14044+6423 NOI   4 (Alp Dra)

 
 
14h 04m 23.35s +64 22' 33.1" P.A. 248 mag 3.65, Sp A0III dist. 92.94 pc (303.17 l.y.)
 
 
Coord 2000
14044+6423
Discov num
NOI   4
Comp
Coord arcsec 2000
14 04 23.35 +64 22 33.1
Date first
2013
Date last
2013
Obs
4
Pa first
256
Pa last
248
P.A. Now (θ)
248°
Sep first
0.0
Sep last
0.0
Sep. Now (ρ)
0"
Mag pri
3.65
Mag sec
delta mag (ΔM)
Spectral class
A0III (white)
Pri motion ra
-056
Sec motion ra
Pri motion dec
+017
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
247.5
Precise sep
0.005
Name
Alp Dra
Constellation
Draco
SAO
16273
HIP
68756
HD
123299
HR
5291
GC
19019
BD
BD+65 978
Bayer
Alpha Draconis
Bayer name
Alp Dra
Flamsteed
11 Draconis
Flamsteed name
11 Dra
Distance
92.94
Distance ly
303.17
last precise pa
247.5
last precise sep
0.005
 
 
ORBITAL ELEMENTS
 
 
Period (P)51.4167d Periastron (T)45117.375d (1982.403y) Semi-major axis (a)1.46m± 0.68
Eccentricity (e)0.4 Inclination (i)131.78°± 25.4 Longitude of periastron (ω)23.2°
Node (Ω)241.14°± 18.91 Note Grade9(1=Definitive, 9=Indet.)
Equinox Last observation1991
label rho theta
2000-01-01 0.001 224.2
2001-01-01 0.001 132.5
2002-01-01 0.001 87.2
2003-01-01 0.002 68.4
2004-01-01 0.002 55.2
2005-01-01 0.002 42.8
2006-01-01 0.002 27.9
2007-01-01 0.001 5.3
2008-01-01 0.001 323.2
2009-01-01 0.001 263.9
2010-01-01 0.001 196.2
2011-01-01 0.001 110.5
2012-01-01 0.002 79.4
2013-01-01 0.002 63.5
2014-01-01 0.002 51.0
2015-01-01 0.002 38.1
2016-01-01 0.002 21.4
2017-01-01 0.001 353.7
2018-01-01 0.001 303.1
2019-01-01 0.001 244.0
2020-01-01 0.001 161.2
2021-01-01 0.001 96.2
2022-01-01 0.002 73.2
2023-01-01 0.002 59.1
2024-01-01 0.002 46.8
2025-01-01 0.002 33.0
2026-01-01 0.001 13.7
2027-01-01 0.001 339.2
2028-01-01 0.001 282.2
2029-01-01 0.001 221.7
2030-01-01 0.001 129.9

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

grafico orbita





wds14044%2B6423r.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
14044+6423 NOI 4 2013 4 248 0.0 3.65   A0III NO 140423.35+642233.1

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