19407-1618 HJ  599AB (54 Sgr)

Coord 2000	19407-1618		Discov num	HJ  599		Comp	AB		Coord arcsec 2000	19 40 43.34 -16 17 35.3
Date first	1828		Date last	2009		Obs	11
Pa first	273		Pa last	279		P.A. Now (θ)	279°
Sep first	15.0		Sep last	45.2		Sep. Now (ρ)	45.2"
Mag pri	5.42		Mag sec	12.65		delta mag (ΔM)	7.23		Spectral class	K2III+F8V (yellow-orange/yellow-white)
Pri motion ra	+068		Sec motion ra	+007
Pri motion dec	-051		Sec motion dec	-001
Notes	N (See Notes)

Visually invisible, K-band or other infrared star rPM=0.928 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	54 Sgr	162883	19407-1618	HJ 599	AB	1828	2009	11	279	45.2	5.42	12.65	7.23		<===
Show		162883	19407-1618	HJ 599	AC	1827	2019	46	41	45.5	5.42	7.65	2.23
Show		162883	19407-1618	ANT 6	AD	1998	2009	5	252	56.8	5.42	13.90	8.48

Quadruple system
4 visible stars in this system

Precise pa	279.2		Precise sep	45.2		Name	54 Sgr		Other name	e1 Sgr
Constellation	Sagittarius		SAO	162883		HIP	96808		Tycho2	6299-02609-1
Gaia DR2	69973511040		HD	185644		HR	7476		GC	27214
BD	BD-16 5399		Flamsteed	54 Sagittarii		Flamsteed name	54 Sgr		Distance	73.75
Distance ly	240.57

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19407-1618	HJ 599	AB	1905	5	273	38.1	5.31	12.64	K2III+F8V	N	194043.34-161735.3
19407-1618	HJ 599	AB	2009	7	279	45.2	5.42	12.60	K2III F8V	N	194043.34-161735.3

If you need more information about this double, apply for a data request form to the WDS.