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20024+3320
SEI 803

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

20024+3320 SEI 803

20^h 02^m 21.69^s +33° 19' 42.7" P.A. 272.00 sep 22.6 mag 10.35,12.79 Sp A0

Coord 2000	20024+3320		Discov num	SEI 803		Comp			Coord arcsec 2000	20 02 21.69 +33 19 42.7
Date first	1894		Date last	2015		Obs	12
Pa first	275		Pa last	272		P.A. Now (θ)	272°
Sep first	22.7		Sep last	22.6		Sep. Now (ρ)	22.6"
Mag pri	10.35		Mag sec	12.79		delta mag (ΔM)	2.44		Spectral class	A0 (white)
Pri motion ra	-002		Sec motion ra	-001
Pri motion dec	-003		Sec motion dec	-002
Notes

rPM=0.392

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	272		Precise sep	22.623		Constellation	Cygnus		Tycho2	2674-02502-1
Gaia DR2	2058219044895747072		HD	227232

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20024+3320	SEI 803		1998	4	272	22.7	10.35	13.40		D	200221.69+331942.7
20024+3320	SEI 803		2002	5	272	22.6	10.35	13.40		D	200221.69+331942.7
20024+3320	SEI 803		2011	6	272	22.6	10.35	13.40		D	200221.69+331942.7
20024+3320	SEI 803		2015	8	272	22.6	10.35	12.79	A0		200221.69+331942.7

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