12422+2622 A  1851

 
 
12h 42m 10.75s +26 21' 39.5" P.A. 55.2 sep 0.29 mag 10.09,10.08 Sp K4V dist. 44.01 pc (143.56 l.y.)
 
 
Coord 2000
12422+2622
Discov num
A  1851
Comp
Coord arcsec 2000
12 42 10.75 +26 21 39.5
Date first
1908
Date last
2010
Obs
87
Pa first
178
Pa last
357
P.A. Now (θ)
55.2°
Sep first
0.4
Sep last
0.4
Sep. Now (ρ)
0.29"
Mag pri
10.09
Mag sec
10.08
delta mag (ΔM)
0.01
Spectral class
K4V (yellow-orange)
Pri motion ra
+002
Sec motion ra
+002
Pri motion dec
+080
Sec motion dec
+080
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
357.3
Precise sep
0.407
Constellation
Coma Berenices
SAO
82443
HIP
61986
Tycho2
1992-00073-1
HD
110465
ADS
8635
BD
BD+27 2163
Distance
44.01
Distance ly
143.56
last precise pa
357.3
last precise sep
0.407
 
 
ORBITAL ELEMENTS
 
 
Period (P)61.3y Periastron (T)1959.3y Semi-major axis (a)0.415a
Eccentricity (e)0.252 Inclination (i)26° Longitude of periastron (ω)319.5°
Node (Ω)129.8° Note Grade2(1=Definitive, 9=Indet.)
Equinox Last observation
label rho theta
2000 0.485 307.7
2001 0.477 311.5
2002 0.469 315.4
2003 0.460 319.5
2004 0.449 323.8
2005 0.438 328.3
2006 0.425 333.0
2007 0.412 338.0
2008 0.398 343.4
2009 0.383 349.1
2010 0.368 355.4
2011 0.354 2.1
2012 0.339 9.4
2013 0.326 17.4
2014 0.314 26.0
2015 0.304 35.2
2016 0.297 45.0
2017 0.292 55.2
2018 0.290 65.6
2019 0.291 76.0
2020 0.295 86.3
2021 0.300 96.2
2022 0.306 105.8
2023 0.314 115.0
2024 0.321 123.7
2025 0.328 132.1
2026 0.335 140.1
2027 0.342 147.8
2028 0.348 155.2
2029 0.354 162.3
2030 0.360 169.2

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

grafico orbita





wds12422%2B2622a.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
12422+2622 A 1851 2001 83 313 0.5 10.09 10.08 K4V NOD 124210.75+262139.5
12422+2622 A 1851 2007 84 340 0.4 10.09 10.08 K4V NOD 124210.75+262139.5
12422+2622 A 1851 2010 85 357 0.4 10.09 10.08 K4V NOD 124210.75+262139.5

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