01148-0058 BUP 18 AB (38 Cet)

Coord 2000	01148-0058		Discov num	BUP  18		Comp	AB		Coord arcsec 2000	01 14 49.18 -00 58 27.5
Date first	1909		Date last	2015		Obs	5
Pa first	276		Pa last	264.6		P.A. Now (θ)	264.6°
Sep first	114.1		Sep last	111.586		Sep. Now (ρ)	111.586"
Mag pri	5.75		Mag sec	13.77		delta mag (ΔM)	8.02		Spectral class	BI (blue-white)
Pri motion ra	-015		Sec motion ra	+008
Pri motion dec	+205		Sec motion dec	-004
Notes	N (See Notes)

rPM=1.023 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	38 Cet	129196	01 14 49 -00 58 28	BUP 18 AB	2015	5	265	111.6	5.75	13.77	8.02		<===
Show		129196	01 14 49 -00 58 28	BUP 18 AC	1909	1	227	217.8	5.75	14.10	8.35

Triple system
3 estimated visually detectable stars in this system

Name	38 Cet		Constellation	Cetus		SAO	129196		HIP	5833
Tycho2	4681-00247-1		HD	7476		HR	368		GC	1501
BD	BD-01 162		Flamsteed	38 Ceti		Flamsteed name	38 Cet		FK5	2084
Distance	42.92		Distance ly	140.01

discov_num	notes	refcode
BUP 18	38 Cet.
	A is a blue supergiant with multiple pulsation periods.	IAU2014e
	AC: C component is galaxy NGC 442.

refcode	metd	author	reference
IAU2014e	-	Tomic, S. (IAU Symposium 307, in press)	.

idgroup	discov	author
1	BUP	Burnham proper motion stars (see Burnham, Carnegie Inst. Wash. #168, 1913)

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
01148-0058	BUP 18	AB	1999	3	266	111.3	5.75	13.77	BI	N	011449.18-005827.5
01148-0058	BUP 18	AB	2015	4	265	111.6	5.75	13.77	BI	N	011449.18-005827.5

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Radius: auto 0.5" 0.8" 1" 2" 3" 5" 10" 15" 20" 25" 30" 35" 40" 45" 50" 55" 1' 2' 3' 4' 5' 6' 7' 8' 9' 10' 15' 20' 30' 40' 50' 1° 2° 4° 5° 8° Components only

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS