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20355+2520
POU4708

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

20355+2520 POU4708

20^h 35^m 32.61^s +25° 19' 45.5" P.A. 88.00 sep 17.3 mag 11.80,13.20

Coord 2000	20355+2520		Discov num	POU4708		Comp			Coord arcsec 2000	20 35 32.61 +25 19 45.5
Date first	1898		Date last	2015		Obs	11
Pa first	90		Pa last	88		P.A. Now (θ)	88°
Sep first	17.2		Sep last	17.3		Sep. Now (ρ)	17.3"
Mag pri	11.80		Mag sec	13.20		delta mag (ΔM)	1.4		Spectral class
Pri motion ra	-003		Sec motion ra	+003
Pri motion dec	-002		Sec motion dec	-001
Notes

rPM=1.687

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	88.1		Precise sep	17.308		Constellation	Vulpecula		SAO	88878
Gaia DR2	1855578154234243840

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20355+2520	POU4708		2000	2	88	17.3	11.80	13.20		D	203532.61+251945.5
20355+2520	POU4708		2008	3	87	17.5	11.80	13.20		D	203532.61+251945.5
20355+2520	POU4708		2010	6	88	17.4	11.80	13.20			203532.61+251945.5
20355+2520	POU4708		2015	7	88	17.3	11.80	13.20			203532.61+251945.5

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