08507+0752 VDK   3 (HP Cnc)

 
 
08h 50m 42.33s +07 51' 52.4" P.A. 195.10 sep 1.1 mag 9.91,10.09 Sp K0V dist. 23.09 pc (75.32 l.y.)
 
 
Coord 2000
08507+0752
Discov num
VDK   3
Comp
Coord arcsec 2000
08 50 42.33 +07 51 52.4
Date first
1912
Date last
2018
Obs
109
Pa first
82
Pa last
190
P.A. Now (θ)
195.1°
Sep first
1.9
Sep last
1.1
Sep. Now (ρ)
1.07"
Mag pri
9.91
Mag sec
10.09
delta mag (ΔM)
0.18
Spectral class
K0V (yellow-orange)
Pri motion ra
-069
Sec motion ra
Pri motion dec
+009
Sec motion dec
Notes
N O (See Notes, Orbital solution)
Visually invisible, K-band or other infrared star This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
189.5
Precise sep
1.095
Var name
HP Cnc
Constellation
Cancer
HIP
43422
Tycho2
0810-00175-1
Gaia DR2
4285041792
ADS
7044
GL
Gl 323A
BD
BD+08 2131
Distance
23.09
Distance ly
75.32
last precise pa
189.5
last precise sep
1.095
 
 
ORBITAL ELEMENTS
 
 
Period (P)223.9709y± 49.8554 Periastron (T)2044.3921y± 9.3236 Semi-major axis (a)2.21221a± 0.34151
Eccentricity (e)0.25697± 0.09162 Inclination (i)56.16°± 5.079 Longitude of periastron (ω)142.122°± 37.028
Node (Ω)124.402°± 3.498 Note Grade4(1=Definitive, 9=Indet.)
Equinox Last observation2015
label rho theta
2000 1.821 150.3
2001 1.782 151.6
2002 1.743 153.0
2003 1.703 154.4
2004 1.663 155.9
2005 1.622 157.5
2006 1.581 159.1
2007 1.540 160.9
2008 1.499 162.7
2009 1.459 164.6
2010 1.418 166.7
2011 1.378 168.8
2012 1.339 171.1
2013 1.300 173.6
2014 1.262 176.1
2015 1.226 178.9
2016 1.191 181.8
2017 1.158 184.9
2018 1.127 188.1
2019 1.098 191.5
2020 1.072 195.1
2021 1.049 198.9
2022 1.029 202.8
2023 1.013 206.9
2024 1.001 211.1
2025 0.992 215.3
2026 0.988 219.6
2027 0.988 224.0
2028 0.992 228.3
2029 1.000 232.6
2030 1.011 236.8

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






wds08507%2B0752c.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
08507+0752 VDK 3 2007 100 161 1.6 9.91 10.09 NOD 085042.33+075152.4
08507+0752 VDK 3 2009 103 166 1.4 9.91 10.09 NOD 085042.33+075152.4
08507+0752 VDK 3 2010 104 168 1.4 9.91 10.09 NOD 085042.33+075152.4
08507+0752 VDK 3 2017 107 185 1.1 9.91 10.09 K0V NO 085042.33+075152.4
08507+0752 VDK 3 2018 108 190 1.1 9.91 10.09 K0V NO 085042.33+075152.4

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