04561-0354 HDS 639 (HD 31468)

04^h 56^m 04.11^s -03° 54' 12.5" P.A. 118.00 sep 0.6 mag 8.54,10.94 Sp K2 dist. 900.9 pc (2938.74 l.y.)

Coord 2000	04561-0354	Discov num	HDS 639	Comp		Coord arcsec 2000	04 56 04.11 -03 54 12.5
Date first	1991	Date last	2021	Obs	2
Pa first	117	Pa last	117.8	P.A. Now (θ)	117.8°
Sep first	0.6	Sep last	0.623	Sep. Now (ρ)	0.623"
Mag pri	8.54	Mag sec	10.94	delta mag (ΔM)	2.4	Spectral class	K2 (yellow-orange)
Pri motion ra	-003	Sec motion ra
Pri motion dec	+006	Sec motion dec
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 31468	Constellation	Eridanus	SAO	131610	HIP	22929
Tycho2	4745-00053-1	Gaia DR2	3224728967019579136	HD	31468	BD	BD-04 978
Distance	900.9	Distance ly	2938.74

WDS 04561-0354 HDS 639 (HD 31468) : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
HDS		Hipparcos Double Star (from additional DD list)	...................

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
04561-0354	HDS 639		1991	1	117	0.6	8.47	11.45	K2	D	045604.11-035412.5
04561-0354	HDS 639		2021	2	118	0.6	8.54	10.94	K2		045604.11-035412.5

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WDS 04561-0354 HDS 639 (HD 31468) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 04561-0354 HDS 639 (HD 31468) : MEASURES

No records found.

WDS 04561-0354 (HD 31468) : VIRTUAL EYEPIECE

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WDS 04561-0354 (HD 31468) : ALADIN DSS IMAGE @ 04^h 56^m 04.11^s -03° 54' 12.5"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 04561-0354 HDS 639 (HD 31468) : 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		04561-0354	HDS 639		118	0.6	1
Show		04558-0344	RST4258	AB	66	2.1	12
Show		04558-0344	UC 1234	AC	296	33.7	12
Show		04553-0352	RST4257	AB	42	0.1	13
Show		04553-0352	HJ 352	AB,C	345	52.1	13
Show		04553-0352	HJ 352	CD	161	15.8	13
Show		04562-0331	HDS 640		170	0.2	23
Show		04575-0335	RST4261		96	1.4	29
Show		04569-0422	KPP 116		87	3.6	31
Show		04584-0344	HDS 644		178	0.7	37
Show		04577-0316	CVR 454		39	16.2	46
Show		04587-0330	UC 1246		176	10.4	46
Show		04545-0314	RST5501		144	0.1	48
Show		04549-0303	J 712		172	2.4	55
Show		04553-0450	HJ 2243		149	5.8	58
Show		04547-0257	J 1348		94	4.9	60
Show		04581-0447	RST4262		24	0.3	61
Show		05000-0333	JNN 29		40	0.1	63
Show		04536-0302	J 711		175	3.0	65
Show		04542-0452	SLW 174		140	129.0	65
Show		04582-0452	SLW 175		240	168.4	66
Show		05005-0356	TDS3037		89	0.6	67
Show		04569-0243	UC 1240		341	40.0	73
Show		04564-0510	HDS 641	Aa,Ab	65	0.4	77
Show		04564-0510	SHJ 48	AB	76	66.1	77
Show		04564-0510	GMC 11	AC	331	127.1	77
Show		05011-0408	RST4264	AB	167	3.4	77
Show		05001-0255	SLW 176		285	9.0	85
Show		04544-0233	TVB 80		321	20.7	85
Show		05013-0431	LDS3634		253	2.8	88
Show		04516-0258	UC 1224		178	12.6	88
Show		04502-0413	SLW 172		288	12.7	91
Show		04504-0430	KPP1170		169	9.1	93
Show		05022-0408	CVS 267		329	0.3	95
Show		04498-0347	GWP 618		276	27.9	95
Show		04528-0517	BU 316		2	0.7	97
Show		04578-0219	LDS3629		266	167.2	100
Show		04532-0528	SLW 173		148	158.9	103
Show		04582-0213	HJ 689		277	20.9	107
Show		04516-0520	ALD 26		104	2.2	109
Show		04560-0544	UC 1235		250	15.3	110
Show		04522-0221	BAL 31		66	6.5	111
Show		04573-0545	RST4260		147	1.6	113
Show		04576-0545	STF 624		89	28.7	114
Show		04502-0238	UC 1220		358	24.6	117
Show		05040-0330	A 2803		49	0.3	122
Show		05038-0316	SLW 178		277	87.9	122
Show		04563-0152	A 115		250	1.2	123
Show		04543-0154	BAL 32		303	17.9	123
Show		04484-0442	RST4254	AB	112	0.5	124
Show		04484-0442	HJ 2240	AC	165	15.8	124

WDS 04561-0354 : COMPONENTS

	A
B	pa=117.9° sep=0.62"

04561-0354 A

Componente originario normalizzato	AB	Name	HD 31468	Coord arcsec 2000	045604.11-035412.5	Mag	8.54
Spectral class	K2 (yellow-orange)	PmRA	-3.00	PmDE	6.0	SAO	131610
HIP	22929	Tycho2	4745-00053-1	HD	31468	BD	BD-04 978

Tycho2

Tycho2	4745-00053-1	Pflag		RAmdeg	74.01711107	DEmdeg	-3.90345699
PmRA	-1.3	PmDE	6.0	E RAmdeg	8	E DEmdeg	9
E pmRA	0.9	E pmDE	1.0	EpRAm	1989.53	EpDEm	1989.25
Num	13	Q RAmdeg	1.1	Q DEmdeg	1.0	Q pmRA	1.2
Q pmDE	1.1	BTmag	10.088	E BTmag	0.028	VTmag	8.422
E VTmag	0.014	Prox	999	TYC	T	HIP	22929
CCDM	AB	RAdeg	74.01711472	DEdeg	-3.90347167	EpRA 1990	1.62
EpDE 1990	1.37	E RAdeg	7.7	E DEdeg	9.3	Posflg	P
Corr	-0.2

SAO

SAO	131610	DelFlag		RA1950		PmRA1950	-0.0013
DE1950		PmDE1950	0.016	Vmag	8	SpType	K2
Double code		Source	27	CatNum	1321	DM	BD-04 978
DMcomp		BDsup		HD	31468	M HD	0
GC		RA1950rad	1.28098056	DE1950rad	-0.06949338	PmRA2000	-0.0009
PmDE2000	0.015

Hipparcos

Catalog	H	HIP	22929	Proxy	H	RAhms	04 56 04.11
DEdms	-03 54 12.5	Vmag	8.25	VarFlag		R Vmag	H
RAdeg	74.0171	DEdeg	-3.90347	AstroRef	A	Plx	1.27
CCDM	04561-0354	N CCDM	H	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	A	M HIP	AB
Theta	117	Rho	0.609	HD	31468	BD	BD-04 978
CD		CP		Dm number	-04 978	VIred	1.31
SpType	K2	R SpType		Coord arcsec 2000	045604.11-035412.5

Hipparcos 2

HIP	22929	Sn	15	So	3	Nc	2
RArad	1.2918423261	DErad	-0.0681283754	Plx	1.11	PmRA	-2.81
PmDE	6.16	E RArad	1.06	E DErad	0.74	E Plx	1.19
E pmRA	1.38	E pmDE	0.93	Hpmag	8.3975	E Hpmag	0.0015
SHp	0.013	VA	0	BV	1.378	E BV	0.024
VI	1.35

CCDM

Ccdm	04561-0354	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-1.90	DDEs	-12.4
R dRAs	82	Year		Theta		Rho
Obs	2	Vmag	8.5	Sp	K2	PmNote	*
PmRA	-3	PmDE	6	Dm number	-04 978	Cat1	BD
Name2	131610	Cat2	SAO	HD	31468	M HD
ADS BDS		M ADS BDS		N IDS		IDS
HIC	22929

04561-0354 B

Componente originario normalizzato	AB		Coord arcsec 2000	045604.15-035412.8		Mag	10.94		Calc delta mag	2.4
Calc coord	yes

CCDM

Ccdm	04561-0354	RComp		Comp	B	Note1
Note2		Discov num	HDS	DRAs	-1.86	DDEs	-12.7
R dRAs	82	Year	1991	Theta	117	Rho	0.6
Obs	1	Vmag	11.5	Sp		PmNote	*
PmRA	-3	PmDE	6	Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS
HIC	22929