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20252+3522
SEI1120

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

20252+3522 SEI1120

20^h 25^m 14.31^s +35° 21' 32.2" P.A. 217.00 sep 27.3 mag 10.34,10.55

Coord 2000	20252+3522		Discov num	SEI1120		Comp			Coord arcsec 2000	20 25 14.31 +35 21 32.2
Date first	1896		Date last	2015		Obs	17
Pa first	214		Pa last	217		P.A. Now (θ)	217°
Sep first	24.3		Sep last	27.3		Sep. Now (ρ)	27.3"
Mag pri	10.34		Mag sec	10.55		delta mag (ΔM)	0.21		Spectral class
Pri motion ra	+023		Sec motion ra	+001
Pri motion dec	-001		Sec motion dec	-011
Notes

rPM=1.05

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	216.6		Precise sep	27.328		Constellation	Cygnus		Tycho2	2693-00924-1
Gaia DR2	2056444845440157312

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20252+3522	SEI1120		2005	9	217	27.2	10.34	10.55		D	202514.31+352132.2
20252+3522	SEI1120		2009	10	217	27.3	10.34	10.55		D	202514.31+352132.2
20252+3522	SEI1120		2010	12	217	27.2	10.34	10.55			202514.31+352132.2
20252+3522	SEI1120		2015	13	217	27.3	10.34	10.55			202514.31+352132.2

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