10480+4107 STT 229 (HD 93457)
10h 48m 02.55s +41° 06' 35.8" P.A. 256.00 sep 0.7 mag 7.62,7.92 Sp A5IV dist. 165.56 pc (540.06 l.y.)
| Coord 2000 |
10480+4107 |
|
Discov num |
STT 229 |
|
Comp |
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|
Coord arcsec 2000 |
10 48 02.55 +41 06 35.8 |
|
| Date first |
1843 |
|
Date last |
2020 |
|
Obs |
224 |
|
| Pa first |
355 |
|
Pa last |
255.6 |
|
P.A. Now (θ) |
251.6° |
|
| Sep first |
0.8 |
|
Sep last |
0.66 |
|
Sep. Now (ρ) |
0.613" |
|
| Mag pri |
7.62 |
|
Mag sec |
7.92 |
|
delta mag (ΔM) |
0.3 |
|
Spectral class |
A5IV (white) |
|
| Pri motion ra |
-021 |
|
Sec motion ra |
-021 |
|
| Pri motion dec |
-003 |
|
Sec motion dec |
-003 |
|
| Notes |
O
(Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 93457 |
|
Constellation |
Ursa Major |
|
SAO |
43475 |
|
HIP |
52823 |
|
| Tycho2 |
3009-01249-1 |
|
Gaia DR2 |
779748671184468352 |
|
HD |
93457 |
|
GC |
14856 |
|
| ADS |
7929 |
|
BD |
BD+41 2123 |
|
Distance |
165.56 |
|
Distance ly |
540.06 |
|
ORBITAL ELEMENTS
| Period (P) | 335.4y | |
Periastron (T) | 2077.4y | |
Semi-major axis (a) | 0.639a | |
| Eccentricity (e) | 0.472 | |
Inclination (i) | 154° | |
Longitude of periastron (ω) | 285.7° | |
| Node (Ω) | 64.1° | |
Notes | | |
Reference | Alz2020c | |
| Equinox | 2000 | |
Last observation | 2018 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
269.5 |
0.720 |
| 2001 |
268.8 |
0.716 |
| 2002 |
268.1 |
0.712 |
| 2003 |
267.4 |
0.708 |
| 2004 |
266.7 |
0.704 |
| 2005 |
266.0 |
0.700 |
| 2006 |
265.3 |
0.696 |
| 2007 |
264.6 |
0.692 |
| 2008 |
263.9 |
0.687 |
| 2009 |
263.1 |
0.683 |
| 2010 |
262.4 |
0.679 |
| 2011 |
261.6 |
0.674 |
| 2012 |
260.8 |
0.669 |
| 2013 |
260.1 |
0.665 |
| 2014 |
259.3 |
0.660 |
| 2015 |
258.5 |
0.655 |
| 2016 |
257.6 |
0.650 |
| 2017 |
256.8 |
0.645 |
| 2018 |
256.0 |
0.640 |
| 2019 |
255.1 |
0.635 |
| 2020 |
254.2 |
0.630 |
| 2021 |
253.4 |
0.624 |
| 2022 |
252.5 |
0.619 |
| 2023 |
251.6 |
0.613 |
| 2024 |
250.6 |
0.608 |
| 2025 |
249.7 |
0.602 |
| 2026 |
248.7 |
0.596 |
| 2027 |
247.7 |
0.590 |
| 2028 |
246.7 |
0.585 |
| 2029 |
245.7 |
0.579 |
| 2030 |
244.6 |
0.572 |
|
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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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