20096+1648 STF2634AB

Coord 2000	20096+1648		Discov num	STF2634		Comp	AB		Coord arcsec 2000	20 09 34.30 +16 48 19.2
Date first	1782		Date last	2017		Obs	63
Pa first	17		Pa last	14		P.A. Now (θ)	14°
Sep first	4.5		Sep last	4.2		Sep. Now (ρ)	4.2"
Mag pri	7.77		Mag sec	9.92		delta mag (ΔM)	2.15		Spectral class	K0 (yellow-orange)
Pri motion ra	+004		Sec motion ra	+004
Pri motion dec	+176		Sec motion dec	+176
Notes	N V (See Notes, Proper motion indicates physical)

Visually invisible, K-band or other infrared star This double is physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		105765	20096+1648	STF2634	AB	1782	2017	63	14	4.2	7.77	9.92	2.15		<===
Show		105765	20096+1648	STF2634	AC	1911	2015	7	301	65.0	7.77	13.45	5.68

Triple system
3 visible stars in this system

Precise pa	14.3		Precise sep	4.159		Constellation	Sagitta		SAO	105765
HIP	99316		Tycho2	1618-00674-1		Gaia DR2	06859123584		HD	191499
BD	BD+16 4166		Distance	23.66		Distance ly	77.18

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20096+1648	STF2634	AB	2003	52	14	4.0	7.77	9.92	K0	N D	200934.30+164819.2
20096+1648	STF2634	AB	2008	53	14	4.1	7.77	9.92	K0	N DV	200934.30+164819.2
20096+1648	STF2634	AB	2011	55	14	4.1	7.77	9.92	K0	NVD	200934.30+164819.2
20096+1648	STF2634	AB	2016	59	14	4.1	7.77	9.92	K0	NV	200934.30+164819.2
20096+1648	STF2634	AB	2017	63	14	4.2	7.77	9.92	K0	NV	200934.30+164819.2

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