11127-7722 WOI 1 AB

11^h 12^m 42.69^s -77° 22' 23.1" P.A. 253.00 sep 0.2 mag 7.90,9.30 Sp G8+K7

Coord 2000	11127-7722	Discov num	WOI 1	Comp	AB	Coord arcsec 2000	11 12 42.69 -77 22 23.1
Date first	1994	Date last	2021	Obs	9
Pa first	236	Pa last	253.1	P.A. Now (θ)	253.1°
Sep first	0.3	Sep last	0.211	Sep. Now (ρ)	0.211"
Mag pri	7.90	Mag sec	9.30	delta mag (ΔM)	1.4	Spectral class	G8+K7 (yellow/yellow-orange)
Pri motion ra	-080	Sec motion ra
Pri motion dec	-072	Sec motion dec
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

Nature of this double is uncertain.

11127-7722 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			11 12 43 -77 22 23	WOI 1 AB	2021	9	253	0.2	7.90	9.30	1.40		<===
Show			11 12 43 -77 22 23	LAF 16 AC	2007	2	81	2.4	7.90	14.90	7.00

Triple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation

Chamaeleon

Gaia DR2

5201159082825975552

WDS 11127-7722 WOI 1 AB : NOTES

discov_num	notes	refcode
WOI 1	Daemen et al derive component properties (units K,Lsun,Myr,Msun,Rsun):
	A: SpT = G8 +- 3 Teff = 5507 +- 440 L = 2.0 +- 0.4
	Age = 16. +30/-10 M = 1.3 +- 0.2 R = 1.52 +- 0.12
	B: SpT = K7 +- 1.5 Teff = 4060 +- 310 L = 0.35 +- 0.08
	Age = 9.0 +16/-6.5 M = 0.80 +0.15/-0.3 R = 1.20 +- 0.09	Dae2013
LAF 16	AC: C is a background star unrelated to the close AB pair.	Laf2008

REFERENCES

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
Laf2008	A j	Lafreniere, D., Jayawardhana, R., Brandeker, A., Ahmic, M., & van Kerkwijk, M.H.	2008ApJ...683..844L
Laf2008	+Hp	ApJ 683, 844, 2008

DISCOVERER

idgroup	discov	author
1	WOI	Woitas, J. & Leinert, Ch.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
11127-7722	WOI 1	AB	2006	3	247	0.2	8.38	9.93	G5	DK	111242.69-772223.1
11127-7722	WOI 1	AB	2009	5	248	0.2	7.90	9.30	G5	N DK	111242.69-772223.1
11127-7722	WOI 1	AB	2011	6	248	0.2	7.90	9.30	G8 K7	N K	111242.69-772223.1
11127-7722	WOI 1	AB	2018	7	252	0.2	7.90	9.30	G8+K7	N K	111242.69-772223.1
11127-7722	WOI 1	AB	2019	8	253	0.2	7.90	9.30	G8+K7	N K	111242.69-772223.1
11127-7722	WOI 1	AB	2021	9	253	0.2	7.90	9.30	G8+K7	N K	111242.69-772223.1

If you need more information about this double, apply for a data request form to the WDS.

WDS 11127-7722 WOI 1 AB : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 11127-7722 WOI 1 AB : MEASURES

No records found.

WDS 11127-7722 : VIRTUAL EYEPIECE

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Pass over with the mouse cursor to display the catalog designation.

WDS 11127-7722 : ALADIN DSS IMAGE @ 11^h 12^m 42.69^s -77° 22' 23.1"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 11127-7722 WOI 1 AB : NEIGHBORHOODS

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Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		11127-7722	WOI 1	AB	253	0.2
Show		11127-7722	LAF 16	AC	81	2.4
Show		11109-7725	KSA 66		245	28.4	7
Show		11106-7722	LOP 4	BC	35	6.0	7
Show		11106-7722	LAF 13	Aa,Ab	30	0.1	7
Show		11106-7722	LOP 3	AB	146	9.5	7
Show		11106-7722	LOP 4	AC	109	9.3	7
Show		11105-7717	KSA 64		297	29.5	10
Show		11097-7726	KSA 57		214	5.6	11
Show		11144-7733	BRR 4		69	5.5	13
Show		11106-7733	GHE 36	Aa,Ab	318	0.1	13
Show		11106-7733	KSA 65	AB	252	13.5	13
Show		11098-7731	PSI 3	AB	226	2.3	14
Show		11098-7731	PSI 3	AE	313	18.6	14
Show		11098-7731	PSI 3	EF	295	1.1	14
Show		11098-7731	PSI 3	BC	130	1.6	14
Show		11098-7731	PSI 3	BD	321	1.4	14
Show		11148-7734	LAF 19		237	0.3	14
Show		11092-7729	REP 20	AB	19	1.3	14
Show		11092-7729	REP 20	AC	70	4.5	14
Show		11092-7729	REP 20	BC	85	3.9	14
Show		11162-7714	DAM 366		222	4.8	15
Show		11096-7711	KSA 55	AB	262	27.5	16
Show		11096-7711	KSA 55	AC	180	28.2	16
Show		11089-7732	KSA 51		19	20.8	16
Show		11080-7718	LAF 7	Aa,Ab	23	0.5	17
Show		11080-7718	LOP 1	AB	296	9.9	17
Show		11080-7718	KSA 49	AC	57	26.0	17
Show		11079-7727	AGE 4	Ba,Bb	8	0.1	17
Show		11079-7727	AGE 3	AB	117	1.8	17
Show		11079-7727	KSA 48	AC	80	20.7	17
Show		11098-7738	GHE 29		53	0.7	18
Show		11072-7723	PSI 2		96	2.0	19
Show		11083-7734	GHE 27	AB	284	2.5	19
Show		11083-7734	SDT 4	Ba,Bb	88	0.2	19
Show		11068-7723	PSI 1		90	2.8	20
Show		11077-7734	AHM 2		40	0.2	20
Show		11076-7734	LAF 6	AB	35	1.4	21
Show		11076-7734	KSA 44	AC	5	24.6	21
Show		11076-7735	KSA 43	AB	169	28.1	21
Show		11076-7735	KSA 45	BC	169	14.3	22
Show		11063-7722	LAF 4	Aa,Ab	122	0.1	22
Show		11063-7722	KSA 37	AB	246	21.5	22
Show		11085-7739	NHR 7	AB	326	4.8	22
Show		11085-7739	KSA 50	AC	23	21.0	22
Show		11084-7740	NHR 5	AB	95	3.4	23
Show		11084-7740	NHR 5	AC	35	3.9	23
Show		11084-7740	NHR 5	AD	252	5.5	23
Show		11083-7739	NHR 4	AB	123	2.4	23
Show		11083-7739	NHR 4	AC	203	3.6	23
Show		11083-7739	NHR 4	AD	70	3.7	23

WDS 11127-7722 : COMPONENTS

	A	B
B	pa=215.7° sep=0.08"
C	pa=52.9° sep=0.65"	pa=51.1° sep=0.72"

11127-7722 A

Coord arcsec 2000	111242.69-772223.1		Mag	7.9		Spectral class	G8 (yellow)		PmRA	-80.00
PmDE	-72.0

11127-7722 B

Coord arcsec 2000	111242.68-772223.2		Mag	9.3		Spectral class	K7 (yellow-orange)		Calc delta mag	1.4
Calc coord	yes

11127-7722 C

Coord arcsec 2000

111242.85-772222.7

Mag

14.9

Calc delta mag

Calc coord

yes