00290+6028 BKO 121AC

Coord 2000	00290+6028		Discov num	BKO 121		Comp	AC		Coord arcsec 2000	00 29 00.00 +60 28 40.0
Date first	1999		Date last	2015		Obs	8
Pa first	343		Pa last	342		P.A. Now (θ)	342°
Sep first	22.5		Sep last	22.6		Sep. Now (ρ)	22.6"
Mag pri	13.10		Mag sec	13.00		delta mag (ΔM)	0.1		Spectral class
Pri motion ra	+014		Sec motion ra	+003
Pri motion dec	-001		Sec motion dec	+009
Notes

rPM=1.059 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			00 29 00 +60 28 40	STI 71 AB	2015	10	23	11.5	13.10	13.70	0.60
Show			00 29 00 +60 28 40	BKO 121 AC	2015	8	342	22.6	13.10	13.00	0.10		<===

Triple system
3 visible stars in this system

Precise pa

342.4

Precise sep

22.606

Constellation

Hydra

Gaia DR2

428642722609627008

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00290+6028	BKO 121	AC	2003	2	342	22.5	13.10	13.00		D	002900.00+602840.0
00290+6028	BKO 121	AC	2011	4	343	22.7	13.10	13.00			002900.00+602840.0
00290+6028	BKO 121	AC	2015	5	342	22.6	13.10	13.00			002900.00+602840.0

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