13091+2127 HU  572

 
 
13h 09m 08.52s +21 27' 22.0" P.A. 332.4 sep 0.53 mag 8.73,10.08 Sp G5 dist. 78.43 pc (255.84 l.y.)
 
 
Coord 2000
13091+2127
Discov num
HU  572
Comp
Coord arcsec 2000
13 09 08.52 +21 27 22.0
Date first
1902
Date last
2010
Obs
55
Pa first
349
Pa last
342
P.A. Now (θ)
332.4°
Sep first
0.4
Sep last
0.4
Sep. Now (ρ)
0.53"
Mag pri
8.73
Mag sec
10.08
delta mag (ΔM)
1.35
Spectral class
G5 (yellow)
Pri motion ra
-022
Sec motion ra
Pri motion dec
-014
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
342.3
Precise sep
0.44
Constellation
Coma Berenices
SAO
82677
HIP
64175
Tycho2
1456-00108-1
HD
114255
ADS
8799
BD
BD+22 2545
Distance
78.43
Distance ly
255.84
last precise pa
342.3
last precise sep
0.44
 
 
ORBITAL ELEMENTS
 
 
Period (P)102.9y Periastron (T)1986.22y Semi-major axis (a)0.4a
Eccentricity (e)0.516 Inclination (i)145° Longitude of periastron (ω)30.9°
Node (Ω)153.7° Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2011
label rho theta
2000 0.329 8.1
2001 0.346 4.6
2002 0.362 1.5
2003 0.378 358.6
2004 0.393 356.0
2005 0.407 353.5
2006 0.421 351.2
2007 0.434 349.1
2008 0.447 347.0
2009 0.459 345.1
2010 0.470 343.3
2011 0.481 341.6
2012 0.491 339.9
2013 0.501 338.3
2014 0.510 336.8
2015 0.518 335.3
2016 0.526 333.8
2017 0.533 332.4
2018 0.540 331.1
2019 0.546 329.7
2020 0.552 328.4
2021 0.557 327.2
2022 0.562 325.9
2023 0.567 324.7
2024 0.570 323.5
2025 0.574 322.3
2026 0.577 321.1
2027 0.579 319.9
2028 0.581 318.7
2029 0.583 317.6
2030 0.584 316.4

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

grafico orbita





wds13091%2B2127a.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
13091+2127 HU 572 1994 52 16 0.1 8.73 10.08 G5 NO 130908.52+212722.0
13091+2127 HU 572 2009 53 345 0.5 8.73 10.08 G5 NO 130908.52+212722.0
13091+2127 HU 572 2010 55 342 0.4 8.73 10.08 G5 O 130908.52+212722.0

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