18130-2307 KRV 50 AE

Coord 2000	18130-2307		Discov num	KRV  50		Comp	AE		Coord arcsec 2000	18 13 02.49 -23 07 02.2
Date first	2015		Date last	2015		Obs	1
Pa first	21		Pa last	21.1		P.A. Now (θ)	21.1°
Sep first	63.0		Sep last	63.02		Sep. Now (ρ)	63.02"
Mag pri	6.90		Mag sec	18.70		delta mag (ΔM)	11.8		Spectral class	F7/8Ib/II (yellow-white)
Pri motion ra	+001		Sec motion ra
Pri motion dec	-004		Sec motion dec
Notes	N (See Notes)

Nature of this double is uncertain.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		186478	18 13 02 -23 07 02	EVS 34 AB	2011	1	86	6.3	6.96	17.85	10.89
Show		186478	18 13 02 -23 07 02	EVS 34 AC	2015	2	259	23.7	6.96	18.15	11.19
Show	12 Sgr	186478	18 13 02 -23 07 02	KRV 50 AD	2015	1	116	36.3	6.90	19.40	12.50
Show		186478	18 13 02 -23 07 02	KRV 50 AE	2015	1	21	63.0	6.90	18.70	11.80		<===

Quintuple system
5 estimated visually detectable stars in this system

Var name	AP Sgr		Constellation	Sagittarius		SAO	186478		HIP	89276
Tycho2	6843-00378-1		HD	166767		CD	CD-2314072		CP	CP-23 6945
Flamsteed	12 Sagittarii		Flamsteed name	12 Sgr		Distance	714.29		Distance ly	2330.01

discov_num	notes	refcode
EVS 34	Primary is the Cepheid AP Sgr. 12 Sgr.	Evs2016a

refcode	metd	author	reference
Evs2016a	H3 -	Evans, N.R., Bond, H.E., Schaefer, G.H., Mason, B.D., Tingle, E., Karovska, M., &	2016AJ....151..129E
Evs2016a		Pillitteri, I.
Evs2016a		AJ 151, 129, 2016
Evs2016a		(some theta values replaced with more precise values from Evs2016b)	2016AJ....151..108E

idgroup	discov	author
1	KRV	Kervella, P., Thevenin, F., & Petr-Gotzens, M.G.
10	KRV	Kervella, P., Gallenne, A., Evans, N.R., Szabados, L., Arenouu, F., Merand, A.,
10	KRV	Proto, Y., Karczmarek, P., Nardetto, N., Gieren, W. & Pietrzynski, G.
11	KRV	Kervella, P., Gallenne, A., Evans, N.R., Szabados, L., Arenouu, F., Merand, A.,
11	KRV	Nardetto, N., Gieren, W. & Pietrzynski, G.
13	KRV	Kervella, P., Borgniet, S., de Souza, A.D., Merand, A., Gallenne, A., Rivinius, T.,
13	KRV	Lacour, S., Carciofi, A., Faes, D.M., Le Bouquin, J.-B., Taormina, M., Pilecki, B.,
13	KRV	Berger, J.-P., Bendjoya, P., Klement, R., Millour, F., Janot-Pacheco, E., Spang, A.

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
18130-2307	KRV 50	AE	2015	1	21	63.0	6.90	18.70	F7/8Ib/II	N	181302.49-230702.2

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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

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