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20268+2804
A 393

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

20268+2804 A 393

20^h 26^m 46.32^s +28° 04' 04.4" P.A. 217.00 sep 0.5 mag 9.21,9.95 Sp A0 dist. 442.48 pc (1443.37 l.y.)

Coord 2000	20268+2804		Discov num	A 393		Comp			Coord arcsec 2000	20 26 46.32 +28 04 04.4
Date first	1902		Date last	2016		Obs	21
Pa first	210		Pa last	217		P.A. Now (θ)	217°
Sep first	0.4		Sep last	0.5		Sep. Now (ρ)	0.5"
Mag pri	9.21		Mag sec	9.95		delta mag (ΔM)	0.74		Spectral class	A0 (white)
Pri motion ra	+002		Sec motion ra	+002
Pri motion dec	+007		Sec motion dec	+007
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	216.5		Precise sep	0.53		Constellation	Vulpecula		SAO	88684
HIP	100839		Tycho2	2164-01424-1		Gaia DR2	1860047638940705280		HD	194805
BD	BD+27 3733		Distance	442.48		Distance ly	1443.37

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20268+2804	A 393		1991	18	217	0.4	9.21	9.95	A0	D	202646.32+280404.4
20268+2804	A 393		2007	19	219	0.5	9.21	9.95	A0	D	202646.32+280404.4
20268+2804	A 393		2016	20	217	0.5	9.21	9.95	A0		202646.32+280404.4

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