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Doubles in session

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20306+2406
POU4542

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

20306+2406 POU4542

20^h 30^m 35.33^s +24° 05' 44.0" P.A. 59.00 sep 16.2 mag 14.20,14.60

Coord 2000	20306+2406		Discov num	POU4542		Comp			Coord arcsec 2000	20 30 35.33 +24 05 44.0
Date first	1899		Date last	2015		Obs	10
Pa first	59		Pa last	59		P.A. Now (θ)	59°
Sep first	15.2		Sep last	16.2		Sep. Now (ρ)	16.2"
Mag pri	14.20		Mag sec	14.60		delta mag (ΔM)	0.4		Spectral class
Pri motion ra	-005		Sec motion ra	+021
Pri motion dec	-010		Sec motion dec	+001
Notes

rPM=1.343

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa

59.3

Precise sep

16.166

Constellation

Vulpecula

Gaia DR2

1831374780873406336

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20306+2406	POU4542		1997	2	60	16.0	14.20	14.60		D	203035.33+240544.0
20306+2406	POU4542		2001	3	60	16.0	14.20	14.60		D	203035.33+240544.0
20306+2406	POU4542		2013	4	59	16.2	14.20	14.60			203035.33+240544.0
20306+2406	POU4542		2015	6	59	16.2	14.20	14.60			203035.33+240544.0

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