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Current system
07018-1118
HU 112 AB
GU CMa


Nearby doubles
16' : 07008-1116
RST3481

20' : 07017-1100
GAL 287

21' : 07030-1107
HDS 981

26' : 07018-1053
BU 573

32' : 07032-1054
TDS4421

32' : 07037-1133
BRH 1

33' : 07040-1124
SKF2848

34' : 07040-1125
GAL 294

34' : 07041-1119
HJ 749AB

37' : 07043-1124
RST3487

40' : 07017-1039
GAL 289AB

43' : 06590-1124
TDS4349

43' : 07014-1036
J 1484AB

44' : 07046-1131
STF1016

49' : 06590-1144
LDS 849

49' : 07029-1033
OSB 4

49' : 07051-1116
KPP2584

50' : 07001-1200
HU 111

51' : 06585-1126
STF1004

51' : 06591-1047
RST3479

52' : 07052-1104
CON 28

54' : 07036-1032
RST3485

60' : 07043-1031
BEU 9

61' : 07017-1219
GAL 288

61' : 06589-1035
TOI1002

64' : 06584-1038
GAL 418



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.

07018-1118 HU 112 AB (GU CMa)

 
 
07h 01m 49.51s -11° 18' 03.3" P.A. 196.00 sep 0.6 mag 7.03,7.70 Sp B2V+B9V dist. 444.44 pc (1449.76 l.y.)
 
 
Coord 2000 07018-1118 Discov num HU  112 Comp AB Coord arcsec 2000 07 01 49.51 -11 18 03.3
Date first 1900 Date last 2021 Obs 28
Pa first 191 Pa last 196 P.A. Now (θ) 196°
Sep first 0.6 Sep last 0.641 Sep. Now (ρ) 0.641"
Mag pri 7.03 Mag sec 7.70 delta mag (ΔM) 0.67 Spectral class B2V+B9V (blue-white/blue-white)
Pri motion ra -003 Sec motion ra -003
Pri motion dec +003 Sec motion dec +003
Notes N (See Notes)
Nature of this double is uncertain.
 
 
07018-1118 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show GU CMa 152255 07 01 50 -11 18 03 HU 112 AB 2021 28 196 0.6 7.03 7.70 0.67 <===
Show 152255 07 01 50 -11 18 03 SAO 3 AC 2020 8 198 0.7 7.03 7.80 0.77
Show 07 01 50 -11 18 04 HU 112 Ba,Bb 2021 1 232 0.0 8.40 8.50 0.10
Quadruple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name GU CMa Constellation Canis Major SAO 152255 HIP 33868
Tycho2 5389-03065-1 HD 52721 GC 9267 BD BD-11 1747
Distance 444.44 Distance ly 1449.76
 
 
WDS 07018-1118 HU 112 AB (GU CMa) : NOTES
 
 
discov_num notes refcode
HU 112 Includes GU CMa, a Beta Lyr type eclipsing binary, P = 1.61014d. Zas2012
 
 
REFERENCES
 
 
refcode metd author reference
Zas2012 - Zasche, P. ...................
Zas2012 private communication, 2012
 
 
DISCOVERER
 
 
idgroup discov author
1 HU Hussey, W.F.
58 SAO Dyachenko, V., Richichi, A., Balega, Yu., Beskakotov, A., Maksimov, A. & Rastegaev,
58 SAO D.
59 SAO Dyachenko, V., Richichi, A., Obolentseva, M., Beskakotov, A., Maksimov, A.,
59 SAO Mitrofanova, A. & Balega, Yu.
60 SAO Obolentseva, M.A., Dyachenko, V.V., Pogodin, M.A., Khovritchev, M.Yu., Pavlovskiy,
60 SAO S.E., Balega, Yu.Yu., Beskakotov, A.S., Mitrofanova, A.A. & Maksimov, A.F.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
07018-1118 HU 112 AB 2020 27 197 0.6 7.03 7.70 B2V+B9V N 070149.51-111803.3
07018-1118 HU 112 AB 2021 28 196 0.6 7.03 7.70 B2V+B9V N 070149.51-111803.3

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

 
 
WDS 07018-1118 HU 112 AB (GU CMa) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 07018-1118 HU 112 AB (GU CMa) : MEASURES
 
 
No records found.

 
 
WDS 07018-1118 (GU CMa) : VIRTUAL EYEPIECE
 
 

07018-1118 HU 112A mag 7.03 Sp B2V 07018-1118 HU 112B sep 0.6 P.A. 193.80 mag 8.4 Sp B9V 07018-1118 HU 112Bb sep 0.7 P.A. 195.70 mag 8.5 07018-1118 SAO 3C sep 0.7 P.A. 197.70 mag 7.8 Sp B9V virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 07018-1118 (GU CMa) : ALADIN DSS IMAGE @ 07h 01m 49.51s -11° 18' 03.3"
 
 
 
 
WDS 07018-1118 HU 112 AB (GU CMa) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

07018-1118 HU 112AB distance=1' 07018-1118 SAO 3AC distance=1' 07018-1118 HU 112Ba,Bb distance=1' 07008-1116 RST3481 distance=16' 07017-1100 GAL 287 distance=20' 07030-1107 HDS 981 distance=21' 07018-1053 BU 573 distance=26' 07032-1054 TDS4421 distance=32' 07037-1133 BRH 1 distance=32' 07040-1124 SKF2848 distance=33' 07040-1125 GAL 294 distance=34' 07041-1119 HJ 749AB distance=34' 07041-1119 HJ 749AC distance=34' 07041-1119 HJ 749AD distance=34' 07041-1119 HJ 749AE distance=34' 07043-1124 RST3487 distance=37' 07017-1039 GAL 289AB distance=40' 07017-1039 RST3482Aa,Ab distance=40' 07017-1039 GAL 289BC distance=40' 06590-1124 TDS4349 distance=43' 07014-1036 J 1484AB distance=43' 07014-1036 DAM1197AC distance=43' 07014-1036 DAM1197AD distance=43' 07046-1131 STF1016 distance=44' 06590-1144 LDS 849 distance=49' 07029-1033 OSB 4 distance=49' 07051-1116 KPP2584 distance=49' 07001-1200 HU 111 distance=50' 06585-1126 STF1004 distance=51' 06591-1047 RST3479 distance=51' 07052-1104 CON 28 distance=52' 07036-1032 RST3485 distance=54' 07043-1031 BEU 9 distance=60' 07017-1219 GAL 288 distance=61' 06589-1035 TOI1002 distance=61' 06584-1038 GAL 418 distance=64' 07044-1027 RST3489AB distance=64' 07044-1027 ZRR 1Aa,Ab distance=64' 07048-1209 CON 27Aa,Ab distance=68' 07048-1209 CON 27AB distance=68' 07048-1209 CON 27CD distance=68' 07048-1209 CON 27CE distance=68' 06599-1016 HDS 974 distance=68' 07059-1041 OL 208 distance=69' 07058-1040 RST3491CD distance=71' 07058-1040 D 12AB distance=71' 07058-1040 STF1019AC distance=71' 07039-1223 BRT2658 distance=72' 07067-1118 BU 328AB distance=72' 07067-1118 STF1026AB,C distance=72' 07059-1158 TDS4463 distance=72' 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 07018-1118 HU 112 AB 196 0.6 1
Show 07018-1118 SAO 3 AC 198 0.7 1
Show 07018-1118 HU 112 Ba,Bb 232 0.0 1
Show 07008-1116 RST3481 263 0.6 16
Show 07017-1100 GAL 287 11 6.6 20
Show 07030-1107 HDS 981 270 0.2 21
Show 07018-1053 BU 573 311 0.8 26
Show 07032-1054 TDS4421 240 1.9 32
Show 07037-1133 BRH 1 304 0.1 32
Show 07040-1124 SKF2848 18 3.1 33
Show 07040-1125 GAL 294 200 3.9 34
Show 07041-1119 HJ 749 AB 121 13.3 34
Show 07041-1119 HJ 749 AC 93 84.4 34
Show 07041-1119 HJ 749 AD 86 137.3 34
Show 07041-1119 HJ 749 AE 72 156.4 34
Show 07043-1124 RST3487 19 1.2 37
Show 07017-1039 GAL 289 AB 320 20.8 40
Show 07017-1039 RST3482 Aa,Ab 277 1.4 40
Show 07017-1039 GAL 289 BC 60 8.0 40
Show 06590-1124 TDS4349 114 2.2 43
Show 07014-1036 J 1484 AB 60 4.0 43
Show 07014-1036 DAM1197 AC 38 9.0 43
Show 07014-1036 DAM1197 AD 89 10.7 43
Show 07046-1131 STF1016 150 5.4 44
Show 06590-1144 LDS 849 52 12.9 49
Show 07029-1033 OSB 4 320 3.2 49
Show 07051-1116 KPP2584 11 23.4 49
Show 07001-1200 HU 111 17 2.9 50
Show 06585-1126 STF1004 89 20.5 51
Show 06591-1047 RST3479 113 0.5 51
Show 07052-1104 CON 28 48 2.4 52
Show 07036-1032 RST3485 62 0.2 54
Show 07043-1031 BEU 9 272 0.1 60
Show 07017-1219 GAL 288 314 8.7 61
Show 06589-1035 TOI1002 129 0.1 61
Show 06584-1038 GAL 418 179 15.4 64
Show 07044-1027 RST3489 AB 299 0.6 64
Show 07044-1027 ZRR 1 Aa,Ab 162 0.0 64
Show 07048-1209 CON 27 Aa,Ab 330 0.3 68
Show 07048-1209 CON 27 AB 143 2.4 68
Show 07048-1209 CON 27 CD 356 0.6 68
Show 07048-1209 CON 27 CE 357 1.5 68
Show 06599-1016 HDS 974 131 15.4 68
Show 07059-1041 OL 208 79 5.4 69
Show 07058-1040 RST3491 CD 302 0.9 71
Show 07058-1040 D 12 AB 282 6.4 71
Show 07058-1040 STF1019 AC 292 38.2 71
Show 07039-1223 BRT2658 239 3.3 72
Show 07067-1118 BU 328 AB 115 0.6 72
Show 07067-1118 STF1026 AB,C 350 17.8 72
Show 07059-1158 TDS4463 154 1.0 72

 
 
WDS 07018-1118 : COMPONENTS
 
 
  A B Bb
B pa=193.8°
sep=0.62"
 
Bb pa=195.7°
sep=0.65"
pa=231.9°
sep=0.04"
 
C pa=197.7°
sep=0.65"
pa=245.2°
sep=0.06"
pa=265.4°
sep=0.02"
 
 
07018-1118 A
 
 
Var name GU CMa Coord arcsec 2000 070149.51-111803.3 Mag 7.03 Spectral class B2V (blue-white)
PmRA -3.00 PmDE 3.0 SAO 152255 HIP 33868
Tycho2 5389-03065-1 HD 52721 GC 9267 BD BD-11 1747
Tycho2
Tycho2 5389-03065-1 Pflag RAmdeg 105.45627885 DEmdeg -11.30096949
PmRA -3.2 PmDE 3.3 E RAmdeg 4 E DEmdeg 4
E pmRA 1.2 E pmDE 1.2 EpRAm 1991.48 EpDEm 1991.46
Num 12 Q RAmdeg 1.2 Q DEmdeg 0.8 Q pmRA 1.3
Q pmDE 0.8 BTmag 6.689 E BTmag 0.015 VTmag 6.651
E VTmag 0.010 Prox 999 TYC T HIP 33868
CCDM AB RAdeg 105.45628611 DEdeg -11.30097694 EpRA 1990 1.79
EpDE 1990 1.75 E RAdeg 4.0 E DEdeg 4.4 Posflg P
Corr 0.0
SAO
SAO 152255 DelFlag RA1950 PmRA1950 -0.0019
DE1950 PmDE1950 0.01 Vmag 6.6 SpType B3
Double code Source 70 CatNum 9267 DM BD-11 1747
DMcomp BDsup HD 52721 M HD 0
GC 9267 RA1950rad 1.83030946 DE1950rad -0.19596875 PmRA2000 -0.0015
PmDE2000 0.013
Hipparcos
Catalog H HIP 33868 Proxy H RAhms 07 01 49.51
DEdms -11 18 03.4 Vmag 6.54 VarFlag 2 R Vmag H
RAdeg 105.456 DEdeg -11.3009 AstroRef A Plx 1.1
CCDM 07018-1118 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 195 Rho 0.654 HD 52721 BD BD-11 1747
CD CP Dm number -11 1747 VIred 0.03
SpType B2Vne R SpType Coord arcsec 2000 070149.51-111803.4
Hipparcos 2
HIP 33868 Sn 15 So 3 Nc 2
RArad 1.8405597096 DErad -0.1972385051 Plx 2.25 PmRA -5.08
PmDE 4.59 E RArad 1.65 E DErad 1.54 E Plx 2.04
E pmRA 2.23 E pmDE 1.93 Hpmag 6.5506 E Hpmag 0.0064
SHp 0.066 VA 1 BV 0.016 E BV 0.015
VI 0.04
CCDM
Ccdm 07018-1118 RComp Comp A Note1
Note2 Discov num DRAs 1.38 DDEs -2.7
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.1 Sp B3 PmNote *
PmRA -25 PmDE 11 Dm number -11 1747 Cat1 BD
Name2 152255 Cat2 SAO HD 52721 M HD
ADS BDS A 5713 M ADS BDS N IDS IDS 06571S1110A
HIC 33868
 
 
07018-1118 B
 
 
Coord arcsec 2000 070149.50-111803.9 Mag 8.4 Mag composta 7.7 Spectral class B9V (blue-white)
PmRA -3.00 PmDE 3.0 Calc delta mag 1.37 Calc coord yes
 
 
07018-1118 Bb
 
 
Coord arcsec 2000 070149.50-111803.9 Mag 8.5 Calc delta mag 1.47 Calc coord yes
 
 
07018-1118 C
 
 
Coord arcsec 2000 070149.50-111803.9 Mag 7.8 Spectral class B9V (blue-white) Calc delta mag 0.77
Calc coord yes