08517-0647 BU  407AB

Coord 2000	08517-0647		Discov num	BU  407		Comp	AB		Coord arcsec 2000	08 51 44.98 -06 47 03.5
Date first	1877		Date last	2015		Obs	18
Pa first	165		Pa last	167		P.A. Now (θ)	167°
Sep first	6.1		Sep last	5.8		Sep. Now (ρ)	5.8"
Mag pri	7.82		Mag sec	10.31		delta mag (ΔM)	2.49		Spectral class	A0 (white)
Pri motion ra	-024		Sec motion ra	-025
Pri motion dec	+015		Sec motion dec	+009
Notes

rPM=0.215 (< 0.3, Physical double) This double is physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			08517-0647	BU 407	AB	1877	2015	18	167	5.8	7.82	10.31	2.49		<===
Show			08517-0647	BU 407	AC	1893	2015	10	165	91.9	7.82	11.39	3.57

Triple system
3 visible stars in this system

Precise pa	167.3		Precise sep	5.792		Constellation	Hydra		HIP	43511
Tycho2	4876-00930-1		Gaia DR2	40787229824		HD	75770		BD	BD-06 2744
Distance	229.89		Distance ly	749.9

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
08517-0647	BU 407	AB	1998	13	166	6.0	7.82	10.31	A0	D	085144.98-064703.5
08517-0647	BU 407	AB	2000	14	166	6.1	7.82	10.31	A0	D	085144.98-064703.5
08517-0647	BU 407	AB	2013	15	167	5.9	7.82	10.31	A0		085144.98-064703.5
08517-0647	BU 407	AB	2014	16	166	6.0	7.82	10.31	A0		085144.98-064703.5
08517-0647	BU 407	AB	2015	18	167	5.8	7.82	10.31	A0		085144.98-064703.5

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