10183-0326 RST 4454 AB (HD 89334)
10h 18m 17.75s -03° 26' 26.0" P.A. 224.00 sep 0.3 mag 9.90,9.90 Sp F8
| Coord 2000 |
10183-0326 |
|
Discov num |
RST4454 |
|
Comp |
AB |
|
Coord arcsec 2000 |
10 18 17.75 -03 26 26.0 |
|
| Date first |
1939 |
|
Date last |
2018 |
|
Obs |
13 |
|
| Pa first |
36 |
|
Pa last |
224 |
|
P.A. Now (θ) |
224° |
|
| Sep first |
0.2 |
|
Sep last |
0.278 |
|
Sep. Now (ρ) |
0.278" |
|
| Mag pri |
9.90 |
|
Mag sec |
9.90 |
|
delta mag (ΔM) |
0 |
|
Spectral class |
F8 (yellow-white) |
|
| Pri motion ra |
-125 |
|
Sec motion ra |
|
|
| Pri motion dec |
-024 |
|
Sec motion dec |
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|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
10183-0326 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 89334 |
137479 |
10 18 18 -03 26 26 |
RST 4454 AB |
2018 |
13 |
224 |
0.3 |
9.90 |
9.90 |
0.00 |
Y |
<=== |
| Show |
|
137479 |
10 18 18 -03 26 26 |
BAL 210 AC |
2015 |
8 |
25 |
20.1 |
9.90 |
12.70 |
2.80 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 89334 |
|
Constellation |
Sextans |
|
SAO |
137479 |
|
Tycho2 |
4907-01461-1 |
|
| Gaia DR2 |
3780636788981849216 |
|
HD |
89334 |
|
ORBITAL ELEMENTS
| Period (P) | 164.55y | |
Periastron (T) | 1957.19y | |
Semi-major axis (a) | 0.273a | |
| Eccentricity (e) | 0.306 | |
Inclination (i) | 86.9° | |
Longitude of periastron (ω) | 243.1° | |
| Node (Ω) | 221.3° | |
Notes | n | |
Reference | Hrt2011d | |
| Equinox | 2000 | |
Last observation | 2010 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
221.8 |
0.298 |
| 2001 |
221.9 |
0.299 |
| 2002 |
222.0 |
0.300 |
| 2003 |
222.1 |
0.300 |
| 2004 |
222.2 |
0.300 |
| 2005 |
222.3 |
0.300 |
| 2006 |
222.4 |
0.300 |
| 2007 |
222.5 |
0.299 |
| 2008 |
222.5 |
0.298 |
| 2009 |
222.6 |
0.297 |
| 2010 |
222.7 |
0.296 |
| 2011 |
222.8 |
0.294 |
| 2012 |
222.9 |
0.292 |
| 2013 |
223.0 |
0.290 |
| 2014 |
223.1 |
0.287 |
| 2015 |
223.2 |
0.285 |
| 2016 |
223.3 |
0.282 |
| 2017 |
223.4 |
0.279 |
| 2018 |
223.6 |
0.275 |
| 2019 |
223.7 |
0.272 |
| 2020 |
223.8 |
0.268 |
| 2021 |
223.9 |
0.264 |
| 2022 |
224.0 |
0.260 |
| 2023 |
224.1 |
0.256 |
| 2024 |
224.3 |
0.251 |
| 2025 |
224.4 |
0.246 |
| 2026 |
224.6 |
0.242 |
| 2027 |
224.7 |
0.237 |
| 2028 |
224.9 |
0.231 |
| 2029 |
225.0 |
0.226 |
| 2030 |
225.2 |
0.221 |
|
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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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