15415-2521 LAF 80

15^h 41^m 31.20^s -25° 20' 36.3" P.A. 242.00 sep 3.7 mag 7.24,18.74 Sp G8e

Coord 2000	15415-2521	Discov num	LAF 80	Comp		Coord arcsec 2000	15 41 31.20 -25 20 36.3
Date first	2008	Date last	2008	Obs	1
Pa first	242	Pa last	242.4	P.A. Now (θ)	242.4°
Sep first	3.7	Sep last	3.743	Sep. Now (ρ)	3.743"
Mag pri	7.24	Mag sec	18.74	delta mag (ΔM)	11.5	Spectral class	G8e (yellow)
Pri motion ra	-018	Sec motion ra
Pri motion dec	-027	Sec motion dec
Notes	U K (Proper motion indicates non-physical, 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 not physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Libra

Gaia DR2

6238094097954087808

WDS 15415-2521 LAF 80 : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Laf2007	A j	Lafreniere, D., Doyon, R., Marois, C., Nadeau, D., Oppenheimer, B.R., Roche, P.F.,	2007ApJ...670.1367L
Laf2007	+C	Rigaut, F., Graham, J.R., et al.
Laf2007		ApJ 670, 1367, 2007
Laf2008	A j	Lafreniere, D., Jayawardhana, R., Brandeker, A., Ahmic, M., & van Kerkwijk, M.H.	2008ApJ...683..844L
Laf2008	+Hp	ApJ 683, 844, 2008
Laf2008b	A j	Lafreniere, D., Jayawardhana, R., & van Kerkwijk, M.H.	2008ApJ...689L.153L
Laf2008b		ApJ 689, L153, 2008
Laf2009	Hn u	Lafreniere, D., Marois, C., Doyon, R., & Barman, T.	2009ApJ...694L.148L
Laf2009		ApJ 694, L148, 2009
Laf2010	A u	Lafreniere, D., Jayawardhana, R., & van Kerkwijk, M.H.	2010ApJ...719..497L
Laf2010		ApJ 719, 497, 2010
Laf2011	A u	Lafreniere, D., Jayawardhana, R., Janson, M., Helling, C., Witte, S., &	2011ApJ...730...42L
Laf2011		Hauschildt, P.
Laf2011		ApJ 730, 42, 2011
Laf2011		(photometry of both components based on 2MASS PSC plus their contrast measures)
Laf2014	A j	Lafreniere, D., Jayawardhana, R., van Kerkwijk, M.H., Brandeker, A., & Janson, M.	2014ApJ...785...47L
Laf2014	+Al	ApJ 785, 47, 2014

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
15415-2521	LAF 80		2008	1	242	3.7	7.24	18.74	G8e	U K	154131.20-252036.3

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WDS 15415-2521 LAF 80 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 15415-2521 LAF 80 : MEASURES

No records found.

WDS 15415-2521 : VIRTUAL EYEPIECE

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

WDS 15415-2521 : ALADIN DSS IMAGE @ 15^h 41^m 31.20^s -25° 20' 36.3"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 15415-2521 LAF 80 : 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		15415-2521	LAF 80		242	3.7	1
Show		15432-2525	BU 354		291	5.9	24
Show		15442-2523	LAF 81		53	9.2	37
Show		15412-2603	J 3235		337	10.7	44
Show		15439-2451	UC 3052	AB	316	56.4	44
Show		15418-2607	J 1614		342	10.4	47
Show		15433-2439	OCC 208		-1	0.1	48
Show		15452-2513	USD 27		208	2.1	51
Show		15377-2539	RST2971		60	0.2	56
Show		15429-2613	B 297	AB	256	7.7	56
Show		15384-2439	HDS2207		82	0.7	60
Show		15462-2547	UC 3059		304	24.9	69
Show		15377-2432	TDS9564		103	0.4	71
Show		15468-2515	USD 33	Ca,Cb	119	0.8	73
Show		15471-2520	UC 3064	BC	161	9.9	76
Show		15471-2520	UC 3064	AB	306	13.6	76
Show		15471-2520	UC 3064	AC	265	11.4	76
Show		15378-2622	RST2972		227	1.1	80
Show		15353-2544	LAF 77	AB	169	5.6	88
Show		15353-2544	LAF 77	AC	350	7.8	88
Show		15353-2544	LAF 77	AD	141	7.8	88
Show		15351-2506	OCC9019		81	0.0	89
Show		15481-2513	HDS2226		60	0.1	89
Show		15371-2630	HDS2200		106	0.2	92
Show		15401-2349	UC 3038		282	7.7	94
Show		15411-2656	KSA 72	AB	82	6.3	96
Show		15411-2656	MET 64	AC	225	5.9	96
Show		15411-2656	LAF 79	AD	298	4.6	96
Show		15411-2656	LAF 79	AE	30	5.2	96
Show		15411-2656	LAF 79	AF	311	6.0	96
Show		15411-2656	LAF 79	AG	353	8.0	96
Show		15411-2656	LAF 79	AH	110	9.6	96
Show		15397-2343	B 2789		338	14.0	101
Show		15494-2600	KOH 50	AB	116	0.1	113
Show		15394-2710	RST1854	AB	3	0.3	114
Show		15394-2710	MET 63	AC	62	8.8	114
Show		15394-2710	MET 63	AD	124	11.2	114
Show		15372-2339	SEE 241		23	0.9	118
Show		15347-2641	RST1846		109	0.2	123
Show		15450-2714	RST1861		115	0.4	123
Show		15332-2429	CHR 232	Aa,Ab	207	0.1	125
Show		15332-2429	LAL 123	AB	302	9.3	125
Show		15332-2429	SEE 238	Ba,Bb	144	0.3	125
Show		15444-2320	HU 1516		254	1.4	127
Show		15509-2534	KSA 116	AB	329	0.1	129
Show		15510-2503	B 2792		63	13.0	130
Show		15315-2524	UC 3021		295	84.5	136
Show		15500-2636	SWR 182		256	25.0	137
Show		15360-2324	KSA 114	AB	174	0.1	140
Show		15360-2324	LAF 78	AC	76	3.3	140
Show		15360-2324	LAF 78	AD	315	4.2	140

WDS 15415-2521 : COMPONENTS

	A
B	pa=240.0° sep=3.46"

15415-2521 A

Componente originario normalizzato	AB		Coord arcsec 2000	154131.20-252036.3		Mag	7.24		Spectral class	G8e (yellow)
PmRA	-18.00		PmDE	-27.0

15415-2521 B

Componente originario normalizzato	AB		Coord arcsec 2000	154130.98-252038.0		Mag	18.74		Calc delta mag	11.5
Calc coord	yes