10551-3100 OL 42 AC

10^h 55^m 05.30^s -30° 59' 34.2" P.A. 37.00 sep 35.3 mag 9.99,10.97 Sp A3V:

Coord 2000	10551-3100	Discov num	OL 42	Comp	AC	Coord arcsec 2000	10 55 05.30 -30 59 34.2
Date first	1910	Date last	2017	Obs	10
Pa first	34	Pa last	37.4	P.A. Now (θ)	37.4°
Sep first	35.1	Sep last	35.3	Sep. Now (ρ)	35.3"
Mag pri	9.99	Mag sec	10.97	delta mag (ΔM)	0.98	Spectral class	A3V: (white)
Pri motion ra	-002	Sec motion ra	+002
Pri motion dec	+025	Sec motion dec	-006
Notes

rPM=1.246

This double is not physical.

10551-3100 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 94640	201894	10 55 05 -30 59 34	OL 42 AB	2016	13	153	3.6	9.99	11.10	1.11
Show		201894	10 55 05 -30 59 34	OL 42 AC	2017	10	37	35.3	9.99	10.97	0.98		<===

Triple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation	Hydra		SAO	201894		Tycho2	7199-01477-1		Gaia DR2	5451312306156023552
HD	94640

WDS 10551-3100 OL 42 AC : NOTES

No records found.

DISCOVERER

discov	author
OL	Olivier, C.P.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	dm_number	notes	coord_arcsec_2000
10551-3100	OL 42	AC	1999	7	38	35.1	9.99	10.97	A3V:		D	105505.30-305934.2
10551-3100	OL 42	AC	2017	9	37	35.3	9.99	10.97	A3V:			105505.30-305934.2

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

WDS 10551-3100 OL 42 AC : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 10551-3100 OL 42 AC : MEASURES

No records found.

WDS 10551-3100 : VIRTUAL EYEPIECE

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

WDS 10551-3100 : ALADIN DSS IMAGE @ 10^h 55^m 05.30^s -30° 59' 34.2"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 10551-3100 OL 42 AC : NEIGHBORHOODS

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		10551-3100	OL 42	AB	153	3.6	0
Show		10551-3100	OL 42	AC	37	35.3	0
Show		10551-3059	UC 2024		330	43.2	2
Show		10546-3115	LDS4036		189	62.1	17
Show		10554-3117	OL 43		91	1.9	18
Show		10546-3027	TDS7546		240	0.4	33
Show		10586-3102	B 1694		321	0.6	46
Show		10536-3145	UC 2019		34	11.6	50
Show		10582-3134	HJ 4389	AB	336	9.9	53
Show		10532-3006	SHY 563		178	999.9	59
Show		10504-3111	UC 2008		287	11.0	61
Show		10529-3005	TDS7529		231	0.6	62
Show		10598-3055	RSS 252		296	9.3	62
Show		10515-3019	KPP1352		268	10.3	62
Show		10544-2959	RST1536		344	1.1	62
Show		10596-3122	RST1549		270	1.8	63
Show		10565-3209	UC 2031		94	17.1	72
Show		10548-2947	LDS4037		272	116.4	73
Show		11009-3116	RST1551		194	0.3	76
Show		10492-3041	LDS5718	AB	185	190.0	78
Show		10492-3041	LDS5718	AC	24	245.8	78
Show		10504-3202	TDS7496		98	0.8	87
Show		10526-2931	HDS1554		41	0.4	95
Show		10495-2946	LDS5719		238	223.1	102
Show		10583-2926	J 1570	AB	93	13.9	102
Show		10470-3036	TDS7471		233	0.9	108
Show		11019-2952	SKF1898		127	39.2	111
Show		10591-3244	UC 2045		70	13.5	116
Show		10502-3238	TDS7495		318	2.2	117
Show		10532-2859	LDS 317		337	26.1	124
Show		10500-3247	LDS5720		87	259.7	127
Show		10518-3308	TDS7516		174	0.9	135
Show		10492-2908	SKF1896		76	57.3	136
Show		11037-2941	HDS1577		3	10.7	137
Show		10553-3315	LDS5722		271	372.0	137
Show		11047-3205	I 1533		354	0.6	140
Show		11000-2851	TDS7598		124	0.5	144
Show		10572-3322	UC 2034		9	10.7	145
Show		10474-2914	TDS7473		350	0.4	146
Show		10543-3325	PRO 96		266	6.0	146
Show		10513-3321	PRO 95		55	6.8	149
Show		11041-3235	RST1559		132	0.4	150
Show		11035-3245	TRC 3	AB	345	10.4	151
Show		11035-3245	GKM9257	Aa,Ab	350	0.3	151
Show		10437-3132	BRT2982		74	4.2	151
Show		11015-2852	RST1552		269	0.6	153
Show		10562-2824	UC 2029		67	25.2	156
Show		10591-2827	KPP2929	AB	48	8.4	161
Show		11071-3154	KPP 544		249	4.9	164
Show		10427-3019	BRT2981		22	4.1	165
Show		10475-2846	HJ 4372		294	12.1	166

WDS 10551-3100 : COMPONENTS

	A	B
B	pa=152.9° sep=3.60"
C	pa=37.4° sep=35.30"	pa=32.4° sep=36.99"

10551-3100 A

Name	HD 94640	Coord arcsec 2000	105505.30-305934.2	Mag	9.99	Spectral class	A3V: (white)
PmRA	-2.00	PmDE	25.0	SAO	201894	Tycho2	7199-01477-1
HD	94640	DM	CD-30 8818

Tycho2

Tycho2	7199-01477-1	Pflag		RAmdeg	163.77213178	DEmdeg	-30.99284757
PmRA	-29.8	PmDE	0.2	E RAmdeg	12	E DEmdeg	16
E pmRA	3.7	E pmDE	3.2	EpRAm	1991.56	EpDEm	1991.24
Num	2	Q RAmdeg		Q DEmdeg		Q pmRA
Q pmDE		BTmag	10.356	E BTmag	0.024	VTmag	9.992
E VTmag	0.024	Prox	352	TYC	T	HIP
CCDM		RAdeg	163.77221194	DEdeg	-30.99284806	EpRA 1990	1.70
EpDE 1990	1.55	E RAdeg	11.8	E DEdeg	15.7	Posflg
Corr	0.2

SAO

SAO	201894	DelFlag		RA1950		PmRA1950	-0.0004
DE1950		PmDE1950	0.001	Vmag	9.4	SpType	A2
Double code		Source	40	CatNum	5344	DM	CD-30 8818
DMcomp		BDsup		HD	94640	M HD	0
GC		RA1950rad	2.84801763	DE1950rad	-0.53627525	PmRA2000	-0.0002
PmDE2000	0.005

CCDM

Ccdm	10551-3100	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-0.64	DDEs	24.9
R dRAs	66	Year		Theta		Rho
Obs	3	Vmag	9.7	Sp	A2	PmNote
PmRA	-4	PmDE	3	Dm number	-30 8818	Cat1	CD
Name2	-30 3232	Cat2	CPD	HD	94640	M HD
ADS BDS		M ADS BDS		N IDS		IDS	10504S3028A
HIC

10551-3100 B

Coord arcsec 2000	105505.43-305937.4		Mag	11.1		PmRA	17.00		PmDE	-62.0
Delta magnitude	1.11		Coordinate calculated	yes

CCDM

Ccdm	10551-3100	RComp		Comp	B	Note1
Note2		Discov num	OL 42	DRAs		DDEs
R dRAs		Year	1910	Theta	154	Rho	3.6
Obs	3	Vmag	10.8	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS	10504S3028B
HIC

10551-3100 C

Coord arcsec 2000	105506.97-305906.2		Mag	10.97		PmRA	2.00		PmDE	-6.0
Delta magnitude	0.98		Coordinate calculated	yes

CCDM

Ccdm	10551-3100	RComp		Comp	C	Note1
Note2		Discov num	OL 42	DRAs	0.94	DDEs	53.4
R dRAs	66	Year	1910	Theta	034	Rho	35.2
Obs	2	Vmag	10.5	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2	-30 3233	Cat2	CPD	HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS	10504S3028C
HIC