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Doubles in session

Current system

20223+4546
POP 144

Selections

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

20223+4546 POP 144

20^h 22^m 14.70^s +45° 46' 41.0" P.A. 121.00 sep 6.0 mag 13.00,13.50

Coord 2000	20223+4546		Discov num	POP 144		Comp			Coord arcsec 2000	20 22 14.70 +45 46 41.0
Date first	1979		Date last	2015		Obs	10
Pa first	120		Pa last	121		P.A. Now (θ)	121°
Sep first	5.5		Sep last	6.0		Sep. Now (ρ)	6"
Mag pri	13.00		Mag sec	13.50		delta mag (ΔM)	0.5		Spectral class
Pri motion ra	-013		Sec motion ra	+021
Pri motion dec	+002		Sec motion dec	-001
Notes

rPM=1.623

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	120.5		Precise sep	5.985		Constellation	Cygnus		SAO	49531
Gaia DR2	2082998905947311232		HD	194152		HR	7798		DM	BD+45 3152

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20223+4546	POP 144		1998	3	121	6.0	13.00	13.50		D	202214.70+454641.0
20223+4546	POP 144		2003	4	120	6.0	13.00	13.50		D	202214.70+454641.0
20223+4546	POP 144		2010	5	118	6.0	13.00	13.50			202214.70+454641.0
20223+4546	POP 144		2015	6	120	6.0	13.00	13.50			202214.70+454641.0

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