12115+5325 STF 1608 AB (MZ UMa)
12h 11m 27.76s +53° 25' 17.5" P.A. 221.00 sep 13.5 mag 8.11,8.27 Sp K0 dist. 30.15 pc (98.35 l.y.)
| Coord 2000 |
12115+5325 |
|
Discov num |
STF1608 |
|
Comp |
AB |
|
Coord arcsec 2000 |
12 11 27.76 +53 25 17.5 |
|
| Date first |
1823 |
|
Date last |
2023 |
|
Obs |
143 |
|
| Pa first |
224 |
|
Pa last |
221 |
|
P.A. Now (θ) |
220.5° |
|
| Sep first |
12.1 |
|
Sep last |
13.54 |
|
Sep. Now (ρ) |
13.603" |
|
| Mag pri |
8.11 |
|
Mag sec |
8.27 |
|
delta mag (ΔM) |
0.16 |
|
Spectral class |
K0 (yellow-orange) |
|
| Pri motion ra |
-164 |
|
Sec motion ra |
-169 |
|
| Pri motion dec |
-123 |
|
Sec motion dec |
-136 |
|
| Notes |
N
O
T
(See Notes, Orbital solution, Parallax indicates physical) |
|
rPM=0.064 (< 0.3, Physical double)
This double is physical.
12115+5325 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
MZ UMa |
28287 |
12 11 28 +53 25 18 |
STF 1608 AB |
2023 |
143 |
221 |
13.5 |
8.11 |
8.27 |
0.16 |
Y |
<=== |
| Show |
|
28287 |
12 11 28 +53 25 18 |
SHY 233 AC |
1999 |
3 |
117 |
999.9 |
8.10 |
11.27 |
3.17 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Var name |
MZ UMa |
|
Constellation |
Ursa Major |
|
SAO |
28287 |
|
HIP |
59432 |
|
| Tycho2 |
3834-01089-1 |
|
Gaia DR2 |
1572914025633785728 |
|
HD |
105963 |
|
GC |
16647 |
|
| BD |
BD+54 1499 |
|
Distance |
30.15 |
|
Distance ly |
98.35 |
|
ORBITAL ELEMENTS
| Period (P) | 2236.0301y | ± 817.4875 |
Periastron (T) | 2434.5743y | ± 163.3266 |
Semi-major axis (a) | 19.66795a | ± 9.16357 |
| Eccentricity (e) | 0.6409 | ± 0.27401 |
Inclination (i) | 92.932° | ± 1.869 |
Longitude of periastron (ω) | 266.009° | ± 28.895 |
| Node (Ω) | 36.653° | ± 1.36 |
Notes | n | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2014 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
220.8 |
13.317 |
| 2001 |
220.8 |
13.329 |
| 2002 |
220.8 |
13.342 |
| 2003 |
220.8 |
13.354 |
| 2004 |
220.7 |
13.366 |
| 2005 |
220.7 |
13.379 |
| 2006 |
220.7 |
13.391 |
| 2007 |
220.7 |
13.403 |
| 2008 |
220.7 |
13.415 |
| 2009 |
220.7 |
13.427 |
| 2010 |
220.7 |
13.439 |
| 2011 |
220.6 |
13.451 |
| 2012 |
220.6 |
13.463 |
| 2013 |
220.6 |
13.474 |
| 2014 |
220.6 |
13.486 |
| 2015 |
220.6 |
13.498 |
| 2016 |
220.6 |
13.509 |
| 2017 |
220.6 |
13.521 |
| 2018 |
220.5 |
13.532 |
| 2019 |
220.5 |
13.543 |
| 2020 |
220.5 |
13.554 |
| 2021 |
220.5 |
13.566 |
| 2022 |
220.5 |
13.577 |
| 2023 |
220.5 |
13.588 |
| 2024 |
220.5 |
13.599 |
| 2025 |
220.5 |
13.610 |
| 2026 |
220.4 |
13.620 |
| 2027 |
220.4 |
13.631 |
| 2028 |
220.4 |
13.642 |
| 2029 |
220.4 |
13.652 |
| 2030 |
220.4 |
13.663 |
| 2031 |
220.4 |
13.673 |
| 2032 |
220.4 |
13.684 |
| 2033 |
220.3 |
13.694 |
| 2034 |
220.3 |
13.704 |
| 2035 |
220.3 |
13.714 |
| 2036 |
220.3 |
13.724 |
| 2037 |
220.3 |
13.734 |
| 2038 |
220.3 |
13.744 |
| 2039 |
220.3 |
13.754 |
| 2040 |
220.3 |
13.764 |
| 2041 |
220.2 |
13.773 |
| 2042 |
220.2 |
13.783 |
| 2043 |
220.2 |
13.792 |
| 2044 |
220.2 |
13.802 |
| 2045 |
220.2 |
13.811 |
| 2046 |
220.2 |
13.820 |
| 2047 |
220.2 |
13.829 |
| 2048 |
220.2 |
13.839 |
| 2049 |
220.1 |
13.848 |
| 2050 |
220.1 |
13.856 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
|
|
