18484-2205 ARA 1899 (HD 173856)

18^h 48^m 26.87^s -22° 04' 50.9" P.A. 261.00 sep 10.9 mag 9.73,12.00 Sp G2/3V

Coord 2000	18484-2205	Discov num	ARA1899	Comp		Coord arcsec 2000	18 48 26.87 -22 04 50.9
Date first	1923	Date last	2016	Obs	8
Pa first	266	Pa last	261.2	P.A. Now (θ)	261.2°
Sep first	11.2	Sep last	10.905	Sep. Now (ρ)	10.905"
Mag pri	9.73	Mag sec	12.00	delta mag (ΔM)	2.27	Spectral class	G2/3V (yellow)
Pri motion ra	-015	Sec motion ra	-016
Pri motion dec	-014	Sec motion dec	-020
Notes

rPM=0.237 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 173856		Constellation	Sagittarius		SAO	187306		Tycho2	6293-00229-1
Gaia DR2	4078908382059211136		HD	173856		DM	CD-2213302

WDS 18484-2205 ARA 1899 (HD 173856) : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Ara1961	Pa -	Aravamudan, S.	1961PASP...73..266A
Ara1961		PASP 73, 266, 1961
Ara1963	Pa -	Aravamudan, S.	.
Ara1963		Pub. Nizamiah Obs. 13, Pt.3, 1963

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
18484-2205	ARA1899		1999	2	261	10.9	9.73	12.00	G2/3V	D	184826.87-220450.9
18484-2205	ARA1899		2010	4	262	10.8	9.73	12.00	G2/3V		184826.87-220450.9
18484-2205	ARA1899		2015	5	261	10.9	9.73	12.00	G2/3V		184826.87-220450.9
18484-2205	ARA1899		2016	8	261	10.9	9.73	12.00	G2/3V		184826.87-220450.9

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

WDS 18484-2205 ARA 1899 (HD 173856) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18484-2205 ARA 1899 (HD 173856) : MEASURES

No records found.

WDS 18484-2205 (HD 173856) : VIRTUAL EYEPIECE

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WDS 18484-2205 (HD 173856) : ALADIN DSS IMAGE @ 18^h 48^m 26.87^s -22° 04' 50.9"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 18484-2205 ARA 1899 (HD 173856) : 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		18484-2205	ARA1899		261	10.9	1
Show		18487-2230	ARA1900		103	12.0	26
Show		18508-2210	BU 1300		254	18.0	34
Show		18463-2224	SEE 360		217	14.7	35
Show		18510-2208	KPP 427		235	3.7	36
Show		18513-2201	HJ 5070		51	9.7	40
Show		18472-2246	DON 923		348	0.6	45
Show		18509-2235	DON 927	AB	68	3.3	46
Show		18509-2235	DON 927	AC	8	9.1	46
Show		18515-2143	DON 928		277	4.9	48
Show		18518-2141	DON 929		329	3.9	52
Show		18516-2235	SHN 236		-1	0.0	53
Show		18524-2225	DON 930		272	0.7	58
Show		18474-2108	B 1889		218	0.8	59
Show		18508-2111	SHN 235		-1	0.2	63
Show		18452-2117	ARA1553		273	10.1	67
Show		18440-2237	RST5453		211	0.1	70
Show		18503-2100	ARA1554		188	9.7	71
Show		18439-2130	KPP4118		341	3.9	72
Show		18433-2225	I 1381		37	1.3	74
Show		18437-2240	DON 919	AB	80	3.4	75
Show		18437-2240	DON 919	AC	306	14.9	75
Show		18536-2235	ARA1902		324	11.2	79
Show		18451-2315	CBL 173		94	25.2	85
Show		18462-2046	I 1030		161	5.9	85
Show		18471-2331	LDS4798		241	5.7	89
Show	Ainalrami	18542-2245	BU 1033	AB	99	2.5	89
Show	Ainalrami	18542-2245	HJ 5072	AC	58	28.0	89
Show		18549-2157	RSS 495	AB	67	21.4	90
Show		18444-2316	ARA2246		194	12.1	91
Show		18483-2033	DON 924		53	1.2	92
Show		18542-2254	TDT1120		27	0.4	95
Show		18541-2259	ALD 71		158	2.1	97
Show		18453-2039	EVS 37	AB	128	3.1	97
Show		18453-2039	EVS 37	AC	67	10.8	97
Show		18453-2039	EVS 37	AD	156	10.6	97
Show		18453-2039	EVS 37	AE	271	11.5	97
Show		18453-2039	EVS 37	AF	330	18.2	97
Show		18453-2039	GAA 14	Aa,Ab	349	0.0	97
Show		18453-2039	KRV 18	AG	250	29.9	97
Show		18453-2039	KRV 18	AH	304	34.9	97
Show		18442-2325	RST3195		191	1.2	100
Show		18555-2239	ARA1903		235	8.2	105
Show		18431-2051	ARA1159		84	11.7	106
Show		18411-2236	ARA1896		327	12.3	106
Show		18556-2241	ARA1904		81	12.4	107
Show		18497-2019	SEE 362			13.8	107
Show		18498-2350	TNN 13	AB	311	6.2	108
Show		18498-2350	TNN 13	AC	234	8.3	108
Show		18421-2307	SHN 38		33	0.2	108
Show		18407-2139	RST5122		189	2.1	111

WDS 18484-2205 : COMPONENTS

	A
B	pa=260.5° sep=10.12"

18484-2205 A

Componente originario normalizzato	AB	Name	HD 173856	Coord arcsec 2000	184826.87-220450.9	Mag	9.73
Spectral class	G2/3V (yellow)	PmRA	-15.00	PmDE	-14.0	SAO	187306
Tycho2	6293-00229-1	HD	173856	DM	CD-2213302

Tycho2

Tycho2	6293-00229-1	Pflag		RAmdeg	282.11196345	DEmdeg	-22.08081541
PmRA	-18.1	PmDE	-15.5	E RAmdeg	18	E DEmdeg	21
E pmRA	1.8	E pmDE	1.7	EpRAm	1988.48	EpDEm	1985.59
Num	7	Q RAmdeg	1.1	Q DEmdeg	1.8	Q pmRA	1.2
Q pmDE	1.8	BTmag	10.516	E BTmag	0.039	VTmag	9.728
E VTmag	0.030	Prox	999	TYC	T	HIP
CCDM		RAdeg	282.11200833	DEdeg	-22.08078139	EpRA 1990	1.74
EpDE 1990	1.67	E RAdeg	19.1	E DEdeg	24.7	Posflg
Corr	-0.2

SAO

SAO	187306	DelFlag		RA1950		PmRA1950	-0.0039
DE1950		PmDE1950	-0.007	Vmag	9.3	SpType	G0
Double code		Source	25	CatNum	13058	DM	CD-2213302
DMcomp		BDsup		HD	173856	M HD	0
GC		RA1950rad	4.91066903	DE1950rad	-0.38636556	PmRA2000	-0.0039
PmDE2000	-0.007

CCDM

Ccdm	18484-2205	RComp		Comp	A	Note1
Note2		Discov num		DRAs	2.75	DDEs	10.0
R dRAs	41	Year		Theta		Rho
Obs	2	Vmag	10.4	Sp	G0	PmNote	*
PmRA	-54	PmDE	-7	Dm number	-22 4865	Cat1	BD
Name2	187306	Cat2	SAO	HD	173856	M HD
ADS BDS		M ADS BDS		N IDS		IDS	18424S2211A
HIC

18484-2205 B

Componente originario normalizzato	AB		Coord arcsec 2000	184826.15-220452.6		Mag	12		PmRA	-16.00
PmDE	-20.0		Calc delta mag	2.27		Calc coord	yes

CCDM

Ccdm	18484-2205	RComp		Comp	B	Note1
Note2		Discov num	ARA1899	DRAs	2.00	DDEs	8.7
R dRAs	41	Year	1923	Theta	263	Rho	11.2
Obs	1	Vmag	12.7	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS	18424S2211B
HIC