20340+3737 SEI1170

Coord 2000	20340+3737		Discov num	SEI1170		Comp			Coord arcsec 2000	20 33 59.02 +37 36 51.5
Date first	1895		Date last	2015		Obs	12
Pa first	29		Pa last	28		P.A. Now (θ)	28°
Sep first	16.9		Sep last	17.3		Sep. Now (ρ)	17.3"
Mag pri	12.36		Mag sec	13.40		delta mag (ΔM)	1.04		Spectral class
Pri motion ra	-004		Sec motion ra	-004
Pri motion dec	-005		Sec motion dec	+001
Notes

rPM=0.937 This double is not physical.

Precise pa	28.3		Precise sep	17.331		Constellation	Cygnus		Tycho2	3153-00340-1
Gaia DR2	59001361280

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20340+3737	SEI1170		2006	4	28	17.3	12.36	13.40		D	203359.02+373651.5
20340+3737	SEI1170		2009	5	29	17.5	12.36	13.40		D	203359.02+373651.5
20340+3737	SEI1170		2010	7	27	17.3	12.36	13.40			203359.02+373651.5
20340+3737	SEI1170		2015	8	28	17.3	12.36	13.40			203359.02+373651.5

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