17229-5801 HDO 270 AB (HD 156768)

17^h 22^m 55.23^s -58° 00' 37.1" P.A. 184.00 sep 1.8 mag 6.00,9.41 Sp G8Ib-II dist. 335.57 pc (1094.63 l.y.)

Coord 2000	17229-5801	Discov num	HDO 270	Comp	AB	Coord arcsec 2000	17 22 55.23 -58 00 37.1
Date first	1891	Date last	2016	Obs	9
Pa first	190	Pa last	184.3	P.A. Now (θ)	184.3°
Sep first	4.0	Sep last	1.777	Sep. Now (ρ)	1.777"
Mag pri	6.00	Mag sec	9.41	delta mag (ΔM)	3.41	Spectral class	G8Ib-II (yellow)
Pri motion ra	+002	Sec motion ra	-006
Pri motion dec	-012	Sec motion dec	-016
Notes

rPM=0.523

Nature of this double is uncertain.

17229-5801 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 156768	244678	17 22 55 -58 00 37	HDO 270 AB	2016	9	184	1.8	6.00	9.41	3.41		<===
Show		244678	17 22 55 -58 00 37	HDO 270 AC	2000	3	153	40.0	6.00	12.00	6.00

Triple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Name	HD 156768	Constellation	Ara	SAO	244678	HIP	85049
Tycho2	8736-03859-1	Gaia DR2	5916102259498670208	HD	156768	HR	6438
GC	23439	CP	CP-57 8478	Distance	335.57	Distance ly	1094.63

WDS 17229-5801 HDO 270 AB (HD 156768) : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
HdO1882a	Mb -	Harvard Obs.	1882AnHar..13...17.
HdO1882a		Harvard Ann. 13, 17, 1882
HdO1882b	Ma j	Harvard Obs. (measure by Alden, G.I.)	1882AnHar..13...17.
HdO1882b		Harvard Ann. 13, 17, 1882
HdO1882c	Ma -	Harvard Obs. (measure by Davis, W.M.)	1882AnHar..13...17.
HdO1882c		Harvard Ann. 13, 17, 1882
HdO1906A	Ma -	Harvard Obs.	1906QB821.B972.....
HdO1906A		cited in BDS (Burnham Double Star Cat., 1906)
HdO9999	Ma -	Harvard Obs.	...................
HdO9999		Unpublished, manuscript or reference not found.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
17229-5801	HDO 270	AB	1991	7	183	1.8	6.00	9.41	G8Ib-II	D	172255.23-580037.1
17229-5801	HDO 270	AB	2008	8	189	1.7	6.00	9.41	G8Ib-II		172255.23-580037.1
17229-5801	HDO 270	AB	2016	9	184	1.8	6.00	9.41	G8Ib-II		172255.23-580037.1

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

WDS 17229-5801 HDO 270 AB (HD 156768) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 17229-5801 HDO 270 AB (HD 156768) : MEASURES

No records found.

WDS 17229-5801 (HD 156768) : 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 17229-5801 (HD 156768) : ALADIN DSS IMAGE @ 17^h 22^m 55.23^s -58° 00' 37.1"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 17229-5801 HDO 270 AB (HD 156768) : 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		17229-5801	HDO 270	AB	184	1.8
Show		17229-5801	HDO 270	AC	153	40.0
Show		17228-5828	COO 213	AB	285	9.2	28
Show		17228-5828	COO 213	AC	92	30.8	28
Show		17256-5825	I 594		241	4.1	32
Show		17206-5730	BRT2822		344	3.6	36
Show		17188-5734	RST 916		214	0.4	43
Show		17241-5716	BRT2823		107	4.4	46
Show		17177-5824	BRT3182		50	2.6	49
Show		17234-5857	TDT 334		157	1.6	57
Show		17222-5902	HJ 4934		269	14.6	62
Show		17301-5733	HJ 4950		306	10.3	64
Show		17254-5903	R 300		348	8.8	66
Show		17248-5913	I 385	AB	117	0.4	74
Show		17248-5913	WSI 87	AD	271	0.3	74
Show		17248-5913	I 385	AE	109	28.1	74
Show		17248-5913	I 385	AB,C	210	17.3	74
Show		17141-5736	TDT 278		147	0.8	76
Show		17244-5919	JSP 717		332	3.6	80
Show		17249-5924	HDS2458		354	1.0	85
Show		17147-5857	TDT 285		190	0.5	86
Show		17130-5836	HJ 4920		322	2.9	86
Show		17206-5926	HJ 4931		255	0.8	88
Show		17341-5824	RST5086		17	2.9	92
Show		17246-5629	HRG 123		296	29.2	93
Show		17215-5628	HJ 4939		227	29.6	94
Show		17207-5625	FIN 255	AB	108	0.4	97
Show		17207-5625	HJ 4938	AB,C	109	25.0	97
Show		17181-5932	RST5075		224	1.5	99
Show		17254-5623	HJ 4942	AB	326	18.4	100
Show		17254-5623	HJ 4942	AC	64	41.2	100
Show		17254-5623	ANT 5	AD	39	47.2	100
Show		17308-5920	JSP 931		186	7.5	101
Show		17252-5621	BRT3318		105	2.7	102
Show		17211-5944	RST5077		314	2.1	105
Show		17192-5942	HDO 312		275	27.3	106
Show		17251-5613	RST 923		337	5.4	110
Show		17107-5710	RST 903		223	0.3	111
Show		17089-5811	TDT 233		238	0.7	112
Show		17228-5608	RST 921		40	1.2	113
Show		17118-5919	JSP 708		273	1.5	117
Show		17231-5958	RST5078		45	0.5	118
Show		17255-5604	RST 925		73	0.6	119
Show		17309-5621	FIN 257		122	0.1	120
Show		17360-5903	RST5089		139	2.0	121
Show		17335-5636	BRT3185		306	5.7	121
Show		17240-6002	R 299		342	10.7	122
Show		17253-5600	HDS2459		174	0.2	123
Show		17369-5706	RST 942		282	1.0	126
Show		17317-5618	LDS 600		146	4.5	127
Show		17315-5948	JSP 932		171	5.2	127

WDS 17229-5801 : COMPONENTS

	A	B
B	pa=182.3° sep=1.77"
C	pa=164.8° sep=36.87"	pa=164.0° sep=35.18"

17229-5801 A

Name	HD 156768	Coord arcsec 2000	172255.23-580037.1	Mag	6	Spectral class	G8Ib (yellow)
PmRA	2.00	PmDE	-12.0	SAO	244678	HIP	85049
Tycho2	8736-03859-1	HD	156768	HR	6438	GC	23439
CP	CP-57 8478

Tycho2

Tycho2	8736-03859-1	Pflag		RAmdeg	260.73010969	DEmdeg	-58.01031935
PmRA	1.9	PmDE	-12.4	E RAmdeg	4	E DEmdeg	7
E pmRA	5.0	E pmDE	4.7	EpRAm	1991.97	EpDEm	1991.55
Num	3	Q RAmdeg	0.8	Q DEmdeg	1.6	Q pmRA	0.7
Q pmDE	1.5	BTmag	7.341	E BTmag	0.017	VTmag	5.999
E VTmag	0.010	Prox	18	TYC	T	HIP	85049
CCDM	A	RAdeg	260.73010167	DEdeg	-58.01029028	EpRA 1990	1.98
EpDE 1990	1.57	E RAdeg	3.5	E DEdeg	7.0	Posflg
Corr	0.2

SAO

SAO	244678	DelFlag		RA1950		PmRA1950	-0.0019
DE1950		PmDE1950	-0.01	Vmag	5.9	SpType	K0
Double code		Source	70	CatNum	23439	DM	CP-57 8478
DMcomp		BDsup		HD	156768	M HD	0
GC	23439	RA1950rad	4.53175242	DE1950rad	-1.011638	PmRA2000	-0.0026
PmDE2000	-0.011

Hipparcos

Catalog	H	HIP	85049	Proxy	H	RAhms	17 22 55.23
DEdms	-58 00 37.0	Vmag	5.86	VarFlag		R Vmag	G
RAdeg	260.73	DEdeg	-58.0103	AstroRef	A	Plx	4.15
CCDM	17229-5801	N CCDM	I	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	A	M HIP	AB
Theta	184	Rho	1.811	HD	156768	BD
CD		CP	CP-57 8478	Dm number	-57 8478	VIred	1.04
SpType	G8Ib/II	R SpType		Coord arcsec 2000	172255.23-580037.0

Hipparcos 2

HIP	85049	Sn	15	So	3	Nc	2
RArad	4.5505989962	DErad	-1.012470544	Plx	2.98	PmRA	-6.52
PmDE	-14.35	E RArad	0.4	E DErad	0.35	E Plx	0.52
E pmRA	0.49	E pmDE	0.39	Hpmag	6.0159	E Hpmag	0.0008
SHp	0.008	VA	0	BV	1.075	E BV	0.001
VI	1.04

CCDM

Ccdm	17229-5801	RComp		Comp	A	Note1
Note2		Discov num		DRAs	1.06	DDEs	23.4
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	6.0	Sp	K0	PmNote	*
PmRA	-16	PmDE	-10	Dm number	-57 8478	Cat1	CPD
Name2	244678	Cat2	SAO	HD	156768	M HD
ADS BDS		M ADS BDS		N IDS		IDS	17143S5755A
HIC	85049

17229-5801 B

Coord arcsec 2000	172255.22-580038.9		Mag	9.41		Spectral class	II		PmRA	-6.00
PmDE	-16.0		Calc delta mag	3.41		Calc coord	yes

CCDM

Ccdm	17229-5801	RComp		Comp	B	Note1
Note2		Discov num	HDO 270	DRAs		DDEs
R dRAs		Year	1900	Theta	187	Rho	2.0
Obs	4	Vmag	9.6	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS	17143S5755B
HIC	85049

17229-5801 C

Coord arcsec 2000	172256.44-580112.7		Mag	12		Spectral class	II		PmRA	4.00
PmDE	-4.0		Calc delta mag	6		Calc coord	yes