09551+6854 STF 1386 AB (HD 85458)
09h 55m 04.02s +68° 54' 06.1" P.A. 112.00 sep 2.1 mag 9.30,9.34 Sp F5 dist. 168.92 pc (551.02 l.y.)
| Coord 2000 |
09551+6854 |
|
Discov num |
STF1386 |
|
Comp |
AB |
|
Coord arcsec 2000 |
09 55 04.02 +68 54 06.1 |
|
| Date first |
1831 |
|
Date last |
2021 |
|
Obs |
59 |
|
| Pa first |
122 |
|
Pa last |
111.8 |
|
P.A. Now (θ) |
111.1° |
|
| Sep first |
1.5 |
|
Sep last |
2.11 |
|
Sep. Now (ρ) |
2.12" |
|
| Mag pri |
9.30 |
|
Mag sec |
9.34 |
|
delta mag (ΔM) |
0.04 |
|
Spectral class |
F5 (yellow-white) |
|
| Pri motion ra |
-006 |
|
Sec motion ra |
-006 |
|
| Pri motion dec |
-001 |
|
Sec motion dec |
-001 |
|
| Notes |
O
W
(Orbital solution, ) |
|
This double is physical.
09551+6854 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 85458 |
15020 |
09 55 04 +68 54 06 |
STF 1386 AB |
2021 |
59 |
112 |
2.1 |
9.30 |
9.34 |
0.04 |
Y |
<=== |
| Show |
|
15020 |
09 55 04 +68 54 06 |
STF 1386 AB,CD |
2003 |
10 |
353 |
137.7 |
9.30 |
10.67 |
1.37 |
|
|
| Show |
|
15018 |
09 55 03 +68 56 22 |
STF 1387 CD |
2020 |
42 |
273 |
8.9 |
10.73 |
10.67 |
0.06 |
|
|
Quadruple system
6 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 85458 |
|
Constellation |
Ursa Major |
|
SAO |
15020 |
|
HIP |
48639 |
|
| Tycho2 |
4383-00848-2 |
|
Gaia DR2 |
1070467070352960640 |
|
HD |
85458 |
|
GC |
13606 |
|
| BD |
BD+69 542 |
|
Distance |
168.92 |
|
Distance ly |
551.02 |
|
ORBITAL ELEMENTS
| Period (P) | 2301.5886y | ± 1050.8306 |
Periastron (T) | 2178.5269y | ± 435.2889 |
Semi-major axis (a) | 4.61934a | ± 2.5666 |
| Eccentricity (e) | 0.79276 | ± 0.1685 |
Inclination (i) | 92.517° | ± 2.781 |
Longitude of periastron (ω) | 76.941° | ± 17.376 |
| Node (Ω) | 108.314° | ± 4.927 |
Notes | | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2015 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
111.5 |
2.109 |
| 2001 |
111.5 |
2.110 |
| 2002 |
111.5 |
2.110 |
| 2003 |
111.5 |
2.110 |
| 2004 |
111.4 |
2.110 |
| 2005 |
111.4 |
2.110 |
| 2006 |
111.4 |
2.110 |
| 2007 |
111.4 |
2.110 |
| 2008 |
111.4 |
2.110 |
| 2009 |
111.3 |
2.110 |
| 2010 |
111.3 |
2.110 |
| 2011 |
111.3 |
2.110 |
| 2012 |
111.3 |
2.110 |
| 2013 |
111.3 |
2.109 |
| 2014 |
111.2 |
2.109 |
| 2015 |
111.2 |
2.109 |
| 2016 |
111.2 |
2.108 |
| 2017 |
111.2 |
2.108 |
| 2018 |
111.2 |
2.108 |
| 2019 |
111.1 |
2.107 |
| 2020 |
111.1 |
2.106 |
| 2021 |
111.1 |
2.106 |
| 2022 |
111.1 |
2.105 |
| 2023 |
111.1 |
2.104 |
| 2024 |
111.0 |
2.104 |
| 2025 |
111.0 |
2.103 |
| 2026 |
111.0 |
2.102 |
| 2027 |
111.0 |
2.101 |
| 2028 |
111.0 |
2.100 |
| 2029 |
110.9 |
2.099 |
| 2030 |
110.9 |
2.098 |
| 2031 |
110.9 |
2.097 |
| 2032 |
110.9 |
2.096 |
| 2033 |
110.9 |
2.094 |
| 2034 |
110.8 |
2.093 |
| 2035 |
110.8 |
2.092 |
| 2036 |
110.8 |
2.090 |
| 2037 |
110.8 |
2.089 |
| 2038 |
110.8 |
2.087 |
| 2039 |
110.7 |
2.085 |
| 2040 |
110.7 |
2.084 |
| 2041 |
110.7 |
2.082 |
| 2042 |
110.7 |
2.080 |
| 2043 |
110.7 |
2.078 |
| 2044 |
110.6 |
2.076 |
| 2045 |
110.6 |
2.074 |
| 2046 |
110.6 |
2.072 |
| 2047 |
110.6 |
2.070 |
| 2048 |
110.6 |
2.068 |
| 2049 |
110.5 |
2.066 |
| 2050 |
110.5 |
2.063 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
|
|
