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20337+2451
POU4650

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

20337+2451 POU4650

20^h 33^m 43.78^s +24° 50' 08.8" P.A. 131.00 sep 17.1 mag 13.10,13.90

Coord 2000	20337+2451		Discov num	POU4650		Comp			Coord arcsec 2000	20 33 43.78 +24 50 08.8
Date first	1898		Date last	2015		Obs	10
Pa first	122		Pa last	131		P.A. Now (θ)	131°
Sep first	18.4		Sep last	17.1		Sep. Now (ρ)	17.1"
Mag pri	13.10		Mag sec	13.90		delta mag (ΔM)	0.8		Spectral class
Pri motion ra	+025		Sec motion ra	+019
Pri motion dec	+001		Sec motion dec	-028
Notes

rPM=0.875

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	130.9		Precise sep	17.093		Constellation	Vulpecula		Tycho2	2161-00949-1
Gaia DR2	1831517781802927360

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20337+2451	POU4650		1898	1	122	18.4	11.93	12.70			203344.40+245104.3
20337+2451	POU4650		2008	2	130	17.2	11.93	12.70			203344.40+245104.3
20337+2451	POU4650		2010	5	130	17.2	13.10	13.90			203343.78+245008.8
20337+2451	POU4650		2015	6	131	17.1	13.10	13.90			203343.78+245008.8

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