20016+3417 SEI 793

Coord 2000	20016+3417		Discov num	SEI 793		Comp			Coord arcsec 2000	20 01 35.41 +34 16 24.3
Date first	1894		Date last	1894		Obs	1
Pa first	27		Pa last	27.2		P.A. Now (θ)	27.2°
Sep first	4.0		Sep last	4.039		Sep. Now (ρ)	4.039"
Mag pri	11.00		Mag sec	11.00		delta mag (ΔM)	0		Spectral class
Pri motion ra	+000		Sec motion ra
Pri motion dec	-004		Sec motion dec
Notes	N X (See Notes, Dubious double)

Nature of this double is uncertain.

Constellation

Cygnus

Gaia DR2

2058486191878531328

discov_num	notes	refcode
SEI 793	Duplicity not apparent on POSS plate; one component may be either
	variable star or flaw on AC Potsdam plate.

refcode	metd	author	reference
Sei1908	Pa -	Scheiner, J.	1908POPot..59.....S
Sei1908	+Po	Pub. Obs. Potsdam 20, #59, 1908
Sei1913A	Pa -	Scheiner, J.	1913QB811.B8.......
Sei1913A		cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Sei1932A	Pa -	Scheiner, J.	1932QB821.A43......
Sei1932A		cited in ADS (Aitken Double Star Cat.), 1932

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20016+3417	SEI 793		1894	1	27	4.0	11.00	11.00		N	200135.26+341620.4

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Radius: auto 0.5" 0.8" 1" 2" 3" 5" 10" 15" 20" 25" 30" 35" 40" 45" 50" 55" 1' 2' 3' 4' 5' 6' 7' 8' 9' 10' 15' 20' 30' 40' 50' 1° 2° 4° 5° 8° Components only

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS