20101+0827 STF2635AC

Coord 2000	20101+0827		Discov num	STF2635		Comp	AC		Coord arcsec 2000	20 10 07.83 +08 26 37.8
Date first	1911		Date last	2015		Obs	9
Pa first	43		Pa last	38		P.A. Now (θ)	38°
Sep first	71.6		Sep last	88.9		Sep. Now (ρ)	88.9"
Mag pri	6.66		Mag sec	13.20		delta mag (ΔM)	6.54		Spectral class	F7V (yellow-white)
Pri motion ra	-061		Sec motion ra	-005
Pri motion dec	-173		Sec motion dec	+005
Notes	U (Proper motion indicates non-physical)

Visually invisible, K-band or other infrared star rPM=1.017 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			20101+0827	STF2635	AB	1825	2015	30	80	7.7	6.66	10.19	3.53
Show			20101+0827	STF2635	AC	1911	2015	9	38	88.9	6.66	13.20	6.54		<===
Show			20101+0827	GMC 9	AD	2000	2011	3	37	127.5	6.66	13.30	6.64

Quadruple system
4 visible stars in this system

Precise pa	37.9		Precise sep	88.878		Constellation	Aquila		HIP	99367
Tycho2	1072-02400-1		Gaia DR2	82238735488		HD	191533		BD	BD+08 4358
Distance	62.74		Distance ly	204.66

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20101+0827	STF2635	AC	2005	5	38	87.5	6.66	12.40	F7V	D	201007.83+082637.8
20101+0827	STF2635	AC	2011	6	38	87.5	6.66	13.20	F7V	D	201007.83+082637.8
20101+0827	STF2635	AC	2015	8	38	88.9	6.66	13.20	F7V	U	201007.83+082637.8

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