00187+1559 STF  25AB

Coord 2000	00187+1559		Discov num	STF  25		Comp	AB		Coord arcsec 2000	00 18 42.80 +15 59 26.5
Date first	1831		Date last	2016		Obs	59
Pa first	193		Pa last	196		P.A. Now (θ)	196°
Sep first	1.7		Sep last	1.0		Sep. Now (ρ)	1"
Mag pri	9.31		Mag sec	9.55		delta mag (ΔM)	0.24		Spectral class	F5 (yellow-white)
Pri motion ra	+031		Sec motion ra	+031
Pri motion dec	-030		Sec motion dec	-030
Notes

Nature of this double is uncertain.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		91839	00187+1559	STF 25	AB	1831	2016	59	196	1.0	9.31	9.55	0.24		<===
Show		91839	00187+1559	STF 25	AB,C	1913	2000	6	202	171.5	8.97	13.17	4.20

Triple system
4 visible stars in this system

Precise pa	195.7		Precise sep	1.049		Constellation	Pisces		SAO	91839
HIP	1503		Tycho2	1179-00068-1		HD	1450		BD	BD+15 43
Distance	167.5		Distance ly	546.38		last precise pa	195.7		last precise sep	1.049

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00187+1559	STF 25	AB	2005	58	196	1.1	9.31	9.55	F5	D	001842.80+155926.5
00187+1559	STF 25	AB	2013	59	192	1.0	9.31	9.55	F5		001842.80+155926.5
00187+1559	STF 25	AB	2016	59	196	1.0	9.31	9.55	F5		001842.80+155926.5

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