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Current system
12312-5707
DUN 124 AC


Nearby doubles
9' : 12314-5659
RST2802

27' : 12341-5657
BRT2808

30' : 12307-5736
RST2801

30' : 12309-5736
LDS 411

35' : 12340-5732
RST4963

37' : 12291-5739
TSN 26

39' : 12354-5724
TDS8449

39' : 12342-5736
TDS8439

39' : 12321-5629
TDS8425

40' : 12355-5651
RST2805

42' : 12263-5718
TDS8383

44' : 12362-5652
HDS1768

44' : 12273-5737
HJ 4523

44' : 12311-5623
TOB 85

44' : 12297-5752
HJ 4525

48' : 12286-5624
HDO 217AB

54' : 12247-5713
TDS8368

54' : 12346-5752
R 202

56' : 12342-5757
TDS8440

58' : 12363-5747
TOB 99

59' : 12341-5801
TDS8437

60' : 12318-5607
I 219

61' : 12369-5629
JSP 543

63' : 12274-5801
TOB 74

64' : 12237-5725
TOB 68

64' : 12364-5755
TDS8455



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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

12312-5707 DUN 124 AC

 
 
12h 31m 09.95s -57° 06' 47.5" P.A. 68.00 sep 168.1 mag 1.83,9.74 Sp M3.5III dist. 27.15 pc (88.56 l.y.)
 
 
Coord 2000 12312-5707 Discov num DUN 124 Comp AC Coord arcsec 2000 12 31 09.95 -57 06 47.5
Date first 1879 Date last 2018 Obs 8
Pa first 86 Pa last 68.3 P.A. Now (θ) 68.3°
Sep first 155.2 Sep last 168.1 Sep. Now (ρ) 168.1"
Mag pri 1.83 Mag sec 9.74 delta mag (ΔM) 7.91 Spectral class M3.5III (red)
Pri motion ra +028 Sec motion ra +087
Pri motion dec -264 Sec motion dec +007
Notes N U (See Notes, Proper motion indicates non-physical)
rPM=1.045
This double is not physical.
 
 
12312-5707 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Gacrux 240019 12 31 10 -57 06 48 DUN 124 AB 2018 21 24 133.2 1.83 6.45 4.62
Show 240019 12 31 10 -57 06 48 DUN 124 AC 2018 8 68 168.1 1.83 9.74 7.91 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Common name Gacrux Var name NSV5672 Cru Constellation Crux SAO 240019
HIP 61084 Tycho2 8654-03422-1 HD 108903 HR 4763
GC 17052 CD CD-56 4504 CP CP-56 5272 Bayer Gamma Crucis
Bayer name Gam Cru FK5 468 Distance 27.15 Distance ly 88.56
Bayer greek γ Cru
Meaning range of the cross
 
 
WDS 12312-5707 DUN 124 AC : NOTES
 
 
discov_num notes refcode
DUN 124 gam Cru = Gacrux. A variable? B is CPD-56@5274, spectrum A3V.
AB: Optical pair, based on study of relative motion of the components
using the method of apparent motion parameters. Kiy2008
 
 
REFERENCES
 
 
refcode metd author reference
Kiy2008 - Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S. 2008SvAL...32..405K
Kiy2008 SvAL 34, 405, 2008
 
 
DISCOVERER
 
 
idgroup discov author
1 DUN Dunlop, J.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12312-5707 DUN 124 AC 2002 4 71 167.0 1.83 9.70 M3.5III N D 123109.95-570647.5
12312-5707 DUN 124 AC 2010 6 70 165.7 1.83 9.74 M3.5III N 123109.95-570647.5
12312-5707 DUN 124 AC 2018 8 68 168.1 1.83 9.74 M3.5III N 123109.95-570647.5

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

 
 
WDS 12312-5707 DUN 124 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 12312-5707 DUN 124 AC : MEASURES
 
 
No records found.

 
 
WDS 12312-5707 : VIRTUAL EYEPIECE
 
 

12312-5707 DUN 124A mag 1.83 Sp M3.5III 12312-5707 DUN 124B sep 125.0 P.A. 13.80 mag 6.45 12312-5707 DUN 124C sep 105.2 P.A. 53.80 mag 9.74 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 12312-5707 : ALADIN DSS IMAGE @ 12h 31m 09.95s -57° 06' 47.5"
 
 
 
 
WDS 12312-5707 DUN 124 AC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

12312-5707 DUN 124AC (Gacrux) distance=0' 12314-5659 RST2802 distance=9' 12341-5657 BRT2808 distance=27' 12307-5736 RST2801 distance=30' 12309-5736 LDS 411 distance=30' 12340-5732 RST4963 distance=35' 12291-5739 TSN 26 distance=37' 12354-5724 TDS8449 distance=39' 12342-5736 TDS8439 distance=39' 12321-5629 TDS8425 distance=39' 12355-5651 RST2805 distance=40' 12263-5718 TDS8383 distance=42' 12362-5652 HDS1768 distance=44' 12273-5737 HJ 4523 distance=44' 12311-5623 TOB 85 distance=44' 12297-5752 HJ 4525 distance=44' 12286-5624 HDO 217AB distance=48' 12286-5624 HDO 217AC distance=48' 12247-5713 TDS8368 distance=54' 12346-5752 R 202 distance=54' 12342-5757 TDS8440 distance=56' 12363-5747 TOB 99 distance=58' 12341-5801 TDS8437 distance=59' 12318-5607 I 219 distance=60' 12369-5629 JSP 543 distance=61' 12274-5801 TOB 74 distance=63' 12237-5725 TOB 68 distance=64' 12364-5755 TDS8455 distance=64' 12234-5647 RST2794 distance=67' 12260-5800 RST1666 distance=69' 12393-5734 LDS 416 distance=71' 12303-5555 JSP 537 distance=72' 12287-5557 TOB 77 distance=73' 12242-5620 JSP 530 distance=74' 12349-5814 JSP 540 distance=74' 12269-5816 RST1667 distance=78' 12345-5820 TOB 91 distance=78' 12376-5805 JSP 544 distance=78' 12236-5756 RST1665 distance=79' 12249-5807 BSO 8 distance=80' 12274-5554 JSP 534 distance=80' 12368-5600 KPP1151 distance=82' 12383-5807 HJ 4534 distance=83' 12286-5829 TOB 75 distance=85' 12206-5706 TDS8342 distance=86' 12273-5544 JSP 533AB distance=89' 12273-5544 SIN 72AC distance=89' 12285-5538 JSP 916 distance=92' 12381-5556 HLD 116AB distance=92' 12381-5556 KOU 12AC distance=92' 12380-5822 TOB 103 distance=94' 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 Gacrux 12312-5707 DUN 124 AB 24 133.2
Show Gacrux 12312-5707 DUN 124 AC 68 168.1
Show 12314-5659 RST2802 50 1.2 9
Show 12341-5657 BRT2808 171 4.7 27
Show 12307-5736 RST2801 126 2.2 30
Show 12309-5736 LDS 411 257 293.1 30
Show 12340-5732 RST4963 259 0.0 35
Show 12291-5739 TSN 26 215 10.8 37
Show 12354-5724 TDS8449 172 2.8 39
Show 12342-5736 TDS8439 212 0.7 39
Show 12321-5629 TDS8425 73 0.6 39
Show 12355-5651 RST2805 80 0.8 40
Show 12263-5718 TDS8383 130 0.7 42
Show 12362-5652 HDS1768 2 8.1 44
Show 12273-5737 HJ 4523 275 6.4 44
Show 12311-5623 TOB 85 25 24.0 44
Show 12297-5752 HJ 4525 93 9.4 44
Show 12286-5624 HDO 217 AB 348 24.2 48
Show 12286-5624 HDO 217 AC 336 47.5 48
Show 12247-5713 TDS8368 178 0.5 54
Show 12346-5752 R 202 52 21.1 54
Show 12342-5757 TDS8440 238 3.0 56
Show 12363-5747 TOB 99 102 14.9 58
Show 12341-5801 TDS8437 321 0.6 59
Show 12318-5607 I 219 50 1.8 60
Show 12369-5629 JSP 543 93 2.0 61
Show 12274-5801 TOB 74 123 21.8 63
Show 12237-5725 TOB 68 147 14.7 64
Show 12364-5755 TDS8455 240 2.1 64
Show 12234-5647 RST2794 94 2.6 67
Show 12260-5800 RST1666 183 1.1 69
Show 12393-5734 LDS 416 3 39.0 71
Show 12303-5555 JSP 537 242 1.0 72
Show 12287-5557 TOB 77 343 24.4 73
Show 12242-5620 JSP 530 289 2.0 74
Show 12349-5814 JSP 540 11 6.6 74
Show 12269-5816 RST1667 154 1.0 78
Show 12345-5820 TOB 91 69 23.8 78
Show 12376-5805 JSP 544 24 3.9 78
Show 12236-5756 RST1665 34 2.4 79
Show 12249-5807 BSO 8 334 4.7 80
Show 12274-5554 JSP 534 339 2.5 80
Show 12368-5600 KPP1151 185 9.0 82
Show 12383-5807 HJ 4534 281 15.8 83
Show 12286-5829 TOB 75 289 16.1 85
Show 12206-5706 TDS8342 6 0.7 86
Show 12273-5544 JSP 533 AB 303 8.1 89
Show 12273-5544 SIN 72 AC 275 77.1 89
Show 12285-5538 JSP 916 156 5.8 92
Show 12381-5556 HLD 116 AB 181 1.9 92
Show 12381-5556 KOU 12 AC 221 4.2 92

 
 
WDS 12312-5707 : COMPONENTS
 
 
  A B
B pa=13.8°
sep=125.00"
 
C pa=53.8°
sep=105.16"
pa=137.1°
sep=80.89"
 
 
12312-5707 A
 
 
Common name Gacrux Meaning range of the cross Coord arcsec 2000 123109.95-570647.5 Mag 1.83
Spectral class M3.5III (red) PmRA 28.00 PmDE -264.0 SAO 240019
HIP 61084 Tycho2 8654-03422-1 HD 108903 HR 4763
GC 17052 CD CD-56 4504 CP CP-56 5272 Bayer Gamma Crucis
Bayer name Gam Cru FK5 468
SAO
SAO 240019 DelFlag RA1950 PmRA1950 0.0035
DE1950 PmDE1950 -0.267 Vmag 1.6 SpType M3
Double code Source 74 CatNum 468 DM CP-56 5272
DMcomp BDsup HD 108903 M HD 0
GC 17052 RA1950rad 3.26541844 DE1950rad -0.9919304 PmRA2000 0.0032
PmDE2000 -0.263
Hipparcos
Catalog H HIP 61084 Proxy RAhms 12 31 09.93
DEdms -57 06 45.2 Vmag 1.59 VarFlag 2 R Vmag H
RAdeg 187.791 DEdeg -57.1126 AstroRef Plx 37.09
CCDM 12312-5706 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual S M HIP
Theta Rho HD 108903 BD
CD CD-56 4504 CP CP-56 5272 Dm number -56 4504 VIred 2.37
SpType M4III R SpType Coord arcsec 2000 123109.93-570645.2
Hipparcos 2
HIP 61084 Sn 5 So 0 Nc 1
RArad 3.2775777484 DErad -0.9968023763 Plx 36.83 PmRA 28.23
PmDE -265.08 E RArad 0.09 E DErad 0.11 E Plx 0.18
E pmRA 0.14 E pmDE 0.12 Hpmag 1.6299 E Hpmag 0.0027
SHp 0.029 VA 2 BV 1.6 E BV 0.008
VI 2.37
 
 
12312-5707 B
 
 
Coord arcsec 2000 123113.60-570446.1 Mag 6.45 PmRA 5.00 PmDE -14.0
Calc delta mag 4.62 Calc coord yes
 
 
12312-5707 C
 
 
Coord arcsec 2000 123120.36-570545.3 Mag 9.74 PmRA 87.00 PmDE 7.0
Calc delta mag 7.91 Calc coord yes