01200-1549 HJ 2036 (HD 8071)
01h 19m 57.74s -15° 48' 50.8" P.A. 338.00 sep 2.2 mag 7.40,7.61 Sp G0IV dist. 46.21 pc (150.74 l.y.)
Coord 2000 |
01200-1549 |
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Discov num |
HJ 2036 |
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Comp |
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Coord arcsec 2000 |
01 19 57.74 -15 48 50.8 |
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Date first |
1830 |
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Date last |
2018 |
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Obs |
118 |
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Pa first |
53 |
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Pa last |
337.8 |
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P.A. Now (θ) |
337.8° |
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Sep first |
2.0 |
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Sep last |
2.171 |
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Sep. Now (ρ) |
2.171" |
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Mag pri |
7.40 |
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Mag sec |
7.61 |
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delta mag (ΔM) |
0.21 |
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Spectral class |
G0IV (yellow) |
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Pri motion ra |
+053 |
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Sec motion ra |
+053 |
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Pri motion dec |
-107 |
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Sec motion dec |
-107 |
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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 8071 |
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Constellation |
Cetus |
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SAO |
147741 |
|
HIP |
6234 |
|
Tycho2 |
5851-01822-1 |
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Gaia DR2 |
2454680604026819200 |
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HD |
8071 |
|
GC |
1605 |
|
ADS |
1087 |
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BD |
BD-16 223 |
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Distance |
46.21 |
|
Distance ly |
150.74 |
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ORBITAL ELEMENTS
Period (P) | 1443.343y | ± 37.617 |
Periastron (T) | 2674.911y | ± 18.428 |
Semi-major axis (a) | 3.4307a | ± 0.2653 |
Eccentricity (e) | 0.0922 | ± 0.0244 |
Inclination (i) | 114.06° | ± 2.9 |
Longitude of periastron (ω) | 288.88° | ± 24.5 |
Node (Ω) | 124.78° | ± 1.6 |
Notes | | |
Reference | Ole2003d | |
Equinox | 2000 | |
Last observation | 1999 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
341.5 |
2.237 |
2001 |
341.3 |
2.245 |
2002 |
341.1 |
2.253 |
2003 |
340.8 |
2.261 |
2004 |
340.6 |
2.269 |
2005 |
340.4 |
2.277 |
2006 |
340.1 |
2.285 |
2007 |
339.9 |
2.292 |
2008 |
339.7 |
2.300 |
2009 |
339.5 |
2.308 |
2010 |
339.2 |
2.316 |
2011 |
339.0 |
2.324 |
2012 |
338.8 |
2.332 |
2013 |
338.6 |
2.340 |
2014 |
338.4 |
2.348 |
2015 |
338.1 |
2.356 |
2016 |
337.9 |
2.363 |
2017 |
337.7 |
2.371 |
2018 |
337.5 |
2.379 |
2019 |
337.3 |
2.387 |
2020 |
337.1 |
2.395 |
2021 |
336.9 |
2.403 |
2022 |
336.7 |
2.411 |
2023 |
336.5 |
2.419 |
2024 |
336.3 |
2.426 |
2025 |
336.1 |
2.434 |
2026 |
335.9 |
2.442 |
2027 |
335.7 |
2.450 |
2028 |
335.5 |
2.458 |
2029 |
335.3 |
2.466 |
2030 |
335.1 |
2.473 |
2031 |
334.9 |
2.481 |
2032 |
334.7 |
2.489 |
2033 |
334.5 |
2.497 |
2034 |
334.3 |
2.505 |
2035 |
334.1 |
2.512 |
2036 |
333.9 |
2.520 |
2037 |
333.7 |
2.528 |
2038 |
333.6 |
2.536 |
2039 |
333.4 |
2.543 |
2040 |
333.2 |
2.551 |
2041 |
333.0 |
2.559 |
2042 |
332.8 |
2.567 |
2043 |
332.6 |
2.574 |
2044 |
332.5 |
2.582 |
2045 |
332.3 |
2.590 |
2046 |
332.1 |
2.597 |
2047 |
331.9 |
2.605 |
2048 |
331.8 |
2.613 |
2049 |
331.6 |
2.620 |
2050 |
331.4 |
2.628 |
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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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