02424+2001 BLA 1 Aa,Ab
02h 42m 21.92s +20° 00' 41.7" P.A. 62.00 sep 0.0 mag 5.69,6.20 Sp A0V dist. 116.82 pc (381.07 l.y.)
Coord 2000 |
02424+2001 |
|
Discov num |
BLA 1 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
02 42 21.92 +20 00 41.7 |
|
Date first |
1975 |
|
Date last |
2021 |
|
Obs |
43 |
|
Pa first |
327 |
|
Pa last |
61.7 |
|
P.A. Now (θ) |
87.2° |
|
Sep first |
0.0 |
|
Sep last |
0.033 |
|
Sep. Now (ρ) |
0.052" |
|
Mag pri |
5.69 |
|
Mag sec |
6.20 |
|
delta mag (ΔM) |
0.51 |
|
Spectral class |
A0V (white) |
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Pri motion ra |
+025 |
|
Sec motion ra |
|
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Pri motion dec |
-046 |
|
Sec motion dec |
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Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
02424+2001 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
93062 |
02 42 22 +20 00 42 |
BLA 1 Aa,Ab |
2021 |
43 |
62 |
0.0 |
5.69 |
6.20 |
0.51 |
Y |
<=== |
Show |
Mu Ari |
93062 |
02 42 22 +20 00 42 |
BU 522 AB |
2017 |
12 |
265 |
18.6 |
5.69 |
12.20 |
6.51 |
|
|
Show |
|
|
02 42 22 +20 00 42 |
OCC 9075 Ba,Bb |
1973 |
0 |
-1 |
0.0 |
12.40 |
14.50 |
2.10 |
|
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Quadruple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Aries |
|
SAO |
93062 |
|
HIP |
12640 |
|
Tycho2 |
1229-01969-1 |
|
Gaia DR2 |
84944355647503360 |
|
HD |
16811 |
|
HR |
793 |
|
GC |
3256 |
|
ADS |
2062 |
|
BD |
BD+19 403 |
|
Bayer |
Mu Arietis |
|
Bayer name |
Mu Ari |
|
Flamsteed |
34 Arietis |
|
Flamsteed name |
34 Ari |
|
Distance |
116.82 |
|
Distance ly |
381.07 |
|
Bayer greek |
μ Ari |
|
ORBITAL ELEMENTS
Period (P) | 8.845y | ± 0.046 |
Periastron (T) | 1981.099y | ± 0.063 |
Semi-major axis (a) | 0.0563a | ± 0.0008 |
Eccentricity (e) | 0.337 | ± 0.023 |
Inclination (i) | 71.2° | ± 1.1 |
Longitude of periastron (ω) | 92.3° | ± 1.7 |
Node (Ω) | 101° | ± 1 |
Notes | n | |
Reference | Msn1997a | |
Equinox | 2000 | |
Last observation | 1996 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
280.6 |
0.049 |
2001 |
295.3 |
0.050 |
2002 |
316.1 |
0.036 |
2003 |
4.1 |
0.024 |
2004 |
58.6 |
0.033 |
2005 |
82.5 |
0.049 |
2006 |
96.6 |
0.054 |
2007 |
116.5 |
0.032 |
2008 |
255.0 |
0.024 |
2009 |
283.1 |
0.051 |
2010 |
297.8 |
0.049 |
2011 |
321.1 |
0.034 |
2012 |
14.4 |
0.024 |
2013 |
63.7 |
0.036 |
2014 |
84.9 |
0.051 |
2015 |
98.8 |
0.052 |
2016 |
123.6 |
0.026 |
2017 |
263.5 |
0.030 |
2018 |
285.3 |
0.052 |
2019 |
300.4 |
0.047 |
2020 |
326.8 |
0.031 |
2021 |
24.5 |
0.025 |
2022 |
68.2 |
0.038 |
2023 |
87.2 |
0.052 |
2024 |
101.1 |
0.051 |
2025 |
135.2 |
0.020 |
2026 |
269.1 |
0.036 |
2027 |
287.6 |
0.053 |
2028 |
303.3 |
0.045 |
2029 |
333.4 |
0.029 |
2030 |
33.9 |
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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