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19453+3656
POP 121

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

19453+3656 POP 121

19^h 45^m 22.52^s +36° 55' 49.2" P.A. 323.00 sep 1.7 mag 10.42,10.90 Sp A

Coord 2000	19453+3656		Discov num	POP 121		Comp			Coord arcsec 2000	19 45 22.52 +36 55 49.2
Date first	1976		Date last	2018		Obs	11
Pa first	324		Pa last	323		P.A. Now (θ)	323°
Sep first	1.4		Sep last	1.7		Sep. Now (ρ)	1.7"
Mag pri	10.42		Mag sec	10.90		delta mag (ΔM)	0.48		Spectral class	A (white)
Pri motion ra	+003		Sec motion ra	+003
Pri motion dec	-009		Sec motion dec	-009
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	323.4		Precise sep	1.675		Constellation	Cygnus		Tycho2	2668-00902-1
Gaia DR2	2048752730820459392		HD	225662

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19453+3656	POP 121		1995	7	325	1.5	10.42	10.90			194522.52+365549.2
19453+3656	POP 121		2013	8	325	1.6	10.42	10.90	A		194522.52+365549.2
19453+3656	POP 121		2015	9	324	1.6	10.42	10.90	A		194522.52+365549.2
19453+3656	POP 121		2018	10	323	1.7	10.42	10.90	A		194522.52+365549.2

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