00522-2237 STN   3AC

Coord 2000	00522-2237		Discov num	STN   3		Comp	AC		Coord arcsec 2000	00 52 12.81 -22 37 02.1
Date first	1897		Date last	2015		Obs	11
Pa first	197		Pa last	146		P.A. Now (θ)	146°
Sep first	35.8		Sep last	12.9		Sep. Now (ρ)	12.9"
Mag pri	7.63		Mag sec	12.00		delta mag (ΔM)	4.37		Spectral class	F8V (yellow-white)
Pri motion ra	-111		Sec motion ra	+044
Pri motion dec	-204		Sec motion dec	-013
Notes	N L U (See Notes, Linear solution, Proper motion indicates non-physical)

Visually invisible, K-band or other infrared star rPM=1.059 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		166640	00522-2237	STN 3	AB	1877	2019	80	241	2.0	7.63	8.39	0.76
Show		166640	00522-2237	STN 3	AC	1897	2015	11	146	12.9	7.63	12.00	4.37		<===
Show		166640	00522-2237	STN 3	BD	2009	2009	1	337	0.6	8.40	12.40	4.00

Quadruple system
4 visible stars in this system

Precise pa	145.8		Precise sep	12.93		Constellation	Cetus		SAO	166640
HIP	4072		Tycho2	6422-00361-1		Gaia DR2	78034926208		HD	5058
CD	CD-23 334		Distance	52.97		Distance ly	172.79

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00522-2237	STN 3	AC	1999	9	158	14.7	7.63	12.00		N D	005212.88-223700.3
00522-2237	STN 3	AC	2015	11	146	12.9	7.63	12.00	F8V	NL U	005212.81-223702.1

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