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	2017		Obs	23
Pa first	296		Pa last	295		P.A. Now (θ)	295°
Sep first	7.5		Sep last	7.8		Sep. Now (ρ)	7.8"
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

rPM=0.216 (< 0.3, Physical double) This double is physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			00518-0810	RST4160	AB	1938	2019	6	157	0.0	9.30	9.80	0.50
Show			00518-0810	STF 68	AB,C	1830	2017	23	295	7.8	8.31	9.91	1.60		<===

Triple system
4 visible stars in this system

Precise pa	295		Precise sep	7.75		Constellation	Cetus		HIP	4044
Tycho2	5270-00576-1		Gaia DR2	81243456384		HD	4987		BD	BD-08 154
Distance	156.49		Distance ly	510.47

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
00518-0810	STF 68	AB,C	2017	21	295	7.8	8.31	9.91	G0		005150.50-080956.9

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