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20302+3823
SEI1141

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

20302+3823 SEI1141

20^h 30^m 13.85^s +38° 22' 33.4" P.A. 175.00 sep 22.5 mag 12.51,12.56

Coord 2000	20302+3823		Discov num	SEI1141		Comp			Coord arcsec 2000	20 30 13.85 +38 22 33.4
Date first	1895		Date last	2015		Obs	12
Pa first	175		Pa last	175		P.A. Now (θ)	175°
Sep first	21.9		Sep last	22.5		Sep. Now (ρ)	22.5"
Mag pri	12.51		Mag sec	12.56		delta mag (ΔM)	0.05		Spectral class
Pri motion ra	+009		Sec motion ra	+007
Pri motion dec	+008		Sec motion dec	+006
Notes

rPM=0.235 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	174.6		Precise sep	22.491		Constellation	Cygnus		Tycho2	3153-00861-1
Gaia DR2	2064092361122428544

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20302+3823	SEI1141		1998	5	175	22.4	12.51	12.56		D	203013.85+382233.4
20302+3823	SEI1141		2002	6	175	22.4	12.51	12.56		D	203013.85+382233.4
20302+3823	SEI1141		2010	7	175	22.4	12.51	12.56			203013.85+382233.4
20302+3823	SEI1141		2015	8	175	22.5	12.51	12.56			203013.85+382233.4

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