01515-1020 BNU   1Aa,Ab

Coord 2000	01515-1020		Discov num	BNU   1		Comp	Aa,Ab		Coord arcsec 2000	01 51 27.61 -10 20 05.8
Date first	1979		Date last	1979		Obs	1
Pa first	172		Pa last	172		P.A. Now (θ)	172°
Sep first	0.1		Sep last	0.1		Sep. Now (ρ)	0.1"
Mag pri	3.73		Mag sec			delta mag (ΔM)			Spectral class	K0III (yellow-orange)
Pri motion ra	+041		Sec motion ra
Pri motion dec	-039		Sec motion dec
Notes	N (See 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		148059	01515-1020	BNU 1	Aa,Ab	1979	1979	1	172	0.1	3.73				<===
Show	Zet Cet	148059	01515-1020	BUP 26	AB	1835	2011	13	40	188.6	3.85	10.15	6.30

Triple system
2 visible stars in this system

Precise pa	172		Precise sep	0.055		Constellation	Cetus		SAO	148059
HIP	8645		Tycho2	5278-02437-1		HD	11353		HR	539
GC	2249		BD	BD-11 359		Bayer	Zeta Ceti		Bayer name	Zet Cet
Flamsteed	55 Ceti		Flamsteed name	55 Cet		Distance	72.05		Distance ly	235.03
last precise pa	172		last precise sep	0.055

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
01515-1020	BNU 1	Aa,Ab	1979	1	172	0.1	3.73		K0III	N	015127.61-102005.8

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