01107+8021 STF  89

Coord 2000	01107+8021		Discov num	STF  89		Comp			Coord arcsec 2000	01 10 40.60 +80 20 37.4
Date first	1879		Date last	2016		Obs	24
Pa first	15		Pa last	320		P.A. Now (θ)	320°
Sep first	16.2		Sep last	16.9		Sep. Now (ρ)	16.9"
Mag pri	9.72		Mag sec	10.02		delta mag (ΔM)	0.3		Spectral class	K (yellow-orange)
Pri motion ra	+008		Sec motion ra	-052
Pri motion dec	-007		Sec motion dec	-025
Notes	N (See Notes)

Visually invisible, K-band or other infrared star rPM=1.086 This double is not physical.

Precise pa	320.4		Precise sep	16.936		Constellation	Cepheus		SAO	190
Tycho2	4501-01287-1		Gaia DR2	4583593984

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
01107+8021	STF 89		2006	16	322	16.6	9.72	10.02	K	N D	011040.60+802037.4
01107+8021	STF 89		2015	18	320	16.8	9.72	10.02	K	N	011040.60+802037.4
01107+8021	STF 89		2016	20	320	16.9	9.72	10.02	K	N	011040.60+802037.4

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