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Doubles in session

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20337+3835
A 1431

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

20337+3835 A 1431

20^h 33^m 42.82^s +38° 34' 59.4" P.A. 29.00 sep 0.9 mag 8.36,9.38 Sp A0 dist. 248.76 pc (811.46 l.y.)

Coord 2000	20337+3835		Discov num	A 1431		Comp			Coord arcsec 2000	20 33 42.82 +38 34 59.4
Date first	1906		Date last	2016		Obs	29
Pa first	36		Pa last	29		P.A. Now (θ)	29°
Sep first	0.8		Sep last	0.9		Sep. Now (ρ)	0.9"
Mag pri	8.36		Mag sec	9.38		delta mag (ΔM)	1.02		Spectral class	A0 (white)
Pri motion ra	+007		Sec motion ra	+007
Pri motion dec	+000		Sec motion dec	+000
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	29.1		Precise sep	0.889		Constellation	Cygnus		SAO	70198
HIP	101456		Tycho2	3153-01232-1		Gaia DR2	2063995805963788032		HD	196092
BD	BD+38 4148		Distance	248.76		Distance ly	811.46

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20337+3835	A 1431		2007	20	30	0.9	8.36	9.38	A0	D	203342.82+383459.4
20337+3835	A 1431		2010	26	30	0.9	8.36	9.38	A0	D	203342.82+383459.4
20337+3835	A 1431		2012	27	25	0.9	8.36	9.38	A0		203342.82+383459.4
20337+3835	A 1431		2013	28	30	1.0	8.36	9.38	A0		203342.82+383459.4

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