12025-3055 BRT 2990

12^h 02^m 33.95^s -30° 55' 19.3" P.A. 72.00 sep 3.5 mag 10.60,12.40

Coord 2000	12025-3055	Discov num	BRT2990	Comp		Coord arcsec 2000	12 02 33.95 -30 55 19.3
Date first	1913	Date last	2016	Obs	5
Pa first	74	Pa last	72.4	P.A. Now (θ)	72.4°
Sep first	4.0	Sep last	3.49	Sep. Now (ρ)	3.49"
Mag pri	10.60	Mag sec	12.40	delta mag (ΔM)	1.8	Spectral class
Pri motion ra	-050	Sec motion ra	+017
Pri motion dec	-015	Sec motion dec	+003
Notes	R (Red magnitudes)

rPM=1.329

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Hydra

Tycho2

7231-01114-1

Gaia DR2

3467485981787684480

WDS 12025-3055 BRT 2990 : 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
12025-3055	BRT2990		1913	1	74	4.0	11.54	13.04		B	120234.10-305518.6
12025-3055	BRT2990		2000	2	73	3.6	11.54	13.04		B	120234.10-305518.6
12025-3055	BRT2990		2015	4	73	3.5	10.60	12.40		R	120233.95-305519.3
12025-3055	BRT2990		2016	5	72	3.5	10.60	12.40		R	120233.95-305519.3

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

WDS 12025-3055 BRT 2990 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 12025-3055 BRT 2990 : MEASURES

No records found.

WDS 12025-3055 : 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 12025-3055 : ALADIN DSS IMAGE @ 12^h 02^m 33.95^s -30° 55' 19.3"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 12025-3055 BRT 2990 : 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		12025-3055	BRT2990		72	3.5
Show		12011-3048	LDS5746		133	201.6	19
Show		12040-3037	DAW 137		88	2.2	26
Show		12046-3111	RSS 281	AB	160	8.6	31
Show		12015-3123	TDS8177		267	0.5	31
Show		12039-3026	DAW 136		266	2.3	35
Show		11598-3036	UC 2248		114	15.4	42
Show		12004-3020	DAW 135	AB	55	3.7	45
Show		12066-3137	RUZ 2		7	5.6	67
Show		12028-2947	RUZ 4		39	85.4	69
Show		12064-3145	TDS8224		189	0.6	70
Show		12053-2953	RST1643		66	2.0	72
Show		11575-3131	B 1711		172	2.7	75
Show		12064-3153	RST2778		205	0.4	76
Show		12011-3222	COO 134		167	5.0	89
Show		12064-3217	TVB 248		2	14.3	96
Show		12008-3230	RSS 277		185	4.7	98
Show		12102-3104	RST1650		86	2.4	99
Show		11559-3005	KPP1003		268	8.1	101
Show		12051-2920	SKF1912		318	40.6	101
Show		12003-3231	LDS4164		90	180.9	101
Show		11581-2930	LDS 375		347	9.2	102
Show		12056-3237	KPP1884		252	14.7	109
Show		12057-3237	TSN 84		24	14.5	110
Show		11567-3216	TOK 146	BE	113	4.8	110
Show		11567-3216	DUN 116	BC	359	21.8	110
Show		11567-3216	DUN 116	AB	82	18.7	111
Show		11567-3216	DUN 116	AC	38	30.0	111
Show		11567-3216	CVN 86	AF	178	5.8	111
Show		12062-3233	DAM 571		2	10.9	112
Show		12007-3247	RUZ 3		105	8.7	115
Show		12070-3235	RST1645		47	2.6	115
Show		11552-2951	B 1201		289	2.2	116
Show		12112-3132	BRT2992		34	2.7	117
Show		12109-3010	B 1208		294	4.2	118
Show		12117-3036	HJ 4505	AB	276	10.1	120
Show		12117-3036	KNP 2	AC	116	37.3	120
Show		12115-3024	TDS8261		290	0.5	120
Show		11546-3208	I 1215		236	0.6	125
Show		12061-3258	HJ 4495	AB	319	5.7	131
Show		12061-3258	HJ 4495	AC	46	46.0	131
Show		11526-3129	RUZ 6		263	14.0	132
Show		12110-2934	BRT2991		132	5.4	136
Show		12044-3316	LDS 381		173	15.5	143
Show		11545-2917	LDS4157		37	14.7	144
Show		12029-3319	LDS4170			3.0	145
Show		12001-2834	RST1628		218	1.3	145
Show		12027-3323	BRT1672		25	3.6	148
Show		11513-3124	TVB 244		45	4.2	149
Show		11552-3250	LDS5745		64	137.0	150
Show		11553-3255	DAM1443		165	4.4	152

WDS 12025-3055 : COMPONENTS

	A
B	pa=69.7° sep=3.04"

12025-3055 A

Componente originario normalizzato	AB		Coord arcsec 2000	120233.95-305519.3		Mag	10.6		PmRA	-50.00
PmDE	-15.0		Tycho2	7231-01114-1		DM	CD-30 9625

Tycho2

Tycho2	7231-01114-1	Pflag		RAmdeg	180.64149624	DEmdeg	-30.92201718
PmRA	-22.0	PmDE	-7.1	E RAmdeg	39	E DEmdeg	47
E pmRA	2.8	E pmDE	2.5	EpRAm	1989.12	EpDEm	1986.86
Num	3	Q RAmdeg	0.2	Q DEmdeg	1.4	Q pmRA	0.1
Q pmDE	1.4	BTmag	11.543	E BTmag	0.078	VTmag	10.761
E VTmag	0.063	Prox	999	TYC	T	HIP
CCDM		RAdeg	180.64155556	DEdeg	-30.92200056	EpRA 1990	1.69
EpDE 1990	1.60	E RAdeg	39.9	E DEdeg	48.1	Posflg
Corr	0.0

12025-3055 B

Componente originario normalizzato	AB		Coord arcsec 2000	120234.17-305518.2		Mag	12.4		PmRA	17.00
PmDE	3.0		Calc delta mag	1.8		Calc coord	yes