12489+1206 ENG 49 AC

Coord 2000	12489+1206		Discov num	ENG  49		Comp	AC		Coord arcsec 2000	12 48 52.42 +12 05 46.9
Date first	1909		Date last	2015		Obs	9
Pa first	343		Pa last	339.7		P.A. Now (θ)	339.7°
Sep first	283.7		Sep last	303.12		Sep. Now (ρ)	303.12"
Mag pri	7.17		Mag sec	10.18		delta mag (ΔM)	3.01		Spectral class	G5V+A0 (yellow/white)
Pri motion ra	+235		Sec motion ra	+015
Pri motion dec	-141		Sec motion dec	-024
Notes	N U (See Notes, Proper motion indicates non-physical)

rPM=0.909 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 111398	100279	12 48 52 +12 05 47	ENG 49 AB	2015	15	348	176.4	7.17	10.81	3.64
Show		100279	12 48 52 +12 05 47	ENG 49 AC	2015	9	340	303.1	7.17	10.18	3.01		<===
Show		100279	12 48 52 +12 05 47	SLE 903 AD	2015	8	182	200.1	7.17	11.81	4.64
Show		100279	12 48 52 +12 05 47	LEP 59 AE	2016	7	169	75.7	7.17	16.35	9.18
Show			12 48 50 +12 08 37	ENG 49 BC	2015	19	328	131.1	10.81	10.18	0.63

Quintuple system
5 estimated visually detectable stars in this system

Constellation	Virgo		SAO	100279		HIP	62536		Tycho2	0885-00518-1
Gaia DR2	3928040444539772800		HD	111398		BD	BD+12 2518		Distance	37.81
Distance ly	123.34

discov_num	notes	refcode
LEP 59	AE: M4, spectroscopic distance 24pc. 75" from G5 dwarf HD 111398 =
	HIP 62536 = 2MASS J12485242+1205469. Hipparcos pm for the G dwarf is
	+235-140, consistent with the USNO-B1 pm for M dwarf of +234-119.	Red2007a
	E: 2MASS J12485345+1204326 is a wide (76") common proper motion
	companion to HIP 62536 (Lepine & Bongiorno 2007), but is single in the	Lep2007
	AstraLux images.	Jnn2012

refcode	metd	author	reference
Jnn2012	Cl j	Janson, M., Hormuth, F., Bergfors, C., Brandner, W., Hippler, S., Daemgen, S.,	2012ApJ...754...44J
Jnn2012	+E2	Kudryavtseva, N., Schmalzl, E., Schnupp, C., & Henning, T.
Jnn2012		ApJ 754, 44, 2012 (some recalibrated measures published in Jnn2014b)	2014ApJS..214...17J
Lep2007	P -	Lepine, S. & Bongiorno, B.	2007AJ....133..889L
Lep2007	+Ht	AJ 133, 889, 2007
Lep2007	+E2	(data from LSPM catalog for cpm pairs, compiled from Tycho, 2MASS, USNO-B, etc.
Lep2007		and reduced to J2000. Measures only added for new pairs; most of these have been
Lep2007		T-coded as 2MASS astrometry was generated and added to WDS)
Red2007a	E2 -	Reid, I.N., Cruz, K.L., & Allen, P.	2007AJ....133.2825R
Red2007a		AJ 133, 2825, 2007
Red2007a		(coarse separations replaced with measures extracted from the 2MASS Catalog)

idgroup	discov	author
1	ENG	changed from EN to ENG and that for Engelhardt from ENG to ENH. This has led to
32	SLE	Soulie, G.

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
12489+1206	ENG 49	AC	2002	5	342	298.2	7.17	10.18		D	124852.42+120546.9
12489+1206	ENG 49	AC	2015	9	340	303.1	7.17	10.18	G5V+A0	NU	124852.42+120546.9

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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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