02456-7114 HDS 357 (HD 17653)
02h 45m 36.86s -71° 14' 09.4" P.A. 17.00 sep 0.4 mag 6.79,10.56 Sp F6V dist. 60.06 pc (195.92 l.y.)
Coord 2000 |
02456-7114 |
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Discov num |
HDS 357 |
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Comp |
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Coord arcsec 2000 |
02 45 36.86 -71 14 09.4 |
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Date first |
1991 |
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Date last |
2021 |
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Obs |
12 |
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Pa first |
132 |
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Pa last |
16.6 |
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P.A. Now (θ) |
16.6° |
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Sep first |
0.5 |
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Sep last |
0.425 |
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Sep. Now (ρ) |
0.425" |
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Mag pri |
6.79 |
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Mag sec |
10.56 |
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delta mag (ΔM) |
3.77 |
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Spectral class |
F6V (yellow-white) |
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Pri motion ra |
+064 |
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Sec motion ra |
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Pri motion dec |
+003 |
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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 17653 |
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Constellation |
Hydrus |
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SAO |
255919 |
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HIP |
12884 |
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Tycho2 |
9148-01833-1 |
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Gaia DR2 |
4644328667526505600 |
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HD |
17653 |
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GC |
3360 |
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CP |
CP-71 165 |
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Distance |
60.06 |
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Distance ly |
195.92 |
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ORBITAL ELEMENTS
Period (P) | 78.7y | |
Periastron (T) | 2041.99y | |
Semi-major axis (a) | 0.545a | |
Eccentricity (e) | 0.401 | |
Inclination (i) | 116.1° | |
Longitude of periastron (ω) | 256.6° | |
Node (Ω) | 160.8° | |
Notes | n | |
Reference | Hrt2011d | |
Equinox | 2000 | |
Last observation | 2010 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
108.9 |
0.402 |
2001 |
105.4 |
0.390 |
2002 |
101.7 |
0.379 |
2003 |
97.8 |
0.368 |
2004 |
93.6 |
0.358 |
2005 |
89.3 |
0.349 |
2006 |
84.7 |
0.342 |
2007 |
79.9 |
0.336 |
2008 |
75.0 |
0.332 |
2009 |
70.0 |
0.330 |
2010 |
64.9 |
0.329 |
2011 |
59.9 |
0.330 |
2012 |
54.9 |
0.332 |
2013 |
50.0 |
0.337 |
2014 |
45.2 |
0.342 |
2015 |
40.7 |
0.349 |
2016 |
36.3 |
0.358 |
2017 |
32.1 |
0.367 |
2018 |
28.1 |
0.377 |
2019 |
24.4 |
0.387 |
2020 |
20.8 |
0.397 |
2021 |
17.4 |
0.408 |
2022 |
14.2 |
0.418 |
2023 |
11.2 |
0.428 |
2024 |
8.2 |
0.437 |
2025 |
5.4 |
0.445 |
2026 |
2.7 |
0.452 |
2027 |
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0.457 |
2028 |
357.4 |
0.460 |
2029 |
354.9 |
0.462 |
2030 |
352.3 |
0.460 |
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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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