12487+6019 MET 61 AB
12h 48m 39.46s +60° 19' 11.3" P.A. 285.00 sep 0.8 mag 4.55,17.27 Sp F5V dist. 24.04 pc (78.42 l.y.)
| Coord 2000 |
12487+6019 |
|
Discov num |
MET 61 |
|
Comp |
AB |
|
Coord arcsec 2000 |
12 48 39.46 +60 19 11.3 |
|
| Date first |
2004 |
|
Date last |
2014 |
|
Obs |
2 |
|
| Pa first |
117 |
|
Pa last |
284.6 |
|
P.A. Now (θ) |
284.6° |
|
| Sep first |
3.8 |
|
Sep last |
0.762 |
|
Sep. Now (ρ) |
0.762" |
|
| Mag pri |
4.55 |
|
Mag sec |
17.27 |
|
delta mag (ΔM) |
12.72 |
|
Spectral class |
F5V (yellow-white) |
|
| Pri motion ra |
+108 |
|
Sec motion ra |
|
|
| Pri motion dec |
-031 |
|
Sec motion dec |
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|
| Notes |
N
K
(See Notes, K-band or other infrared magnitudes) |
|
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
Nature of this double is uncertain.
12487+6019 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
12 48 39 +60 19 11 |
YSC 46 Aa,Ab |
2014 |
6 |
200 |
0.1 |
5.90 |
9.10 |
3.20 |
|
|
| Show |
|
15907 |
12 48 39 +60 19 11 |
MET 61 AB |
2014 |
2 |
285 |
0.8 |
4.55 |
17.27 |
12.72 |
|
<=== |
| Show |
|
|
12 48 39 +60 19 11 |
SHY 66 AC |
1999 |
3 |
138 |
999.9 |
5.89 |
6.88 |
0.99 |
|
|
| Show |
|
|
12 48 39 +60 19 11 |
SHY 66 AD |
1999 |
3 |
119 |
999.9 |
5.89 |
9.86 |
3.97 |
|
|
Quintuple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Ursa Major |
|
SAO |
15907 |
|
HIP |
62512 |
|
Tycho2 |
4162-01200-1 |
|
| Gaia DR2 |
1579858609793019264 |
|
HD |
111456 |
|
HR |
4867 |
|
GL |
Wo 9417 |
|
| BD |
BD+61 1320 |
|
Distance |
24.04 |
|
Distance ly |
78.42 |
|
SUSPECTED ORBITAL ELEMENTS
| Identifier | 12487+6019 GJ 9417 |
| coord_arcsec_2000 | 124839.34+601911.6 |
| Period (P) | 1574d (4.31y) | ± 170 |
Periastron (T) | 48566d (1991.845y) | ± 258 |
Semi-major axis (a) | 43.9m | ± 2.3 |
| Eccentricity (e) | 0.14 | ± 0.13 |
Inclination (i) | 107° | ± 2 |
Longitude of periastron (ω) | 164° | ± 63 |
| Node (Ω) | 30° | ± 90 |
Notes | | |
Reference | Gln2007 | |
| Equinox | | |
Last observation | 1991 | |
Grade | 9 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000-01-01 |
243.7 |
0.019 |
| 2001-01-01 |
195.5 |
0.031 |
| 2002-01-01 |
53.8 |
0.029 |
| 2003-01-01 |
27.5 |
0.049 |
| 2004-01-01 |
320.0 |
0.013 |
| 2005-01-01 |
207.3 |
0.038 |
| 2006-01-01 |
85.4 |
0.016 |
| 2007-01-01 |
33.4 |
0.049 |
| 2008-01-01 |
5.2 |
0.026 |
| 2009-01-01 |
217.9 |
0.035 |
| 2010-01-01 |
159.0 |
0.016 |
| 2011-01-01 |
40.0 |
0.043 |
| 2012-01-01 |
18.7 |
0.040 |
| 2013-01-01 |
235.9 |
0.022 |
| 2014-01-01 |
191.7 |
0.028 |
| 2015-01-01 |
50.2 |
0.032 |
| 2016-01-01 |
26.1 |
0.048 |
| 2017-01-01 |
298.4 |
0.012 |
| 2018-01-01 |
204.9 |
0.037 |
| 2019-01-01 |
74.2 |
0.019 |
| 2020-01-01 |
32.0 |
0.050 |
| 2021-01-01 |
359.6 |
0.023 |
| 2022-01-01 |
215.2 |
0.036 |
| 2023-01-01 |
143.8 |
0.014 |
| 2024-01-01 |
38.3 |
0.045 |
| 2025-01-01 |
16.4 |
0.037 |
| 2026-01-01 |
230.1 |
0.026 |
| 2027-01-01 |
187.0 |
0.025 |
| 2028-01-01 |
47.3 |
0.035 |
| 2029-01-01 |
24.6 |
0.047 |
| 2030-01-01 |
276.5 |
0.013 |
|
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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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