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Current system
12278-3025
BRT 2994


Nearby doubles
7' : 12275-3029
LDS5753

19' : 12278-3044
TDS8393

25' : 12267-3005
LDS5752

44' : 12309-3041
I 514

52' : 12238-3020
SEE 150

53' : 12254-3108
SEE 152AB

69' : 12292-2920
RST1670

72' : 12298-2919
RST5367

76' : 12226-3103
LDS 407

81' : 12330-2941
RST1677

83' : 12269-2904
RSS 287

85' : 12213-3033
TOK 789

85' : 12341-3045
SKF1919

87' : 12221-2940
TDS8351

89' : 12311-2906
LDS5754

90' : 12238-3138
LDS5750

92' : 12208-3009
UC 2322

97' : 12267-2850
FOX 174

103' : 12274-2843
B 228

104' : 12318-3155
RST1675

108' : 12306-3206
KPP1813

110' : 12349-3125
B 2296

110' : 12314-3205
PRO 101

110' : 12211-2916
B 226

114' : 12190-3042
KPP 268

115' : 12205-2920
UC 2320



Selections
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Binocular doubles
Binary Systems
Triple Systems
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Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

12278-3025 BRT 2994

 
 
12h 27m 44.21s -30° 25' 20.3" P.A. 126.00 sep 5.2 mag 10.14,10.20
 
 
Coord 2000 12278-3025 Discov num BRT2994 Comp Coord arcsec 2000 12 27 44.21 -30 25 20.3
Date first 1913 Date last 2016 Obs 7
Pa first 126 Pa last 126.2 P.A. Now (θ) 126.2°
Sep first 4.6 Sep last 5.196 Sep. Now (ρ) 5.196"
Mag pri 10.14 Mag sec 10.20 delta mag (ΔM) 0.06 Spectral class
Pri motion ra -007 Sec motion ra
Pri motion dec +036 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Hydra Tycho2 7234-00518-1 Gaia DR2 3471274761416521088
 
 
WDS 12278-3025 BRT 2994 : 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
12278-3025 BRT2994 1999 2 127 5.1 10.48   D 122744.21-302520.3
12278-3025 BRT2994 2010 4 125 4.3 10.14 10.20 122744.21-302520.3
12278-3025 BRT2994 2015 5 126 5.2 10.14 10.20 122744.21-302520.3
12278-3025 BRT2994 2016 7 126 5.2 10.14 10.20 122744.21-302520.3

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

 
 
WDS 12278-3025 BRT 2994 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 12278-3025 BRT 2994 : MEASURES
 
 
No records found.

 
 
WDS 12278-3025 : VIRTUAL EYEPIECE
 
 

12278-3025 BRT2994A mag 10.14 12278-3025 BRT2994B sep 4.7 P.A. 130.30 mag 10.2 virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 12278-3025 : ALADIN DSS IMAGE @ 12h 27m 44.21s -30° 25' 20.3"
 
 
 
 
WDS 12278-3025 BRT 2994 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

12278-3025 BRT2994 distance=0' 12275-3029 LDS5753 distance=7' 12278-3044 TDS8393 distance=19' 12267-3005 LDS5752 distance=25' 12309-3041 I 514 distance=44' 12238-3020 SEE 150 distance=52' 12254-3108 I 1554CD distance=52' 12254-3108 SEE 152AB distance=53' 12254-3108 DAM2481AB,CD distance=53' 12292-2920 RST1670 distance=69' 12298-2919 RST5367 distance=72' 12226-3103 LDS 407 distance=76' 12330-2941 RST1677 distance=81' 12269-2904 RSS 287 distance=83' 12213-3033 TOK 789 distance=85' 12341-3045 SKF1919 distance=85' 12221-2940 TDS8351 distance=87' 12311-2906 LDS5754 distance=89' 12238-3138 LDS5750 distance=90' 12208-3009 UC 2322 distance=92' 12267-2850 FOX 174 distance=97' 12274-2843 B 228 distance=103' 12318-3155 RST1675 distance=104' 12306-3206 KPP1813 distance=108' 12349-3125 B 2296 distance=110' 12314-3205 PRO 101 distance=110' 12211-2916 B 226 distance=110' 12190-3042 KPP 268 distance=114' 12205-2920 UC 2320 distance=115' 12187-3014 TDS8316 distance=119' 12203-2909 RST1661 distance=123' 12257-2825 STN 23AB distance=124' 12257-2825 SKF1918AC distance=124' 12248-2827 BRT2993 distance=125' 12368-2940 LDS4234 distance=126' 12375-3034 DAW 103 distance=128' 12242-3224 DAW 61BC distance=128' 12242-3224 HJ 4519AB distance=128' 12258-2818 KPP2504 distance=130' 12342-3206 HJ 4528AB distance=131' 12199-2852 TDS8333 distance=139' 12266-3244 RST2799 distance=140' 12239-2812 SKF1120 distance=143' 12387-3054 UC 2375 distance=145' 12323-3238 DAM1445 distance=146' 12321-3239 LDS5755 distance=146' 12169-2942 LDS 400 distance=148' 12205-2829 TDS8339 distance=150' 12393-3047 HJ 4537 distance=152' 12246-3252 JSP 532 distance=153' 12397-3022 TDS8477 distance=155' grafico limitrofi
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 12278-3025 BRT2994 126 5.2
Show 12275-3029 LDS5753 292 312.8 7
Show 12278-3044 TDS8393 342 5.5 19
Show 12267-3005 LDS5752 359 150.7 25
Show 12309-3041 I 514 125 0.0 44
Show 12238-3020 SEE 150 99 19.0 52
Show 12254-3108 I 1554 CD 72 1.2 52
Show 12254-3108 SEE 152 AB 85 2.5 53
Show 12254-3108 DAM2481 AB,CD 341 49.9 53
Show 12292-2920 RST1670 296 0.5 69
Show 12298-2919 RST5367 295 0.8 72
Show 12226-3103 LDS 407 40 9.8 76
Show 12330-2941 RST1677 84 3.4 81
Show 12269-2904 RSS 287 42 7.6 83
Show 12213-3033 TOK 789 185 0.5 85
Show 12341-3045 SKF1919 104 10.4 85
Show 12221-2940 TDS8351 66 0.5 87
Show 12311-2906 LDS5754 119 114.2 89
Show 12238-3138 LDS5750 146 140.0 90
Show 12208-3009 UC 2322 205 17.4 92
Show 12267-2850 FOX 174 311 13.9 97
Show 12274-2843 B 228 130 0.3 103
Show 12318-3155 RST1675 305 0.8 104
Show 12306-3206 KPP1813 19 14.1 108
Show 12349-3125 B 2296 72 11.9 110
Show 12314-3205 PRO 101 304 6.1 110
Show 12211-2916 B 226 223 6.2 110
Show 12190-3042 KPP 268 322 3.4 114
Show 12205-2920 UC 2320 79 18.6 115
Show 12187-3014 TDS8316 85 0.4 119
Show 12203-2909 RST1661 49 0.7 123
Show 12257-2825 STN 23 AB 298 34.4 124
Show 12257-2825 SKF1918 AC 278 8.9 124
Show 12248-2827 BRT2993 46 4.1 125
Show 12368-2940 LDS4234 235 18.4 126
Show 12375-3034 DAW 103 256 0.5 128
Show 12242-3224 DAW 61 BC 138 1.0 128
Show 12242-3224 HJ 4519 AB 89 8.9 128
Show 12258-2818 KPP2504 220 22.5 130
Show 12342-3206 HJ 4528 AB 140 30.2 131
Show 12199-2852 TDS8333 111 0.6 139
Show 12266-3244 RST2799 302 0.8 140
Show 12239-2812 SKF1120 271 16.3 143
Show 12387-3054 UC 2375 267 44.1 145
Show 12323-3238 DAM1445 158 1.9 146
Show 12321-3239 LDS5755 145 206.8 146
Show 12169-2942 LDS 400 199 6.7 148
Show 12205-2829 TDS8339 93 0.6 150
Show 12393-3047 HJ 4537 352 11.0 152
Show 12246-3252 JSP 532 158 2.7 153
Show 12397-3022 TDS8477 17 3.5 155

 
 
WDS 12278-3025 : COMPONENTS
 
 
  A
B pa=130.3°
sep=4.74"
 
 
12278-3025 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 122744.21-302520.3 Mag 10.14 PmRA -7.00
PmDE 36.0
 
 
12278-3025 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 122744.49-302523.4 Mag 10.2 Tycho2 7234-00518-1
Calc delta mag 0.06 Calc coord yes
Tycho2
Tycho2 7234-00518-1 Pflag RAmdeg 186.93422510 DEmdeg -30.42231299
PmRA 11.8 PmDE 19.3 E RAmdeg 29 E DEmdeg 31
E pmRA 1.8 E pmDE 1.8 EpRAm 1979.09 EpDEm 1976.45
Num 6 Q RAmdeg 2.0 Q DEmdeg 0.9 Q pmRA 2.0
Q pmDE 0.9 BTmag 11.120 E BTmag 0.073 VTmag 10.480
E VTmag 0.064 Prox 999 TYC T HIP
CCDM RAdeg 186.93418972 DEdeg -30.42235611 EpRA 1990 1.71
EpDE 1990 1.70 E RAdeg 41.4 E DEdeg 48.0 Posflg
Corr 0.0