01531+2935 BUP  27AC

Coord 2000	01531+2935		Discov num	BUP  27		Comp	AC		Coord arcsec 2000	01 53 04.91 +29 34 43.8
Date first	1879		Date last	2012		Obs	6
Pa first	182		Pa last	183		P.A. Now (θ)	183°
Sep first	228.3		Sep last	198.5		Sep. Now (ρ)	198.5"
Mag pri	3.46		Mag sec	12.87		delta mag (ΔM)	9.41		Spectral class	F6IV (yellow-white)
Pri motion ra	+011		Sec motion ra	+007
Pri motion dec	-234		Sec motion dec	+001
Notes	N (See Notes)

Visually invisible, K-band or other infrared star rPM=1.003 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	Rasalmudallah	74996	01531+2935	BUP 27	AB	1879	2010	5	319	100.2	3.46	13.27	9.81
Show		74996	01531+2935	BUP 27	AC	1879	2012	6	183	198.5	3.46	12.87	9.41		<===
Show		74996	01531+2935	BUP 27	AD	1879	2012	8	172	277.2	3.46	10.99	7.53
Show		74996	01531+2935	DAL 51	AE	1997	2010	4	340	146.7	3.46	12.35	8.89
Show		74996	01531+2935	DAL 51	AF	1997	2010	3	148	229.5	3.46	14.22	10.76
Show		74996	01531+2935	DAL 51	FG	1997	2015	8	314	12.6	14.22	16.40	2.18

Septuple system
7 visible stars in this system

Precise pa	182.9		Precise sep	198.471		Constellation	Triangulum		SAO	74996
HIP	8796		Tycho2	1763-03028-1		Gaia DR2	6906886016		HD	11443
HR	544		GC	2272		GL	Gl 78.1		BD	BD+28 312
Bayer	Alpha Trianguli		Bayer name	Alp Tri		Flamsteed	2 Trianguli		Flamsteed name	2 Tri
Distance	19.42		Distance ly	63.35

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
01531+2935	BUP 27	AC	1909	2	182	222.3	3.41	12.20	F6IV	N	015304.90+293445.8
01531+2935	BUP 27	AC	2010	3	183	197.1	3.41	12.20	F6IV	N	015304.90+293445.8
01531+2935	BUP 27	AC	2012	6	183	198.5	3.46	12.87	F6IV	N	015304.90+293445.8

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