17376-1524 RST5090AB (Xi Ser)

Coord 2000	17376-1524		Discov num	RST5090		Comp	AB		Coord arcsec 2000	17 37 35.23 -15 23 54.3
Date first	1943		Date last	2015		Obs	7
Pa first	81		Pa last	78		P.A. Now (θ)	78°
Sep first	24.5		Sep last	24.5		Sep. Now (ρ)	24.5"
Mag pri	3.54		Mag sec	13.00		delta mag (ΔM)	9.46		Spectral class	F0IV (yellow-white)
Pri motion ra	-042		Sec motion ra
Pri motion dec	-058		Sec motion dec
Notes	N (See Notes)

Nature of this double is uncertain.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		160700	17 37 35 -15 23 54	ISO 6 Aa,Ab	1987	1	132	0.3	3.54
Show	Xi Ser	160700	17 37 35 -15 23 54	RST 5090 AB	2015	7	78	24.5	3.54	13.00	9.46		<===
Show		160700	17 37 35 -15 23 54	DRS 61 AC	2000	3	58	999.9	3.55	13.82	10.27

Quadruple system
3 visible stars in this system

Precise pa	78.4		Precise sep	24.505		Name	Xi Ser		Constellation	Serpens
SAO	160700		HIP	86263		Tycho2	6248-01369-1		Gaia DR2	4125171197089493888
HD	159876		HR	6561		GC	23881		BD	BD-15 4621
Bayer	Xi Serpentis		Bayer name	Xi Ser		Flamsteed	55 Serpentis		Flamsteed name	55 Ser
Distance	32.28		Distance ly	105.3

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
17376-1524	RST5090	AB	1998	4	79	24.4	3.54	13.00	F0IV	D	173735.23-152354.3
17376-1524	RST5090	AB	2012	5	78	24.9	3.54	13.00	F0IV	N	173735.23-152354.3
17376-1524	RST5090	AB	2015	6	78	24.5	3.54	13.00	F0IV	N	173735.23-152354.3

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