02517+4559 A  1281AB

 
 
02H 51M 39.69S +45 58' 44.9" P.A. 144.3 SEP 0.66 MAG 8.97,10.72 SP G5V DIST. 58.41 PC (190.53 L.Y.)
 
 
Coord 2000
02517+4559
Discov num
A  1281
Comp
AB
Coord arcsec 2000
02 51 39.69 +45 58 44.9
Date first
1906
Date last
2016
Obs
30
Pa first
189
Pa last
146
P.A. Now (θ)
144.3°
Sep first
0.5
Sep last
0.7
Sep. Now (ρ)
0.66"
Mag pri
8.97
Mag sec
10.72
delta mag (ΔM)
1.75
Spectral class
G5V (yellow)
Pri motion ra
+488
Sec motion ra
Pri motion dec
-286
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
02517+4559 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 38396 02517+4559 A 1281 AB 1906 2016 30 144 0.7 8.97 10.72 1.75 Y <===
Show 38396 02517+4559 RAO 45 AC 2000 2012 3 82 15.2 8.97 14.67 5.70
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Perseus
SAO
38396
HIP
13336
Tycho2
3297-01554-1
HD
17647
ADS
2173
BD
BD+45 669
Distance
58.41
Distance ly
190.53
last precise pa
146.2
last precise sep
0.68
 
 
ORBITAL ELEMENTS
 
 
Period (P)158.27y Periastron (T)1938.15y Semi-major axis (a)0.52a
Eccentricity (e)0.354 Inclination (i)43.8° Longitude of periastron (ω)149.6°
Node (Ω)167.5° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2012
label rho theta
2000 0.574 125.9
2001 0.580 127.1
2002 0.586 128.3
2003 0.592 129.5
2004 0.598 130.7
2005 0.604 131.9
2006 0.610 133.0
2007 0.615 134.1
2008 0.620 135.2
2009 0.625 136.2
2010 0.630 137.3
2011 0.635 138.3
2012 0.639 139.4
2013 0.644 140.4
2014 0.648 141.4
2015 0.652 142.3
2016 0.655 143.3
2017 0.659 144.3
2018 0.662 145.2
2019 0.665 146.2
2020 0.667 147.1
2021 0.670 148.0
2022 0.672 149.0
2023 0.674 149.9
2024 0.675 150.8
2025 0.677 151.7
2026 0.678 152.6
2027 0.679 153.5
2028 0.679 154.4
2029 0.679 155.3
2030 0.679 156.2

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