00518-0810 STF  68AB,C

Coord 2000	00518-0810		Discov num	STF  68		Comp	AB,C		Coord arcsec 2000	00 51 50.50 -08 09 56.9
Date first	1830		Date last	2015		Obs	20
Pa first	296		Pa last	296		P.A. Now (θ)	296°
Sep first	7.5		Sep last	8.0		Sep. Now (ρ)	8"
Mag pri	8.31		Mag sec	9.91		delta mag (ΔM)	1.6		Spectral class	G0 (yellow)
Pri motion ra	+063		Sec motion ra	+049
Pri motion dec	+028		Sec motion dec	+033
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			00518-0810	RST4160	AB	1938	1980	4	154	0.2	9.30	9.80	0.50
Show			00518-0810	STF 68	AB,C	1830	2015	20	296	8.0	8.31	9.91	1.60		<===

Triple system
4 visible stars in this system

Constellation	Cetus		HIP	4044		Tycho2	5270-00576-1		HD	4987
BD	BD-08 154		Distance	156.49		Distance ly	510.47		last precise pa	295.9
last precise sep	7.98

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00518-0810	STF 68	AB,C	2003	18	294	7.9	8.31	9.91		D	005150.50-080956.9
00518-0810	STF 68	AB,C	2015	20	296	8.0	8.31	9.91	G0		005150.50-080956.9

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