELEMENTS
Period (P) | 331.97y | ± 3.33 |
Periastron (T) | 2017.54y | ± 2.99 |
Semi-major axis (a) | 0.651a | ± 0.046 |
Eccentricity (e) | 0.665 | ± 0.028 |
Inclination (i) | 48.1° | ± 1.2 |
Longitude of periastron (ω) | 252.2° | ± 3.7 |
Node (Ω) | 17.2° | ± 2.2 |
Notes | | |
Reference | Cve2006e | |
Equinox | 2000 | |
Last observation | 1999 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
186.5 |
0.347 |
2001 |
188.5 |
0.339 |
2002 |
190.5 |
0.330 |
2003 |
192.7 |
0.321 |
2004 |
195.0 |
0.311 |
2005 |
197.5 |
0.301 |
2006 |
200.1 |
0.290 |
2007 |
202.9 |
0.279 |
2008 |
206.0 |
0.267 |
2009 |
209.4 |
0.255 |
2010 |
213.1 |
0.242 |
2011 |
217.2 |
0.229 |
2012 |
221.9 |
0.216 |
2013 |
227.1 |
0.202 |
2014 |
233.1 |
0.190 |
2015 |
239.9 |
0.177 |
2016 |
247.7 |
0.167 |
2017 |
256.4 |
0.158 |
2018 |
266.1 |
0.151 |
2019 |
276.3 |
0.148 |
2020 |
286.8 |
0.148 |
2021 |
297.0 |
0.152 |
2022 |
306.5 |
0.159 |
2023 |
315.0 |
0.169 |
2024 |
322.5 |
0.181 |
2025 |
329.0 |
0.194 |
2026 |
334.7 |
0.208 |
2027 |
339.6 |
0.223 |
2028 |
343.9 |
0.239 |
2029 |
347.7 |
0.254 |
2030 |
351.1 |
0.269 |
2031 |
354.1 |
0.284 |
2032 |
356.8 |
0.299 |
2033 |
359.2 |
0.314 |
2034 |
1.4 |
0.328 |
2035 |
3.5 |
0.342 |
2036 |
5.4 |
0.356 |
2037 |
7.1 |
0.369 |
2038 |
8.7 |
0.382 |
2039 |
10.3 |
0.394 |
2040 |
11.7 |
0.406 |
2041 |
13.0 |
0.418 |
2042 |
14.3 |
0.429 |
2043 |
15.5 |
0.440 |
2044 |
16.7 |
0.451 |
2045 |
17.8 |
0.461 |
2046 |
18.8 |
0.472 |
2047 |
19.9 |
0.481 |
2048 |
20.8 |
0.491 |
2049 |
21.8 |
0.500 |
2050 |
22.7 |
0.509 |
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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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