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19438+3819
STT 384 AC

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

19438+3819 STT 384 AC

19^h 43^m 47.09^s +38° 19' 20.5" P.A. 297.00 sep 59.4 mag 7.59,9.76 Sp B5V dist. 675.68 pc (2204.07 l.y.)

Coord 2000	19438+3819		Discov num	STT 384		Comp	AC		Coord arcsec 2000	19 43 47.09 +38 19 20.5
Date first	1856		Date last	2015		Obs	18
Pa first	298		Pa last	297.4		P.A. Now (θ)	297.4°
Sep first	58.5		Sep last	59.42		Sep. Now (ρ)	59.42"
Mag pri	7.59		Mag sec	9.76		delta mag (ΔM)	2.17		Spectral class	B5V (blue-white)
Pri motion ra	+001		Sec motion ra	+000
Pri motion dec	-001		Sec motion dec	-002
Notes

rPM=0.707

Nature of this double is uncertain.

19438+3819 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 186605	68767	19 43 47 +38 19 20	STT 384 AB	2018	88	196	1.0	7.59	8.23	0.64
Show		68767	19 43 47 +38 19 20	STT 384 AC	2015	18	297	59.4	7.59	9.76	2.17		<===
Show		68767	19 43 47 +38 19 20	STT 384 AD	2015	5	294	116.0	7.59	10.82	3.23

Quadruple system
4 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation	Cygnus		SAO	68767		HIP	97083		Tycho2	3136-00794-1
Gaia DR2	2073084682607118080		HD	186605		BD	BD+37 3582		Distance	675.68
Distance ly	2204.07