18068-4325 HJ 5014

 
 
18h 06m 49.91s -43 25' 30.0" P.A. 358.7 sep 1.74 mag 5.65,5.68 Sp A5V+A5V dist. 41.84 pc (136.48 l.y.)
 
 
Coord 2000
18068-4325
Discov num
HJ 5014
Comp
Coord arcsec 2000
18 06 49.91 -43 25 30.0
Date first
1836
Date last
2016
Obs
121
Pa first
249
Pa last
3
P.A. Now (θ)
358.7°
Sep first
1.0
Sep last
1.8
Sep. Now (ρ)
1.74"
Mag pri
5.65
Mag sec
5.68
delta mag (ΔM)
0.03
Spectral class
A5V+A5V (white/white)
Pri motion ra
+014
Sec motion ra
+014
Pri motion dec
-105
Sec motion dec
-105
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
2.7
Precise sep
1.81
Constellation
Corona Austrina
SAO
228708
HIP
88726
Tycho2
7911-05035-1
HD
165189
HR
6749
CD
CD-4312272
CP
CP-43 8434
Distance
41.84
Distance ly
136.48
last precise pa
2.7
last precise sep
1.81
 
 
ORBITAL ELEMENTS
 
 
Period (P)450y Periastron (T)1854.7y Semi-major axis (a)2.04a
Eccentricity (e)0.65 Inclination (i)123.1° Longitude of periastron (ω)282.7°
Node (Ω)85.8° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation1999
label rho theta
2000 1.693 7.2
2001 1.695 6.7
2002 1.698 6.2
2003 1.700 5.7
2004 1.703 5.3
2005 1.705 4.8
2006 1.708 4.3
2007 1.710 3.8
2008 1.713 3.4
2009 1.715 2.9
2010 1.718 2.4
2011 1.721 2.0
2012 1.723 1.5
2013 1.726 1.0
2014 1.729 0.6
2015 1.731 0.1
2016 1.734 359.6
2017 1.737 359.2
2018 1.740 358.7
2019 1.743 358.3
2020 1.745 357.8
2021 1.748 357.4
2022 1.751 356.9
2023 1.754 356.5
2024 1.757 356.0
2025 1.760 355.6
2026 1.763 355.1
2027 1.766 354.7
2028 1.769 354.2
2029 1.772 353.8
2030 1.775 353.4

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

grafico orbita





wds18068-4325a.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
18068-4325 HJ 5014 2002 108 8 1.7 5.65 5.68 A5V A5V NOD 180649.91-432530.0
18068-4325 HJ 5014 2009 112 4 1.7 5.65 5.68 A5V A5V NOD 180649.91-432530.0
18068-4325 HJ 5014 2010 115 4 1.8 5.65 5.68 A5V A5V NO 180649.91-432530.0
18068-4325 HJ 5014 2014 117 2 1.8 5.65 5.68 A5V A5V NO 180649.91-432530.0
18068-4325 HJ 5014 2016 121 3 1.8 5.65 5.68 A5V+A5V NO 180649.91-432530.0

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