14088+7733 BNU   9 (4 UMi)

 
 
14H 08M 51.01S +77 32' 50.8" P.A. 179 MAG 4.82, SP K3III DIST. 140.06 PC (456.88 L.Y.)
 
 
Coord 2000
14088+7733
Discov num
BNU   9
Comp
Coord arcsec 2000
14 08 51.01 +77 32 50.8
Date first
1984
Date last
1984
Obs
1
Pa first
179
Pa last
179
P.A. Now (θ)
179°
Sep first
0.0
Sep last
0.0
Sep. Now (ρ)
0"
Mag pri
4.82
Mag sec
delta mag (ΔM)
Spectral class
K3III (yellow-orange)
Pri motion ra
-032
Sec motion ra
Pri motion dec
+034
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name
4 UMi
Constellation
Ursa Minor
SAO
7958
HIP
69112
Tycho2
4561-02317-1
HD
124547
HR
5321
GC
19142
BD
BD+78 478
Flamsteed
4 Ursae Minoris
Flamsteed name
4 UMi
Distance
140.06
Distance ly
456.88
last precise pa
179
last precise sep
0.02
 
 
ORBITAL ELEMENTS
 
 
Period (P)605.8d Periastron (T)38901.7d (1965.385y) Semi-major axis (a)3.4m± 0.2
Eccentricity (e)0.14 Inclination (i)136°± 5.1 Longitude of periastron (ω)311.8°
Node (Ω)325.5°± 2.8 Note Grade9(1=Definitive, 9=Indet.)
Equinox2000 Last observation
label rho theta
2000-01-01 0.002 80.2
2001-01-01 0.003 192.0
2002-01-01 0.003 334.5
2003-01-01 0.004 143.5
2004-01-01 0.003 264.7
2005-01-01 0.002 72.0
2006-01-01 0.003 187.9
2007-01-01 0.003 329.6
2008-01-01 0.004 140.3
2009-01-01 0.003 258.8
2010-01-01 0.002 63.3
2011-01-01 0.003 183.9
2012-01-01 0.003 325.0
2013-01-01 0.004 136.9
2014-01-01 0.003 252.8
2015-01-01 0.002 54.3
2016-01-01 0.003 180.0
2017-01-01 0.003 320.4
2018-01-01 0.003 133.4
2019-01-01 0.003 246.7
2020-01-01 0.002 45.1
2021-01-01 0.003 176.4
2022-01-01 0.003 315.8
2023-01-01 0.003 129.7
2024-01-01 0.003 240.6
2025-01-01 0.002 36.0
2026-01-01 0.004 172.9
2027-01-01 0.003 311.3
2028-01-01 0.003 125.9
2029-01-01 0.003 234.5
2030-01-01 0.002 27.2

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