02578-2317 ARA 1971

02^h 57^m 42.63^s -23° 16' 50.3" P.A. 93.00 sep 17.3 mag 9.89,13.10 Sp G8III/IV:

Coord 2000	02578-2317	Discov num	ARA1971	Comp		Coord arcsec 2000	02 57 42.63 -23 16 50.3
Date first	1921	Date last	2015	Obs	7
Pa first	94	Pa last	93.3	P.A. Now (θ)	93.3°
Sep first	10.9	Sep last	17.29	Sep. Now (ρ)	17.29"
Mag pri	9.89	Mag sec	13.10	delta mag (ΔM)	3.21	Spectral class	G8III/IV: (yellow)
Pri motion ra	+002	Sec motion ra	-050
Pri motion dec	-002	Sec motion dec	-022
Notes

rPM=1.02

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation	Eridanus		SAO	168185		Tycho2	6437-00818-1		Gaia DR2	5078148298891002368
HD	18486		DM	CD-23 1144

WDS 02578-2317 ARA 1971 : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Ara1961	Pa -	Aravamudan, S.	1961PASP...73..266A
Ara1961		PASP 73, 266, 1961
Ara1963	Pa -	Aravamudan, S.	.
Ara1963		Pub. Nizamiah Obs. 13, Pt.3, 1963

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
02578-2317	ARA1971		1921	1	94	10.9	9.89	12.70			025742.63-231650.3
02578-2317	ARA1971		2004	3	93	16.6	9.89	12.70			025742.63-231650.3
02578-2317	ARA1971		2013	5	93	16.7	9.89	13.10			025742.63-231650.3
02578-2317	ARA1971		2015	7	93	17.3	9.89	13.10	G8III/IV:		025742.63-231650.3

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

WDS 02578-2317 ARA 1971 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 02578-2317 ARA 1971 : MEASURES

No records found.

WDS 02578-2317 : VIRTUAL EYEPIECE

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WDS 02578-2317 : ALADIN DSS IMAGE @ 02^h 57^m 42.63^s -23° 16' 50.3"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 02578-2317 ARA 1971 : 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		02578-2317	ARA1971		93	17.3	1
Show		02573-2323	I 149		259	6.1	9
Show		02586-2322	UC 922		209	12.8	14
Show		03020-2309	TDS2417	AB	33	1.6	60
Show		02566-2219	NSN 242	CD	273	4.4	61
Show		02528-2330	I 717		295	2.2	70
Show		03029-2333	I 718		346	0.7	74
Show		02592-2429	KPP1122		201	8.8	75
Show		03031-2339	DAM1296		85	0.1	78
Show		02563-2441	TDS2395		1	0.5	87
Show		03001-2157	DVG 15		156	12.3	87
Show		03008-2438	B 42	AB	192	12.6	92
Show		03008-2438	B 42	BC	267	3.2	93
Show		03048-2255	UC 942		10	8.4	101
Show		02572-2458	BU 741	AB	6	0.2	102
Show		02572-2458	S 423	AB,C	226	29.2	102
Show		02572-2458	BEU 4	Ca,Cb	274	0.0	102
Show		02572-2458	HDS 379	CD	173	5.1	102
Show		02513-2226	LDS3433		73	15.7	103
Show		02502-2323	RST2289		300	0.3	105
Show		03051-2345	ARA2292		209	12.9	106
Show		03019-2447	B 43		219	2.3	107
Show		03049-2400	UC 943		217	9.2	108
Show		03056-2328	RST2294	AB	316	0.6	110
Show		03056-2328	RST2294	AC	319	1.9	110
Show		03022-2145	I 462		107	0.8	112
Show		02561-2509	RST2290		99	1.7	114
Show		03017-2136	RST2291		129	1.3	116
Show		02554-2513	HDS 375		28	0.4	121
Show		02596-2516	LDS3446		288	176.0	123
Show		02501-2210	DON 42		187	1.3	125
Show		02514-2139	DON 43		287	0.2	132
Show		02498-2434	BU 877	AB	145	12.1	133
Show		02498-2434	HJ 2161	AC	129	37.3	133
Show		02498-2434	FOX9021	AD	290	52.3	133
Show		02518-2503	B 41		220	2.7	135
Show		02546-2109	KPP1712		96	13.2	135
Show		02482-2232	RST2288		47	1.2	139
Show		03038-2122	HJ 3548		125	12.2	143
Show		02512-2125	I 461		330	3.2	144
Show		02474-2341	HU 1561		320	1.1	145
Show		02518-2117	SEE 21		323	0.1	146
Show		02472-2229	SKF2167	AB	213	69.4	154
Show		02472-2229	CVN 71	AC	347	1.7	154
Show		03084-2410	LDS 87		218	25.0	157
Show		02464-2250	SKF2166		272	29.5	158
Show		03059-2509	B 44		54	0.3	159
Show		03036-2536	BRG 17	AB	357	0.9	161
Show		03076-2446	RST2296		40	1.1	163
Show		02552-2557	TDS2386		227	1.9	164
Show	Angetenar	02510-2100	SEE 20		127	49.6	166

WDS 02578-2317 : COMPONENTS

	A
B	pa=93.6° sep=15.89"

02578-2317 A

Componente originario normalizzato	AB	Coord arcsec 2000	025742.63-231650.3	Mag	9.89	Spectral class	G8III/IV: (yellow)
PmRA	2.00	PmDE	-2.0	SAO	168185	Tycho2	6437-00818-1
HD	18486	DM	CD-23 1144

Tycho2

Tycho2	6437-00818-1	Pflag		RAmdeg	44.42766555	DEmdeg	-23.28066048
PmRA	0.7	PmDE	-2.6	E RAmdeg	22	E DEmdeg	19
E pmRA	1.9	E pmDE	1.7	EpRAm	1987.38	EpDEm	1986.46
Num	7	Q RAmdeg	0.9	Q DEmdeg	0.6	Q pmRA	0.9
Q pmDE	0.6	BTmag	11.273	E BTmag	0.061	VTmag	9.887
E VTmag	0.029	Prox	890	TYC	T	HIP
CCDM		RAdeg	44.42766667	DEdeg	-23.28065472	EpRA 1990	1.62
EpDE 1990	1.62	E RAdeg	23.8	E DEdeg	22.4	Posflg
Corr	0.1

SAO

SAO	168185	DelFlag		RA1950		PmRA1950	-0.0007
DE1950		PmDE1950	0	Vmag	9.4	SpType	K0
Double code		Source	25	CatNum	1370	DM	CD-23 1144
DMcomp		BDsup		HD	18486	M HD	0
GC		RA1950rad	0.76568924	DE1950rad	-0.4098109	PmRA2000	-0.0004
PmDE2000	-0.003

02578-2317 B

Componente originario normalizzato	AB		Coord arcsec 2000	025743.78-231651.3		Mag	13.1		PmRA	-50.00
PmDE	-22.0		Calc delta mag	3.21		Calc coord	yes