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20135+2431
POU4285

Selections

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

20135+2431 POU4285

20^h 13^m 30.53^s +24° 30' 50.4" P.A. 330.00 sep 10.5 mag 12.60,13.40

Coord 2000	20135+2431		Discov num	POU4285		Comp			Coord arcsec 2000	20 13 30.53 +24 30 50.4
Date first	1899		Date last	2015		Obs	9
Pa first	333		Pa last	330		P.A. Now (θ)	330°
Sep first	10.8		Sep last	10.5		Sep. Now (ρ)	10.5"
Mag pri	12.60		Mag sec	13.40		delta mag (ΔM)	0.8		Spectral class
Pri motion ra	-001		Sec motion ra	-079
Pri motion dec	-008		Sec motion dec	+092
Notes

rPM=1.046

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	329.6		Precise sep	10.48		Constellation	Vulpecula		SAO	88374
Gaia DR2	1833710899496317824

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20135+2431	POU4285		1999	2	330	10.5	12.60	13.40		D	201330.53+243050.4
20135+2431	POU4285		2001	3	330	10.6	12.60	13.40		D	201330.53+243050.4
20135+2431	POU4285		2010	4	330	10.3	12.60	13.40			201330.53+243050.4
20135+2431	POU4285		2015	5	330	10.5	12.60	13.40			201330.53+243050.4

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