08592+4803 HU  628BC

 
 
08H 59M 12.53S +48 02' 28.7" P.A. 209.9 SEP 0.91 MAG 9.90,10.10 SP M1 DIST. 14.51 PC (47.33 L.Y.)
 
 
Coord 2000
08592+4803
Discov num
HU  628
Comp
BC
Coord arcsec 2000
08 59 12.53 +48 02 28.7
Date first
1903
Date last
2012
Obs
62
Pa first
203
Pa last
40
P.A. Now (θ)
209.9°
Sep first
0.9
Sep last
0.7
Sep. Now (ρ)
0.91"
Mag pri
9.90
Mag sec
10.10
delta mag (ΔM)
0.2
Spectral class
M1 (red)
Pri motion ra
-441
Sec motion ra
Pri motion dec
-215
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
08592+4803 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show Iot UMa 42630 08592+4803 HJ 2477 A,BC 1831 2012 82 102 2.0 3.13 9.20 6.07 Y
Show 42630 08592+4803 HU 628 BC 1903 2012 62 210 0.9 9.90 10.10 0.20 Y <===
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Ursa Major
SAO
42630
HIP
44127
HD
76644
HR
3569
GC
12407
ADS
7114
GL
Gl 331A
BD
BD+48 1707
Bayer
Iota Ursae Majoris
Bayer name
Iot UMa
Flamsteed
9 Ursae Majoris
Flamsteed name
9 UMa
Distance
14.51
Distance ly
47.33
last precise pa
39.6
last precise sep
0.716
 
 
ORBITAL ELEMENTS
 
 
Period (P)39.4y± 0.1 Periastron (T)1999.1y± 0.7 Semi-major axis (a)0.7a± 0.01
Eccentricity (e)0.35± 0.02 Inclination (i)111.6°± 1.1 Longitude of periastron (ω)354.2°± 4.6
Node (Ω)24.5°± 1.3 Note Grade3(1=Definitive, 9=Indet.)
Equinox Last observation2011
label rho theta
2000 0.452 19.9
2001 0.420 11.9
2002 0.366 1.9
2003 0.303 348.0
2004 0.250 327.4
2005 0.232 300.0
2006 0.261 273.8
2007 0.323 255.2
2008 0.399 243.2
2009 0.479 235.2
2010 0.557 229.4
2011 0.630 225.0
2012 0.697 221.5
2013 0.757 218.6
2014 0.808 216.0
2015 0.852 213.8
2016 0.888 211.8
2017 0.914 209.9
2018 0.933 208.0
2019 0.942 206.3
2020 0.943 204.6
2021 0.934 202.8
2022 0.917 201.0
2023 0.890 199.1
2024 0.855 197.1
2025 0.810 194.9
2026 0.756 192.3
2027 0.694 189.4
2028 0.623 185.8
2029 0.544 181.3
2030 0.460 175.1

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

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic