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19410+3237
BLL 41 AD

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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

19410+3237 BLL 41 AD

19^h 40^m 57.00^s +32° 37' 05.7" P.A. 268.00 sep 93.4 mag 7.88,12.08 Sp N dist. 561.8 pc (1832.59 l.y.)

Coord 2000	19410+3237		Discov num	BLL 41		Comp	AD		Coord arcsec 2000	19 40 57.00 +32 37 05.7
Date first	1878		Date last	2015		Obs	5
Pa first	268		Pa last	267.7		P.A. Now (θ)	267.7°
Sep first	93.7		Sep last	93.35		Sep. Now (ρ)	93.35"
Mag pri	7.88		Mag sec	12.08		delta mag (ΔM)	4.2		Spectral class	N (deep red)
Pri motion ra	-005		Sec motion ra	-004
Pri motion dec	-002		Sec motion dec	-007
Notes	N (See Notes)

rPM=0.632

Nature of this double is uncertain.

19410+3237 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	TT Cyg	68688	19 40 57 +32 37 06	BLL 41 AB	2015	10	211	70.3	7.88	12.32	4.44
Show		68688	19 40 57 +32 37 06	BLL 41 AC	2015	5	49	83.4	7.88	12.44	4.56
Show		68688	19 40 57 +32 37 06	BLL 41 AD	2015	5	268	93.4	7.88	12.08	4.20		<===

Quadruple system
4 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Var name	TT Cyg		Constellation	Cygnus		SAO	68688		HIP	96836
Tycho2	2660-03137-1		Gaia DR2	2033371731400197888		HD	186047		BD	BD+32 3522
Distance	561.8		Distance ly	1832.59