18472-0445 NOI   5 (Bet Sct)

 
 
18h 47m 10.47s -04 44' 52.3" P.A. 162 mag 4.22, Sp G4IIa+B9V dist. 280.9 pc (916.3 l.y.)
 
 
Coord 2000
18472-0445
Discov num
NOI   5
Comp
Coord arcsec 2000
18 47 10.47 -04 44 52.3
Date first
2004
Date last
2004
Obs
8
Pa first
162
Pa last
162
P.A. Now (θ)
162°
Sep first
0.0
Sep last
0.0
Sep. Now (ρ)
0"
Mag pri
4.22
Mag sec
delta mag (ΔM)
Spectral class
G4IIa+B9V (yellow/blue-white)
Pri motion ra
-008
Sec motion ra
Pri motion dec
-016
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
162.3
Precise sep
0.017
Name
Bet Sct
Cdsa2 id
NOI 5
Constellation
Scutum
SAO
142618
HIP
92175
HD
173764
HR
7063
GC
25730
Bayer
Beta Scuti
Bayer name
Bet Sct
Ra deg
18.78624166666667
De deg
-4.747861111111111
Distance
280.9
Distance ly
916.3
last precise pa
162.3
last precise sep
0.017
 
 
ORBITAL ELEMENTS
 
 
Period (P)834d (2.28y) Periastron (T)22480.9d (1920.426y) Semi-major axis (a)2.8m± 0.2
Eccentricity (e)0.35 Inclination (i)105.9°± 4.2 Longitude of periastron (ω)33.9°
Node (Ω)288.1°± 2.8 Note Grade9(1=Definitive, 9=Indet.)
Equinox2000 Last observation
label rho theta
2000-01-01 0.001 314.0
2001-01-01 0.003 110.7
2002-01-01 0.001 51.0
2003-01-01 0.002 124.6
2004-01-01 0.002 88.2
2005-01-01 0.001 259.0
2006-01-01 0.003 99.3
2007-01-01 0.002 296.3
2008-01-01 0.004 106.6
2009-01-01 0.001 350.0
2010-01-01 0.003 115.4
2011-01-01 0.002 76.1
2012-01-01 0.001 151.9
2013-01-01 0.003 94.4
2014-01-01 0.002 283.0
2015-01-01 0.004 102.9
2016-01-01 0.001 311.4
2017-01-01 0.003 110.2
2018-01-01 0.001 46.0
2019-01-01 0.002 123.1
2020-01-01 0.002 87.3
2021-01-01 0.001 252.6
2022-01-01 0.003 98.8
2023-01-01 0.002 294.9
2024-01-01 0.004 106.2
2025-01-01 0.001 343.8
2026-01-01 0.003 114.7
2027-01-01 0.002 74.1
2028-01-01 0.001 145.6
2029-01-01 0.003 93.8
2030-01-01 0.002 281.3

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

grafico orbita





wds18472-0445f.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
18472-0445 NOI 5 2004 8 162 0.0 4.22   G4IIa+B9V NO 184710.47-044452.3

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