00281-2512 B     5AC

Coord 2000	00281-2512		Discov num	B     5		Comp	AC		Coord arcsec 2000	00 28 03.50 -25 11 44.1
Date first	1926		Date last	2015		Obs	7
Pa first	237		Pa last	239		P.A. Now (θ)	239°
Sep first	26.2		Sep last	23.2		Sep. Now (ρ)	23.2"
Mag pri	9.38		Mag sec	12.30		delta mag (ΔM)	2.92		Spectral class	F7V (yellow-white)
Pri motion ra	-043		Sec motion ra	-015
Pri motion dec	-073		Sec motion dec	-050
Notes	N W (See Notes, )

rPM=0.428 Nature of this double is uncertain.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		166292	00 28 04 -25 11 44	B 5 AB	2016	4	224	1.3	9.38	12.60	3.22
Show		166292	00 28 04 -25 11 44	B 5 AC	2015	7	239	23.2	9.38	12.30	2.92		<===

Triple system
3 visible stars in this system

Precise pa	238.5		Precise sep	23.18		Constellation	Hydra		SAO	166292
Tycho2	6417-00572-1		Gaia DR2	2347608134488561280		HD	2450

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00281-2512	B 5	AC	1998	5	239	23.5	9.38	12.30		N D	002803.50-251144.1
00281-2512	B 5	AC	1999	6	238	23.7	9.38	12.30		N D	002803.50-251144.1
00281-2512	B 5	AC	2015	7	237	24.3	9.38	12.30	F7V	N	002803.50-251144.1

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