20079-3951 CRU9011AB

Coord 2000	20079-3951		Discov num	CRU9011		Comp	AB		Coord arcsec 2000	20 07 53.74 -39 50 36.0
Date first	1879		Date last	2015		Obs	7
Pa first	184		Pa last	185		P.A. Now (θ)	185°
Sep first	87.5		Sep last	82.5		Sep. Now (ρ)	82.5"
Mag pri	7.60		Mag sec	9.50		delta mag (ΔM)	1.9		Spectral class	F5V (yellow-white)
Pri motion ra	+014		Sec motion ra	-002
Pri motion dec	-098		Sec motion dec	-027
Notes

rPM=0.735 Nature of this double is uncertain.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		211830	20 07 54 -39 50 36	CRU 9011 AB	2015	7	185	82.5	7.60	9.50	1.90		<===
Show		211830	20 07 54 -39 50 36	CRU 9011 AC	2015	7	96	80.1	7.60	9.50	1.90

Triple system
3 visible stars in this system

Precise pa	184.9		Precise sep	82.458		Constellation	Hydra		SAO	211830
Tycho2	7951-01107-1		Gaia DR2	6687540473903265920		HD	190730

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20079-3951	CRU9011	AB	2000	3	185	83.4	7.60	9.50			200753.74-395036.0
20079-3951	CRU9011	AB	2015	7	185	82.5	7.60	9.50	F5V		200753.74-395036.0

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