18472-0445 NOI   5 (Bet Sct)

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.

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

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			Grade	9	(1=Definitive, 9=Indet.)
Equinox	2000		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.
		Measures: green=micrometric, blue=interferometric, purple=photographic

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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