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20101+3826
ALI 921

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

20101+3826 ALI 921

20^h 10^m 05.83^s +38° 26' 03.7" P.A. 200.00 sep 6.9 mag 11.06,12.40 Sp A5

Coord 2000	20101+3826		Discov num	ALI 921		Comp			Coord arcsec 2000	20 10 05.83 +38 26 03.7
Date first	1928		Date last	2016		Obs	10
Pa first	201		Pa last	200		P.A. Now (θ)	200°
Sep first	7.2		Sep last	6.9		Sep. Now (ρ)	6.9"
Mag pri	11.06		Mag sec	12.40		delta mag (ΔM)	1.34		Spectral class	A5 (white)
Pri motion ra	+007		Sec motion ra	+001
Pri motion dec	+002		Sec motion dec	+000
Notes

rPM=0.869

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	199.6		Precise sep	6.88		Constellation	Cygnus		Tycho2	3151-02137-1
Gaia DR2	2061645432384117632		HD	228066

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20101+3826	ALI 921		1998	2	200	6.9	11.06	12.40		D	201005.83+382603.7
20101+3826	ALI 921		2002	3	200	6.9	11.06	12.40		D	201005.83+382603.7
20101+3826	ALI 921		2010	4	201	6.9	11.06	12.40	A5		201005.83+382603.7
20101+3826	ALI 921		2015	5	200	6.9	11.06	12.40	A5		201005.83+382603.7

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