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20004+3434
SEI 779

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

20004+3434 SEI 779

20^h 00^m 22.32^s +34° 33' 29.9" P.A. 116.00 sep 16.5 mag 12.40,12.80

Coord 2000	20004+3434		Discov num	SEI 779		Comp			Coord arcsec 2000	20 00 22.32 +34 33 29.9
Date first	1894		Date last	2015		Obs	11
Pa first	115		Pa last	116		P.A. Now (θ)	116°
Sep first	16.2		Sep last	16.5		Sep. Now (ρ)	16.5"
Mag pri	12.40		Mag sec	12.80		delta mag (ΔM)	0.4		Spectral class
Pri motion ra	-001		Sec motion ra	+001
Pri motion dec	+000		Sec motion dec	-003
Notes

rPM=1.14

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa

115.9

Precise sep

16.456

Constellation

Cygnus

Gaia DR2

2058553021572572928

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20004+3434	SEI 779		1982	2	116	16.4	10.19	10.20			200017.69+343429.1
20004+3434	SEI 779		2012	3	116	16.7	12.40	12.80			200022.32+343329.9
20004+3434	SEI 779		2015	7	116	16.5	12.40	12.80			200022.32+343329.9

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