20188+1442 CHE 300

Coord 2000	20188+1442		Discov num	CHE 300		Comp			Coord arcsec 2000	20 18 48.25 +14 42 31.0
Date first	1910		Date last	2016		Obs	16
Pa first	318		Pa last	319		P.A. Now (θ)	319°
Sep first	38.4		Sep last	40.2		Sep. Now (ρ)	40.2"
Mag pri	10.92		Mag sec	12.71		delta mag (ΔM)	1.79		Spectral class	A5+A0 (white/white)
Pri motion ra	+004		Sec motion ra	-001
Pri motion dec	-023		Sec motion dec	-007
Notes

rPM=0.718 Nature of this double is uncertain.

Precise pa	318.8		Precise sep	40.233		Constellation	Delphinus		Tycho2	1086-00297-1
Gaia DR2	00712813184		HD	355408

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20188+1442	CHE 300		1998	3	319	40.0	9.39	9.93		D	201848.25+144231.0
20188+1442	CHE 300		2008	4	319	40.2	9.39	9.93		D	201848.25+144231.0
20188+1442	CHE 300		2013	7	320	40.1	9.39	9.93			201848.25+144231.0
20188+1442	CHE 300		2016	12	319	40.2	10.92	12.71	A5+A0		201848.25+144231.0

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