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01493+4754
STF 162 AB
HD 11031

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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

01493+4754 STF 162 AB (HD 11031)

01^h 49^m 15.47^s +47° 53' 47.1" P.A. 197.00 sep 2.0 mag 6.47,7.22 Sp A3V dist. 127.55 pc (416.07 l.y.)

Coord 2000	01493+4754		Discov num	STF 162		Comp	AB		Coord arcsec 2000	01 49 15.47 +47 53 47.1
Date first	1828		Date last	2020		Obs	181
Pa first	227		Pa last	197.4		P.A. Now (θ)	197.4°
Sep first	2.2		Sep last	1.971		Sep. Now (ρ)	1.971"
Mag pri	6.47		Mag sec	7.22		delta mag (ΔM)	0.75		Spectral class	A3V (white)
Pri motion ra	-017		Sec motion ra	-017
Pri motion dec	-003		Sec motion dec	-003
Notes	N T (See Notes, Parallax indicates physical)

This double is physical.

01493+4754 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		37536	01 49 15 +47 53 47	CHR 4 Aa,Ab	1994	7	251	0.1	6.47			Y
Show	HD 11031	37536	01 49 15 +47 53 47	STF 162 AB	2020	181	197	2.0	6.47	7.22	0.75		<===
Show		37536	01 49 15 +47 53 47	STF 162 AC	2020	65	178	20.7	6.47	9.24	2.77
Show		37536	01 49 15 +47 53 47	STF 162 AD	2016	12	96	138.8	6.47	10.01	3.54
Show		37536	01 49 15 +47 53 47	STF 162 BC	2018	11	177	19.2	7.22	9.24	2.02

Quintuple system
4 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Name	HD 11031		Constellation	Perseus		SAO	37536		HIP	8475
Tycho2	3283-02002-1		Gaia DR2	357046923445911040		HD	11031		HR	526
GC	2200		ADS	1438		BD	BD+47 508		Distance	127.55
Distance ly	416.07