01094-5636 HU 1342 (HD 6996)
01h 09m 22.09s -56° 35' 42.4" P.A. 319.00 sep 0.6 mag 7.78,8.25 Sp F5IV/V dist. 98.81 pc (322.32 l.y.)
| Coord 2000 |
01094-5636 |
|
Discov num |
HU 1342 |
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Comp |
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Coord arcsec 2000 |
01 09 22.09 -56 35 42.4 |
|
| Date first |
1913 |
|
Date last |
2019 |
|
Obs |
25 |
|
| Pa first |
348 |
|
Pa last |
319.4 |
|
P.A. Now (θ) |
319.4° |
|
| Sep first |
0.3 |
|
Sep last |
0.579 |
|
Sep. Now (ρ) |
0.579" |
|
| Mag pri |
7.78 |
|
Mag sec |
8.25 |
|
delta mag (ΔM) |
0.47 |
|
Spectral class |
F5IV/V (yellow-white) |
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| Pri motion ra |
+141 |
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Sec motion ra |
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| Pri motion dec |
-020 |
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Sec motion dec |
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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 6996 |
|
Constellation |
Phoenix |
|
SAO |
232315 |
|
HIP |
5428 |
|
| Tycho2 |
8476-01001-1 |
|
HD |
6996 |
|
GC |
1407 |
|
CP |
CP-57 251 |
|
| Distance |
98.81 |
|
Distance ly |
322.32 |
|
ORBITAL ELEMENTS
| Period (P) | 79.1y | |
Periastron (T) | 1967.7y | |
Semi-major axis (a) | 0.26a | |
| Eccentricity (e) | 0.457 | |
Inclination (i) | 118.1° | |
Longitude of periastron (ω) | 4° | |
| Node (Ω) | 153.1° | |
Notes | n | |
Reference | Hrt2010a | |
| Equinox | 2000 | |
Last observation | 2009 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
337.9 |
0.365 |
| 2001 |
336.9 |
0.369 |
| 2002 |
336.0 |
0.372 |
| 2003 |
335.1 |
0.375 |
| 2004 |
334.1 |
0.377 |
| 2005 |
333.2 |
0.378 |
| 2006 |
332.3 |
0.378 |
| 2007 |
331.4 |
0.378 |
| 2008 |
330.5 |
0.377 |
| 2009 |
329.6 |
0.376 |
| 2010 |
328.7 |
0.374 |
| 2011 |
327.8 |
0.371 |
| 2012 |
326.8 |
0.367 |
| 2013 |
325.9 |
0.363 |
| 2014 |
324.9 |
0.358 |
| 2015 |
323.9 |
0.353 |
| 2016 |
322.8 |
0.346 |
| 2017 |
321.7 |
0.339 |
| 2018 |
320.6 |
0.332 |
| 2019 |
319.4 |
0.324 |
| 2020 |
318.1 |
0.315 |
| 2021 |
316.8 |
0.305 |
| 2022 |
315.3 |
0.295 |
| 2023 |
313.8 |
0.284 |
| 2024 |
312.1 |
0.273 |
| 2025 |
310.3 |
0.261 |
| 2026 |
308.3 |
0.248 |
| 2027 |
306.1 |
0.235 |
| 2028 |
303.6 |
0.221 |
| 2029 |
300.8 |
0.207 |
| 2030 |
297.6 |
0.193 |
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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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