20221+3855 SEI1104

Coord 2000	20221+3855		Discov num	SEI1104		Comp			Coord arcsec 2000	20 22 02.98 +38 55 01.9
Date first	1895		Date last	2015		Obs	14
Pa first	194		Pa last	195		P.A. Now (θ)	195°
Sep first	17.3		Sep last	18.2		Sep. Now (ρ)	18.2"
Mag pri	11.11		Mag sec	11.72		delta mag (ΔM)	0.61		Spectral class
Pri motion ra	-015		Sec motion ra	-004
Pri motion dec	-034		Sec motion dec	-004
Notes

rPM=0.86 This double is not physical.

Precise pa	194.5		Precise sep	18.222		Constellation	Cygnus		Tycho2	3152-00985-1
Gaia DR2	81520592896

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20221+3855	SEI1104		1998	7	194	18.0	11.11	11.71		D	202202.98+385501.9
20221+3855	SEI1104		2002	8	194	18.1	11.11	11.71		D	202202.98+385501.9
20221+3855	SEI1104		2010	9	195	18.6	11.11	11.72			202202.98+385501.9
20221+3855	SEI1104		2015	10	195	18.2	11.11	11.72			202202.98+385501.9

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