13198+4747 HU 644 AB (HD 115953)
13h 19m 45.58s +47° 46' 41.1" P.A. 354.00 sep 0.1 mag 9.11,9.87 Sp M2V dist. 10.71 pc (34.94 l.y.)
Coord 2000 |
13198+4747 |
|
Discov num |
HU 644 |
|
Comp |
AB |
|
Coord arcsec 2000 |
13 19 45.58 +47 46 41.1 |
|
Date first |
1904 |
|
Date last |
2019 |
|
Obs |
150 |
|
Pa first |
99 |
|
Pa last |
354.4 |
|
P.A. Now (θ) |
275.7° |
|
Sep first |
0.9 |
|
Sep last |
0.086 |
|
Sep. Now (ρ) |
0.901" |
|
Mag pri |
9.11 |
|
Mag sec |
9.87 |
|
delta mag (ΔM) |
0.76 |
|
Spectral class |
M2V (red) |
|
Pri motion ra |
+226 |
|
Sec motion ra |
|
|
Pri motion dec |
-024 |
|
Sec motion dec |
|
|
Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
13198+4747 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
44566 |
13 19 46 +47 46 41 |
CHR 193 Aa,Ab |
2019 |
14 |
97 |
0.1 |
9.30 |
11.00 |
1.70 |
|
|
Show |
HD 115953 |
44566 |
13 19 46 +47 46 41 |
HU 644 AB |
2019 |
150 |
354 |
0.1 |
9.11 |
9.87 |
0.76 |
Y |
<=== |
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 115953 |
|
Constellation |
Canes Venatici |
|
SAO |
44566 |
|
HIP |
65026 |
|
Tycho2 |
3460-02162-1 |
|
Gaia DR2 |
1552921051659352960 |
|
HD |
115953 |
|
ADS |
8862 |
|
GL |
Gl 508A |
|
BD |
BD+48 2108 |
|
Distance |
10.71 |
|
Distance ly |
34.94 |
|
ORBITAL ELEMENTS
Period (P) | 49.34y | ± 0.2 |
Periastron (T) | 1968.13y | ± 0.42 |
Semi-major axis (a) | 1.546a | ± 0.005 |
Eccentricity (e) | 0.209 | ± 0 |
Inclination (i) | 94.4° | ± 0.1 |
Longitude of periastron (ω) | 72.9° | ± 2.1 |
Node (Ω) | 90.9° | ± 0.1 |
Notes | n | |
Reference | Msn2021c | |
Equinox | | |
Last observation | 2019 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
103.3 |
0.600 |
2001 |
100.4 |
0.743 |
2002 |
98.4 |
0.878 |
2003 |
96.9 |
1.004 |
2004 |
95.7 |
1.118 |
2005 |
94.8 |
1.218 |
2006 |
93.9 |
1.301 |
2007 |
93.2 |
1.364 |
2008 |
92.5 |
1.404 |
2009 |
91.9 |
1.420 |
2010 |
91.2 |
1.408 |
2011 |
90.5 |
1.366 |
2012 |
89.8 |
1.293 |
2013 |
88.9 |
1.188 |
2014 |
87.9 |
1.051 |
2015 |
86.5 |
0.883 |
2016 |
84.4 |
0.689 |
2017 |
80.4 |
0.475 |
2018 |
69.5 |
0.252 |
2019 |
357.6 |
0.095 |
2020 |
291.8 |
0.263 |
2021 |
281.6 |
0.487 |
2022 |
277.8 |
0.702 |
2023 |
275.7 |
0.901 |
2024 |
274.4 |
1.077 |
2025 |
273.4 |
1.229 |
2026 |
272.6 |
1.355 |
2027 |
272.0 |
1.456 |
2028 |
271.4 |
1.530 |
2029 |
270.8 |
1.580 |
2030 |
270.3 |
1.606 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|