01111+5509 STT 553AB (Marfak)

Coord 2000	01111+5509		Discov num	STT 553		Comp	AB		Coord arcsec 2000	01 11 06.16 +55 08 59.6
Date first	1853		Date last	2012		Obs	12
Pa first	132		Pa last	143		P.A. Now (θ)	143°
Sep first	154.6		Sep last	126.4		Sep. Now (ρ)	126.4"
Mag pri	4.34		Mag sec	11.31		delta mag (ΔM)	6.97		Spectral class	A7V (white)
Pri motion ra	+227		Sec motion ra	+008
Pri motion dec	-019		Sec motion dec	+001
Notes	N L U (See Notes, Linear solution, Proper motion indicates non-physical)

Visually invisible, K-band or other infrared star rPM=0.965 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	Marfak	22070	01111+5509	STT 553	AB	1853	2012	12	143	126.4	4.34	11.31	6.97		<===
Show		22070	01111+5509	FYM 8	AC	1999	2011	4	147	59.8	4.34	13.40	9.06

Triple system
3 visible stars in this system

Precise pa	142.8		Precise sep	126.36		Common name	Marfak		Constellation	Cassiopeia
SAO	22070		HIP	5542		Gaia DR2	7281189504		HD	6961
HR	343		GC	1424		BD	BD+54 236		Bayer	Theta Cassiopeiae
Bayer name	The Cas		Flamsteed	33 Cassiopeiae		Flamsteed name	33 Cas		Distance	40.95
Distance ly	133.58

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
01111+5509	STT 553	AB	2012	12	143	126.4	4.34	11.31	A7V	NL U	011106.16+550859.6

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