21310+2320 LAF 65 AB

21^h 31^m 01.62^s +23° 20' 08.6" P.A. 320.00 sep 9.2 mag 6.50,18.80 Sp K5-7V

Coord 2000	21310+2320	Discov num	LAF 65	Comp	AB	Coord arcsec 2000	21 31 01.62 +23 20 08.6
Date first	2004	Date last	2004	Obs	1
Pa first	320	Pa last	319.9	P.A. Now (θ)	319.9°
Sep first	9.2	Sep last	9.16	Sep. Now (ρ)	9.16"
Mag pri	6.50	Mag sec	18.80	delta mag (ΔM)	12.3	Spectral class	K5-7V (yellow-orange)
Pri motion ra	+133	Sec motion ra
Pri motion dec	-145	Sec motion dec
Notes	K (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.

21310+2320 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			21 31 02 +23 20 09	LAF 65 AB	2004	1	320	9.2	6.50	18.80	12.30		<===
Show			21 31 02 +23 20 09	LAF 65 AC	2004	1	178	11.8	6.50	17.10	10.60

Triple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation

Pegasus

Gaia DR2

1797276382668029440

WDS 21310+2320 LAF 65 AB : 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
21310+2320	LAF 65	AB	2004	1	320	9.2	9.24	21.00	K5-7V	D	213101.71+232007.4

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

WDS 21310+2320 LAF 65 AB : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21310+2320 LAF 65 AB : MEASURES

No records found.

WDS 21310+2320 : VIRTUAL EYEPIECE

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

WDS 21310+2320 : ALADIN DSS IMAGE @ 21^h 31^m 01.62^s +23° 20' 08.6"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21310+2320 LAF 65 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		21310+2320	LAF 65	AB	320	9.2	1
Show		21310+2320	LAF 65	AC	178	11.8	1
Show		21314+2341	POU5394		76	13.3	22
Show		21307+2258	COU 134		13	1.5	24
Show		21299+2338	BU 685		325	30.4	24
Show		21293+2311	J 1896		109	7.1	25
Show		21326+2339	POU5403		129	5.2	29
Show		21288+2317	J 1895		112	6.5	31
Show		21309+2352	POU5392		195	7.8	32
Show		21326+2345	POU5404		129	11.3	33
Show		21299+2353	J 612		281	2.5	37
Show		21323+2356	POU5400		131	18.1	40
Show		21300+2359	POU5388		192	10.9	42
Show		21279+2330	POU5375		94	13.1	44
Show		21298+2400	POU5386		185	16.5	45
Show		21317+2404	POU5398		245	16.5	46
Show		21306+2406	POU5391		150	15.2	47
Show		21323+2408	POU5402		110	5.5	52
Show		21338+2356	POU5409		334	10.6	53
Show		21330+2408	HDS3065	Aa,Ab	95	0.2	55
Show		21330+2408	OSO 149	AB	285	24.6	55
Show		21330+2408	OSO 149	AC	66	12.0	55
Show		21332+2406	UC 4496		214	16.5	55
Show		21273+2344	POU5373		249	7.5	57
Show		21351+2330	TDT3043		62	0.7	58
Show		21283+2405	POU5378		121	12.5	59
Show		21351+2340	POU5418		198	6.4	60
Show		21295+2421	POU5384		141	15.4	65
Show		21343+2406	POU5411		200	8.5	65
Show		21280+2411	POU5376	AB	42	15.4	66
Show		21280+2411	POU5377	AC	250	14.5	66
Show		21358+2331	POU5426		315	14.2	67
Show		21274+2406	POU5374		347	14.7	69
Show		21352+2358	POU5420		221	15.1	69
Show		21260+2316	GRV 466		318	40.0	70
Show		21271+2405	POU5372		95	3.4	70
Show		21342+2416	POU5410		251	13.5	72
Show		21322+2430	BKO 486		350	8.5	72
Show		21285+2425	POU5381		328	14.2	74
Show		21323+2433	POU5399	AB	82	3.8	75
Show		21323+2433	BKO 487	AC	11	9.1	75
Show		21290+2211	HJ 1647	AB	178	41.5	75
Show		21290+2211	HJ 1647	AC	128	38.8	75
Show		21283+2215	J 3140		223	5.9	76
Show		21324+2434	MCT 12		237	1.6	76
Show		21356+2403	POU5423		40	3.4	77
Show		21286+2211	BRT2496	AB	236	4.6	77
Show		21286+2211	FYM 288	AC	60	15.2	77
Show		21322+2437	BKO 485		141	10.1	79
Show		21323+2439	POU5401			18.7	81
Show		21268+2420	POU5371		170	6.0	84

WDS 21310+2320 : COMPONENTS

	A	B
B	pa=322.3° sep=8.86"
C	pa=177.8° sep=11.76"	pa=162.6° sep=19.65"

21310+2320 A

Coord arcsec 2000	213101.62+232008.6		Mag	6.5		Spectral class	K5 (yellow-orange)		PmRA	133.00
PmDE	-145.0

21310+2320 B

Coord arcsec 2000	213101.23+232015.6		Mag	18.8		Spectral class	7V		Calc delta mag	12.3
Calc coord	yes

21310+2320 C

Coord arcsec 2000	213101.65+231956.9		Mag	17.1		Spectral class	7V		Calc delta mag	10.6
Calc coord	yes