08549+2612 A  2131AB

 
 
08h 54m 55.99s +26 11' 53.8" P.A. 49.1 sep 0.14 mag 6.95,9.02 Sp G2V+K0V dist. 49.02 pc (159.9 l.y.)
 
 
Coord 2000
08549+2612
Discov num
A  2131
Comp
AB
Coord arcsec 2000
08 54 55.99 +26 11 53.8
Date first
1910
Date last
2008
Obs
93
Pa first
255
Pa last
294
P.A. Now (θ)
49.1°
Sep first
0.3
Sep last
0.3
Sep. Now (ρ)
0.14"
Mag pri
6.95
Mag sec
9.02
delta mag (ΔM)
2.07
Spectral class
G2V+K0V (yellow/yellow-orange)
Pri motion ra
+061
Sec motion ra
+054
Pri motion dec
-451
Sec motion dec
-441
Notes
N O (See Notes, Orbital solution)
rPM=0.027 (< 0.3, Physical double)
This double is physical.
 
 
08549+2612 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 80503 08549+2612 A 2131 AB 1910 2008 93 49 0.1 6.95 9.02 2.07 Y <===
Show 80503 08549+2612 HO 357 AB,C 1892 2011 8 359 83.3 6.75 13.66 6.91
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
293.8
Precise sep
0.348
Constellation
Cancer
SAO
80503
HIP
43766
Tycho2
1946-01937-1
HD
76095
ADS
7082
BD
BD+26 1865
Distance
49.02
Distance ly
159.9
last precise pa
293.8
last precise sep
0.348
 
 
ORBITAL ELEMENTS
 
 
Period (P)45.02y Periastron (T)1973.16y Semi-major axis (a)0.347a
Eccentricity (e)0.475 Inclination (i)43.5° Longitude of periastron (ω)257.5°
Node (Ω)162.1° Note Grade2(1=Definitive, 9=Indet.)
Equinox Last observation1997
label rho theta
2000 0.361 254.5
2001 0.357 259.3
2002 0.353 264.2
2003 0.349 269.1
2004 0.345 274.2
2005 0.341 279.4
2006 0.337 284.8
2007 0.332 290.3
2008 0.327 295.9
2009 0.321 301.8
2010 0.313 307.9
2011 0.303 314.4
2012 0.291 321.4
2013 0.275 329.0
2014 0.254 337.8
2015 0.228 348.4
2016 0.197 2.0
2017 0.163 21.2
2018 0.137 49.1
2019 0.136 83.3
2020 0.162 111.8
2021 0.198 131.1
2022 0.236 144.2
2023 0.269 153.9
2024 0.297 161.5
2025 0.321 168.0
2026 0.340 173.6
2027 0.356 178.6
2028 0.368 183.3
2029 0.378 187.7
2030 0.385 192.0

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.

grafico orbita





wds08549%2B2612a.png orbit plot
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
08549+2612 A 2131 AB 1997 89 244 0.4 6.95 9.02 G2V+K0V NOD 085455.95+261157.8
08549+2612 A 2131 AB 2005 91 281 0.4 6.95 9.02 G2V+K0V NOD 085455.95+261157.8
08549+2612 A 2131 AB 2008 92 294 0.3 6.95 9.02 G2V K0V NOD 085455.95+261157.8

If you need more information about this double, apply for a data request form to the WDS.