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20159+3859
BRT2230

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

20159+3859 BRT2230

20^h 15^m 56.04^s +38° 59' 08.4" P.A. 297.00 sep 6.0 mag 11.90,12.40

Coord 2000	20159+3859		Discov num	BRT2230		Comp			Coord arcsec 2000	20 15 56.04 +38 59 08.4
Date first	1928		Date last	2016		Obs	11
Pa first	304		Pa last	297		P.A. Now (θ)	297°
Sep first	4.8		Sep last	6.0		Sep. Now (ρ)	6"
Mag pri	11.90		Mag sec	12.40		delta mag (ΔM)	0.5		Spectral class
Pri motion ra	+010		Sec motion ra	-028
Pri motion dec	+002		Sec motion dec	+002
Notes

rPM=1.354

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa

296.6

Precise sep

5.951

Constellation

Cygnus

Gaia DR2

2062095471920428544

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20159+3859	BRT2230		1998	4	297	6.0	11.90	12.40		D	201556.04+385908.4
20159+3859	BRT2230		2002	5	297	5.9	11.90	12.40		D	201556.04+385908.4
20159+3859	BRT2230		2015	6	297	6.0	11.90	12.40			201556.04+385908.4

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