10446+0530 A 2771 (HD 93017)
10h 44m 38.71s +05° 29' 55.0" P.A. 109.00 sep 0.6 mag 9.18,9.70 Sp K0 dist. 71.79 pc (234.18 l.y.)
| Coord 2000 |
10446+0530 |
|
Discov num |
A 2771 |
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Comp |
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Coord arcsec 2000 |
10 44 38.71 +05 29 55.0 |
|
| Date first |
1914 |
|
Date last |
2021 |
|
Obs |
39 |
|
| Pa first |
209 |
|
Pa last |
109.1 |
|
P.A. Now (θ) |
109.1° |
|
| Sep first |
0.8 |
|
Sep last |
0.636 |
|
Sep. Now (ρ) |
0.636" |
|
| Mag pri |
9.18 |
|
Mag sec |
9.70 |
|
delta mag (ΔM) |
0.52 |
|
Spectral class |
K0 (yellow-orange) |
|
| Pri motion ra |
+006 |
|
Sec motion ra |
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| Pri motion dec |
+002 |
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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 93017 |
|
Constellation |
Sextans |
|
SAO |
118465 |
|
HIP |
52547 |
|
| Tycho2 |
0260-00604-1 |
|
Gaia DR2 |
3858414794126696192 |
|
HD |
93017 |
|
ADS |
7911 |
|
| BD |
BD+06 2343 |
|
Distance |
71.79 |
|
Distance ly |
234.18 |
|
ORBITAL ELEMENTS
| Period (P) | 549y | |
Periastron (T) | 1993.47y | |
Semi-major axis (a) | 1.016a | |
| Eccentricity (e) | 0.834 | |
Inclination (i) | 131.4° | |
Longitude of periastron (ω) | 52.8° | |
| Node (Ω) | 288.6° | |
Notes | | |
Reference | Tok2014a | |
| Equinox | 2000 | |
Last observation | 2013 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
157.0 |
0.179 |
| 2001 |
150.1 |
0.201 |
| 2002 |
144.6 |
0.223 |
| 2003 |
140.1 |
0.246 |
| 2004 |
136.4 |
0.268 |
| 2005 |
133.2 |
0.290 |
| 2006 |
130.5 |
0.312 |
| 2007 |
128.1 |
0.333 |
| 2008 |
126.0 |
0.354 |
| 2009 |
124.1 |
0.374 |
| 2010 |
122.4 |
0.393 |
| 2011 |
120.9 |
0.412 |
| 2012 |
119.5 |
0.431 |
| 2013 |
118.2 |
0.449 |
| 2014 |
117.1 |
0.467 |
| 2015 |
116.0 |
0.484 |
| 2016 |
115.0 |
0.501 |
| 2017 |
114.0 |
0.517 |
| 2018 |
113.1 |
0.533 |
| 2019 |
112.3 |
0.549 |
| 2020 |
111.5 |
0.564 |
| 2021 |
110.7 |
0.579 |
| 2022 |
110.0 |
0.594 |
| 2023 |
109.3 |
0.609 |
| 2024 |
108.7 |
0.623 |
| 2025 |
108.0 |
0.637 |
| 2026 |
107.4 |
0.650 |
| 2027 |
106.9 |
0.664 |
| 2028 |
106.3 |
0.677 |
| 2029 |
105.8 |
0.690 |
| 2030 |
105.3 |
0.702 |
|
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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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