01535+1918 STF 180 AC

01^h 53^m 31.76^s +19° 17' 38.6" P.A. 81.00 sep 214.9 mag 4.52,8.63 Sp A1pSi dist. 50.3 pc (164.08 l.y.)

Coord 2000	01535+1918		Discov num	STF 180		Comp	AC		Coord arcsec 2000	01 53 31.76 +19 17 38.6
Date first	1823		Date last	2015		Obs	19
Pa first	85		Pa last	81.3		P.A. Now (θ)	81.3°
Sep first	228.8		Sep last	214.9		Sep. Now (ρ)	214.9"
Mag pri	4.52		Mag sec	8.63		delta mag (ΔM)	4.11		Spectral class	A1pSi (white)
Pri motion ra	+083		Sec motion ra	+002
Pri motion dec	-107		Sec motion dec	-011
Notes	N (See Notes)

rPM=0.928

This double is not physical.

01535+1918 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	Mesarthim	92680	01 53 32 +19 17 39	STF 180 AB	2022	399	0	7.3	4.52	4.58	0.06
Show		92680	01 53 32 +19 17 39	STF 180 AC	2015	19	81	214.9	4.52	8.63	4.11		<===
Show		92684	01 53 32 +19 17 46	STF 180 BC	2015	11	83	214.0	4.58	8.63	4.05
Show		92684	01 53 47 +19 18 09	BU 512 CD	1975	14	24	1.6	8.63	13.60	4.97

Quadruple system
4 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Common name	Mesarthim		Var name	Gam Ari		Constellation	Aries		SAO	92680
HIP	8832		Tycho2	1209-01835-1		Gaia DR2	93806419367308544		HD	11502
HR	546		GC	2290		ADS	1507		BD	BD+18 243
Bayer	Gamma 1 Arietis		Bayer name	Gam1 Ari		Flamsteed	5 Arietis		Flamsteed name	5 Ari
Distance	50.3		Distance ly	164.08		Bayer greek	γ¹ Ari