10120-0612 HO 44 (HD 88478)
10h 12m 01.24s -06° 12' 10.3" P.A. 201.00 sep 0.7 mag 8.53,8.93 Sp F2 dist. 85.11 pc (277.63 l.y.)
| Coord 2000 |
10120-0612 |
|
Discov num |
HO 44 |
|
Comp |
|
|
Coord arcsec 2000 |
10 12 01.24 -06 12 10.3 |
|
| Date first |
1884 |
|
Date last |
2019 |
|
Obs |
35 |
|
| Pa first |
191 |
|
Pa last |
200.5 |
|
P.A. Now (θ) |
200.5° |
|
| Sep first |
0.4 |
|
Sep last |
0.674 |
|
Sep. Now (ρ) |
0.674" |
|
| Mag pri |
8.53 |
|
Mag sec |
8.93 |
|
delta mag (ΔM) |
0.4 |
|
Spectral class |
F2 (yellow-white) |
|
| Pri motion ra |
-056 |
|
Sec motion ra |
-056 |
|
| Pri motion dec |
+022 |
|
Sec motion dec |
+022 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 88478 |
|
Constellation |
Sextans |
|
SAO |
137406 |
|
HIP |
49961 |
|
| Tycho2 |
4910-00443-1 |
|
HD |
88478 |
|
ADS |
7675 |
|
BD |
BD-05 3011 |
|
| Distance |
85.11 |
|
Distance ly |
277.63 |
|
ORBITAL ELEMENTS
| Period (P) | 256.04y | |
Periastron (T) | 1942.68y | |
Semi-major axis (a) | 0.433a | |
| Eccentricity (e) | 0.984 | |
Inclination (i) | 143.6° | |
Longitude of periastron (ω) | 52.7° | |
| Node (Ω) | 65.2° | |
Notes | n | |
Reference | Zir2008 | |
| Equinox | 2000 | |
Last observation | 2004 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
203.9 |
0.615 |
| 2001 |
203.8 |
0.620 |
| 2002 |
203.7 |
0.624 |
| 2003 |
203.6 |
0.629 |
| 2004 |
203.5 |
0.633 |
| 2005 |
203.4 |
0.637 |
| 2006 |
203.4 |
0.641 |
| 2007 |
203.3 |
0.645 |
| 2008 |
203.2 |
0.649 |
| 2009 |
203.1 |
0.653 |
| 2010 |
203.0 |
0.657 |
| 2011 |
202.9 |
0.660 |
| 2012 |
202.8 |
0.664 |
| 2013 |
202.7 |
0.667 |
| 2014 |
202.7 |
0.671 |
| 2015 |
202.6 |
0.674 |
| 2016 |
202.5 |
0.678 |
| 2017 |
202.4 |
0.681 |
| 2018 |
202.3 |
0.684 |
| 2019 |
202.2 |
0.687 |
| 2020 |
202.2 |
0.690 |
| 2021 |
202.1 |
0.693 |
| 2022 |
202.0 |
0.696 |
| 2023 |
201.9 |
0.699 |
| 2024 |
201.9 |
0.701 |
| 2025 |
201.8 |
0.704 |
| 2026 |
201.7 |
0.706 |
| 2027 |
201.6 |
0.709 |
| 2028 |
201.5 |
0.711 |
| 2029 |
201.5 |
0.714 |
| 2030 |
201.4 |
0.716 |
|
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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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