08507+0752 VDK   3 (HP Cnc)

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.

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

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			Grade	4	(1=Definitive, 9=Indet.)
Equinox			Last observation	2015

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.
		Measures: green=micrometric, blue=interferometric, purple=photographic

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.