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20181+3202
SEI1068

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

20181+3202 SEI1068

20^h 18^m 02.27^s +32° 01' 56.2" P.A. 12.00 sep 17.4 mag 10.69,12.20 Sp G0

Coord 2000	20181+3202		Discov num	SEI1068		Comp			Coord arcsec 2000	20 18 02.27 +32 01 56.2
Date first	1893		Date last	2015		Obs	13
Pa first	7		Pa last	12		P.A. Now (θ)	12°
Sep first	16.8		Sep last	17.4		Sep. Now (ρ)	17.4"
Mag pri	10.69		Mag sec	12.20		delta mag (ΔM)	1.51		Spectral class	G0 (yellow)
Pri motion ra	-012		Sec motion ra	+007
Pri motion dec	-005		Sec motion dec	-002
Notes

rPM=1.48

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	12.4		Precise sep	17.415		Constellation	Cygnus		Tycho2	2676-01418-1
Gaia DR2	2053921706779825536		HD	332139

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20181+3202	SEI1068		1999	6	12	17.3	10.69	12.20		D	201802.27+320156.2
20181+3202	SEI1068		2002	7	12	17.3	10.69	12.20		D	201802.27+320156.2
20181+3202	SEI1068		2010	8	12	17.3	10.69	12.20	G0		201802.27+320156.2
20181+3202	SEI1068		2015	9	12	17.4	10.69	12.20	G0		201802.27+320156.2

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