00426+7122 STF  48AB

Coord 2000	00426+7122		Discov num	STF  48		Comp	AB		Coord arcsec 2000	00 42 40.01 +71 21 57.3
Date first	1828		Date last	2020		Obs	72
Pa first	335		Pa last	333		P.A. Now (θ)	333°
Sep first	5.4		Sep last	5.4		Sep. Now (ρ)	5.4"
Mag pri	7.80		Mag sec	8.05		delta mag (ΔM)	0.25		Spectral class	ApSi (white)
Pri motion ra	+021		Sec motion ra	+021
Pri motion dec	-005		Sec motion dec	-005
Notes

Nature of this double is uncertain.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		4191	00 42 40 +71 21 57	STF 48 AB	2020	72	333	5.4	7.80	8.05	0.25		<===
Show		4190	00 42 40 +71 22 02	BAZ 1 BC	2010	7	319	65.8	8.05	10.98	2.93

Triple system
3 visible stars in this system

Precise pa	333.4		Precise sep	5.447		Constellation	Hydra		SAO	4191
HIP	3348		Tycho2	4303-02013-1		Gaia DR2	536200282927585664		HD	3891
BD	BD+70 39		Distance	277.01		Distance ly	903.61

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00426+7122	STF 48	AB	1999	60	334	5.4	7.80	8.05	ApSi	D	004240.01+712157.3
00426+7122	STF 48	AB	2003	61	334	5.4	7.80	8.05	ApSi	D	004240.01+712157.3
00426+7122	STF 48	AB	2010	62	334	5.4	7.80	8.05	ApSi	D	004240.01+712157.3
00426+7122	STF 48	AB	2016	71	334	5.5	7.80	8.05	ApSi		004240.01+712157.3
00426+7122	STF 48	AB	2020	72	333	5.4	7.80	8.05	ApSi		004240.01+712157.3

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