16425-3705 R 283 (HD 150420)
16h 42m 29.08s -37° 04' 45.7" P.A. 247.00 sep 0.8 mag 6.98,7.83 Sp G3III dist. 94.79 pc (309.2 l.y.)
Coord 2000 |
16425-3705 |
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Discov num |
R 283 |
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Comp |
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Coord arcsec 2000 |
16 42 29.08 -37 04 45.7 |
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Date first |
1881 |
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Date last |
2019 |
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Obs |
46 |
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Pa first |
88 |
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Pa last |
247.1 |
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P.A. Now (θ) |
247.1° |
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Sep first |
0.4 |
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Sep last |
0.847 |
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Sep. Now (ρ) |
0.847" |
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Mag pri |
6.98 |
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Mag sec |
7.83 |
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delta mag (ΔM) |
0.85 |
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Spectral class |
G3III (yellow) |
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Pri motion ra |
-028 |
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Sec motion ra |
-028 |
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Pri motion dec |
-089 |
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Sec motion dec |
-089 |
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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 150420 |
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Constellation |
Scorpius |
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SAO |
207943 |
|
HIP |
81803 |
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Tycho2 |
7358-00528-1 |
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Gaia DR2 |
6019299599085388160 |
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HD |
150420 |
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GC |
22459 |
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CD |
CD-3610916 |
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CP |
CP-36 7024 |
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Distance |
94.79 |
|
Distance ly |
309.2 |
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ORBITAL ELEMENTS
Period (P) | 691y | |
Periastron (T) | 1965.72y | |
Semi-major axis (a) | 1.3a | |
Eccentricity (e) | 0.656 | |
Inclination (i) | 122° | |
Longitude of periastron (ω) | 91.6° | |
Node (Ω) | 72.1° | |
Notes | n | |
Reference | Ary2015b | |
Equinox | 2000 | |
Last observation | 2013 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
255.0 |
0.684 |
2001 |
254.2 |
0.695 |
2002 |
253.5 |
0.706 |
2003 |
252.8 |
0.717 |
2004 |
252.1 |
0.727 |
2005 |
251.5 |
0.737 |
2006 |
250.8 |
0.747 |
2007 |
250.2 |
0.757 |
2008 |
249.6 |
0.766 |
2009 |
249.0 |
0.775 |
2010 |
248.4 |
0.784 |
2011 |
247.9 |
0.793 |
2012 |
247.3 |
0.802 |
2013 |
246.8 |
0.810 |
2014 |
246.2 |
0.818 |
2015 |
245.7 |
0.826 |
2016 |
245.2 |
0.834 |
2017 |
244.7 |
0.842 |
2018 |
244.2 |
0.849 |
2019 |
243.7 |
0.857 |
2020 |
243.2 |
0.864 |
2021 |
242.8 |
0.871 |
2022 |
242.3 |
0.877 |
2023 |
241.9 |
0.884 |
2024 |
241.4 |
0.890 |
2025 |
241.0 |
0.897 |
2026 |
240.5 |
0.903 |
2027 |
240.1 |
0.909 |
2028 |
239.7 |
0.915 |
2029 |
239.3 |
0.921 |
2030 |
238.9 |
0.926 |
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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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