14485-1720 BU 346 (HD 130412)
14h 48m 31.71s -17° 20' 24.4" P.A. 278.00 sep 2.8 mag 7.48,7.92 Sp G1V dist. 44.5 pc (145.16 l.y.)
Coord 2000 |
14485-1720 |
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Discov num |
BU 346 |
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Comp |
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Coord arcsec 2000 |
14 48 31.71 -17 20 24.4 |
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Date first |
1875 |
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Date last |
2021 |
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Obs |
80 |
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Pa first |
250 |
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Pa last |
278.2 |
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P.A. Now (θ) |
278.2° |
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Sep first |
1.0 |
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Sep last |
2.773 |
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Sep. Now (ρ) |
2.773" |
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Mag pri |
7.48 |
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Mag sec |
7.92 |
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delta mag (ΔM) |
0.44 |
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Spectral class |
G1V (yellow) |
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Pri motion ra |
+026 |
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Sec motion ra |
+039 |
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Pri motion dec |
-061 |
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Sec motion dec |
-048 |
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Notes |
N
C
(See Notes, Has orbit and linear solution) |
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rPM=0.277 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 130412 |
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Constellation |
Libra |
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SAO |
158813 |
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HIP |
72423 |
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Tycho2 |
6159-00749-1 |
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Gaia DR2 |
6282494305924196864 |
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HD |
130412 |
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GC |
19921 |
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ADS |
9387 |
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BD |
BD-16 3939 |
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Distance |
44.5 |
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Distance ly |
145.16 |
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ORBITAL ELEMENTS
Period (P) | 1715.7084y | ± 857.6437 |
Periastron (T) | 2129.6651y | ± 164.4848 |
Semi-major axis (a) | 9.40469a | ± 5.12838 |
Eccentricity (e) | 0.82703 | ± 0.1309 |
Inclination (i) | 85.071° | ± 5.309 |
Longitude of periastron (ω) | 244.985° | ± 41.491 |
Node (Ω) | 108.072° | ± 5.868 |
Notes | n | |
Reference | Izm2019 | |
Equinox | | |
Last observation | 2015 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
275.2 |
2.546 |
2001 |
275.3 |
2.556 |
2002 |
275.5 |
2.566 |
2003 |
275.6 |
2.576 |
2004 |
275.8 |
2.586 |
2005 |
275.9 |
2.596 |
2006 |
276.0 |
2.606 |
2007 |
276.1 |
2.616 |
2008 |
276.3 |
2.626 |
2009 |
276.4 |
2.636 |
2010 |
276.5 |
2.645 |
2011 |
276.7 |
2.655 |
2012 |
276.8 |
2.664 |
2013 |
276.9 |
2.673 |
2014 |
277.0 |
2.683 |
2015 |
277.2 |
2.692 |
2016 |
277.3 |
2.701 |
2017 |
277.4 |
2.710 |
2018 |
277.5 |
2.719 |
2019 |
277.7 |
2.727 |
2020 |
277.8 |
2.736 |
2021 |
277.9 |
2.745 |
2022 |
278.0 |
2.753 |
2023 |
278.1 |
2.761 |
2024 |
278.2 |
2.769 |
2025 |
278.4 |
2.778 |
2026 |
278.5 |
2.785 |
2027 |
278.6 |
2.793 |
2028 |
278.7 |
2.801 |
2029 |
278.8 |
2.808 |
2030 |
278.9 |
2.816 |
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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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