04309-0849 KO 2

04^h 30^m 52.03^s -08° 49' 19.5" P.A. 340.00 sep 19.8 mag 13.87,20.60

Coord 2000	04309-0849	Discov num	KO 2	Comp		Coord arcsec 2000	04 30 52.03 -08 49 19.5
Date first	1953	Date last	2015	Obs	12
Pa first	341	Pa last	339.8	P.A. Now (θ)	339.8°
Sep first	19.5	Sep last	19.806	Sep. Now (ρ)	19.806"
Mag pri	13.87	Mag sec	20.60	delta mag (ΔM)	6.73	Spectral class
Pri motion ra	+004	Sec motion ra	-002
Pri motion dec	-164	Sec motion dec	-158
Notes	N V (See Notes, Proper motion indicates physical)

rPM=0.052 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Eridanus

Gaia DR2

3197623222256888192

WDS 04309-0849 KO 2 : NOTES

discov_num	notes	refcode
KO 2	CPM pair; A = LP 655-23 (spec early M), B = 2MASS J0430516-084901
	(M8.0V). Mean separation (1953-2000) 0.328 +/- 0.004 arcmin. Data
	sources: Palomar Sky Survey red (1953.2), UK Schmidt blue (1982.8), UK
	Schmidt red (1985.9), 2MASS (1998.7), DENIS I (1998.9), UK Schmidt
	near-IR (2000.0). Masses of components estimated at 0.26 +/- 0.04 and
	0.086 +/- 0.004 Msun.	Cab2007b
	A known component of the wide binary Konigstuhl 2AB with a separation
	of 20" (Caballero 2007), 2MASS J04305203-0849193 is single closer in,	Cab2007b
	in the AstraLux images.	Jnn2012

REFERENCES

refcode	metd	author	reference
Cab2007b	Pa j	Caballero, J.A.	2007ApJ...667..520C
Cab2007b	+E+	ApJ 667, 520, 2007
Cab2007b	+Hi	(individual measures via private communication. Uses discoverer designation KO)
Jnn2012	Cl j	Janson, M., Hormuth, F., Bergfors, C., Brandner, W., Hippler, S., Daemgen, S.,	2012ApJ...754...44J
Jnn2012	+E2	Kudryavtseva, N., Schmalzl, E., Schnupp, C., & Henning, T.
Jnn2012		ApJ 754, 44, 2012 (some recalibrated measures published in Jnn2014b)	2014ApJS..214...17J

DISCOVERER

idgroup	discov	author
1	KO	Koenigstuhl (Max Planck Institute) (see papers by Caballero)

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
04309-0849	KO 2		2000	6	340	19.4	13.87	20.60		N	043052.03-084919.5
04309-0849	KO 2		2010	7	340	19.8	13.87	20.60		NV	043052.03-084919.5
04309-0849	KO 2		2015	9	340	19.8	13.87	20.60		NV	043052.03-084919.5

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

WDS 04309-0849 KO 2 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 04309-0849 KO 2 : MEASURES

No records found.

WDS 04309-0849 : VIRTUAL EYEPIECE

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WDS 04309-0849 : ALADIN DSS IMAGE @ 04^h 30^m 52.03^s -08° 49' 19.5"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 04309-0849 KO 2 : 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		04309-0849	KO 2		340	19.8
Show		04307-0858	KPP1360		340	10.2	9
Show		04319-0851	HJ 2234		270	40.7	17
Show		04314-0934	GAL 372		199	34.4	47
Show		04322-0936	GAL 141		336	7.3	52
Show		04298-0949	LDS3592		247	39.2	62
Show		04276-0933	A 474		176	0.7	65
Show		04335-0750	TOK 248		314	281.2	71
Show		04338-0954	UC 1185		206	37.6	79
Show		04284-0736	GRV1248		229	6.1	82
Show		04312-0726	HJ 24		72	24.1	84
Show		04352-0944	STF 570		260	12.8	85
Show		04247-0845	STF 544	AB	352	3.3	92
Show		04247-0845	FOX 138	AC	77	151.4	92
Show		04253-0932	GAL 368		307	22.5	92
Show		04334-1014	RST3399		359	3.0	93
Show		04332-0724	GWP 597		122	43.2	93
Show		04328-1028	GWP 595		205	58.8	103
Show		04327-0707	BRT 367		123	4.0	105
Show		04383-0856	RST4248	AB	129	0.3	110
Show		04383-0856	HLN 7	AB,C	165	8.4	110
Show		04281-1033	GAL 370		174	20.2	111
Show		04297-1043	GAL 134		210	14.6	115
Show		04374-0951	RST3401		244	0.4	116
Show		04386-0921	TOK 387		244	0.0	119
Show		04264-1033	TOK 485		69	999.9	123
Show		04334-1047	HDS 592		91	0.6	124
Show		04307-0642	A 475		304	2.1	128
Show		04393-0813	RST4251	AB	52	0.2	131
Show		04393-0813	TDS2925	AC	326	0.5	131
Show		04233-0742	HO 331		350	15.8	131
Show		04382-0736	CVR 52		196	53.1	132
Show		04339-0644	BU 881		66	1.3	133
Show		04256-0651	LDS 842		280	3.0	141
Show		04406-0912	WOR 17		194	2.0	145
Show		04211-0851	A 472		261	3.2	146
Show		04278-1107	HDS 572		182	0.0	146
Show		04221-0957	STF 537		353	18.9	147
Show		04261-1059	GAL 369		330	26.1	148
Show		04211-0915	KPP1990		171	15.7	148
Show		04212-0933	RST4237		332	1.6	150
Show		04410-0840	RST4252		71	1.1	151
Show		04217-1001	UC 1153		293	12.8	154
Show		04398-1010	BVD 72		123	25.1	155
Show		04233-0700	TDS2840		196	0.7	157
Show		04202-0902	SKF 423		300	18.2	159
Show		04339-0615	RST4244		117	1.5	161
Show		04245-0632	GWP 581		47	95.1	167
Show		04239-1102	GAL 367		124	14.6	167
Show		04286-1134	TDS2862		316	0.5	168
Show		04423-0838	RST4253		229	0.7	171

WDS 04309-0849 : COMPONENTS

	A
B	pa=340.0° sep=19.78"

04309-0849 A

Componente originario normalizzato	AB		Coord arcsec 2000	043052.03-084919.5		Mag	13.87		PmRA	4.00
PmDE	-164.0

04309-0849 B

Componente originario normalizzato	AB		Coord arcsec 2000	043051.57-084900.9		Mag	20.6		PmRA	-2.00
PmDE	-158.0		Calc delta mag	6.73		Calc coord	yes