02095+3459 MKT   4 (Bet Tri)

 
 
02H 09M 32.52S +34 59' 14.6" P.A. 46 MAG 3.00, SP A5 DIST. 38.9 PC (126.89 L.Y.)
 
 
Coord 2000
02095+3459
Discov num
MKT   4
Comp
Coord arcsec 2000
02 09 32.52 +34 59 14.6
Date first
1989
Date last
1990
Obs
34
Pa first
258
Pa last
46
P.A. Now (θ)
46°
Sep first
0.0
Sep last
0.0
Sep. Now (ρ)
0"
Mag pri
3.00
Mag sec
delta mag (ΔM)
Spectral class
A5 (white)
Pri motion ra
+148
Sec motion ra
Pri motion dec
-040
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name
Bet Tri
Constellation
Triangulum
SAO
55306
HIP
10064
Tycho2
2317-01647-1
HD
13161
HR
622
GC
2572
BD
BD+34 381
Bayer
Beta Trianguli
Bayer name
Bet Tri
Flamsteed
4 Trianguli
Flamsteed name
4 Tri
Distance
38.9
Distance ly
126.89
last precise pa
45.9
last precise sep
0.006
 
 
ORBITAL ELEMENTS
 
 
Period (P)31.387d± 0.001 Periastron (T)47729.07d (1989.554y)± 0.03 Semi-major axis (a)8.02m± 0.05
Eccentricity (e)0.44± 0.002 Inclination (i)129.9°± 0.2 Longitude of periastron (ω)298.1°± 0.2
Node (Ω)64.9°± 0.3 Note Grade1(1=Definitive, 9=Indet.)
Equinox2000 Last observation1990
label rho theta
2000-01-01 0.009 285.2
2001-01-01 0.006 18.5
2002-01-01 0.008 241.3
2003-01-01 0.008 301.4
2004-01-01 0.006 49.8
2005-01-01 0.009 257.5
2006-01-01 0.007 321.8
2007-01-01 0.004 99.5
2008-01-01 0.010 270.9
2009-01-01 0.007 347.7
2010-01-01 0.004 206.5
2011-01-01 0.009 284.5
2012-01-01 0.006 17.1
2013-01-01 0.008 240.4
2014-01-01 0.008 300.6
2015-01-01 0.006 48.3
2016-01-01 0.009 256.9
2017-01-01 0.007 320.8
2018-01-01 0.004 95.8
2019-01-01 0.010 270.3
2020-01-01 0.007 346.4
2021-01-01 0.004 203.6
2022-01-01 0.009 283.9
2023-01-01 0.006 15.7
2024-01-01 0.008 239.4
2025-01-01 0.008 299.7
2026-01-01 0.006 46.8
2027-01-01 0.009 256.2
2028-01-01 0.007 319.8
2029-01-01 0.004 92.3
2030-01-01 0.010 269.7

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