18176-3442 BRT 1766

18^h 17^m 34.55^s -34° 41' 52.5" P.A. 261.00 sep 2.4 mag 9.40,12.80 Sp K2

Coord 2000	18176-3442	Discov num	BRT1766	Comp		Coord arcsec 2000	18 17 34.55 -34 41 52.5
Date first	1913	Date last	2016	Obs	2
Pa first	277	Pa last	261.2	P.A. Now (θ)	261.2°
Sep first	2.6	Sep last	2.4	Sep. Now (ρ)	2.4"
Mag pri	9.40	Mag sec	12.80	delta mag (ΔM)	3.4	Spectral class	K2 (yellow-orange)
Pri motion ra	-009	Sec motion ra
Pri motion dec	-008	Sec motion dec
Notes	S I (Parallax indidates non-physical, Identification uncertain)

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Sagittarius

Tycho2

7400-01294-1

Gaia DR2

4038577092963995904

321557

WDS 18176-3442 BRT 1766 : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Brt1926a	Pa -	Barton, S.G.	1926AJ.....36..155B
Brt1926a		AJ 36, 155, 1926 (BRT 1 - BRT 62)
Brt1926b	Pa j	Barton, S.G.	1926AJ.....37...57B
Brt1926b		AJ 37, 57, 1926 (BRT 63 - BRT 116)
Brt1928	Pa -	Barton, S.G.	1928AJ.....38..168B
Brt1928		AJ 38, 168, 1928 (BRT 117 - BRT 230)
Brt1929a	Pa -	Barton, S.G.	1929AN....235..425B
Brt1929a		AN 235, 425, 1929 (BRT 294 - BRT 322)
Brt1929b	Pa -	Barton, S.G.	1929AJ.....39...93B
Brt1929b		AJ 39, 93, 1929 (BRT 231 - BRT 293)
Brt1929c	Ma j	Barton, S.G.	1929AJ.....39..120B
Brt1929c		AJ 39, 120, 1929
Brt1930	Pa -	Barton, S.G.	1930AJ.....40..181B
Brt1930		AJ 40, 181, 1930 (BRT 323 - BRT 348)
Brt1931	Pa -	Barton, S.G. (BRT 349 - BRT 562)	1931AJ.....41...35B
Brt1931		AJ 41, 35, 1931 (no measures for BRT 529 - BRT 562)
Brt1932a	Pa -	Barton, S.G.	1932AJ.....42...93B
Brt1932a		AJ 42, 93, 1932 (BRT 604 - BRT 636)
Brt1932b	Ma -	Barton, S.G.	1932PFAO....5a...1B
Brt1932b	+Pa	Pub. Univ. Penn. 5, Pt.1, Sec.2, 1932 (BRT 563 - BRT 603, BRT1928, etc.)
Brt1932C	Ma -	Barton, S.G.	1932QB821.A43......
Brt1932C		cited in ADS (Aitken Double Star Cat.), 1932
Brt1933	Pa -	Barton, S.G.	1933AN....250...49B
Brt1933		AN 250, 49, 1933
Brt1933		(BRT 637 - BRT1134; very approximate dates added for pairs listed with only
Brt1933		secondary magnitudes and no astrometry)
Brt1934	Pa -	Barton, S.G.	1934AJ.....43..119B
Brt1934	+Ma	AJ 43, 119, 1934
Brt1935a	Pa -	Barton, S.G.	1935AJ.....44..105B
Brt1935a	+Ma	AJ 44, 105, 1935
Brt1935b	Pa -	Barton, S.G.	1935AN....256..357B
Brt1935b		AN 256, 357, 1935
Brt1936a	Ma -	Barton, S.G.	1936AJ.....45...33B
Brt1936a	+Pa	AJ 45, 33, 1936
Brt1936b	Pa -	Barton, S.G.	1936AJ.....45...99B
Brt1936b	+Ma	AJ 45, 99, 1936
Brt1937a	Pa -	Barton, S.G.	1937AN....263..347B
Brt1937a		AN 263, 347, 1937
Brt1937b	Pa -	Barton, S.G.	1937AN....263..383B
Brt1937b		AN 263, 383, 1937
Brt1938	Ma -	Barton, S.G.	1938AJ.....47..133B
Brt1938	+Pa	AJ 47, 133, 1938
Brt1939a	Ma -	Barton, S.G.	1939PFAO....5b...1B
Brt1939a	+Pa	Pub. Univ. Penn. 5, Pt.2, Sec.2, 1939
Brt1939b	Pa -	Barton, S.G.	1939AJ.....48..145B
Brt1939b	+Ma	AJ 48, 145, 1939
Brt1941	Pa -	Barton, S.G.	1941PASP...55..339B
Brt1941		PASP 55, 339, 1941
Brt1942	Pa -	Barton, S.G.	1942AJ.....50...11B
Brt1942		AJ 50, 11, 1942
Brt1947	Ma -	Barton, S.G.	1947AJ.....52..178B
Brt1947	+Pa	AJ 52, 178, 1947
Brt1949	Ma -	Barton, S.G.	1949PFAO....7a...1B
Brt1949		Pub. Univ. Penn. 7, Pt.1, Sec.1, 1949
Brt1951	Pa -	Barton, S.G.	1951AJ.....55..218B
Brt1951		AJ 55, 218, 1951
Brt1957	Ma -	Barton, S.G.	1957QB4.P5v7ps3....
Brt1957		Pub. Univ. Penn. 7, Pt.3, 15, 1957
Brt9999	Ma -	Barton, S.G.	...................
Brt9999	+Pa	Unpublished, manuscript or reference not found.
Brt2002A	Ma -	Barton, S.G.	2002yCat.1275....0D
Brt2002A	+Pa	cited in CCDM

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
18176-3442	BRT1766		1913	1	277	2.6	10.34	12.30	K2		181734.55-344152.5
18176-3442	BRT1766		2016	2	261	2.4	9.40	12.80	K2	S I	181734.55-344152.5

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

WDS 18176-3442 BRT 1766 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18176-3442 BRT 1766 : MEASURES

No records found.

WDS 18176-3442 : VIRTUAL EYEPIECE

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

WDS 18176-3442 : ALADIN DSS IMAGE @ 18^h 17^m 34.55^s -34° 41' 52.5"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 18176-3442 BRT 1766 : 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		18176-3442	BRT1766		261	2.4
Show		18185-3441	TOK 902		29	0.2	12
Show		18167-3447	VVV 53		8	4.5	12
Show		18188-3448	RST3171		234	1.1	16
Show		18185-3503	OL 17		252	6.1	25
Show		18150-3448	BRT1761		145	3.8	33
Show		18191-3509	OL 18		296	1.1	34
Show		18176-3406	HJ 5036	AB	85	38.7	36
Show		18176-3406	HJ 5036	AC	41	93.8	36
Show		18176-3406	HJ 5036	CD	346	22.4	37
Show		18153-3413	BRT1762		13	4.8	40
Show		18206-3424	JSP 773		337	1.0	42
Show		18205-3420	JSP 939		27	3.3	43
Show		18202-3517	RST3174		306	1.5	48
Show		18190-3357	BRT1768		72	4.3	49
Show		18187-3534	LDS 636		6	20.8	54
Show		18203-3526	TOK 801		7	0.1	56
Show		18136-3416	JSP 938	AB	149	6.1	56
Show		18136-3416	SIN 107	AC	55	25.4	56
Show		18180-3538	B 425	AB	51	2.9	57
Show		18180-3538	B 425	AC	356	7.3	57
Show		18155-3532	BRT1763		224	3.2	57
Show		18142-3525	B 424	AB	82	1.0	60
Show		18142-3525	B 424	AC	143	42.5	60
Show		18142-3525	B 424	CD	41	2.8	60
Show		18127-3433	RST3162		206	0.3	61
Show		18221-3507	BRT1772		195	2.8	61
Show		18129-3513	SLR 13		47	2.4	66
Show		18126-3417	JSP 771		304	2.9	67
Show		18233-3408	VVV 56		193	17.3	79
Show		18188-3325	BRT1767		209	4.2	79
Show		18239-3421	ARY 76		10	18.9	82
Show		18241-3430	TDT 835		76	0.6	82
Show		18213-3333	B 937		142	0.8	83
Show	Kaus Australis	18242-3423	SEE 351	AB	314	39.9	84
Show	Kaus Australis	18242-3423	GOL 2	AC	142	2.4	84
Show	Kaus Australis	18242-3423	TOK 617	AD	36	862.9	84
Show		18202-3601	BRT1769		1	4.1	86
Show		18240-3516	BRT1773		295	3.6	86
Show		18109-3414	RST3159		101	4.8	88
Show		18131-3333	B 933		349	1.8	89
Show		18248-3424	SKF2065		164	23.3	91
Show		18100-3458	LDS 627		313	9.0	94
Show		18100-3452	JSP 937		352	7.3	95
Show		18246-3523	JSP 774		72	4.3	96
Show		18108-3529	B 1352		224	0.2	96
Show		18244-3349	BRT1775		147	3.2	99
Show		18101-3524	BRT1759		6	3.3	102
Show		18243-3539	BRT1774		55	3.5	102
Show		18175-3300	PRO 201		205	7.8	103
Show		18248-3535	BRT3331		192	5.5	104

WDS 18176-3442 : COMPONENTS

	A
B	pa=259.3° sep=1.98"

18176-3442 A

Componente originario normalizzato	AB		Coord arcsec 2000	181734.55-344152.5		Mag	9.4		Spectral class	K2 (yellow-orange)
PmRA	-9.00		PmDE	-8.0		Tycho2	7400-01294-1		HD	321557

Tycho2

Tycho2	7400-01294-1	Pflag		RAmdeg	274.39399698	DEmdeg	-34.69792691
PmRA	-9.1	PmDE	-8.4	E RAmdeg	39	E DEmdeg	51
E pmRA	2.5	E pmDE	2.6	EpRAm	1988.61	EpDEm	1986.41
Num	3	Q RAmdeg	0.6	Q DEmdeg	1.5	Q pmRA	0.6
Q pmDE	1.5	BTmag	12.095	E BTmag	0.163	VTmag	10.344
E VTmag	0.050	Prox	999	TYC	T	HIP
CCDM		RAdeg	274.39402250	DEdeg	-34.69790778	EpRA 1990	1.78
EpDE 1990	1.81	E RAdeg	40.1	E DEdeg	52.9	Posflg
Corr	-0.1

CCDM

Ccdm	18176-3442	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-1.36	DDEs	7.2
R dRAs	41	Year		Theta		Rho
Obs	2	Vmag	11.0	Sp		PmNote
PmRA		PmDE		Dm number	-3412671	Cat1	CD
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS	18109S3444A
HIC

18176-3442 B

Componente originario normalizzato	AB		Coord arcsec 2000	181734.39-344152.9		Mag	12.8		Calc delta mag	3.4
Calc coord	yes

CCDM

Ccdm	18176-3442	RComp		Comp	B	Note1
Note2		Discov num	BRT1766	DRAs		DDEs
R dRAs		Year	1913	Theta	277	Rho	2.7
Obs	1	Vmag	13.0	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS	18109S3444B
HIC