05484+2052 STT 118 AB
05h 48m 22.36s +20° 52' 10.3" P.A. 320.00 sep 0.1 mag 6.32,7.57 Sp B9Vn dist. 167.5 pc (546.38 l.y.)
Coord 2000 |
05484+2052 |
|
Discov num |
STT 118 |
|
Comp |
AB |
|
Coord arcsec 2000 |
05 48 22.36 +20 52 10.3 |
|
Date first |
1843 |
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Date last |
2018 |
|
Obs |
66 |
|
Pa first |
335 |
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Pa last |
319.6 |
|
P.A. Now (θ) |
319.6° |
|
Sep first |
0.4 |
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Sep last |
0.149 |
|
Sep. Now (ρ) |
0.149" |
|
Mag pri |
6.32 |
|
Mag sec |
7.57 |
|
delta mag (ΔM) |
1.25 |
|
Spectral class |
B9Vn (blue-white) |
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Pri motion ra |
+007 |
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Sec motion ra |
|
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Pri motion dec |
-018 |
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Sec motion dec |
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Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
05484+2052 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
77578 |
05 48 22 +20 52 10 |
STT 118 AB |
2018 |
66 |
320 |
0.1 |
6.32 |
7.57 |
1.25 |
Y |
<=== |
Show |
HD 38693 |
77578 |
05 48 22 +20 52 10 |
STTA 67 AB,C |
2013 |
33 |
162 |
75.4 |
6.01 |
8.29 |
2.28 |
|
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Triple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Taurus |
|
SAO |
77578 |
|
HIP |
27421 |
|
Tycho2 |
1311-02653-1 |
|
Gaia DR2 |
3400081795838800896 |
|
HD |
38670 |
|
HR |
1997 |
|
GC |
7266 |
|
ADS |
4392 |
|
BD |
BD+20 1105 |
|
Distance |
167.5 |
|
Distance ly |
546.38 |
|
ORBITAL ELEMENTS
Period (P) | 231.5y | |
Periastron (T) | 2003y | |
Semi-major axis (a) | 0.365a | |
Eccentricity (e) | 0.834 | |
Inclination (i) | 91.2° | |
Longitude of periastron (ω) | 351.2° | |
Node (Ω) | 137.9° | |
Notes | n | |
Reference | Tok2017c | |
Equinox | 2000 | |
Last observation | 2016 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
144.9 |
0.015 |
2001 |
140.2 |
0.034 |
2002 |
138.9 |
0.050 |
2003 |
138.1 |
0.060 |
2004 |
137.4 |
0.060 |
2005 |
136.7 |
0.053 |
2006 |
135.6 |
0.040 |
2007 |
133.3 |
0.026 |
2008 |
124.7 |
0.011 |
2009 |
346.1 |
0.006 |
2010 |
326.2 |
0.021 |
2011 |
323.1 |
0.036 |
2012 |
321.8 |
0.051 |
2013 |
321.1 |
0.066 |
2014 |
320.7 |
0.080 |
2015 |
320.3 |
0.094 |
2016 |
320.1 |
0.108 |
2017 |
319.9 |
0.121 |
2018 |
319.8 |
0.134 |
2019 |
319.6 |
0.147 |
2020 |
319.5 |
0.159 |
2021 |
319.5 |
0.171 |
2022 |
319.4 |
0.183 |
2023 |
319.3 |
0.195 |
2024 |
319.3 |
0.206 |
2025 |
319.2 |
0.217 |
2026 |
319.2 |
0.228 |
2027 |
319.1 |
0.238 |
2028 |
319.1 |
0.249 |
2029 |
319.0 |
0.259 |
2030 |
319.0 |
0.269 |
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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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