18427-2336 BRT 1542

18^h 42^m 40.42^s -23° 35' 46.2" P.A. 282.00 sep 6.4 mag 10.40,10.50 Sp F

Coord 2000	18427-2336	Discov num	BRT1542	Comp		Coord arcsec 2000	18 42 40.42 -23 35 46.2
Date first	1910	Date last	2015	Obs	6
Pa first	284	Pa last	281.6	P.A. Now (θ)	281.6°
Sep first	6.2	Sep last	6.365	Sep. Now (ρ)	6.365"
Mag pri	10.40	Mag sec	10.50	delta mag (ΔM)	0.1	Spectral class	F (yellow-white)
Pri motion ra	+006	Sec motion ra	-084
Pri motion dec	-014	Sec motion dec	+012
Notes

rPM=1.104

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Sagittarius

Tycho2

6859-01614-1

Gaia DR2

4078305952767117184

WDS 18427-2336 BRT 1542 : 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
18427-2336	BRT1542		1998	4	281	6.3	10.39	10.50	F	D	184240.42-233546.2
18427-2336	BRT1542		1999	5	282	6.4	10.39	10.50	F	D	184240.42-233546.2
18427-2336	BRT1542		2010	6	275	6.5	10.40	10.50	F		184240.42-233546.2
18427-2336	BRT1542		2015	6	282	6.4	10.40	10.50	F		184240.42-233546.2

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

WDS 18427-2336 BRT 1542 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18427-2336 BRT 1542 : MEASURES

No records found.

WDS 18427-2336 : VIRTUAL EYEPIECE

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

WDS 18427-2336 : ALADIN DSS IMAGE @ 18^h 42^m 40.42^s -23° 35' 46.2"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 18427-2336 BRT 1542 : 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		18427-2336	BRT1542		282	6.4
Show		18423-2344	ARA2244		225	10.4	11
Show		18425-2323	SHN 233		-1	0.5	13
Show		18419-2329	ARA2243		105	8.6	13
Show		18411-2345	ARA2242		118	6.6	24
Show		18442-2325	RST3195		191	1.2	24
Show		18421-2307	SHN 38		33	0.2	30
Show		18444-2316	ARA2246		194	12.1	31
Show		18401-2322	SHN 232		-1	0.1	38
Show		18451-2315	CBL 173		94	25.2	39
Show		18453-2411	ALD 92		131	5.7	51
Show		18434-2427	RST3193		190	0.6	53
Show		18437-2430	B 401		123	0.5	57
Show		18437-2240	DON 919	AB	80	3.4	58
Show		18437-2240	DON 919	AC	306	14.9	58
Show		18471-2331	LDS4798		241	5.7	60
Show		18440-2237	RST5453		211	0.1	62
Show		18397-2249	SHN 231		-1	0.1	63
Show		18411-2236	ARA1896		327	12.3	63
Show		18390-2259	ARA2241		114	7.3	64
Show		18413-2436	B 399		49	3.5	64
Show		18433-2225	I 1381		37	1.3	72
Show		18374-2337	B 2456		225	8.0	73
Show		18472-2246	DON 923		348	0.6	80
Show		18367-2348	KPP 420		93	3.8	84
Show		18474-2430	BRT3076		94	3.5	85
Show		18377-2244	ARA1893		137	12.5	86
Show		18377-2243	ARA1894		270	7.3	86
Show		18365-2354	ARA2240	AB	317	10.4	87
Show		18365-2354	ARA2240	BC	3	12.6	87
Show		18365-2353	ARA2239		249	8.8	88
Show		18365-2355	ARA2319		3	11.4	88
Show		18364-2353	ARA2238		341	13.6	88
Show		18463-2224	SEE 360		217	14.7	89
Show		18448-2501	CHR 78		192	0.1	90
Show		18363-2355	ARA2237		133	9.7	91
Show		18362-2409	J 2219		313	4.6	95
Show		18498-2350	TNN 13	AB	311	6.2	100
Show		18498-2350	TNN 13	AC	234	8.3	100
Show		18487-2230	ARA1900		103	12.0	107
Show		18349-2326	HDS2636		57	0.3	107
Show		18465-2511	RST3197		156	0.3	109
Show		18352-2427	J 1654		78	3.5	115
Show		18349-2256	ARA2236		38	7.3	115
Show		18381-2156	ARA1895		26	16.0	119
Show		18407-2139	RST5122		189	2.1	120
Show		18386-2149	J 1633	BC	149	7.5	120
Show		18386-2149	J 1633	AB	143	36.8	121
Show		18399-2531	ARG 32	AB	220	7.0	121
Show		18399-2531	ARG 32	AC	285	53.2	121
Show		18399-2531	ARG 32	AD	217	80.2	121

WDS 18427-2336 : COMPONENTS

	A
B	pa=282.6° sep=5.86"

18427-2336 A

Componente originario normalizzato	AB		Coord arcsec 2000	184240.42-233546.2		Mag	10.4		Spectral class	F (yellow-white)
PmRA	6.00		PmDE	-14.0		Tycho2	6859-01614-1

Tycho2

Tycho2	6859-01614-1	Pflag		RAmdeg	280.66843290	DEmdeg	-23.59619073
PmRA	8.8	PmDE	-13.4	E RAmdeg	27	E DEmdeg	38
E pmRA	2.8	E pmDE	2.7	EpRAm	1990.47	EpDEm	1988.76
Num	3	Q RAmdeg	0.9	Q DEmdeg	0.8	Q pmRA	0.9
Q pmDE	0.8	BTmag	11.103	E BTmag	0.055	VTmag	10.388
E VTmag	0.046	Prox	999	TYC	T	HIP
CCDM		RAdeg	280.66841139	DEdeg	-23.59616000	EpRA 1990	1.76
EpDE 1990	1.67	E RAdeg	26.7	E DEdeg	38.7	Posflg
Corr	0.0

CCDM

Ccdm	18427-2336	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-1.52	DDEs	14.4
R dRAs	41	Year		Theta		Rho
Obs	2	Vmag	11.3	Sp	F	PmNote	*
PmRA	89	PmDE	-29	Dm number	-2314643	Cat1	CD
Name2	187168	Cat2	SAO	HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS	18366S2341A
HIC

18427-2336 B

Componente originario normalizzato	AB		Coord arcsec 2000	184240.00-233544.9		Mag	10.5		PmRA	-84.00
PmDE	12.0		Calc delta mag	0.1		Calc coord	yes

CCDM

Ccdm	18427-2336	RComp		Comp	B	Note1
Note2		Discov num	BRT1542	DRAs	-2.10	DDEs	16.0
R dRAs	41	Year	1910	Theta	285	Rho	5.4
Obs	2	Vmag	11.4	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS	18366S2341B
HIC