00518-0810 RST4160AB

Coord 2000	00518-0810		Discov num	RST4160		Comp	AB		Coord arcsec 2000	00 51 50.50 -08 09 56.9
Date first	1938		Date last	1980		Obs	4
Pa first	178		Pa last	154		P.A. Now (θ)	154°
Sep first	0.4		Sep last	0.2		Sep. Now (ρ)	0.2"
Mag pri	9.30		Mag sec	9.80		delta mag (ΔM)	0.5		Spectral class	G0 (yellow)
Pri motion ra	+034		Sec motion ra
Pri motion dec	+049		Sec motion dec
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	154.3
last precise sep	0.15

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00518-0810	RST4160	AB	1980	4	154	0.2	9.30	9.80	G0		005150.50-080956.9

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