20159+1535 CHE 252

Coord 2000	20159+1535		Discov num	CHE 252		Comp			Coord arcsec 2000	20 15 51.62 +15 35 39.7
Date first	1910		Date last	2015		Obs	12
Pa first	304		Pa last	304		P.A. Now (θ)	304°
Sep first	37.6		Sep last	37.5		Sep. Now (ρ)	37.5"
Mag pri	9.75		Mag sec	11.00		delta mag (ΔM)	1.25		Spectral class
Pri motion ra	+002		Sec motion ra	-011
Pri motion dec	-003		Sec motion dec	-004
Notes

rPM=1.114 This double is not physical.

Precise pa	303.8		Precise sep	37.491		Constellation	Delphinus		Tycho2	1618-00202-1
Gaia DR2	24910811776

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20159+1535	CHE 252		1998	2	304	37.4	9.75	11.00		D	201551.62+153539.7
20159+1535	CHE 252		2008	3	304	37.4	9.75	11.00		D	201551.62+153539.7
20159+1535	CHE 252		2013	6	304	36.6	9.75	11.00			201551.62+153539.7
20159+1535	CHE 252		2015	8	304	37.4	9.75	11.00			201551.62+153539.7

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