00180+5517 STI1315

Coord 2000	00180+5517		Discov num	STI1315		Comp			Coord arcsec 2000	00 18 00.11 +55 17 44.7
Date first	1912		Date last	2015		Obs	9
Pa first	107		Pa last	106		P.A. Now (θ)	106°
Sep first	12.5		Sep last	12.0		Sep. Now (ρ)	12"
Mag pri	12.56		Mag sec	12.60		delta mag (ΔM)	0.04		Spectral class
Pri motion ra	-009		Sec motion ra	-011
Pri motion dec	+001		Sec motion dec	+000
Notes

rPM=0.203 (< 0.3, Physical double) This double is physical.

Precise pa	105.5		Precise sep	11.961		Constellation	Cassiopeia		Tycho2	3657-01401-1
Gaia DR2	419930742224138368

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00180+5517	STI1315		1990	3	287	12.5	12.56	12.90			001800.13+551744.6
00180+5517	STI1315		2011	4	286	12.1	12.56	12.90			001800.13+551744.6
00180+5517	STI1315		2015	9	106	12.0	12.56	12.60			001800.11+551744.7

If you need more information about this double, apply for a data request form to the WDS.