00426+7122 STF 48 AB (HD 3891)

00^h 42^m 40.01^s +71° 21' 57.3" P.A. 333.00 sep 5.4 mag 7.80,8.05 Sp ApSi dist. 277.01 pc (903.61 l.y.)

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	333.4		P.A. Now (θ)	333.4°
Sep first	5.4		Sep last	5.447		Sep. Now (ρ)	5.447"
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.

00426+7122 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 3891	4191	00 42 40 +71 21 57	STF 48 AB	2020	72	333	5.4	7.80	8.05	0.25		<===
Show			00 42 40 +71 22 02	BAZ 1 BC	2010	7	319	65.8	8.05	10.98	2.93

Triple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Name	HD 3891		Constellation	Cassiopeia		SAO	4191		HIP	3348
Tycho2	4303-02013-1		Gaia DR2	536200282927585664		HD	3891		GC	832
BD	BD+70 39		Distance	277.01		Distance ly	903.61