09186+2049 HO   43

 
 
09h 18m 36.25s +20 48' 49.4" P.A. 96.3 sep 0.62 mag 9.31,9.46 Sp F5 dist. 108.11 pc (352.65 l.y.)
 
 
Coord 2000
09186+2049
Discov num
HO   43
Comp
Coord arcsec 2000
09 18 36.25 +20 48 49.4
Date first
1885
Date last
2008
Obs
68
Pa first
314
Pa last
102
P.A. Now (θ)
96.3°
Sep first
0.4
Sep last
0.6
Sep. Now (ρ)
0.62"
Mag pri
9.31
Mag sec
9.46
delta mag (ΔM)
0.15
Spectral class
F5 (yellow-white)
Pri motion ra
-004
Sec motion ra
-004
Pri motion dec
-050
Sec motion dec
-050
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
102.3
Precise sep
0.554
Constellation
Cancer
SAO
80753
HIP
45671
Tycho2
1408-00831-1
HD
80146
ADS
7294
BD
BD+21 2009
Distance
108.11
Distance ly
352.65
last precise pa
102.3
last precise sep
0.554
 
 
ORBITAL ELEMENTS
 
 
Period (P)358.6y± 9.4 Periastron (T)1941.2y± 2.5 Semi-major axis (a)0.61a± 0.013
Eccentricity (e)0.4 Inclination (i)131.6°± 2.3 Longitude of periastron (ω)214.9°± 6.7
Node (Ω)80°± 3.6 Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation
label rho theta
2000 0.506 108.6
2001 0.513 107.7
2002 0.520 106.8
2003 0.527 106.0
2004 0.534 105.2
2005 0.541 104.4
2006 0.548 103.6
2007 0.555 102.9
2008 0.561 102.2
2009 0.568 101.5
2010 0.574 100.8
2011 0.581 100.1
2012 0.587 99.4
2013 0.593 98.8
2014 0.599 98.1
2015 0.605 97.5
2016 0.611 96.9
2017 0.617 96.3
2018 0.623 95.7
2019 0.628 95.1
2020 0.634 94.5
2021 0.640 94.0
2022 0.645 93.4
2023 0.650 92.9
2024 0.655 92.3
2025 0.660 91.8
2026 0.665 91.3
2027 0.670 90.8
2028 0.675 90.3
2029 0.680 89.8
2030 0.685 89.3

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

grafico orbita





wds09186%2B2049b.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
09186+2049 HO 43 2004 67 105 0.5 9.31 9.46 F5 NOD 091836.25+204849.4
09186+2049 HO 43 2008 68 102 0.6 9.31 9.46 F5 NOD 091836.25+204849.4

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