01546+2049 MKT   3 (Bet Ari)

 
 
01H 54M 38.35S +20 48' 29.9" P.A. 113 MAG 2.60,5.20 SP A5V DIST. 17.99 PC (58.68 L.Y.)
 
 
Coord 2000
01546+2049
Discov num
MKT   3
Comp
Coord arcsec 2000
01 54 38.35 +20 48 29.9
Date first
1988
Date last
2005
Obs
15
Pa first
93
Pa last
113
P.A. Now (θ)
113°
Sep first
0.1
Sep last
0.0
Sep. Now (ρ)
0"
Mag pri
2.60
Mag sec
5.20
delta mag (ΔM)
2.6
Spectral class
A5V (white)
Pri motion ra
+097
Sec motion ra
Pri motion dec
-108
Sec motion dec
Notes
N O R (See Notes, Orbital solution, Red magnitudes)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name
Bet Ari
Constellation
Aries
SAO
75012
HIP
8903
HD
11636
HR
553
GC
2309
GL
Gl 80
BD
BD+20 306
Bayer
Beta Arietis
Bayer name
Bet Ari
Flamsteed
6 Arietis
Flamsteed name
6 Ari
Distance
17.99
Distance ly
58.68
last precise pa
112.7
last precise sep
0.027
 
 
ORBITAL ELEMENTS
 
 
Period (P)106.9954d± 0.0005 Periastron (T)44274.276d (1980.095y)± 0.009 Semi-major axis (a)36.1m± 0.3
Eccentricity (e)0.895± 0.003 Inclination (i)44.7°± 1.3 Longitude of periastron (ω)209.1°± 1.2
Node (Ω)79.1°± 0.8 Note Grade2(1=Definitive, 9=Indet.)
Equinox Last observation1988
label rho theta
2000-01-01 0.017 141.4
2001-01-01 0.063 95.7
2002-01-01 0.047 113.1
2003-01-01 0.049 87.6
2004-01-01 0.061 104.5
2005-01-01 0.009 45.9
2006-01-01 0.064 98.2
2007-01-01 0.038 118.7
2008-01-01 0.056 91.3
2009-01-01 0.057 107.4
2010-01-01 0.031 77.9
2011-01-01 0.064 100.6
2012-01-01 0.025 129.0
2013-01-01 0.061 94.2
2014-01-01 0.051 110.9
2015-01-01 0.044 85.1
2016-01-01 0.063 103.1
2017-01-01 0.008 174.6
2018-01-01 0.064 96.8
2019-01-01 0.043 115.4
2020-01-01 0.053 89.5
2021-01-01 0.060 105.8
2022-01-01 0.021 69.8
2023-01-01 0.064 99.3
2024-01-01 0.033 122.5
2025-01-01 0.059 92.7
2026-01-01 0.055 108.9
2027-01-01 0.038 81.9
2028-01-01 0.064 101.8
2029-01-01 0.018 139.0
2030-01-01 0.062 95.5

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic