11092-7729 REP 20 AC

Coord 2000	11092-7729		Discov num	REP  20		Comp	AC		Coord arcsec 2000	11 09 11.67 -77 29 12.8
Date first	1989		Date last	2015		Obs	6
Pa first	72		Pa last	70.4		P.A. Now (θ)	70.4°
Sep first	4.5		Sep last	4.511		Sep. Now (ρ)	4.511"
Mag pri	9.58		Mag sec	9.98		delta mag (ΔM)	0.4		Spectral class	M2.5+M2.5 (red/red)
Pri motion ra	-054		Sec motion ra	+099
Pri motion dec	-008		Sec motion dec	+032
Notes	N K (See Notes, K-band or other infrared magnitudes)

Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes rPM=1.52 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			11 09 12 -77 29 13	REP 20 AB	2015	5	19	1.3	9.58	9.86	0.28
Show			11 09 12 -77 29 13	REP 20 AC	2015	6	70	4.5	9.58	9.98	0.40		<===
Show			11 09 12 -77 29 13	REP 20 BC	2015	4	85	3.9	13.00	14.80	1.80

Triple system
3 estimated visually detectable stars in this system

Constellation

Chamaeleon

Gaia DR2

5201154444259173632

discov_num	notes	refcode
REP 20	Daemen et al derive component properties (units K,Lsun,Myr,Msun,Rsun):
	A: SpT = M2.5 +- 0.5 Teff = 3490 +- 70 L = 0.25 +- 0.05
	Age = 2.7 +0.7/-0.5 M = 0.36 +- 0.05 R = 1.37 +- 0.03
	B: SpT = M2 +- 0.5 Teff = 3560 +- 70 L = 0.20 +- 0.04
	Age = 4.0 +1.3/-1.0 M = 0.38 +- 0.05 R = 1.17 +- 0.02
	C: SpT = M2.5 +- 0.5 Teff = 3490 +- 70 L = 0.14 +- 0.03
	Age = 4.7 +2.3/-1.2 M = 0.34 +- 0.05 R = 1.04 +- 0.02
	The B component is an SB1.	Dae2013

refcode	metd	author	reference
Dae2013	A j	Daemgen, S., Petr-Gotzens, M.G., Correia, S., Teixeira, P.S., Brandner, W.,	2013A&A...554A..43D
Dae2013		Kley, W., & Zinnecker, H.
Dae2013		A&A 554, A43, 2013

idgroup	discov	author
1	REP	Reipurth, B. & Gee, G.

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
11092-7729	REP 20	AC	2006	3	71	4.5	9.58	9.98		DK	110912.21-772912.4
11092-7729	REP 20	AC	2011	5	70	4.5	9.58	9.98	M2.5 M2.5	N K	110912.21-772912.4
11092-7729	REP 20	AC	2015	6	70	4.5	9.58	9.98	M2.5+M2.5	N K	110911.67-772912.8

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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