08394-0935 RST 4415 (V490 Hya)

08^h 39^m 23.46^s -09° 34' 39.7" P.A. 170.00 sep 1.2 mag 8.81,10.93 Sp A0 dist. 155.28 pc (506.52 l.y.)

Coord 2000	08394-0935	Discov num	RST4415	Comp		Coord arcsec 2000	08 39 23.46 -09 34 39.7
Date first	1940	Date last	2016	Obs	8
Pa first	175	Pa last	170.2	P.A. Now (θ)	170.2°
Sep first	1.0	Sep last	1.159	Sep. Now (ρ)	1.159"
Mag pri	8.81	Mag sec	10.93	delta mag (ΔM)	2.12	Spectral class	A0 (white)
Pri motion ra	-025	Sec motion ra	-025
Pri motion dec	+004	Sec motion dec	+004
Notes	N (See Notes)

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Var name	V490 Hya	Constellation	Hydra	SAO	136140	HIP	42457
Tycho2	5433-01441-1	Gaia DR2	5750336897194239488	HD	73714	BD	BD-09 2610
Distance	155.28	Distance ly	506.52

WDS 08394-0935 RST 4415 (V490 Hya) : NOTES

discov_num	notes	refcode
RST4415	Algol-type eclipsing binary, P = 92.1711 d.	Zas2011

REFERENCES

refcode	metd	author	reference
Zas2011	-	Zasche, P.	...................
Zas2011		private communication, 2011

DISCOVERER

idgroup	discov	author
1	RST	Rossiter, R.A.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
08394-0935	RST4415		1991	6	169	1.1	8.81	10.93	A0	D	083923.46-093439.7
08394-0935	RST4415		2015	7	170	1.2	8.81	10.93	A0	N	083923.46-093439.7
08394-0935	RST4415		2016	8	170	1.2	8.81	10.93	A0	N	083923.46-093439.7

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

WDS 08394-0935 RST 4415 (V490 Hya) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 08394-0935 RST 4415 (V490 Hya) : MEASURES

No records found.

WDS 08394-0935 (V490 Hya) : VIRTUAL EYEPIECE

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WDS 08394-0935 (V490 Hya) : ALADIN DSS IMAGE @ 08^h 39^m 23.46^s -09° 34' 39.7"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 08394-0935 RST 4415 (V490 Hya) : 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		08394-0935	RST4415		170	1.2
Show		08385-0958	DAM1428		236	6.0	27
Show		08389-1002	GWP1057		341	29.1	29
Show		08367-0943	HDS1238		341	0.1	42
Show		08377-1017	KPP1305			9.9	49
Show		08380-0844	HDS1242		223	0.2	55
Show		08428-0913	J 2885		200	3.0	57
Show		08364-0858	UC 1691		186	57.2	58
Show		08386-1034	KPP3756		90	6.4	61
Show		08350-0924	A 1339		194	2.4	67
Show		08360-1027	GWP1048		135	27.6	73
Show		08365-1034	RST3599		168	8.4	73
Show		08390-0822	J 2496		167	8.5	73
Show		08398-1052	J 2884		183	5.4	78
Show		08446-0927	HDS1259		209	0.2	78
Show		08425-0830	H 6 107		151	93.5	80
Show		08342-0957	HDS1226		307	0.1	81
Show		08423-0824	STF1264		269	6.4	83
Show		08445-1032	J 2886		114	6.2	96
Show		08329-0933	J 2642		179	3.5	96
Show		08460-0939	RST4421		55	3.2	98
Show		08461-0937	DAM 479		8	7.2	100
Show		08365-1106	J 2883		66	5.3	102
Show		08325-0929	RST4406		213	0.6	102
Show		08335-0836	DAM 473		53	5.5	106
Show		08448-1044	HJ 795		18	6.0	107
Show		08336-0832	J 2881		164	3.4	108
Show		08464-0852	GWP1079		99	27.9	112
Show		08449-0815	HDS1261		207	0.7	114
Show		08380-0736	GWP1054		108	209.9	121
Show		08480-0934	TDS 493		12	1.5	128
Show		08365-1136	HJ 792		118	15.6	129
Show		08309-1010	A 3062		223	3.9	131
Show		08461-1100	BU 1069		62	2.4	132
Show		08349-1133	J 2495		335	6.7	135
Show		08471-1053	HU 121		97	3.8	139
Show		08463-0802	WSP 36	AB	67	4.9	139
Show		08463-0802	WSP 36	AC	257	9.5	139
Show		08463-0802	WSP 36	AD	259	13.1	139
Show		08463-0802	WSP 36	AE	265	17.9	139
Show		08407-1156	STF1261		303	29.5	143
Show		08318-1103	BRT3208		358	4.1	143
Show		08333-0745	RST4408		27	0.4	143
Show		08369-1154	GWP1050		102	265.8	145
Show		08300-1014	HJ 790		28	16.0	145
Show		08369-0714	SKF 780		219	25.3	146
Show		08298-1015	HJ 789		48	10.2	147
Show		08312-1100	GWP1029		325	57.4	148
Show		08296-0851	TDS5869		10	2.4	152
Show		08492-0849	A 3068		21	1.0	153
Show		08437-0714	S 579	AB	310	78.8	155

WDS 08394-0935 : COMPONENTS

	A
B	pa=170.3° sep=1.16"

08394-0935 A

Componente originario normalizzato	AB	Name	V490 Hya	Coord arcsec 2000	083923.46-093439.7	Mag	8.81
Spectral class	A0 (white)	PmRA	-25.00	PmDE	4.0	SAO	136140
HIP	42457	Tycho2	5433-01441-1	HD	73714	BD	BD-09 2610

Tycho2

Tycho2	5433-01441-1	Pflag	P	RAmdeg	129.84773071	DEmdeg	-9.57768760
PmRA	-25.0	PmDE	4.2	E RAmdeg	8	E DEmdeg	9
E pmRA	2.1	E pmDE	2.0	EpRAm	1991.52	EpDEm	1991.43
Num	5	Q RAmdeg	0.5	Q DEmdeg	1.1	Q pmRA	0.5
Q pmDE	1.1	BTmag	8.942	E BTmag	0.018	VTmag	8.808
E VTmag	0.016	Prox	11	TYC	T	HIP	42457
CCDM	A	RAdeg	129.84778528	DEdeg	-9.57768167	EpRA 1990	1.74
EpDE 1990	1.71	E RAdeg	7.5	E DEdeg	8.8	Posflg	D
Corr	0.1

SAO

SAO	136140	DelFlag		RA1950		PmRA1950	-0.0028
DE1950		PmDE1950	0.011	Vmag	8.7	SpType	A0
Double code		Source	26	CatNum	3358	DM	BD-09 2610
DMcomp		BDsup		HD	73714	M HD	0
GC		RA1950rad	2.25571988	DE1950rad	-0.16407029	PmRA2000	-0.0024
PmDE2000	0.016

Hipparcos

Catalog	H	HIP	42457	Proxy	H	RAhms	08 39 23.47
DEdms	-09 34 39.7	Vmag	8.68	VarFlag	2	R Vmag	H
RAdeg	129.848	DEdeg	-9.57769	AstroRef	A	Plx	4.86
CCDM	08394-0935	N CCDM	I	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	A	M HIP	AB
Theta	172	Rho	1.187	HD	73714	BD	BD-09 2610
CD		CP		Dm number	-09 2610	VIred	0.1
SpType	A0	R SpType		Coord arcsec 2000	083923.47-093439.7

Hipparcos 2

HIP	42457	Sn	15	So	3	Nc	2
RArad	2.2662714285	DErad	-0.16716216	Plx	6.44	PmRA	-21.6
PmDE	2.79	E RArad	0.93	E DErad	0.67	E Plx	1.1
E pmRA	1.05	E pmDE	0.8	Hpmag	8.7145	E Hpmag	0.0018
SHp	0.016	VA	2	BV	0.1	E BV	0.495
VI	0.1

CCDM

Ccdm	08394-0935	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-0.62	DDEs	20.8
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	8.2	Sp	A0	PmNote	*
PmRA	-41	PmDE	11	Dm number	-09 2610	Cat1	BD
Name2	136140	Cat2	SAO	HD	73714	M HD
ADS BDS		M ADS BDS		N IDS		IDS	08346S0913A
HIC	42457

08394-0935 B

Componente originario normalizzato	AB		Coord arcsec 2000	083923.47-093440.8		Mag	10.93		PmRA	-25.00
PmDE	4.0		Tycho2	5433-01441-2		Calc delta mag	2.12		Calc coord	yes

Tycho2

Tycho2	5433-01441-2	Pflag	P	RAmdeg	129.84773071	DEmdeg	-9.57768760
PmRA	-25.0	PmDE	4.2	E RAmdeg	8	E DEmdeg	9
E pmRA	2.1	E pmDE	2.0	EpRAm	1991.52	EpDEm	1991.43
Num	5	Q RAmdeg	0.5	Q DEmdeg	1.1	Q pmRA	0.5
Q pmDE	1.1	BTmag	11.399	E BTmag	0.077	VTmag	10.928
E VTmag	0.076	Prox	11	TYC		HIP	42457
CCDM	B	RAdeg	129.84784556	DEdeg	-9.57797889	EpRA 1990	1.74
EpDE 1990	1.69	E RAdeg	43.6	E DEdeg	53.1	Posflg	D
Corr	0.1

CCDM

Ccdm	08394-0935	RComp		Comp	B	Note1
Note2		Discov num	RST4415	DRAs		DDEs
R dRAs		Year	1939	Theta	176	Rho	1.1
Obs	4	Vmag	10.2	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS	08346S0913B
HIC	42457