02589+2137 BU  525

 
 
02h 58m 53.11s +21 37' 03.9" P.A. 277.6 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
179
Pa first
105
Pa last
271
P.A. Now (θ)
277.6°
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)505y± 126 Periastron (T)1947.6y± 33.9 Semi-major axis (a)0.647a± 0.152
Eccentricity (e)0.256± 0.123 Inclination (i)62.3°± 5.3 Longitude of periastron (ω)303.8°± 41
Node (Ω)265.2°± 3.6 Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2015
label rho theta
2000 0.536 267.2
2001 0.537 267.6
2002 0.538 268.1
2003 0.539 268.6
2004 0.540 269.0
2005 0.541 269.5
2006 0.542 270.0
2007 0.542 270.4
2008 0.543 270.9
2009 0.543 271.3
2010 0.543 271.8
2011 0.544 272.2
2012 0.544 272.7
2013 0.544 273.1
2014 0.544 273.6
2015 0.544 274.0
2016 0.543 274.5
2017 0.543 274.9
2018 0.542 275.4
2019 0.542 275.9
2020 0.541 276.3
2021 0.541 276.8
2022 0.540 277.2
2023 0.539 277.7
2024 0.538 278.2
2025 0.537 278.6
2026 0.536 279.1
2027 0.535 279.6
2028 0.534 280.0
2029 0.532 280.5
2030 0.531 281.0

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
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
02589+2137 BU 525 2006 176 267 0.6 7.47 7.45 A3 NOD 025853.11+213703.9
02589+2137 BU 525 2008 178 272 0.6 7.47 7.45 A3 NOD 025853.11+213703.9
02589+2137 BU 525 2009 179 271 0.5 7.47 7.45 A3 NOD 025853.11+213703.9
02589+2137 BU 525 2010 180 272 0.6 7.47 7.45 A3 NOD 025853.11+213703.9
02589+2137 BU 525 2014 176 273 0.6 7.47 7.45 A3 O 025853.11+213703.9
02589+2137 BU 525 2015 178 271 0.6 7.47 7.45 A3 O 025853.11+213703.9

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