22522-1730 RED 12

22^h 52^m 10.73^s -17° 30' 13.4" P.A. 358.00 sep 0.1 mag 15.43,16.55 Sp L6+T3.5

Coord 2000	22522-1730	Discov num	RED 12	Comp		Coord arcsec 2000	22 52 10.73 -17 30 13.4
Date first	2005	Date last	2013	Obs	13
Pa first	354	Pa last	358.2	P.A. Now (θ)	354.5°
Sep first	0.1	Sep last	0.142	Sep. Now (ρ)	0.132"
Mag pri	15.43	Mag sec	16.55	delta mag (ΔM)	1.12	Spectral class	L6+T3.5 (very deep red/brown dwarf)
Pri motion ra	+405	Sec motion ra
Pri motion dec	+154	Sec motion dec
Notes	N O K (See Notes, Orbital solution, 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

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Aquarius

ORBITAL ELEMENTS

Period (P)	8.832y	± 0.027	Periastron (T)	60727d (2025.141y)	± 23	Semi-major axis (a)	123.2m	± 0.8
Eccentricity (e)	0.335	± 0.009	Inclination (i)	108.8°	± 0.5	Longitude of periastron (ω)	314.6°	± 1.2
Node (Ω)	178°	± 0.3	Notes	n		Reference	Dup2017
Equinox			Last observation	2013		Grade	3	(1=Definitive, 9=Indet.)

label	theta	rho
2000	158.3	0.079
2001	103.2	0.046
2002	37.9	0.074
2003	16.9	0.119
2004	6.4	0.146
2005	357.8	0.143
2006	345.0	0.096
2007	253.3	0.029
2008	178.7	0.088
2009	152.9	0.073
2010	88.3	0.046
2011	32.7	0.082
2012	14.8	0.125
2013	5.0	0.148
2014	356.2	0.138
2015	341.1	0.084
2016	222.4	0.037
2017	174.7	0.091
2018	146.4	0.066
2019	74.2	0.049
2020	28.4	0.090
2021	12.9	0.131
2022	3.6	0.149
2023	354.5	0.132
2024	335.7	0.070
2025	204.9	0.050
2026	170.9	0.091
2027	138.4	0.060
2028	61.9	0.053
2029	24.8	0.098
2030	11.1	0.136

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.

Measures: green=micrometric, blue=interferometric, purple=photographic

WDS 22522-1730 RED 12 : NOTES

discov_num	notes	refcode
RED 12	2MASS J22521073-1730134
	A component spectral type probably L6 +/- 1, B component T2/T3; masses
	are about 0.07 and 0.06 Msun. Estimated distance is 13.6 pc.	Red2006a

REFERENCES

refcode	metd	author	reference
Dup2017	A j	Dupuy, T.J. & Liu, M.C.	2017ApJS..231...15D
Dup2017	+orb	ApJS 231, 15, 2017
Red2006a	Hn j	Reid, I.N., Lewitus, E., Burgasser, A.J., & Cruz, K.L.	2006ApJ...639.1114R
Red2006a		ApJ 639, 1114, 2006

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
22522-1730	RED 12		2005	1	350	0.1	15.43	16.55	L6+T2	N DK	225210.73-173013.4
22522-1730	RED 12		2013	11	358	0.1	15.43	16.55	L6+T3.5	N K	225210.73-173013.4

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WDS 22522-1730 RED 12 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 22522-1730 RED 12 : MEASURES

No records found.

WDS 22522-1730 : VIRTUAL EYEPIECE

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WDS 22522-1730 : ALADIN DSS IMAGE @ 22^h 52^m 10.73^s -17° 30' 13.4"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 22522-1730 RED 12 : 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		22522-1730	RED 12		358	0.1	1
Show		22512-1742	KPP 619		225	5.7	19
Show		22533-1710	RST3309		316	1.0	26
Show		22504-1744	DON1038		67	0.4	30
Show		22535-1704	GWP3203		183	21.3	32
Show		22512-1811	GWP3201		82	20.3	43
Show		22492-1740	LDS5001		25	4.2	45
Show		22538-1628	UC 4844	AB	92	27.3	66
Show		22538-1628	GWP3205	AC	294	18.3	66
Show		22561-1641	GWP3212		72	28.3	75
Show		22487-5935	TOI 342		227	0.4	79
Show		22587-1735	LDS5031		32	20.8	94
Show		22592-1736	LEO 30		157	1.5	101
Show		22473-1609	HU 291		326	2.7	108
Show		22549-1919	HDS3258		159	0.2	116
Show		22492-1541	RST4112		112	0.6	118
Show		22521-1533	LDT 20		252	0.7	118
Show		22535-1926	CVR1711		357	4.2	118
Show		22471-1552	GWP3196		134	12.3	123
Show		23009-1734	UC 4867		120	8.8	126
Show		22487-1534	HJ 3145		196	15.2	127
Show		22598-1624	TOK 374		287	0.2	128
Show		22528-1519	GWP3202		182	128.8	132
Show		22470-1919	HDO 172		83	22.1	132
Show		22570-1925	ARA 816		214	5.5	135
Show		23001-1616	ARA 134		163	8.9	136
Show		22429-1656	RST3308		137	0.9	137
Show		22527-1513	HJ 3148		140	29.7	138
Show		22449-1903	UC 4806		57	29.0	139
Show		22527-1509	DAM 249	AB	8	12.9	142
Show		22527-1509	DAM 249	AC	244	14.6	142
Show		22460-1536	HU 290		353	17.5	146
Show		22435-1608	HU 289		280	1.3	149
Show		22417-1742	DON1036		282	0.6	151
Show		22574-1944	BRT1573		301	4.1	152
Show		22446-1918	TDT3685		224	7.2	152
Show		22526-2004	UC 4838		90	50.4	155
Show		23029-1719	RST3317		130	5.8	155
Show		22419-1823	GWP3184		23	45.7	157
Show		23026-1832	BU 384		59	1.1	162
Show		22579-1950	UC 4852		106	54.0	162
Show		22577-1953	BRT1574		359	4.1	163
Show		23017-1910	ZIE 17		29	4.5	168
Show		22412-1625	TOK 905		65	4.5	171
Show		22492-2016	I 141		322	3.0	171
Show		22526-1437	SKF2824		251	6.5	174
Show		22558-2018	ARA1243		271	10.1	176
Show		23032-1612	FEN 42		278	4.2	176
Show		22567-1444	LDS5022		251	2.3	179
Show		23004-1951	ARA1246		187	6.4	184
Show		22489-2029	HDS3239		199	0.3	185

WDS 22522-1730 : COMPONENTS

	A
B	pa=358.3° sep=0.14"

22522-1730 A

Componente originario normalizzato	AB		Coord arcsec 2000	225210.73-173013.4		Mag	15.43		Spectral class	L6 (very deep red)
PmRA	405.00		PmDE	154.0

22522-1730 B

Componente originario normalizzato	AB		Coord arcsec 2000	225210.73-173013.3		Mag	16.55		Spectral class	T3.5 (brown dwarf)
Calc delta mag	1.12		Calc coord	yes