11080-7739 GHE 34 AB

11^h 07^m 57.96^s -77° 38' 44.9" P.A. 82.00 sep 16.4 mag 7.20,9.20 Sp K7+M0.5

Coord 2000	11080-7739	Discov num	GHE 34	Comp	AB	Coord arcsec 2000	11 07 57.96 -77 38 44.9
Date first	1994	Date last	2015	Obs	6
Pa first	80	Pa last	81.7	P.A. Now (θ)	81.7°
Sep first	17.6	Sep last	16.4	Sep. Now (ρ)	16.4"
Mag pri	7.20	Mag sec	9.20	delta mag (ΔM)	2	Spectral class	K7+M0.5 (yellow-orange/red)
Pri motion ra	-027	Sec motion ra	+061
Pri motion dec	+014	Sec motion dec	+080
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=1.093

This double is not physical.

11080-7739 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			11 07 58 -77 38 45	SDT 3 Aa,Ab	2008	2	272	0.5	14.20
Show			11 07 58 -77 38 45	GHE 34 AB	2015	6	82	16.4	7.20	9.20	2.00		<===
Show			11 08 03 -77 38 43	LAF 8 BC	2011	2	229	0.3	8.80	9.40	0.60

Quadruple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation

Chamaeleon

Gaia DR2

5201128880615881472

WDS 11080-7739 GHE 34 AB : NOTES

discov_num	notes	refcode
GHE 34	The primary is Sz 22, embedded in a circumstellar disk or reflection
	nebula. Schmidt et al. (2014) resolve the A component into a 0.5"
	pair; the Ab component is a co-moving M4.5 +/- 1.5 dwarf.	Sdt2013
LAF 8	BC: Daemen et al. (2013) derive the following component properties
	(units are K,Lsun,Myr,Msun,Rsun):
	B: SpT = M0.5 Teff = 3780 +- 400 L = 0.50 +- 0.09
	Age = 2.0 +8/-1.1 M = 0.52 +0.38/-0.19 R = 0.47 +- 0.05
	C: SpT = M0.5 Teff = 3780 +- 400 L = 0.090 +- 0.006
	Age > 23. M = 0.50 +- 0.2 R = 0.70 +- 0.07	Dae2013

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
Sdt2013	A j	Schmidt, T.O.B., Vogt, N., Neuhauser, R., Bedalov, A., & Roell, T.	2013A&A...557A..80S
Sdt2013		A&A 557, A80, 2013
Sdt2013		= South Dakota State University

DISCOVERER

idgroup	discov	author
1	GHE	Ghez, A.M., Neugebauer, G., Gorham, P.W., Haniff, C.A., Kulkarni, S.R., Matthews,
1	GHE	K., Koresko, C., & Beckwith, S.
14	GHE	Ghez, A.M., Duchene, G., Matthews, K., Hornstein, S.D., Tanner, A., Larkin, J.,
14	GHE	Morris, M., Becklin, E.E., et al.
15	GHE	Ghez, A.M., Salim, S., Hornstein,S.D., Tanner, A., Lu, J.R., Morris, M.,
15	GHE	Becklin, E.E., & Duchene, G.
16	GHE	Boehle, A., Ghez, A.M., Schodel, R., Meyer, L., Yelda, S., Albers, S.,
16	GHE	Martinez, G.D., Becklin, E.E., Do, T., Lu, J.R., Matthews, K., Morris, M., et al.
17	LAF	Lafreniere, D., Doyon, R., Marois, C., Nadeau, D., Oppenheimer, B.R., Roche, P.F.,
17	LAF	Rigaut, F., Graham, J.R., et al.
26	LAF	Lafreniere, D., Jayawardhana, R., Janson, M., Helling, C., Witte, S., &
26	LAF	Hauschildt, P.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
11080-7739	GHE 34	AB	2000	2	82	16.4	7.20	9.20	K7	N K	110757.96-773844.9
11080-7739	GHE 34	AB	2015	6	82	16.4	7.20	9.20	K7+M0.5	N K	110757.96-773844.9

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WDS 11080-7739 GHE 34 AB : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 11080-7739 GHE 34 AB : MEASURES

No records found.

WDS 11080-7739 : VIRTUAL EYEPIECE

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

WDS 11080-7739 : ALADIN DSS IMAGE @ 11^h 07^m 57.96^s -77° 38' 44.9"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 11080-7739 GHE 34 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		11080-7739	GHE 34	AB	82	16.4	1
Show		11080-7739	SDT 3	Aa,Ab	272	0.5	1
Show		11080-7739	LAF 8	BC	229	0.3	1
Show		11083-7739	NHR 4	AB	123	2.4	2
Show		11083-7739	NHR 4	AC	203	3.6	2
Show		11083-7739	NHR 4	AD	70	3.7	2
Show		11078-7740	NHR 3	AB	47	1.9	2
Show		11078-7740	NHR 3	AC	190	2.3	2
Show		11078-7740	NHR 3	AD	198	4.2	2
Show		11078-7740	NHR 3	AE	40	4.5	2
Show		11078-7740	NHR 3	AF	188	5.9	2
Show		11078-7740	NHR 3	AG	330	6.1	2
Show		11078-7740	NHR 3	AH	166	6.9	2
Show		11078-7740	NHR 3	AI	290	7.0	2
Show		11084-7740	NHR 5	AB	95	3.4	2
Show		11084-7740	NHR 5	AC	35	3.9	2
Show		11084-7740	NHR 5	AD	252	5.5	2
Show		11085-7739	NHR 7	AB	326	4.8	2
Show		11085-7739	KSA 50	AC	23	21.0	2
Show		11073-7738	REP 17	AB	202	4.6	3
Show		11073-7738	LAF 5	Ba,Bb	164	0.1	3
Show		11073-7738	SDT 2	Aa,Ab	234	0.2	3
Show		11084-7742	NHR 6	AB	223	1.4	4
Show		11084-7742	SDT 5	Aa,Ab	112	0.0	4
Show		11076-7735	KSA 45	BC	169	14.3	4
Show		11080-7742	GHE 35	AB	186	0.7	4
Show		11080-7742	GHE 35	AC	56	2.7	4
Show		11080-7742	SZR 1	AD	220	16.8	4
Show		11080-7742	BNK 1	Ba,Bb	231	0.1	4
Show		11076-7735	KSA 43	AB	169	28.1	5
Show		11070-7742	KSA 40		127	11.4	5
Show		11077-7734	AHM 2		40	0.2	5
Show		11065-7738	LUH 17		235	1.3	5
Show		11083-7734	GHE 27	AB	284	2.5	5
Show		11083-7734	SDT 4	Ba,Bb	88	0.2	5
Show		11076-7734	LAF 6	AB	35	1.4	6
Show		11076-7734	KSA 44	AC	5	24.6	6
Show		11063-7738	KSA 38		108	23.4	6
Show		11072-7744	KSA 41		302	10.6	6
Show		11098-7738	GHE 29		53	0.7	7
Show		11089-7732	KSA 51		19	20.8	8
Show		11076-7747	KSA 46		182	22.9	9
Show		11098-7731	PSI 3	BC	130	1.6	10
Show		11098-7731	PSI 3	BD	321	1.4	10
Show		11098-7731	PSI 3	AB	226	2.3	10
Show		11098-7731	PSI 3	AE	313	18.6	10
Show		11098-7731	PSI 3	EF	295	1.1	10
Show		11092-7729	REP 20	AB	19	1.3	11
Show		11092-7729	REP 20	AC	70	4.5	11
Show		11092-7729	REP 20	BC	85	3.9	11
Show		11106-7733	GHE 36	Aa,Ab	318	0.1	11

WDS 11080-7739 : COMPONENTS

	A	Ab	B
Ab	pa=277.0° sep=0.11"
B	pa=81.9° sep=16.27"	pa=82.0° sep=16.38"
C	pa=82.5° sep=16.20"	pa=82.6° sep=16.31"	pa=193.7° sep=0.19"

11080-7739 A

Coord arcsec 2000	110757.96-773844.9		Mag	7.2		Spectral class	K7 (yellow-orange)		PmRA	-27.00
PmDE	14.0

11080-7739 Ab

Coord arcsec 2000

110757.93-773844.9

Spectral class

M4.5 (red)

Calc delta mag

14.2

Calc coord

yes

11080-7739 B

Coord arcsec 2000	110802.98-773842.6		Coord calc	110802.98-773842.6		Mag	8.8		Spectral class	M0.5 (red)
PmRA	61.00		PmDE	80.0		Calc delta mag	5.4

11080-7739 C

Coord arcsec 2000	110802.97-773842.8		Mag	9.4		Spectral class	M0.5 (red)		Calc delta mag	4.8
Calc coord	yes