01220-6943 I 263 (HD 8519)
01h 21m 58.64s -69° 43' 07.6" P.A. 296.00 sep 0.4 mag 7.66,8.61 Sp F3V dist. 89.61 pc (292.31 l.y.)
Coord 2000 |
01220-6943 |
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Discov num |
I 263 |
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Comp |
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Coord arcsec 2000 |
01 21 58.64 -69 43 07.6 |
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Date first |
1897 |
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Date last |
2018 |
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Obs |
48 |
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Pa first |
52 |
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Pa last |
296.4 |
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P.A. Now (θ) |
296.4° |
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Sep first |
0.7 |
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Sep last |
0.376 |
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Sep. Now (ρ) |
0.376" |
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Mag pri |
7.66 |
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Mag sec |
8.61 |
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delta mag (ΔM) |
0.95 |
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Spectral class |
F3V (yellow-white) |
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Pri motion ra |
-002 |
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Sec motion ra |
-002 |
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Pri motion dec |
+006 |
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Sec motion dec |
+006 |
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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 8519 |
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Constellation |
Tucana |
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SAO |
248370 |
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HIP |
6377 |
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Tycho2 |
9136-01600-1 |
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HD |
8519 |
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GC |
1673 |
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CP |
CP-70 64 |
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Distance |
89.61 |
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Distance ly |
292.31 |
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ORBITAL ELEMENTS
Period (P) | 272.15y | ± 47.48 |
Periastron (T) | 1936.56y | ± 5.3 |
Semi-major axis (a) | 0.791a | ± 0.075 |
Eccentricity (e) | 0.374 | ± 0.059 |
Inclination (i) | 68.6° | ± 1.9 |
Longitude of periastron (ω) | 297.3° | ± 14.1 |
Node (Ω) | 231.3° | ± 2.8 |
Notes | n | |
Reference | Tok2015c | |
Equinox | 2000 | |
Last observation | 2014 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
266.0 |
0.491 |
2001 |
267.2 |
0.484 |
2002 |
268.4 |
0.478 |
2003 |
269.7 |
0.472 |
2004 |
270.9 |
0.466 |
2005 |
272.2 |
0.459 |
2006 |
273.6 |
0.453 |
2007 |
275.0 |
0.447 |
2008 |
276.4 |
0.441 |
2009 |
277.9 |
0.436 |
2010 |
279.3 |
0.430 |
2011 |
280.9 |
0.425 |
2012 |
282.5 |
0.419 |
2013 |
284.1 |
0.414 |
2014 |
285.7 |
0.409 |
2015 |
287.4 |
0.405 |
2016 |
289.1 |
0.400 |
2017 |
290.9 |
0.396 |
2018 |
292.7 |
0.392 |
2019 |
294.6 |
0.388 |
2020 |
296.4 |
0.385 |
2021 |
298.3 |
0.382 |
2022 |
300.3 |
0.379 |
2023 |
302.2 |
0.377 |
2024 |
304.2 |
0.375 |
2025 |
306.2 |
0.373 |
2026 |
308.2 |
0.372 |
2027 |
310.3 |
0.371 |
2028 |
312.3 |
0.370 |
2029 |
314.4 |
0.370 |
2030 |
316.4 |
0.370 |
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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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