04089+4614 A   998

 
 
04h 08m 54.55s +46 13' 40.2" P.A. 17.7 sep 0.12 mag 7.87,8.50 Sp A0V dist. 145.77 pc (475.5 l.y.)
 
 
Coord 2000
04089+4614
Discov num
A   998
Comp
Coord arcsec 2000
04 08 54.55 +46 13 40.2
Date first
1905
Date last
2008
Obs
34
Pa first
333
Pa last
185
P.A. Now (θ)
17.7°
Sep first
0.3
Sep last
0.2
Sep. Now (ρ)
0.12"
Mag pri
7.87
Mag sec
8.50
delta mag (ΔM)
0.63
Spectral class
A0V (white)
Pri motion ra
+023
Sec motion ra
Pri motion dec
-032
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
184.7
Precise sep
0.165
Cdsa2 id
A 998
Constellation
Perseus
SAO
39339
HIP
19366
Tycho2
3328-02245-1
HD
25987
ADS
3007
BD
BD+45 881
Ra deg
4.1484861111111115
De deg
46.227833333333336
Distance
145.77
Distance ly
475.5
last precise pa
184.7
last precise sep
0.165
 
 
ORBITAL ELEMENTS
 
 
Period (P)158.245y± 7.794 Periastron (T)2010.16y± 2.03 Semi-major axis (a)0.2814a± 0.0103
Eccentricity (e)0.6922± 0.0522 Inclination (i)123.76°± 2.18 Longitude of periastron (ω)46.91°± 5.84
Node (Ω)170.76°± 3.17 Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation1989
label rho theta
2000 0.125 209.8
2001 0.124 205.2
2002 0.122 200.4
2003 0.119 195.4
2004 0.116 190.2
2005 0.112 184.7
2006 0.107 178.7
2007 0.101 172.1
2008 0.092 164.3
2009 0.082 154.9
2010 0.071 142.4
2011 0.060 125.3
2012 0.054 102.4
2013 0.055 77.2
2014 0.063 56.0
2015 0.076 40.9
2016 0.091 30.6
2017 0.107 23.2
2018 0.122 17.7
2019 0.137 13.4
2020 0.152 9.9
2021 0.166 7.0
2022 0.179 4.6
2023 0.191 2.5
2024 0.203 0.6
2025 0.214 359.0
2026 0.225 357.5
2027 0.235 356.1
2028 0.245 354.8
2029 0.254 353.7
2030 0.263 352.6

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

grafico orbita





wds04089%2B4614a.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
04089+4614 A 998 1991 32 61 0.1 7.87 8.50 A0V O 040854.55+461340.2
04089+4614 A 998 2007 33 194 0.2 7.87 8.50 A0V O 040854.55+461340.2
04089+4614 A 998 2008 34 185 0.2 7.87 8.50 A0V O 040854.55+461340.2

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