19314+3643 BU 438 AE

Coord 2000	19314+3643		Discov num	BU  438		Comp	AE		Coord arcsec 2000	19 31 26.20 +36 42 37.8
Date first	1878		Date last	2015		Obs	13
Pa first	239		Pa last	240.8		P.A. Now (θ)	240.8°
Sep first	21.1		Sep last	20.993		Sep. Now (ρ)	20.993"
Mag pri	8.99		Mag sec	13.50		delta mag (ΔM)	4.51		Spectral class	F2 (yellow-white)
Pri motion ra	+001		Sec motion ra
Pri motion dec	-016		Sec motion dec
Notes

Nature of this double is uncertain.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			19 31 26 +36 42 38	BU 438 AB	2015	13	25	5.1	8.99	13.40	4.41
Show		68434	19 31 26 +36 42 38	STF 2538 AC	2018	48	247	52.2	8.99	8.92	0.07
Show			19 31 26 +36 42 38	STF 2538 AD	2018	30	250	46.7	8.99	9.24	0.25
Show			19 31 26 +36 42 38	BU 438 AE	2015	13	241	21.0	8.99	13.50	4.51		<===
Show		68434	19 31 26 +36 42 42	STF 2538 BC	2015	6	244	56.2	13.40	8.92	4.48
Show		68434	19 31 22 +36 42 18	STF 2538 CD	2020	62	50	6.0	8.92	9.24	0.32
Show		68434	19 31 22 +36 42 18	STF 2538 CE	2015	7	72	31.5	8.92	13.50	4.58

Quintuple system
5 estimated visually detectable stars in this system

Constellation

Cygnus

Tycho2

2667-00471-1

Gaia DR2

2051459449255629312