13379+4808 ES 608 AB
13h 37m 51.20s +48° 08' 17.2" P.A. 341.00 sep 1.5 mag 10.28,11.49 Sp M0.5+M1.5 dist. 22.14 pc (72.22 l.y.)
| Coord 2000 |
13379+4808 |
|
Discov num |
ES 608 |
|
Comp |
AB |
|
Coord arcsec 2000 |
13 37 51.20 +48 08 17.2 |
|
| Date first |
1908 |
|
Date last |
2019 |
|
Obs |
73 |
|
| Pa first |
272 |
|
Pa last |
340.7 |
|
P.A. Now (θ) |
340.7° |
|
| Sep first |
2.6 |
|
Sep last |
1.533 |
|
Sep. Now (ρ) |
1.533" |
|
| Mag pri |
10.28 |
|
Mag sec |
11.49 |
|
delta mag (ΔM) |
1.21 |
|
Spectral class |
M0.5+M1.5 (red/red) |
|
| Pri motion ra |
-256 |
|
Sec motion ra |
-228 |
|
| Pri motion dec |
-124 |
|
Sec motion dec |
-137 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
rPM=0.109 (< 0.3, Physical double)
This double is physical.
13379+4808 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
13 37 51 +48 08 17 |
ES 608 AB |
2019 |
73 |
341 |
1.5 |
10.28 |
11.49 |
1.21 |
Y |
<=== |
| Show |
|
|
13 37 51 +48 08 17 |
LDS 5784 AB,C |
2017 |
7 |
258 |
109.7 |
9.77 |
14.47 |
4.70 |
|
|
Triple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Ursa Major |
|
HIP |
66492 |
|
Tycho2 |
3466-00862-1 |
|
Gaia DR2 |
1552284674943267072 |
|
| ADS |
8980 |
|
BD |
BD+48 2138 |
|
Distance |
22.14 |
|
Distance ly |
72.22 |
|
ORBITAL ELEMENTS
| Period (P) | 322.7724y | ± 153.4371 |
Periastron (T) | 1933.9428y | ± 17.0705 |
Semi-major axis (a) | 3.53563a | ± 1.08965 |
| Eccentricity (e) | 0.4779 | ± 0.22952 |
Inclination (i) | 74.317° | ± 5.999 |
Longitude of periastron (ω) | 116.016° | ± 37.612 |
| Node (Ω) | 110.117° | ± 4.645 |
Notes | n | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2015 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
318.6 |
1.953 |
| 2001 |
319.4 |
1.928 |
| 2002 |
320.3 |
1.902 |
| 2003 |
321.3 |
1.876 |
| 2004 |
322.2 |
1.851 |
| 2005 |
323.2 |
1.825 |
| 2006 |
324.2 |
1.800 |
| 2007 |
325.2 |
1.774 |
| 2008 |
326.3 |
1.749 |
| 2009 |
327.4 |
1.724 |
| 2010 |
328.5 |
1.699 |
| 2011 |
329.7 |
1.674 |
| 2012 |
330.9 |
1.650 |
| 2013 |
332.1 |
1.626 |
| 2014 |
333.4 |
1.603 |
| 2015 |
334.7 |
1.580 |
| 2016 |
336.1 |
1.557 |
| 2017 |
337.5 |
1.535 |
| 2018 |
338.9 |
1.514 |
| 2019 |
340.3 |
1.493 |
| 2020 |
341.8 |
1.473 |
| 2021 |
343.4 |
1.454 |
| 2022 |
345.0 |
1.435 |
| 2023 |
346.6 |
1.418 |
| 2024 |
348.3 |
1.401 |
| 2025 |
350.0 |
1.385 |
| 2026 |
351.7 |
1.370 |
| 2027 |
353.5 |
1.357 |
| 2028 |
355.3 |
1.344 |
| 2029 |
357.2 |
1.332 |
| 2030 |
359.1 |
1.322 |
| 2031 |
1.0 |
1.313 |
| 2032 |
2.9 |
1.305 |
| 2033 |
4.8 |
1.299 |
| 2034 |
6.8 |
1.293 |
| 2035 |
8.8 |
1.289 |
| 2036 |
10.8 |
1.287 |
| 2037 |
12.8 |
1.285 |
| 2038 |
14.8 |
1.286 |
| 2039 |
16.8 |
1.287 |
| 2040 |
18.8 |
1.290 |
| 2041 |
20.8 |
1.294 |
| 2042 |
22.8 |
1.300 |
| 2043 |
24.7 |
1.307 |
| 2044 |
26.6 |
1.315 |
| 2045 |
28.5 |
1.324 |
| 2046 |
30.4 |
1.335 |
| 2047 |
32.2 |
1.347 |
| 2048 |
34.1 |
1.360 |
| 2049 |
35.8 |
1.374 |
| 2050 |
37.6 |
1.389 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
|
|
