16193-3529 SEE 272 (HD 146745)
16h 19m 17.22s -35° 29' 26.9" P.A. 271.00 sep 0.2 mag 7.40,7.54 Sp F3IV/V dist. 111.36 pc (363.26 l.y.)
| Coord 2000 |
16193-3529 |
|
Discov num |
SEE 272 |
|
Comp |
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|
Coord arcsec 2000 |
16 19 17.22 -35 29 26.9 |
|
| Date first |
1897 |
|
Date last |
2021 |
|
Obs |
23 |
|
| Pa first |
281 |
|
Pa last |
271.2 |
|
P.A. Now (θ) |
272.8° |
|
| Sep first |
0.3 |
|
Sep last |
0.241 |
|
Sep. Now (ρ) |
0.256" |
|
| Mag pri |
7.40 |
|
Mag sec |
7.54 |
|
delta mag (ΔM) |
0.14 |
|
Spectral class |
F3IV/V (yellow-white) |
|
| Pri motion ra |
-037 |
|
Sec motion ra |
|
|
| Pri motion dec |
-028 |
|
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 146745 |
|
Constellation |
Scorpius |
|
SAO |
207551 |
|
HIP |
79962 |
|
| Tycho2 |
7351-01664-1 |
|
Gaia DR2 |
6023004717057813888 |
|
HD |
146745 |
|
GC |
21930 |
|
| CD |
CD-3510877 |
|
CP |
CP-35 6694 |
|
Distance |
111.36 |
|
Distance ly |
363.26 |
|
ORBITAL ELEMENTS
| Period (P) | 32.48y | ± 0.48 |
Periastron (T) | 2011.04y | ± 0.52 |
Semi-major axis (a) | 0.144a | ± 0.023 |
| Eccentricity (e) | 0.956 | ± 0.012 |
Inclination (i) | 33° | ± 32.3 |
Longitude of periastron (ω) | 328.9° | ± 29.3 |
| Node (Ω) | 123.1° | ± 21.2 |
Notes | | |
Reference | Tok2021f | |
| Equinox | | |
Last observation | 2021 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
280.4 |
0.255 |
| 2001 |
281.3 |
0.248 |
| 2002 |
282.3 |
0.239 |
| 2003 |
283.3 |
0.228 |
| 2004 |
284.5 |
0.216 |
| 2005 |
285.8 |
0.201 |
| 2006 |
287.3 |
0.184 |
| 2007 |
289.2 |
0.163 |
| 2008 |
291.6 |
0.139 |
| 2009 |
295.3 |
0.110 |
| 2010 |
302.4 |
0.071 |
| 2011 |
36.0 |
0.007 |
| 2012 |
244.9 |
0.059 |
| 2013 |
254.6 |
0.096 |
| 2014 |
259.2 |
0.126 |
| 2015 |
262.2 |
0.150 |
| 2016 |
264.4 |
0.171 |
| 2017 |
266.1 |
0.189 |
| 2018 |
267.6 |
0.205 |
| 2019 |
268.8 |
0.219 |
| 2020 |
270.0 |
0.230 |
| 2021 |
271.0 |
0.240 |
| 2022 |
271.9 |
0.249 |
| 2023 |
272.8 |
0.256 |
| 2024 |
273.7 |
0.261 |
| 2025 |
274.5 |
0.266 |
| 2026 |
275.3 |
0.268 |
| 2027 |
276.0 |
0.270 |
| 2028 |
276.8 |
0.270 |
| 2029 |
277.6 |
0.269 |
| 2030 |
278.4 |
0.267 |
|
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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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