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20073+1605
STF2629

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

20073+1605 STF2629

20^h 07^m 20.78^s +16° 04' 34.7" P.A. 188.00 sep 9.0 mag 7.63,10.61 Sp B9IV dist. 1000 pc (3262 l.y.)

Coord 2000	20073+1605		Discov num	STF2629		Comp			Coord arcsec 2000	20 07 20.78 +16 04 34.7
Date first	1872		Date last	2015		Obs	21
Pa first	190		Pa last	188		P.A. Now (θ)	188°
Sep first	10.0		Sep last	9.0		Sep. Now (ρ)	9"
Mag pri	7.63		Mag sec	10.61		delta mag (ΔM)	2.98		Spectral class	B9IV (blue-white)
Pri motion ra	+005		Sec motion ra	+005
Pri motion dec	-007		Sec motion dec	-010
Notes	N (See Notes)

rPM=0.268 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	187.7		Precise sep	8.956		Constellation	Aquila		SAO	105714
HIP	99117		Tycho2	1617-01693-1		Gaia DR2	1807894229029026816		HD	191048
BD	BD+15 4047		Distance	1000		Distance ly	3262

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20073+1605	STF2629		1998	16	187	8.9	7.63	10.61	B9IV	D	200720.78+160434.7
20073+1605	STF2629		2001	17	187	9.2	7.63	10.61	B9IV	N D	200720.78+160434.7
20073+1605	STF2629		2010	18	187	9.0	7.63	10.61	B9IV	N	200720.78+160434.7
20073+1605	STF2629		2015	18	188	9.0	7.63	10.61	B9IV	N	200720.78+160434.7

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