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Doubles in session

Current system

20360+2509
POU4717

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

20360+2509 POU4717

20^h 36^m 00.74^s +25° 09' 13.7" P.A. 66.00 sep 15.4 mag 13.20,14.20

Coord 2000	20360+2509		Discov num	POU4717		Comp			Coord arcsec 2000	20 36 00.74 +25 09 13.7
Date first	1898		Date last	2015		Obs	10
Pa first	67		Pa last	66		P.A. Now (θ)	66°
Sep first	16.2		Sep last	15.4		Sep. Now (ρ)	15.4"
Mag pri	13.20		Mag sec	14.20		delta mag (ΔM)	1		Spectral class
Pri motion ra	+005		Sec motion ra	+024
Pri motion dec	-007		Sec motion dec	+004
Notes

rPM=0.902

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa

65.8

Precise sep

15.446

Constellation

Vulpecula

Gaia DR2

1855560291472496768

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20360+2509	POU4717		2000	2	66	15.4	13.20	14.20		D	203600.74+250913.7
20360+2509	POU4717		2002	4	66	15.6	13.20	14.20		D	203600.74+250913.7
20360+2509	POU4717		2010	5	66	15.4	13.20	14.20			203600.74+250913.7
20360+2509	POU4717		2015	6	66	15.7	13.20	14.20			203600.74+250913.7

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