01014+1155 BU 867 (HD 5988)
01h 01m 21.77s +11° 54' 45.9" P.A. 352.00 sep 0.7 mag 8.23,9.34 Sp F5 dist. 70.47 pc (229.87 l.y.)
Coord 2000 |
01014+1155 |
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Discov num |
BU 867 |
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Comp |
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Coord arcsec 2000 |
01 01 21.77 +11 54 45.9 |
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Date first |
1880 |
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Date last |
2015 |
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Obs |
65 |
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Pa first |
175 |
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Pa last |
352.4 |
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P.A. Now (θ) |
349.3° |
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Sep first |
1.0 |
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Sep last |
0.659 |
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Sep. Now (ρ) |
0.561" |
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Mag pri |
8.23 |
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Mag sec |
9.34 |
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delta mag (ΔM) |
1.11 |
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Spectral class |
F5 (yellow-white) |
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Pri motion ra |
+010 |
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Sec motion ra |
+010 |
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Pri motion dec |
+016 |
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Sec motion dec |
+016 |
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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 5988 |
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Constellation |
Pisces |
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SAO |
92207 |
|
HIP |
4775 |
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Tycho2 |
0615-00473-1 |
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Gaia DR2 |
2584078618511132160 |
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HD |
5988 |
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GC |
1226 |
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ADS |
828 |
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BD |
BD+11 135 |
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Distance |
70.47 |
|
Distance ly |
229.87 |
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ORBITAL ELEMENTS
Period (P) | 232.04y | ± 18.15 |
Periastron (T) | 2012.72y | ± 9.12 |
Semi-major axis (a) | 0.813a | ± 0.009 |
Eccentricity (e) | 0.23 | ± 0.01 |
Inclination (i) | 98.9° | ± 1 |
Longitude of periastron (ω) | 2.9° | ± 20.4 |
Node (Ω) | 354.2° | ± 0.4 |
Notes | n | |
Reference | Hrt2008 | |
Equinox | 2000 | |
Last observation | 2003 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
359.1 |
0.566 |
2001 |
358.6 |
0.576 |
2002 |
358.1 |
0.585 |
2003 |
357.7 |
0.593 |
2004 |
357.3 |
0.601 |
2005 |
356.8 |
0.607 |
2006 |
356.4 |
0.613 |
2007 |
356.0 |
0.617 |
2008 |
355.6 |
0.621 |
2009 |
355.2 |
0.624 |
2010 |
354.8 |
0.625 |
2011 |
354.4 |
0.626 |
2012 |
354.0 |
0.626 |
2013 |
353.6 |
0.625 |
2014 |
353.2 |
0.623 |
2015 |
352.8 |
0.620 |
2016 |
352.4 |
0.616 |
2017 |
352.0 |
0.610 |
2018 |
351.6 |
0.605 |
2019 |
351.2 |
0.598 |
2020 |
350.7 |
0.590 |
2021 |
350.3 |
0.581 |
2022 |
349.8 |
0.572 |
2023 |
349.3 |
0.561 |
2024 |
348.8 |
0.550 |
2025 |
348.3 |
0.538 |
2026 |
347.8 |
0.525 |
2027 |
347.2 |
0.512 |
2028 |
346.6 |
0.498 |
2029 |
346.0 |
0.483 |
2030 |
345.3 |
0.468 |
2031 |
344.5 |
0.452 |
2032 |
343.8 |
0.435 |
2033 |
342.9 |
0.418 |
2034 |
342.0 |
0.401 |
2035 |
341.0 |
0.383 |
2036 |
339.9 |
0.365 |
2037 |
338.7 |
0.346 |
2038 |
337.3 |
0.328 |
2039 |
335.8 |
0.309 |
2040 |
334.1 |
0.290 |
2041 |
332.1 |
0.271 |
2042 |
329.8 |
0.252 |
2043 |
327.2 |
0.233 |
2044 |
324.1 |
0.214 |
2045 |
320.4 |
0.196 |
2046 |
316.0 |
0.179 |
2047 |
310.7 |
0.163 |
2048 |
304.3 |
0.148 |
2049 |
296.6 |
0.136 |
2050 |
287.6 |
0.126 |
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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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