20318+3517 SEI1152

Coord 2000	20318+3517		Discov num	SEI1152		Comp			Coord arcsec 2000	20 31 50.32 +35 16 42.2
Date first	1896		Date last	2015		Obs	16
Pa first	317		Pa last	316		P.A. Now (θ)	316°
Sep first	26.2		Sep last	25.3		Sep. Now (ρ)	25.3"
Mag pri	8.75		Mag sec	10.95		delta mag (ΔM)	2.2		Spectral class	K0 (yellow-orange)
Pri motion ra	+007		Sec motion ra	+007
Pri motion dec	-013		Sec motion dec	-022
Notes

rPM=0.39 Nature of this double is uncertain.

Precise pa	315.9		Precise sep	25.335		Constellation	Cygnus		SAO	70157
Tycho2	2693-01532-1		Gaia DR2	92845978752

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20318+3517	SEI1152		1999	8	316	25.4	8.75	10.95	K0	D	203150.32+351642.2
20318+3517	SEI1152		2002	9	316	25.5	8.75	10.95	K0	D	203150.32+351642.2
20318+3517	SEI1152		2013	10	316	25.0	8.75	10.95	K0		203150.32+351642.2
20318+3517	SEI1152		2015	12	316	25.3	8.75	10.95	K0		203150.32+351642.2

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