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19399-6641
DAW 224

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

19399-6641 DAW 224

19^h 39^m 52.13^s -66° 41' 07.5" P.A. 240.00 sep 19.9 mag 6.39,12.50 Sp A1V dist. 103.31 pc (337 l.y.)

Coord 2000	19399-6641		Discov num	DAW 224		Comp			Coord arcsec 2000	19 39 52.13 -66 41 07.5
Date first	1916		Date last	2015		Obs	8
Pa first	242		Pa last	240		P.A. Now (θ)	240°
Sep first	19.7		Sep last	19.9		Sep. Now (ρ)	19.9"
Mag pri	6.39		Mag sec	12.50		delta mag (ΔM)	6.11		Spectral class	A1V (white)
Pri motion ra	+035		Sec motion ra	+035
Pri motion dec	-040		Sec motion dec	-044
Notes

rPM=0.071 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	240		Precise sep	19.851		Constellation	Pavo		SAO	254622
HIP	96734		Tycho2	9096-00706-1		Gaia DR2	6427899049344974976		HD	184586
HR	7435		CP	CP-66 3445		Distance	103.31		Distance ly	337

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19399-6641	DAW 224		2000	2	240	19.9	6.39	12.50	A1V	D	193952.13-664107.5
19399-6641	DAW 224		2001	5	239	20.0	6.39	12.50	A1V	D	193952.13-664107.5
19399-6641	DAW 224		2010	6	240	19.7	6.39	12.50	A1V		193952.13-664107.5
19399-6641	DAW 224		2015	7	240	19.9	6.39	12.50	A1V		193952.13-664107.5

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