02589+2137 BU  525

 
 
02H 58M 53.11S +21 37' 03.9" P.A. 277 SEP 0.48 MAG 7.47,7.45 SP A3 DIST. 151.52 PC (494.26 L.Y.)
 
 
Coord 2000
02589+2137
Discov num
BU  525
Comp
Coord arcsec 2000
02 58 53.11 +21 37 03.9
Date first
1877
Date last
2015
Obs
178
Pa first
105
Pa last
271
P.A. Now (θ)
277°
Sep first
0.6
Sep last
0.6
Sep. Now (ρ)
0.48"
Mag pri
7.47
Mag sec
7.45
delta mag (ΔM)
0.02
Spectral class
A3 (white)
Pri motion ra
+044
Sec motion ra
+044
Pri motion dec
-019
Sec motion dec
-019
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Aries
SAO
75671
HIP
13892
Tycho2
1230-00912-1
HD
18484
ADS
2253
BD
BD+21 397
Distance
151.52
Distance ly
494.26
last precise pa
270.8
last precise sep
0.6
 
 
ORBITAL ELEMENTS
 
 
Period (P)241.903y Periastron (T)1846.948y Semi-major axis (a)0.442a
Eccentricity (e)0.217 Inclination (i)60.06° Longitude of periastron (ω)317.36°
Node (Ω)92.5° Note Grade4(1=Definitive, 9=Indet.)
Equinox Last observation1974
label rho theta
2000 0.510 267.3
2001 0.509 267.9
2002 0.509 268.4
2003 0.509 269.0
2004 0.508 269.5
2005 0.507 270.1
2006 0.506 270.6
2007 0.505 271.2
2008 0.503 271.7
2009 0.502 272.3
2010 0.500 272.9
2011 0.498 273.4
2012 0.496 274.0
2013 0.494 274.6
2014 0.491 275.2
2015 0.488 275.8
2016 0.486 276.4
2017 0.483 277.0
2018 0.479 277.6
2019 0.476 278.2
2020 0.472 278.8
2021 0.468 279.5
2022 0.464 280.1
2023 0.460 280.8
2024 0.456 281.5
2025 0.451 282.2
2026 0.446 282.9
2027 0.441 283.6
2028 0.436 284.3
2029 0.431 285.1
2030 0.426 285.8

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