00184+0344 HDO  12AC

Coord 2000	00184+0344		Discov num	HDO  12		Comp	AC		Coord arcsec 2000	00 18 25.38 +03 45 34.6
Date first	1868		Date last	2015		Obs	6
Pa first	315		Pa last	320		P.A. Now (θ)	320°
Sep first	25.0		Sep last	32.1		Sep. Now (ρ)	32.1"
Mag pri	11.86		Mag sec	13.64		delta mag (ΔM)	1.78		Spectral class
Pri motion ra	-026		Sec motion ra	+001
Pri motion dec	-025		Sec motion dec	-005
Notes	N (See Notes)

rPM=0.932 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			00 18 25 +03 45 35	HDO 12 AB	2015	9	9	5.5	11.86	12.90	1.04
Show			00 18 25 +03 45 35	HDO 12 AC	2015	6	320	32.1	11.86	13.64	1.78		<===

Triple system
3 visible stars in this system

Precise pa	320.4		Precise sep	32.148		Constellation	Hydra		Tycho2	0005-00404-1
Gaia DR2	2548856489365785344

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00184+0344	HDO 12	AC	2000	2	320	32.3	11.86	14.50		N D	001825.38+034534.6
00184+0344	HDO 12	AC	2015	4	320	32.1	11.86	13.64		N	001825.38+034534.6

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