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20238+2357
POU4438

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

20238+2357 POU4438

20^h 23^m 49.44^s +23° 56' 52.8" P.A. 136.00 sep 15.2 mag 13.40,14.20

Coord 2000	20238+2357		Discov num	POU4438		Comp			Coord arcsec 2000	20 23 49.44 +23 56 52.8
Date first	1899		Date last	2015		Obs	8
Pa first	135		Pa last	136		P.A. Now (θ)	136°
Sep first	15.4		Sep last	15.2		Sep. Now (ρ)	15.2"
Mag pri	13.40		Mag sec	14.20		delta mag (ΔM)	0.8		Spectral class
Pri motion ra	+005		Sec motion ra	+022
Pri motion dec	-013		Sec motion dec	-015
Notes

rPM=0.643

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Precise pa

135.6

Precise sep

15.204

Constellation

Vulpecula

Gaia DR2

1831228270955707008

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20238+2357	POU4438		1999	2	135	15.3	13.40	14.20		D	202349.44+235652.8
20238+2357	POU4438		2008	3	136	15.6	13.40	14.20		D	202349.44+235652.8
20238+2357	POU4438		2010	5	135	15.1	13.40	14.20			202349.44+235652.8
20238+2357	POU4438		2015	6	136	15.2	13.40	14.20			202349.44+235652.8

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