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
Constellation
Scutum
SAO
142618
HIP
92175
HD
173764
HR
7063
GC
25730
Bayer
Beta Scuti
Bayer name
Bet Sct
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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