13155+4051 CHR 180 (19 CVn)

 
 
13h 15m 32.05s +40° 51' 18.6" P.A. 69.00 sep 0.7 mag 5.87,9.48 Sp A7V dist. 74.07 pc (241.62 l.y.)
 
 
Coord 2000 13155+4051 Discov num CHR 180 Comp Coord arcsec 2000 13 15 32.05 +40 51 18.6
Date first 1988 Date last 2021 Obs 16
Pa first 2 Pa last 68.8 P.A. Now (θ) 57.7°
Sep first 0.3 Sep last 0.681 Sep. Now (ρ) 0.618"
Mag pri 5.87 Mag sec 9.48 delta mag (ΔM) 3.61 Spectral class A7V (white)
Pri motion ra -111 Sec motion ra
Pri motion dec +011 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name 19 CVn Constellation Canes Venatici SAO 44531 HIP 64692
Tycho2 3022-02305-1 Gaia DR2 1524888216726645248 HD 115271 HR 5004
GC 17953 BD BD+41 2374 Flamsteed 19 Canum Venaticorum Flamsteed name 19 CVn
Distance 74.07 Distance ly 241.62
 
 
ORBITAL ELEMENTS
 
 
Period (P)219.2y Periastron (T)2201.7y Semi-major axis (a)0.745a
Eccentricity (e)0.686 Inclination (i)44.5° Longitude of periastron (ω)273.3°
Node (Ω)22.2° Notes ReferenceCve2015b
Equinox2000 Last observation2010 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 39.9 0.500
2001 41.8 0.513
2002 43.5 0.526
2003 45.2 0.538
2004 46.8 0.550
2005 48.3 0.562
2006 49.8 0.572
2007 51.2 0.583
2008 52.6 0.593
2009 53.9 0.603
2010 55.2 0.612
2011 56.4 0.621
2012 57.6 0.630
2013 58.8 0.638
2014 60.0 0.646
2015 61.1 0.654
2016 62.2 0.662
2017 63.2 0.669
2018 64.3 0.676
2019 65.3 0.683
2020 66.3 0.690
2021 67.3 0.697
2022 68.3 0.703
2023 69.2 0.709
2024 70.1 0.715
2025 71.1 0.721
2026 72.0 0.727
2027 72.9 0.732
2028 73.7 0.738
2029 74.6 0.743
2030 75.4 0.748
2031 76.3 0.753
2032 77.1 0.758
2033 77.9 0.763
2034 78.7 0.768
2035 79.5 0.772
2036 80.3 0.777
2037 81.1 0.781
2038 81.9 0.785
2039 82.6 0.789
2040 83.4 0.793
2041 84.1 0.797
2042 84.9 0.801
2043 85.6 0.804
2044 86.3 0.808
2045 87.1 0.812
2046 87.8 0.815
2047 88.5 0.818
2048 89.2 0.822
2049 89.9 0.825
2050 90.6 0.828


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds13155%2B4051a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic