16140-2815 RST 1883 (HD 145793)
16h 13m 58.13s -28° 15' 09.4" P.A. 321.00 sep 0.2 mag 8.15,10.22 Sp A2V dist. 155.52 pc (507.31 l.y.)
Coord 2000 |
16140-2815 |
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Discov num |
RST1883 |
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Comp |
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Coord arcsec 2000 |
16 13 58.13 -28 15 09.4 |
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Date first |
1931 |
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Date last |
2019 |
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Obs |
12 |
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Pa first |
302 |
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Pa last |
321.3 |
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P.A. Now (θ) |
321.3° |
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Sep first |
0.3 |
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Sep last |
0.152 |
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Sep. Now (ρ) |
0.152" |
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Mag pri |
8.15 |
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Mag sec |
10.22 |
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delta mag (ΔM) |
2.07 |
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Spectral class |
A2V (white) |
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Pri motion ra |
-012 |
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Sec motion ra |
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Pri motion dec |
-024 |
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Sec motion dec |
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Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 145793 |
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Constellation |
Scorpius |
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SAO |
184244 |
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HIP |
79552 |
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Tycho2 |
6805-00043-1 |
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Gaia DR2 |
6042157419335502080 |
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HD |
145793 |
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CD |
CD-2710858 |
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CP |
CP-27 5381 |
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Distance |
155.52 |
|
Distance ly |
507.31 |
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ORBITAL ELEMENTS
Period (P) | 104y | |
Periastron (T) | 2006.8y | |
Semi-major axis (a) | 0.219a | |
Eccentricity (e) | 0.779 | |
Inclination (i) | 118.1° | |
Longitude of periastron (ω) | 166° | |
Node (Ω) | 288.5° | |
Notes | | |
Reference | Tok2019h | |
Equinox | 2000 | |
Last observation | 2019 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
263.0 |
0.111 |
2001 |
258.3 |
0.093 |
2002 |
251.3 |
0.075 |
2003 |
239.6 |
0.056 |
2004 |
217.1 |
0.040 |
2005 |
176.1 |
0.032 |
2006 |
135.9 |
0.040 |
2007 |
110.9 |
0.049 |
2008 |
90.9 |
0.049 |
2009 |
69.2 |
0.046 |
2010 |
44.7 |
0.045 |
2011 |
21.8 |
0.049 |
2012 |
4.1 |
0.058 |
2013 |
351.7 |
0.069 |
2014 |
342.9 |
0.081 |
2015 |
336.6 |
0.094 |
2016 |
331.7 |
0.107 |
2017 |
327.9 |
0.120 |
2018 |
324.9 |
0.133 |
2019 |
322.3 |
0.145 |
2020 |
320.2 |
0.157 |
2021 |
318.3 |
0.168 |
2022 |
316.7 |
0.179 |
2023 |
315.2 |
0.190 |
2024 |
314.0 |
0.201 |
2025 |
312.8 |
0.211 |
2026 |
311.7 |
0.220 |
2027 |
310.8 |
0.229 |
2028 |
309.9 |
0.238 |
2029 |
309.0 |
0.247 |
2030 |
308.3 |
0.255 |
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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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