01546+2049 MKT 3 (Sheratan)

 
 
01h 54m 38.35s +20° 48' 29.9" P.A. 102.00 sep 0.1 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 2020 Obs 15
Pa first 93 Pa last 102.2 P.A. Now (θ) 101.2°
Sep first 0.1 Sep last 0.064 Sep. Now (ρ) 0.062"
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
 
 
Common name Sheratan Var name NSV658 Ari Constellation Aries SAO 75012
HIP 8903 Tycho2 1212-01935-1 Gaia DR2 97054342356001024 HD 11636
HR 553 GC 2309 BD BD+20 306 Bayer Beta Arietis
Bayer name Bet Ari Flamsteed 6 Arietis Flamsteed name 6 Ari FK5 66
Distance 17.99 Distance ly 58.68 Bayer greek β Ari
 
 
ORBITAL ELEMENTS
 
 
Period (P)106.99442d± 0.00069 Periastron (T)44809.1016d (1981.559y)± 0.0066 Semi-major axis (a)36m± 0.54
Eccentricity (e)0.8801± 0.0008 Inclination (i)47.5°± 0.54 Longitude of periastron (ω)204.9°± 0.33
Node (Ω)83.3°± 0.27 Notesn ReferencePbx2000b
Equinox Last observation Grade2(1=Definitive, 9=Indet.)
label theta rho
2000-01-01 145.5 0.015
2001-01-01 95.8 0.063
2002-01-01 113.5 0.046
2003-01-01 87.8 0.049
2004-01-01 104.7 0.061
2005-01-01 47.1 0.009
2006-01-01 98.3 0.064
2007-01-01 119.4 0.037
2008-01-01 91.4 0.056
2009-01-01 107.6 0.057
2010-01-01 78.0 0.031
2011-01-01 100.8 0.064
2012-01-01 130.8 0.024
2013-01-01 94.4 0.061
2014-01-01 111.2 0.051
2015-01-01 85.3 0.044
2016-01-01 103.3 0.063
2017-01-01 192.0 0.007
2018-01-01 97.0 0.064
2019-01-01 115.9 0.042
2020-01-01 89.6 0.053
2021-01-01 106.0 0.059
2022-01-01 70.1 0.021
2023-01-01 99.5 0.065
2024-01-01 123.6 0.031
2025-01-01 92.9 0.059
2026-01-01 109.2 0.054
2027-01-01 82.1 0.038
2028-01-01 101.9 0.064
2029-01-01 143.1 0.016
2030-01-01 95.6 0.063
2031-01-01 113.2 0.047
2032-01-01 87.5 0.049
2033-01-01 104.5 0.061
2034-01-01 38.7 0.008
2035-01-01 98.2 0.064
2036-01-01 119.0 0.037
2037-01-01 91.2 0.056
2038-01-01 107.5 0.057
2039-01-01 77.4 0.030
2040-01-01 100.6 0.064
2041-01-01 129.8 0.025
2042-01-01 94.2 0.061
2043-01-01 111.0 0.051
2044-01-01 85.0 0.044
2045-01-01 103.1 0.063
2046-01-01 181.0 0.008
2047-01-01 96.8 0.064
2048-01-01 115.6 0.043
2049-01-01 89.4 0.052
2050-01-01 105.9 0.059


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds01546%2B2049a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic