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Current system
21166-2746
BRT 3100


Nearby doubles
19' : 21161-2802
LDS5920

25' : 21157-2803
BRT3099

36' : 21178-2714
STN 54

45' : 21136-2725
LDS5919

51' : 21169-2836
DAW 154

54' : 21200-2718
BU 252

56' : 21162-2651
RST2175

59' : 21194-2831
B 523

60' : 21154-2842
LDS4874

60' : 21121-2735
HJ 3012

61' : 21212-2744
HDS3040

63' : 21210-2725
UC 4451

66' : 21140-2650
RST2174

70' : 21146-2849
LDS4872

73' : 21181-2636
KPP 713

75' : 21188-2637
SEE 443

80' : 21131-2850
BRT3096

80' : 21125-2649
UC 4402

88' : 21105-2711
BRG 32

88' : 21231-2806
HDS3047

94' : 21229-2705
I 1441

95' : 21140-2914
RST2173

95' : 21198-2621
BU 271AB

99' : 21149-2921
HDS3022

103' : 21111-2858
HU 85

103' : 21113-2632
TDT2811



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

21166-2746 BRT 3100

 
 
21h 16m 35.25s -27° 45' 53.0" P.A. 168.00 sep 7.1 mag 10.63,12.01 Sp K7V dist. 507.61 pc (1655.82 l.y.)
 
 
Coord 2000 21166-2746 Discov num BRT3100 Comp Coord arcsec 2000 21 16 35.25 -27 45 53.0
Date first 1913 Date last 2019 Obs 6
Pa first 219 Pa last 168.2 P.A. Now (θ) 168.2°
Sep first 2.7 Sep last 7.061 Sep. Now (ρ) 7.061"
Mag pri 10.63 Mag sec 12.01 delta mag (ΔM) 1.38 Spectral class K7V (yellow-orange)
Pri motion ra -029 Sec motion ra -004
Pri motion dec +068 Sec motion dec -117
Notes S (Parallax indidates non-physical)
rPM=1.595
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Microscopium HIP 105041 Tycho2 6945-00286-1 Gaia DR2 6790413977254344448
CD CD-2817203 Distance 507.61 Distance ly 1655.82
 
 
WDS 21166-2746 BRT 3100 : 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
21166-2746 BRT3100 1991 2 175 5.7 10.63 12.01 211635.25-274553.0
21166-2746 BRT3100 1999 3 172 6.0 10.63 12.01 211635.25-274553.0
21166-2746 BRT3100 2019 5 168 7.1 10.63 12.01 K7V 211635.25-274553.0

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

 
 
WDS 21166-2746 BRT 3100 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21166-2746 BRT 3100 : MEASURES
 
 
No records found.

 
 
WDS 21166-2746 : VIRTUAL EYEPIECE
 
 

21166-2746 BRT3100A mag 10.63 Sp K7V 21166-2746 BRT3100B sep 7.0 P.A. 169.50 mag 12.01 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 21166-2746 : ALADIN DSS IMAGE @ 21h 16m 35.25s -27° 45' 53.0"
 
 
 
 
WDS 21166-2746 BRT 3100 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21166-2746 BRT3100 distance=0' 21161-2802 LDS5920 distance=19' 21157-2803 BRT3099 distance=25' 21178-2714 STN 54 distance=36' 21136-2725 LDS5919 distance=45' 21169-2836 DAW 154 distance=51' 21200-2718 BU 252 distance=54' 21162-2651 RST2175 distance=56' 21194-2831 B 523 distance=59' 21154-2842 LDS4874 distance=60' 21121-2735 HJ 3012 distance=60' 21212-2744 HDS3040 distance=61' 21210-2725 UC 4451 distance=63' 21140-2650 RST2174 distance=66' 21146-2849 LDS4872 distance=70' 21181-2636 KPP 713 distance=73' 21188-2637 SEE 443 distance=75' 21131-2850 BRT3096 distance=80' 21125-2649 UC 4402 distance=80' 21105-2711 BRG 32 distance=88' 21231-2806 HDS3047 distance=88' 21229-2705 I 1441 distance=94' 21140-2914 RST2173 distance=95' 21198-2621 BU 271AB distance=95' 21198-2621 BU 271AC distance=95' 21198-2621 BU 271AD distance=95' 21198-2621 BU 271AE distance=95' 21149-2921 HDS3022 distance=99' 21111-2858 HU 85 distance=103' 21113-2632 TDT2811 distance=103' 21173-2601 UC 4428 distance=106' 21181-2931 LDS 738AB distance=107' 21181-2931 LDS 738Aa,Ab distance=107' 21212-2914 FIN 6 distance=107' 21205-2920 LDS5921 distance=108' 21090-2829 DAW 153 distance=110' 21179-2555 RST1086 distance=113' 21146-2935 B 2492 distance=113' 21148-2555 HJ 3014 distance=114' 21140-2940 MET 91 distance=119' 21251-2831 LDS5923 distance=123' 21257-2706 TDT2956 distance=128' 21100-2603 SEE 440 distance=136' 21127-2539 KPP1612 distance=138' 21094-2928 B 517 distance=140' 21061-2727 KPP1653 distance=141' 21157-2526 RST3281 distance=141' 21266-2839 TDT2970 distance=143' 21065-2642 TOI 172 distance=149' 21078-2606 HTS 13 distance=154' 21192-3018 RST2176AB distance=156' 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 21166-2746 BRT3100 168 7.1
Show 21161-2802 LDS5920 15 52.4 19
Show 21157-2803 BRT3099 298 4.4 25
Show 21178-2714 STN 54 238 7.1 36
Show 21136-2725 LDS5919 214 219.6 45
Show 21169-2836 DAW 154 88 1.1 51
Show 21200-2718 BU 252 88 2.1 54
Show 21162-2651 RST2175 329 1.9 56
Show 21194-2831 B 523 212 0.8 59
Show 21154-2842 LDS4874 34 22.5 60
Show 21121-2735 HJ 3012 320 25.8 60
Show 21212-2744 HDS3040 65 0.3 61
Show 21210-2725 UC 4451 203 24.7 63
Show 21140-2650 RST2174 11 0.6 66
Show 21146-2849 LDS4872 276 62.7 70
Show 21181-2636 KPP 713 34 6.3 73
Show 21188-2637 SEE 443 295 1.3 75
Show 21131-2850 BRT3096 93 4.3 80
Show 21125-2649 UC 4402 325 36.0 80
Show 21105-2711 BRG 32 314 9.4 88
Show 21231-2806 HDS3047 103 0.1 88
Show 21229-2705 I 1441 159 1.8 94
Show 21140-2914 RST2173 11 1.3 95
Show 21198-2621 BU 271 AB 24 0.6 95
Show 21198-2621 BU 271 AC 67 141.7 95
Show 21198-2621 BU 271 AD 61 298.6 95
Show 21198-2621 BU 271 AE 32 180.4 95
Show 21149-2921 HDS3022 18 0.4 99
Show 21111-2858 HU 85 141 2.9 103
Show 21113-2632 TDT2811 96 0.7 103
Show 21173-2601 UC 4428 18 69.6 106
Show 21181-2931 LDS 738 AB 182 27.4 107
Show 21181-2931 LDS 738 Aa,Ab 101 4.8 107
Show 21212-2914 FIN 6 209 1.2 107
Show 21205-2920 LDS5921 91 313.7 108
Show 21090-2829 DAW 153 279 3.6 110
Show 21179-2555 RST1086 162 0.4 113
Show 21146-2935 B 2492 7.2 113
Show 21148-2555 HJ 3014 301 2.1 114
Show 21140-2940 MET 91 161 1.9 119
Show 21251-2831 LDS5923 208 33.3 123
Show 21257-2706 TDT2956 239 0.5 128
Show 21100-2603 SEE 440 38 9.1 136
Show 21127-2539 KPP1612 181 12.3 138
Show 21094-2928 B 517 129 4.2 140
Show 21061-2727 KPP1653 186 12.7 141
Show 21157-2526 RST3281 112 3.1 141
Show 21266-2839 TDT2970 278 0.6 143
Show 21065-2642 TOI 172 322 1.3 149
Show 21078-2606 HTS 13 144 17.5 154
Show 21192-3018 RST2176 AB 246 0.8 156

 
 
WDS 21166-2746 : COMPONENTS
 
 
  A
B pa=169.5°
sep=7.03"
 
 
21166-2746 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 211635.25-274553.0 Mag 10.63 Spectral class K7V (yellow-orange)
PmRA -29.00 PmDE 68.0 HIP 105041 Tycho2 6945-00286-1
CD CD-2817203
Tycho2
Tycho2 6945-00286-1 Pflag RAmdeg 319.14678663 DEmdeg -27.76460145
PmRA -34.1 PmDE 42.7 E RAmdeg 50 E DEmdeg 66
E pmRA 3.0 E pmDE 2.7 EpRAm 1988.09 EpDEm 1983.44
Num 3 Q RAmdeg 0.5 Q DEmdeg 1.7 Q pmRA 0.5
Q pmDE 1.7 BTmag 12.044 E BTmag 0.133 VTmag 11.093
E VTmag 0.085 Prox 999 TYC T HIP 105041
CCDM RAdeg 319.14687389 DEdeg -27.76469639 EpRA 1990 1.85
EpDE 1990 1.98 E RAdeg 50.7 E DEdeg 70.2 Posflg
Corr -0.1
Hipparcos
Catalog H HIP 105041 Proxy RAhms 21 16 35.25
DEdms -27 45 53.0 Vmag 10.63 VarFlag R Vmag H
RAdeg 319.147 DEdeg -27.7647 AstroRef Plx 9.14
CCDM 21166-2746 N CCDM I Nsys 1 Ncomp 1
MultFlag X Source Qual S M HIP
Theta Rho HD BD
CD CD-2817203 CP Dm number -2817203 VIred 0.73
SpType K7V R SpType Coord arcsec 2000 211635.25-274553.0
Hipparcos 2
HIP 105041 Sn 1 So 2 Nc 1
RArad 5.5701638706 DErad -0.4845858627 Plx 1.97 PmRA -25.22
PmDE 56.19 E RArad 9.35 E DErad 6.9 E Plx 9.72
E pmRA 12.7 E pmDE 5.51 Hpmag 10.7781 E Hpmag 0.0052
SHp 0.045 VA 0 BV 1.039 E BV 0.192
VI 1.01
CCDM
Ccdm 21166-2746 RComp Comp A Note1
Note2 Discov num DRAs -0.74 DDEs 4.7
R dRAs 66 Year Theta Rho
Obs 2 Vmag Sp PmNote
PmRA PmDE Dm number -2817203 Cat1 CD
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 21107S2811A
HIC 105041
 
 
21166-2746 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 211635.35-274559.9 Mag 12.01 PmRA -4.00
PmDE -117.0 Calc delta mag 1.38 Calc coord yes
CCDM
Ccdm 21166-2746 RComp Comp B Note1
Note2 Discov num BRT3100 DRAs DDEs
R dRAs Year 1913 Theta 220 Rho 2.8
Obs 1 Vmag Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 21107S2811B
HIC 105041