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Doubles in session

Current system

20057+2336
POU4211

Selections

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Binocular doubles
Binary Systems
Triple Systems
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Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20057+2336 POU4211

20^h 05^m 41.78^s +23° 36' 32.3" P.A. 13.00 sep 14.2 mag 11.92,13.39

Coord 2000	20057+2336		Discov num	POU4211		Comp			Coord arcsec 2000	20 05 41.78 +23 36 32.3
Date first	1898		Date last	2015		Obs	8
Pa first	15		Pa last	13		P.A. Now (θ)	13°
Sep first	16.2		Sep last	14.2		Sep. Now (ρ)	14.2"
Mag pri	11.92		Mag sec	13.39		delta mag (ΔM)	1.47		Spectral class
Pri motion ra	-003		Sec motion ra	+023
Pri motion dec	-010		Sec motion dec	-011
Notes

rPM=1.021

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa

12.9

Precise sep

14.168

Constellation

Vulpecula

Gaia DR2

1833233878933217408

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20057+2336	POU4211		2000	2	13	14.4	11.92	13.39		D	200541.78+233632.3
20057+2336	POU4211		2001	3	13	14.3	11.92	13.39		D	200541.78+233632.3
20057+2336	POU4211		2011	4	13	14.2	11.92	13.39			200541.78+233632.3
20057+2336	POU4211		2015	6	13	14.2	11.92	13.39			200541.78+233632.3

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