19501+5439 STF2598

Coord 2000	19501+5439		Discov num	STF2598		Comp			Coord arcsec 2000	19 50 07.53 +54 39 06.5
Date first	1828		Date last	2018		Obs	24
Pa first	145		Pa last	150		P.A. Now (θ)	150°
Sep first	12.0		Sep last	11.8		Sep. Now (ρ)	11.8"
Mag pri	8.17		Mag sec	10.58		delta mag (ΔM)	2.41		Spectral class	K5 (yellow-orange)
Pri motion ra	+001		Sec motion ra	-015
Pri motion dec	-003		Sec motion dec	-012
Notes

rPM=0.956 This double is not physical.

Precise pa	150.1		Precise sep	11.791		Constellation	Cygnus		SAO	32037
HIP	97587		Tycho2	3939-01659-1		Gaia DR2	05765423104		HD	187979
BD	BD+54 2232		Distance	317.46		Distance ly	1035.55

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19501+5439	STF2598		2003	16	150	11.8	8.17	10.58	K5	D	195007.53+543906.5
19501+5439	STF2598		2015	19	150	11.8	8.17	10.58	K5		195007.53+543906.5
19501+5439	STF2598		2018	20	150	11.8	8.17	10.58	K5		195007.53+543906.5

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