21074-0810 HDS 3010 (HD 201056)

21^h 07^m 24.97^s -08° 09' 51.5" P.A. 31.00 sep 0.9 mag 8.37,11.46 Sp A2 dist. 155.76 pc (508.09 l.y.)

Coord 2000	21074-0810	Discov num	HDS3010	Comp		Coord arcsec 2000	21 07 24.97 -08 09 51.5
Date first	1991	Date last	2021	Obs	5
Pa first	29	Pa last	31.3	P.A. Now (θ)	31.3°
Sep first	0.8	Sep last	0.853	Sep. Now (ρ)	0.853"
Mag pri	8.37	Mag sec	11.46	delta mag (ΔM)	3.09	Spectral class	A2 (white)
Pri motion ra	+019	Sec motion ra
Pri motion dec	+004	Sec motion dec
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 201056	Constellation	Aquarius	SAO	145117	HIP	104271
Tycho2	5771-01609-1	Gaia DR2	6897105947048897024	HD	201056	BD	BD-08 5580
Distance	155.76	Distance ly	508.09

WDS 21074-0810 HDS 3010 (HD 201056) : 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
21074-0810	HDS3010		1991	1	29	0.8	8.37	11.46	A2	D	210724.97-080951.5
21074-0810	HDS3010		2014	3	31	0.8	8.37	11.46	A2		210724.97-080951.5
21074-0810	HDS3010		2021	5	31	0.9	8.37	11.46	A2		210724.97-080951.5

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

WDS 21074-0810 HDS 3010 (HD 201056) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21074-0810 HDS 3010 (HD 201056) : MEASURES

No records found.

WDS 21074-0810 (HD 201056) : VIRTUAL EYEPIECE

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Pass over with the mouse cursor to display the catalog designation.

WDS 21074-0810 (HD 201056) : ALADIN DSS IMAGE @ 21^h 07^m 24.97^s -08° 09' 51.5"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21074-0810 HDS 3010 (HD 201056) : 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		21074-0810	HDS3010		31	0.9
Show		21074-0814	BU 368	CD	298	6.0	5
Show		21074-0814	BU 368	AB	312	0.0	5
Show		21074-0814	BU 368	AC	39	15.6	5
Show		21074-0814	POP 227	AB,E	117	51.3	5
Show		21078-0826	RST4074		28	1.8	17
Show		21065-0753	TDT2752		79	0.5	22
Show		21092-0814	JNN 128		121	0.9	28
Show		21054-0744	RST4691		71	0.5	40
Show		21079-0725	KPP2183		190	17.9	46
Show		21071-0858	J 1782		193	5.1	47
Show		21042-0811	TDT2725		74	0.4	49
Show		21103-0845	UC 4397		270	43.4	55
Show		21106-0837	HJ 930		114	10.3	56
Show		21115-0832	J 2340		323	6.7	63
Show		21082-0916	UC 4387		14	16.0	67
Show		21119-0757	TDT2815		236	0.5	68
Show		21042-0911	AOT 102		113	14.6	78
Show		21100-0658	GRV1140		287	37.0	83
Show		21069-0937	TDT2762		94	0.8	88
Show		21136-0749	SLW1232		187	60.4	94
Show		21096-0940	RST4075		40	1.6	97
Show		21008-0821	BU 678	AB	260	2.8	99
Show		21008-0821	FOX 255	AC	251	71.0	99
Show		21100-0642	GRV1141		84	16.9	102
Show		21032-0935	AOT 99		116	7.4	106
Show		21075-0956	TDT2770		215	0.6	106
Show		21135-0905	BRT 515		67	4.1	106
Show		21077-0621	BRT 513		258	6.6	109
Show		21146-0849	TDT2851		71	0.5	114
Show		21121-0638	TDT2821		220	0.6	115
Show		20595-0804	RST3275		5	1.9	118
Show		21023-0941	HJ 929		2	23.9	118
Show		21008-0704	UC 4361		52	39.2	118
Show		21151-0742	GRV1153		181	17.0	118
Show		21052-1004	AOT 104		174	7.6	120
Show		21011-0657	WAA 49		171	6.1	120
Show		21029-0950	AOT 98		276	15.7	120
Show		20593-0812	AHD 31		161	10.6	122
Show		21027-0629	UC 4364		165	27.0	123
Show		21079-1013	BU 473	AB	117	2.1	124
Show		21079-1013	BU 473	AC	16	39.0	124
Show		21034-1000	AOT 100		146	21.2	126
Show		21157-0901	ZIE 13		19	8.2	134
Show		21050-1020	AOT 103		224	21.6	135
Show		21036-1012	AOT 101		139	14.6	135
Show		21032-0610	RST4689		84	0.8	136
Show		20599-0653	UC 4355		21	32.1	136
Show		21005-0642	CVR 881		127	11.1	136
Show		21085-1028	LDS1478		200	5.2	139
Show		21027-1012	AOT 97		4	13.1	142

WDS 21074-0810 : COMPONENTS

	A
B	pa=31.0° sep=0.85"

21074-0810 A

Componente originario normalizzato	AB	Name	HD 201056	Coord arcsec 2000	210724.97-080951.5	Mag	8.37
Spectral class	A2 (white)	PmRA	19.00	PmDE	4.0	SAO	145117
HIP	104271	Tycho2	5771-01609-1	HD	201056	BD	BD-08 5580

Tycho2

Tycho2	5771-01609-1	Pflag		RAmdeg	316.85409511	DEmdeg	-8.16427575
PmRA	21.7	PmDE	6.0	E RAmdeg	5	E DEmdeg	7
E pmRA	1.3	E pmDE	1.3	EpRAm	1991.35	EpDEm	1990.89
Num	7	Q RAmdeg	0.4	Q DEmdeg	0.6	Q pmRA	0.5
Q pmDE	0.6	BTmag	8.443	E BTmag	0.016	VTmag	8.303
E VTmag	0.012	Prox	377	TYC	T	HIP	104271
CCDM	AB	RAdeg	316.85404444	DEdeg	-8.16428972	EpRA 1990	1.73
EpDE 1990	1.72	E RAdeg	5.3	E DEdeg	6.7	Posflg	P
Corr	-0.2

SAO

SAO	145117	DelFlag		RA1950		PmRA1950	0.0012
DE1950		PmDE1950	0.008	Vmag	8.4	SpType	A2
Double code		Source	26	CatNum	7576	DM	BD-08 5580
DMcomp		BDsup		HD	201056	M HD	0
GC		RA1950rad	5.51847285	DE1950rad	-0.14602068	PmRA2000	0.0014
PmDE2000	0.006

Hipparcos

Catalog	H	HIP	104271	Proxy	H	RAhms	21 07 24.97
DEdms	-08 09 51.5	Vmag	8.25	VarFlag		R Vmag	G
RAdeg	316.854	DEdeg	-8.1643	AstroRef	A	Plx	4.24
CCDM	21074-0810	N CCDM	H	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	A	M HIP	AB
Theta	29	Rho	0.76	HD	201056	BD	BD-08 5580
CD		CP		Dm number	-08 5580	VIred	0.14
SpType	A2	R SpType		Coord arcsec 2000	210724.97-080951.5

Hipparcos 2

HIP	104271	Sn	15	So	3	Nc	2
RArad	5.5301461696	DErad	-0.1424938508	Plx	6.42	PmRA	20.63
PmDE	4.75	E RArad	0.72	E DErad	0.46	E Plx	0.89
E pmRA	1.16	E pmDE	0.48	Hpmag	8.3047	E Hpmag	0.0009
SHp	0.01	VA	0	BV	0.128	E BV	0.002
VI	0.14

CCDM

Ccdm	21074-0810	RComp		Comp	A	Note1
Note2		Discov num		DRAs	0.98	DDEs	8.6
R dRAs	82	Year		Theta		Rho
Obs	2	Vmag	8.4	Sp	A2	PmNote	*
PmRA	19	PmDE	4	Dm number	-08 5580	Cat1	BD
Name2	145117	Cat2	SAO	HD	201056	M HD
ADS BDS		M ADS BDS		N IDS		IDS
HIC	104271

21074-0810 B

Componente originario normalizzato	AB		Coord arcsec 2000	210725.00-080950.8		Mag	11.46		Calc delta mag	3.09
Calc coord	yes

CCDM

Ccdm	21074-0810	RComp		Comp	B	Note1
Note2		Discov num	HDS	DRAs	1.00	DDEs	9.2
R dRAs	82	Year	1991	Theta	29	Rho	0.8
Obs	1	Vmag	11.5	Sp		PmNote	*
PmRA	19	PmDE	4	Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS
HIC	104271