17477-5547 LDS 610 (HD 161255)

17^h 47^m 39.67^s -55° 47' 26.2" P.A. 243.00 sep 41.2 mag 9.15,12.02 Sp K1III dist. 45.66 pc (148.94 l.y.)

Coord 2000	17477-5547	Discov num	LDS 610	Comp		Coord arcsec 2000	17 47 39.67 -55 47 26.2
Date first	1920	Date last	2016	Obs	7
Pa first	225	Pa last	243.2	P.A. Now (θ)	243.2°
Sep first	40.0	Sep last	41.21	Sep. Now (ρ)	41.21"
Mag pri	9.15	Mag sec	12.02	delta mag (ΔM)	2.87	Spectral class	K1III (yellow-orange)
Pri motion ra	-011	Sec motion ra	-036
Pri motion dec	-167	Sec motion dec	-084
Notes

rPM=0.518

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 161255	Constellation	Ara	SAO	245027	HIP	87083
Tycho2	8746-02209-1	Gaia DR2	5920369945168735616	HD	161255	CP	CP-55 8304
Distance	45.66	Distance ly	148.94

WDS 17477-5547 LDS 610 (HD 161255) : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
LDS		Luyten p.m. catalog (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
17477-5547	LDS 610		1920	1	225	40.0	9.10	11.20	K1III		174739.69-554724.7
17477-5547	LDS 610		1999	3	243	41.3	9.15	12.02	K1III		174739.67-554726.2
17477-5547	LDS 610		2010	4	243	41.2	9.15	12.02	K1III		174739.67-554726.2
17477-5547	LDS 610		2015	5	243	41.2	9.15	12.02	K1III		174739.67-554726.2
17477-5547	LDS 610		2016	7	243	41.2	9.15	12.02	K1III		174739.67-554726.2

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

WDS 17477-5547 LDS 610 (HD 161255) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 17477-5547 LDS 610 (HD 161255) : MEASURES

No records found.

WDS 17477-5547 (HD 161255) : VIRTUAL EYEPIECE

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

WDS 17477-5547 (HD 161255) : ALADIN DSS IMAGE @ 17^h 47^m 39.67^s -55° 47' 26.2"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 17477-5547 LDS 610 (HD 161255) : 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		17477-5547	LDS 610		243	41.2
Show		17469-5601	HJ 4971		195	5.9	16
Show		17444-5533	KPP1903		332	15.0	32
Show		17427-5607	TDT 476		324	1.0	46
Show		17424-5516	BRT2582		6	6.2	55
Show		17466-5451	TDT 500		233	1.5	58
Show		17436-5634	RST3121		67	1.6	58
Show		17464-5446	TDT 498		144	0.6	63
Show		17400-5546	RST 943	AB	205	2.1	65
Show		17400-5546	HLN 43	AC	119	3.0	65
Show		17402-5533	TDT 459		324	0.6	65
Show		17480-5442	I 612		148	7.0	66
Show		17395-5609	TDT 455		214	2.0	72
Show		17555-5618	RST3132		147	1.7	73
Show		17436-5701	HDO 276		104	1.1	82
Show		17500-5428	BRT2096		215	3.3	83
Show		17534-5656	TDS 890		54	1.1	84
Show		17572-5523	RMK 22		97	2.4	85
Show		17581-5554	RST 955		107	5.3	88
Show		17547-5652	BRT2824		70	4.5	88
Show		17416-5659	RST3118		150	0.6	88
Show		17435-5424	WFC 198		332	6.1	91
Show		17369-5550	TDT 434		120	0.4	91
Show		17388-5456	RST3111		175	0.6	92
Show		17444-5416	BRT2094		172	3.9	96
Show		17398-5439	HDS2498		206	0.3	96
Show		17362-5538	HJ 4959		114	19.4	98
Show		17584-5510	RST 956		200	0.5	99
Show		17451-5408	R 303		108	3.6	102
Show		17580-5645	BRT2825	AB	90	4.1	105
Show		17580-5645	LDS 616	AC	46	17.9	105
Show		17449-5733	HLN 44	Aa,Ab	308	0.2	108
Show		17449-5733	HDO 277	AB	252	32.2	108
Show		17387-5428	BVD 121		185	39.7	111
Show		17462-5353	BRT2095		331	4.7	116
Show		17418-5402	HJ 4969		41	19.4	118
Show		17340-5526	TDT 418		159	0.7	118
Show		17369-5706	RST 942		282	1.0	119
Show		17427-5740	RST5544		166	0.8	120
Show		17390-5413	TDT 450		202	2.0	121
Show		18003-5452	RST3138		320	1.3	122
Show		17433-5743	I 377		327	13.7	122
Show		17514-5350	VSP 51		122	0.2	122
Show		17442-5750	RST 944		354	0.9	126
Show		17342-5454	TOK 419		82	0.6	127
Show		17411-5354	SHN 223		-1	0.1	128
Show		17335-5636	BRT3185		306	5.7	128
Show		17326-5519	BRT3184		143	5.4	131
Show		18030-5604	FIN 260		303	0.7	131
Show		17415-5348	HDS2502		72	0.1	131
Show		18032-5549	RST 957		274	0.7	132

WDS 17477-5547 : COMPONENTS

	A
B	pa=228.1° sep=27.80"

17477-5547 A

Componente originario normalizzato	AB	Name	HD 161255	Coord arcsec 2000	174739.67-554726.2	Mag	9.15
Spectral class	K1III (yellow-orange)	PmRA	-11.00	PmDE	-167.0	SAO	245027
HIP	87083	Tycho2	8746-02209-1	HD	161255	CP	CP-55 8304

Tycho2

Tycho2	8746-02209-1	Pflag		RAmdeg	266.91530148	DEmdeg	-55.79061132
PmRA	-12.0	PmDE	-170.3	E RAmdeg	11	E DEmdeg	14
E pmRA	1.5	E pmDE	1.6	EpRAm	1989.76	EpDEm	1988.66
Num	8	Q RAmdeg	0.7	Q DEmdeg	0.8	Q pmRA	0.7
Q pmDE	0.8	BTmag	10.110	E BTmag	0.029	VTmag	9.150
E VTmag	0.019	Prox	999	TYC	T	HIP	87083
CCDM		RAdeg	266.91534889	DEdeg	-55.79022250	EpRA 1990	1.83
EpDE 1990	1.78	E RAdeg	11.6	E DEdeg	15.2	Posflg
Corr	0.1

SAO

SAO	245027	DelFlag		RA1950		PmRA1950	0.0014
DE1950		PmDE1950	-0.177	Vmag	9.1	SpType	G5
Double code		Source	42	CatNum	6999	DM	CP-55 8304
DMcomp		BDsup		HD	161255	M HD	0
GC		RA1950rad	4.64024639	DE1950rad	-0.97338282	PmRA2000	0.001
PmDE2000	-0.179

Hipparcos

Catalog	H	HIP	87083	Proxy		RAhms	17 47 39.69
DEdms	-55 47 24.7	Vmag	9.08	VarFlag		R Vmag	G
RAdeg	266.915	DEdeg	-55.7902	AstroRef		Plx	21.65
CCDM	17477-5548	N CCDM	I	Nsys	1	Ncomp	1
MultFlag		Source		Qual		M HIP
Theta		Rho		HD	161255	BD
CD		CP	CP-55 8304	Dm number	-55 8304	VIred	0.84
SpType	K1III	R SpType		Coord arcsec 2000	174739.69-554724.7

Hipparcos 2

HIP	87083	Sn	5	So	0	Nc	1
RArad	4.6585517642	DErad	-0.9737226176	Plx	21.9	PmRA	-13.47
PmDE	-169.74	E RArad	1.16	E DErad	0.91	E Plx	1.46
E pmRA	1.48	E pmDE	0.96	Hpmag	9.227	E Hpmag	0.0024
SHp	0.017	VA	0	BV	0.82	E BV	0.002
VI	0.86

17477-5547 B

Componente originario normalizzato	AB		Coord arcsec 2000	174737.22-554744.8		Mag	12.02		PmRA	-36.00
PmDE	-84.0		Calc delta mag	2.87		Calc coord	yes