17256-5825 I 594 (HD 157220)

17^h 25^m 34.48^s -58° 24' 38.6" P.A. 241.00 sep 4.1 mag 9.30,10.96 Sp G8/K0III dist. 452.49 pc (1476.02 l.y.)

Coord 2000	17256-5825	Discov num	I 594	Comp		Coord arcsec 2000	17 25 34.48 -58 24 38.6
Date first	1909	Date last	2015	Obs	8
Pa first	240	Pa last	241	P.A. Now (θ)	241°
Sep first	2.5	Sep last	4.1	Sep. Now (ρ)	4.1"
Mag pri	9.30	Mag sec	10.96	delta mag (ΔM)	1.66	Spectral class	G8/K0III (yellow)
Pri motion ra	+016	Sec motion ra	-007
Pri motion dec	-007	Sec motion dec	-028
Notes

rPM=1.079

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 157220	Constellation	Ara	SAO	244728	HIP	85283
Tycho2	8740-00745-1	Gaia DR2	5916078001535767296	HD	157220	CP	CP-58 7116
Distance	452.49	Distance ly	1476.02

WDS 17256-5825 I 594 (HD 157220) : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
I__1895	Ma -	Innes, R.T.A.	1895MNRAS..55..312I
I__1895	+Mb	MNRAS 55, 312,544, 1895
I__1896	Mb -	Innes, R.T.A.	1896JBAA....6..261I
I__1896		J. British Astron. Assoc. 6, 261, 1896
I__1897a	Ma -	Innes, R.T.A.	1897MNRAS..57..533I
I__1897a		MNRAS 57, 533, 1897 (data also in I__1897b,	1897AN....143..171I
I__1897a		I__1897c)	1897AN....144...89I
I__1897b	Ma -	Innes, R.T.A.	1897AN....143..171I
I__1897b		AN 143, 171, 1897
I__1897c	Ma -	Innes, R.T.A.	1897AN....144...89I
I__1897c		AN 144, 89, 1897
I__1897d	Ma -	Innes, R.T.A.	1897AN....145...93I
I__1897d		AN 145, 93, 1897
I__1897e	Ma -	Innes, R.T.A.	1897MNRAS..57..456I
I__1897e	+Mb	MNRAS 57, 456, 1897
I__1897f	Ma -	Innes, R.T.A.	1897MNRAS..58...48I
I__1897f		MNRAS 58, 48, 1897
I__1897g	Ma -	Innes, R.T.A.	1897AJ.....18...65I
I__1897g		AJ 18, 65, 1897
I__1898	Ma -	Innes, R.T.A.	1898AN....146..369I
I__1898		AN 146, 369, 1898
I__1899	Ma -	Innes, R.T.A.	1899QB4.C22v2......
I__1899		Ann. Cape Obs. 2, Pt.2, 1899 (Innes Reference Catalog)
I__1901	Ma -	Innes, R.T.A.	1901MNRAS..61..575.
I__1901		MNRAS 61, 575, 1901 (data also in I__1905)	1905AnCap...2....4I
I__1902a	Ma -	Innes, R.T.A.	1902MNRAS..62..470I
I__1902a		MNRAS 62, 470, 1902 (data also in I__1905)	1905AnCap...2....4I
I__1902b	Ma -	Innes, R.T.A.	1902MNRAS..63...76I
I__1902b		MNRAS 63, 76, 1902 (some data also in I__1905)	1905AnCap...2....4I
I__1903	-	Innes, R.T.A.	1903MNRAS..64..130I
I__1903		MNRAS 64, 130, 1903 (data also in I__1905)	1905AnCap...2....4I
I__1903b	Ma -	Innes, R.T.A.	1903Obs....26..285I
I__1903b		Obs 26, 285, 1903 (some data also in I__1905)	1905AnCap...2....4I
I__1905	Ma -	Innes, R.T.A.	1905AnCap...2....4I
I__1905		Ann. Cape Obs. 2, Pt.4, 1905
I__1907	Ma -	Innes, R.T.A.	1907Obs....30...61I
I__1907		Obs 30, 61, 1907
I__1908	-	Innes, R.T.A.	1908Obs....31..289I
I__1908		Obs 31, 289, 1908 (measures also in I__1909)
I__1909	Ma -	Innes, R.T.A.	.
I__1909		Transvaal Obs. Circ. 1, 1, 1909
I__1910	Ma -	Innes, R.T.A.	.
I__1910		Transvaal Obs. Circ. 1, 21, 1910
I__1911	Ma -	Innes, R.T.A.	.
I__1911		Transvaal Obs. Circ. 1, 61, 1911
I__1912	Ma -	Innes, R.T.A.	.
I__1912		Transvaal Obs. Circ. 1, 111, 1912
I__1913a	Ma -	Innes, R.T.A.	1913CiUO....4...31.
I__1913a		Union Obs. Johannesburg Circ. 4, 31, 1913
I__1913b	Ma -	Innes, R.T.A. (measure by Simpkins, R.P.)	1913CiUO....4...31.
I__1913b		Union Obs. Johannesburg Circ. 4, 31, 1913
I__1914	Ma -	Innes, R.T.A.	1914CiUO...14...97.
I__1914		Union Obs. Johannesburg Circ. 14, 97, 1914
I__1915a	Ma -	Innes, R.T.A.	1915CiUO...24..185.
I__1915a		Union Obs. Johannesburg Circ. 24, 185, 1915
I__1915b	Ma -	Innes, R.T.A. (measure by Cox, G.W.)	1915CiUO...24..185.
I__1915b		Union Obs. Johannesburg Circ. 24, 185, 1915
I__1915c	Ma -	Innes, R.T.A. (measure by Johnson, E.L.)	1915CiUO...24..185.
I__1915c		Union Obs. Johannesburg Circ. 24, 185, 1915
I__1915d	Ma -	Innes, R.T.A. (measure by Simpkins, R.P.)	1915CiUO...24..185.
I__1915d		Union Obs. Johannesburg Circ. 24, 185, 1915
I__1915e	-	Innes, R.T.A.	1915Obs....38..221I
I__1915e		Obs 38, 221, 1915 (measures also in I__1916)	1916CiUO...33..249I
I__1915f	-	Innes, R.T.A.	1915Obs....38..333I
I__1915f		Obs 38, 333, 1915 (measures also in I__1915)	1915CiUO...24..185I
I__1916a	Ma -	Innes, R.T.A.	1916CiUO...33..249I
I__1916a		Union Obs. Johannesburg Circ. 33, 249, 1916
I__1916b	Ma -	Innes, R.T.A. (measure by Simpkins, R.P.)	1916CiUO...33..249I
I__1916b		Union Obs. Johannesburg Circ. 33, 249, 1916
I__1916c	Ma -	Innes, R.T.A. (measure by van der Spuy, K.)	1916CiUO...33..249I
I__1916c		Union Obs. Johannesburg Circ. 33, 249, 1916
I__1917a	Ma -	Innes, R.T.A.	1917CiUO...37..285I
I__1917a		Union Obs. Johannesburg Circ. 37, 285, 1917
I__1917b	Ma -	Innes, R.T.A. (measure by Johnson, E.L.)	1917CiUO...37..285I
I__1917b		Union Obs. Johannesburg Circ. 37, 285, 1917
I__1917c	Ma -	Innes, R.T.A. (measure by van der Spuy, K.)	1917CiUO...37..285I
I__1917c		Union Obs. Johannesburg Circ. 37, 285, 1917
I__1917d	Ma -	Innes, R.T.A. (measure by Worssell, W.M.)	1917CiUO...37..285I
I__1917d		Union Obs. Johannesburg Circ. 37, 285, 1917
I__1918	Ma -	Innes, R.T.A.	1918CiUO...41..339I
I__1918		Union Obs. Johannesburg Circ. 41, 339, 1918
I__1927a	Ma -	Innes, R.T.A.	1927sdsc.book.....I
I__1927a	+Po	Southern Double Star Cat. 1927
I__1927b	Ma -	Innes, R.T.A. & van den Bos, W.H.	1927sdsc.book.....I
I__1927b		Southern Double Star Cat. 1927
I__1932A	Ma -	Innes, R.T.A.	1932QB821.A43......
I__1932A		cited in ADS (Aitken Double Star Cat.), 1932
I__1948a	Ma -	Innes, R.T.A.	1948CiUO..106..193I
I__1948a	+Po	Union Obs. Johannesburg Circ. 106, 193, 1948
I__1948b	Ma -	Innes, R.T.A. (measure by Simpkins, R.P.)	1948CiUO..106..193I
I__1948b		Union Obs. Johannesburg Circ. 106, 193, 1948
I__9999	Ma -	Innes, R.T.A.	...................
I__9999	+Mb	Unpublished, manuscript or reference not found.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
17256-5825	I 594		1991	6	240	4.1	9.30	10.96	G8/K0III		172534.48-582438.6
17256-5825	I 594		1998	7	240	4.2	9.30	10.96	G8/K0III		172534.48-582438.6
17256-5825	I 594		2015	8	241	4.1	9.30	10.96	G8/K0III		172534.48-582438.6

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

WDS 17256-5825 I 594 (HD 157220) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 17256-5825 I 594 (HD 157220) : MEASURES

No records found.

WDS 17256-5825 (HD 157220) : 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 17256-5825 (HD 157220) : ALADIN DSS IMAGE @ 17^h 25^m 34.48^s -58° 24' 38.6"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 17256-5825 I 594 (HD 157220) : 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		17256-5825	I 594		241	4.1
Show		17228-5828	COO 213	AB	285	9.2	23
Show		17228-5828	COO 213	AC	92	30.8	23
Show		17229-5801	HDO 270	AB	184	1.8	32
Show		17229-5801	HDO 270	AC	153	40.0	32
Show		17234-5857	TDT 334		157	1.6	37
Show		17254-5903	R 300		348	8.8	39
Show		17222-5902	HJ 4934		269	14.6	46
Show		17248-5913	I 385	AB	117	0.4	49
Show		17248-5913	WSI 87	AD	271	0.3	49
Show		17248-5913	I 385	AE	109	28.1	49
Show		17248-5913	I 385	AB,C	210	17.3	49
Show		17244-5919	JSP 717		332	3.6	56
Show		17249-5924	HDS2458		354	1.0	60
Show		17177-5824	BRT3182		50	2.6	63
Show		17301-5733	HJ 4950		306	10.3	63
Show		17206-5730	BRT2822		344	3.6	67
Show		17341-5824	RST5086		17	2.9	67
Show		17308-5920	JSP 931		186	7.5	69
Show		17241-5716	BRT2823		107	4.4	70
Show		17206-5926	HJ 4931		255	0.8	73
Show		17188-5734	RST 916		214	0.4	74
Show		17211-5944	RST5077		314	2.1	87
Show		17181-5932	RST5075		224	1.5	89
Show		17360-5903	RST5089		139	2.0	91
Show		17147-5857	TDT 285		190	0.5	91
Show		17192-5942	HDO 312		275	27.3	92
Show		17315-5948	JSP 932		171	5.2	95
Show		17231-5958	RST5078		45	0.5	96
Show		17240-6002	R 299		342	10.7	98
Show		17130-5836	HJ 4920		322	2.9	100
Show		17141-5736	TDT 278		147	0.8	104
Show		17388-5847	FIN 258		203	3.5	106
Show		17366-5928	KPP 998		101	8.1	107
Show		17246-5629	HRG 123		296	29.2	116
Show		17118-5919	JSP 708		273	1.5	121
Show		17369-5706	RST 942		282	1.0	121
Show		17215-5628	HJ 4939		227	29.6	121
Show		17207-6020	RST5076		227	0.7	122
Show		17254-5623	HJ 4942	AB	326	18.4	122
Show		17254-5623	HJ 4942	AC	64	41.2	122
Show		17254-5623	ANT 5	AD	39	47.2	122
Show		17252-5621	BRT3318		105	2.7	125
Show		17207-5625	FIN 255	AB	108	0.4	126
Show		17207-5625	HJ 4938	AB,C	109	25.0	126
Show		17335-5636	BRT3185		306	5.7	126
Show		17173-6016	B 1853		40	4.0	129
Show		17315-6026	I 600		151	0.5	130
Show		17419-5849	I 607		293	1.1	131
Show		17211-6031	FIN 254		245	2.9	132
Show		17309-5621	FIN 257		122	0.1	132

WDS 17256-5825 : COMPONENTS

	A
B	pa=223.4° sep=2.73"

17256-5825 A

Componente originario normalizzato	AB	Name	HD 157220	Coord arcsec 2000	172534.48-582438.6	Mag	9.3
Spectral class	G8/K0III (yellow)	PmRA	16.00	PmDE	-7.0	SAO	244728
HIP	85283	Tycho2	8740-00745-1	HD	157220	CP	CP-58 7116

Tycho2

Tycho2	8740-00745-1	Pflag		RAmdeg	261.39364831	DEmdeg	-58.41071042
PmRA	6.8	PmDE	-11.4	E RAmdeg	11	E DEmdeg	13
E pmRA	1.6	E pmDE	1.6	EpRAm	1989.77	EpDEm	1989.30
Num	8	Q RAmdeg	2.7	Q DEmdeg	2.5	Q pmRA	2.5
Q pmDE	2.4	BTmag	10.362	E BTmag	0.029	VTmag	9.296
E VTmag	0.018	Prox	41	TYC	T	HIP	85283
CCDM	A	RAdeg	261.39362278	DEdeg	-58.41068278	EpRA 1990	1.84
EpDE 1990	1.92	E RAdeg	11.8	E DEdeg	13.8	Posflg
Corr	0.3

SAO

SAO	244728	DelFlag		RA1950		PmRA1950	-0.0051
DE1950		PmDE1950	0	Vmag	9.1	SpType	G5
Double code		Source	43	CatNum	5568	DM	CP-58 7116
DMcomp		BDsup		HD	157220	M HD	0
GC		RA1950rad	4.54320384	DE1950rad	-1.01867992	PmRA2000	-0.0058
PmDE2000	-0.001

Hipparcos

Catalog	H	HIP	85283	Proxy	H	RAhms	17 25 34.47
DEdms	-58 24 38.5	Vmag	9.04	VarFlag		R Vmag	H
RAdeg	261.394	DEdeg	-58.4107	AstroRef	A	Plx	2.02
CCDM	17256-5825	N CCDM	I	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	A	M HIP	AB
Theta	241	Rho	4.098	HD	157220	BD
CD		CP	CP-58 7116	Dm number	-58 7116	VIred	0.99
SpType	G8/K0III+..	R SpType		Coord arcsec 2000	172534.47-582438.5

Hipparcos 2

HIP	85283	Sn	15	So	3	Nc	2
RArad	4.5621794537	DErad	-1.0194588149	Plx	2.21	PmRA	-9.31
PmDE	-19.33	E RArad	1.27	E DErad	1.02	E Plx	1.55
E pmRA	1.5	E pmDE	1.11	Hpmag	9.1952	E Hpmag	0.0022
SHp	0.02	VA	0	BV	0.837	E BV	0.03
VI	0.86

CCDM

Ccdm	17256-5825	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-1.78	DDEs	22.7
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	9.1	Sp	G5	PmNote	*
PmRA	-40	PmDE	0	Dm number	-58 7116	Cat1	CPD
Name2	244728	Cat2	SAO	HD	157220	M HD
ADS BDS		M ADS BDS		N IDS		IDS	17169S5819A
HIC	85283

17256-5825 B

Componente originario normalizzato	AB		Coord arcsec 2000	172534.24-582440.6		Mag	10.96		PmRA	-7.00
PmDE	-28.0		Calc delta mag	1.66		Calc coord	yes

CCDM

Ccdm	17256-5825	RComp		Comp	B	Note1
Note2		Discov num	I 594	DRAs		DDEs
R dRAs		Year	1911	Theta	242	Rho	3.9
Obs	2	Vmag	11.1	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS	17169S5819B
HIC	85283