05272+1758 MCA 19 Aa,Ab
05h 27m 10.09s +17° 57' 44.0" P.A. 92.00 sep 0.1 mag 5.80,6.80 Sp B5V dist. 168.35 pc (549.16 l.y.)
| Coord 2000 |
05272+1758 |
|
Discov num |
MCA 19 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
05 27 10.09 +17 57 44.0 |
|
| Date first |
1979 |
|
Date last |
2021 |
|
Obs |
32 |
|
| Pa first |
80 |
|
Pa last |
91.6 |
|
P.A. Now (θ) |
88° |
|
| Sep first |
0.1 |
|
Sep last |
0.097 |
|
Sep. Now (ρ) |
0.107" |
|
| Mag pri |
5.80 |
|
Mag sec |
6.80 |
|
delta mag (ΔM) |
1 |
|
Spectral class |
B5V (blue-white) |
|
| Pri motion ra |
+008 |
|
Sec motion ra |
|
|
| Pri motion dec |
-021 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
05272+1758 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
94554 |
05 27 10 +17 57 44 |
MCA 19 Aa,Ab |
2021 |
32 |
92 |
0.1 |
5.80 |
6.80 |
1.00 |
Y |
<=== |
| Show |
115 Tau |
94554 |
05 27 10 +17 57 44 |
STT 107 AB |
2016 |
17 |
305 |
10.1 |
5.39 |
11.10 |
5.71 |
|
|
| Show |
|
94554 |
05 27 10 +17 57 44 |
STT 107 AC |
2016 |
7 |
345 |
9.9 |
5.39 |
11.80 |
6.41 |
|
|
| Show |
|
|
05 27 10 +17 57 50 |
STT 107 BC |
2015 |
7 |
57 |
7.0 |
11.10 |
11.80 |
0.70 |
|
|
Quadruple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Taurus |
|
SAO |
94554 |
|
HIP |
25499 |
|
Tycho2 |
1300-02224-1 |
|
| Gaia DR2 |
3400339253355935744 |
|
HD |
35671 |
|
HR |
1808 |
|
GC |
6714 |
|
| ADS |
4038 |
|
BD |
BD+17 928 |
|
Flamsteed |
115 Tauri |
|
Flamsteed name |
115 Tau |
|
| FK5 |
1148 |
|
Distance |
168.35 |
|
Distance ly |
549.16 |
|
ORBITAL ELEMENTS
| Period (P) | 15.914y | ± 0.07 |
Periastron (T) | 2014.6y | ± 0.16 |
Semi-major axis (a) | 0.0757a | ± 0.0036 |
| Eccentricity (e) | 0.806 | ± 0.083 |
Inclination (i) | 109.4° | ± 7.3 |
Longitude of periastron (ω) | 317.1° | ± 5.6 |
| Node (Ω) | 251.9° | ± 1.7 |
Notes | n | |
Reference | Tok2020e | |
| Equinox | | |
Last observation | | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
161.3 |
0.020 |
| 2001 |
122.4 |
0.035 |
| 2002 |
108.5 |
0.052 |
| 2003 |
101.3 |
0.068 |
| 2004 |
96.7 |
0.081 |
| 2005 |
93.3 |
0.092 |
| 2006 |
90.6 |
0.101 |
| 2007 |
88.2 |
0.107 |
| 2008 |
86.1 |
0.110 |
| 2009 |
84.0 |
0.110 |
| 2010 |
81.9 |
0.107 |
| 2011 |
79.5 |
0.100 |
| 2012 |
76.6 |
0.088 |
| 2013 |
72.4 |
0.067 |
| 2014 |
61.0 |
0.031 |
| 2015 |
232.0 |
0.019 |
| 2016 |
155.8 |
0.021 |
| 2017 |
120.6 |
0.037 |
| 2018 |
107.7 |
0.054 |
| 2019 |
100.9 |
0.069 |
| 2020 |
96.4 |
0.082 |
| 2021 |
93.1 |
0.093 |
| 2022 |
90.4 |
0.101 |
| 2023 |
88.0 |
0.107 |
| 2024 |
85.9 |
0.110 |
| 2025 |
83.8 |
0.110 |
| 2026 |
81.7 |
0.107 |
| 2027 |
79.3 |
0.099 |
| 2028 |
76.4 |
0.086 |
| 2029 |
71.9 |
0.065 |
| 2030 |
58.2 |
0.026 |
|
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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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