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Doubles in session


Current system
12540-1802
S 643
HD 112074


Nearby doubles
31' : 12533-1831
RST2821

34' : 12542-1835
UC 2426

35' : 12529-1732
UC 2421

40' : 12533-1724
GWP1873

46' : 12537-1718
LDS 424

61' : 12505-1835
HU 136

63' : 12503-1837
GWP1864

65' : 12566-1709
HJ 2624

67' : 12584-1740
UC 2441

81' : 12485-1746
FEN 18

81' : 12529-1643
UC 2420

84' : 12578-1907
NSN 103

85' : 12495-1709
RST3810AB

86' : 12515-1920
J 1584

100' : 12545-1942
UC 2429

102' : 12558-1940
GWP1879

116' : 12459-1807
RST2813

119' : 13017-1847
LDS4307

120' : 12467-1901
B 2540

122' : 12457-1734
FEN 17

124' : 13002-1929
B 2740

125' : 13025-1828
GWP1893

126' : 13024-1729
HJ 2630

132' : 12465-1645
GWP1855

133' : 12450-1834
GWP1852

136' : 12514-1551
GWP1867



Selections
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Binary 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.

12540-1802 S 643 (HD 112074)

 
 
12h 54m 00.29s -18° 02' 15.4" P.A. 295.00 sep 23.5 mag 7.07,8.17 Sp A5III+A0 dist. 7.53 pc (24.56 l.y.)
 
 
Coord 2000 12540-1802 Discov num S   643 Comp Coord arcsec 2000 12 54 00.29 -18 02 15.4
Date first 1825 Date last 2020 Obs 24
Pa first 294 Pa last 295.1 P.A. Now (θ) 295.1°
Sep first 23.4 Sep last 23.45 Sep. Now (ρ) 23.45"
Mag pri 7.07 Mag sec 8.17 delta mag (ΔM) 1.1 Spectral class A5III+A0 (white/white)
Pri motion ra -036 Sec motion ra -101
Pri motion dec +003 Sec motion dec +097
Notes N Y (See Notes, Parallax indicates components are non-physical)
rPM=0.816
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 112074 Constellation Corvus SAO 157580 HIP 62951
Tycho2 6114-01409-1 Gaia DR2 3510383187426542848 HD 112074 GC 17506
BD BD-17 3725 Distance 7.53 Distance ly 24.56
 
 
WDS 12540-1802 S 643 (HD 112074) : NOTES
 
 
discov_num notes refcode
S 643 B is BD-17@3725.
 
 
REFERENCES
 
 
refcode metd author reference
S__1826 Ma - South, J. 1826RSPT..116....1S
S__1826 Phil. Trans. R. Soc., 116, Pt.1, 1826
S__1844A Ma - South, J. 1844QB43.S66.......
S__1844A cited by Smyth (Cycle of Celestial Objects 2, 1844)
S__1852A Ma - South, J. .
S__1852A cited by Bishop (Bishop Obs. Astron. Observations 1852)
S__1880A Ma - South, J. 1880MNRAS..40..497B
S__1880A cited by Burnham (MNRAS 40, 497, 1880)
S__1906A Ma - South, J. 1906MmRAS..56....1L
S__1906A cited by Lewis (MemRAS 56, 1, 1906)
S__1906B Ma - South, J. 1906QB821.B972.....
S__1906B cited in BDS (Burnham Double Star Cat., 1906)
S__1913A Ma - South, J. 1913QB811.B8.......
S__1913A cited by Burnham (Carnegie Inst. Wash. #168, 1913)
S__1922A Ma - South, J. 1922AN....216...49R
S__1922A cited by Rabe (AN 216, 49, 1922)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12540-1802 S 643 2002 16 295 23.7 7.07 8.17 A5III A0 NYD 125400.29-180215.4
12540-1802 S 643 2012 18 295 23.7 7.07 8.17 A5III A0 NYD 125400.29-180215.4
12540-1802 S 643 2013 19 295 23.3 7.07 8.17 A5III A0 NYD 125400.29-180215.4
12540-1802 S 643 2015 21 295 23.3 7.07 8.17 A5III+A0 NY 125400.29-180215.4
12540-1802 S 643 2020 23 295 23.5 7.07 8.17 A5III+A0 NY 125400.29-180215.4

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

 
 
WDS 12540-1802 S 643 (HD 112074) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 12540-1802 S 643 (HD 112074) : MEASURES
 
 
No records found.

 
 
WDS 12540-1802 (HD 112074) : VIRTUAL EYEPIECE
 
 

12540-1802 S 643A mag 7.07 Sp A5III 12540-1802 S 643B sep 22.5 P.A. 296.20 mag 8.17 Sp A0 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 12540-1802 (HD 112074) : ALADIN DSS IMAGE @ 12h 54m 00.29s -18° 02' 15.4"
 
 
 
 
WDS 12540-1802 S 643 (HD 112074) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

12540-1802 S 643 distance=0' 12533-1831 RST2821 distance=31' 12542-1835 UC 2426 distance=34' 12529-1732 UC 2421 distance=35' 12533-1724 GWP1873 distance=40' 12537-1718 LDS 424 distance=46' 12505-1835 HU 136 distance=61' 12503-1837 GWP1864 distance=63' 12566-1709 HJ 2624 distance=65' 12584-1740 UC 2441 distance=67' 12485-1746 FEN 18 distance=81' 12529-1643 UC 2420 distance=81' 12578-1907 NSN 103 distance=84' 12495-1709 RST3810AB distance=85' 12495-1709 RST3810AB,C distance=85' 12515-1920 J 1584 distance=86' 12545-1942 UC 2429 distance=100' 12558-1940 GWP1879 distance=102' 12459-1807 RST2813 distance=116' 13017-1847 LDS4307 distance=119' 12467-1901 B 2540 distance=120' 12457-1734 FEN 17 distance=122' 13002-1929 B 2740 distance=124' 13025-1828 GWP1893 distance=125' 13024-1729 HJ 2630 distance=126' 12465-1645 GWP1855 distance=132' 12450-1834 GWP1852 distance=133' 12514-1551 GWP1867 distance=136' 13040-1738 BU 798AB distance=146' 13040-1738 UC 2465AC distance=146' 12489-2013 B 2301 distance=150' 12517-1534 GWP1868 distance=153' 12544-1528 GWP1875 distance=155' 12485-1543 WSI 74Aa,Ab distance=160' 12485-1543 HDS1795AB distance=160' 12490-1539 RST3809 distance=161' 12509-1528 GWP1865 distance=162' 12462-2010 SLW 771 distance=169' 12526-1514 GWP1871 distance=170' 13037-1620 BNV 8 distance=172' 13046-1933 SKF1586 distance=176' 12440-1615 TSN 163 distance=180' 13030-2011 B 2307 distance=182' 12505-1505 KPP 278 distance=184' 13061-1913 UC 2478 distance=186' 12434-1955 UC 2391 distance=188' 13052-1944 UC 2474 distance=189' 13051-1951 TDS8682 distance=192' 12421-1634 GWP1848 distance=192' 13078-1800 COM 2 distance=198' 12465-2051 RST2814AB distance=200' 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 12540-1802 S 643 295 23.5
Show 12533-1831 RST2821 336 1.7 31
Show 12542-1835 UC 2426 193 19.5 34
Show 12529-1732 UC 2421 257 19.7 35
Show 12533-1724 GWP1873 107 27.7 40
Show 12537-1718 LDS 424 345 4.3 46
Show 12505-1835 HU 136 130 1.1 61
Show 12503-1837 GWP1864 213 61.4 63
Show 12566-1709 HJ 2624 230 28.3 65
Show 12584-1740 UC 2441 148 38.9 67
Show 12485-1746 FEN 18 218 4.0 81
Show 12529-1643 UC 2420 173 6.9 81
Show 12578-1907 NSN 103 341 1.5 84
Show 12495-1709 RST3810 AB 56 0.3 85
Show 12495-1709 RST3810 AB,C 253 4.5 85
Show 12515-1920 J 1584 275 11.2 86
Show 12545-1942 UC 2429 351 8.2 100
Show 12558-1940 GWP1879 310 66.1 102
Show 12459-1807 RST2813 121 1.0 116
Show 13017-1847 LDS4307 121 149.6 119
Show 12467-1901 B 2540 75 0.2 120
Show 12457-1734 FEN 17 90 4.6 122
Show 13002-1929 B 2740 117 9.7 124
Show 13025-1828 GWP1893 158 118.9 125
Show 13024-1729 HJ 2630 99 13.7 126
Show 12465-1645 GWP1855 155 75.7 132
Show 12450-1834 GWP1852 325 28.3 133
Show 12514-1551 GWP1867 83 90.5 136
Show 13040-1738 BU 798 AB 180 0.3 146
Show 13040-1738 UC 2465 AC 204 121.9 146
Show 12489-2013 B 2301 109 0.7 150
Show 12517-1534 GWP1868 224 109.2 153
Show 12544-1528 GWP1875 28 93.8 155
Show 12485-1543 WSI 74 Aa,Ab 153 0.1 160
Show 12485-1543 HDS1795 AB 63 2.7 160
Show 12490-1539 RST3809 16 0.3 161
Show 12509-1528 GWP1865 206 27.8 162
Show 12462-2010 SLW 771 108 64.0 169
Show 12526-1514 GWP1871 42 13.3 170
Show 13037-1620 BNV 8 330 0.6 172
Show 13046-1933 SKF1586 323 18.3 176
Show 12440-1615 TSN 163 85 0.3 180
Show 13030-2011 B 2307 52 1.5 182
Show 12505-1505 KPP 278 96 3.6 184
Show 13061-1913 UC 2478 184 35.0 186
Show 12434-1955 UC 2391 268 20.4 188
Show 13052-1944 UC 2474 317 6.1 189
Show 13051-1951 TDS8682 66 1.9 192
Show 12421-1634 GWP1848 46 73.7 192
Show 13078-1800 COM 2 181 3.4 198
Show 12465-2051 RST2814 AB 292 0.1 200

 
 
WDS 12540-1802 : COMPONENTS
 
 
  A
B pa=296.2°
sep=22.51"
 
 
12540-1802 A
 
 
Componente originario normalizzato AB Name HD 112074 Coord arcsec 2000 125400.29-180215.4 Mag 7.07
Spectral class A5III (white) PmRA -36.00 PmDE 3.0 SAO 157580
HIP 62954 Tycho2 6114-01409-1 HD 112074 GC 17506
BD BD-17 3726
Tycho2
Tycho2 6114-01409-1 Pflag RAmdeg 193.50119836 DEmdeg -18.03762190
PmRA -33.7 PmDE 2.8 E RAmdeg 5 E DEmdeg 6
E pmRA 0.8 E pmDE 0.8 EpRAm 1990.85 EpDEm 1990.79
Num 19 Q RAmdeg 1.0 Q DEmdeg 1.3 Q pmRA 1.0
Q pmDE 1.4 BTmag 7.310 E BTmag 0.016 VTmag 7.072
E VTmag 0.012 Prox 237 TYC T HIP 62954
CCDM A RAdeg 193.50127944 DEdeg -18.03762861 EpRA 1990 1.73
EpDE 1990 1.89 E RAdeg 4.7 E DEdeg 5.8 Posflg
Corr 0.0
SAO
SAO 157580 DelFlag RA1950 PmRA1950 -0.0024
DE1950 PmDE1950 -0.003 Vmag 6.8 SpType A0
Double code Source 74 CatNum 1334 DM BD-17 3726
DMcomp BDsup HD 112074 M HD 0
GC 17506 RA1950rad 3.36570158 DE1950rad -0.31008567 PmRA2000 -0.0022
PmDE2000 0.002
Hipparcos
Catalog H HIP 62954 Proxy RAhms 12 54 00.31
DEdms -18 02 15.5 Vmag 7.06 VarFlag R Vmag H
RAdeg 193.501 DEdeg -18.0376 AstroRef A Plx 3.44
CCDM 12540-1802 N CCDM I Nsys 2 Ncomp 1
MultFlag C Source P Qual D M HIP
Theta Rho HD 112074 BD BD-17 3726
CD CP Dm number -17 3726 VIred 0.32
SpType A4:+... R SpType Coord arcsec 2000 125400.31-180215.5
Hipparcos 2
HIP 62954 Sn 95 So 3 Nc 1
RArad 3.3772344501 DErad -0.3148159827 Plx 4.39 PmRA -34.53
PmDE 2.63 E RArad 1.42 E DErad 0.89 E Plx 1.61
E pmRA 1.34 E pmDE 0.86 Hpmag 7.1306 E Hpmag 0.0429
SHp 0.031 VA 0 BV 0.28 E BV 0.015
VI 0.32
CCDM
Ccdm 12540-1802 RComp Comp A Note1
Note2 Discov num DRAs 0.29 DDEs -15.6
R dRAs 10 Year Theta Rho
Obs 2 Vmag 6.8 Sp A0 PmNote *
PmRA -35 PmDE -3 Dm number -17 3726 Cat1 BD
Name2 157580 Cat2 SAO HD 112074 M HD
ADS BDS A 8699 M ADS BDS N IDS IDS 12487S1730A
HIC 62954
 
 
12540-1802 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 125358.87-180205.5 Mag 8.17 Spectral class A0 (white)
PmRA -101.00 PmDE 97.0 HIP 62951 Tycho2 6114-01761-1
BD BD-17 3725 Calc delta mag 1.1 Calc coord yes
Tycho2
Tycho2 6114-01761-1 Pflag RAmdeg 193.49491955 DEmdeg -18.03488128
PmRA -33.4 PmDE 2.1 E RAmdeg 8 E DEmdeg 10
E pmRA 2.7 E pmDE 2.7 EpRAm 1991.66 EpDEm 1991.56
Num 3 Q RAmdeg 0.0 Q DEmdeg 2.9 Q pmRA 0.0
Q pmDE 2.9 BTmag 8.559 E BTmag 0.021 VTmag 8.173
E VTmag 0.017 Prox 237 TYC T HIP 62951
CCDM B RAdeg 193.49499944 DEdeg -18.03488611 EpRA 1990 1.78
EpDE 1990 1.74 E RAdeg 8.1 E DEdeg 10.2 Posflg
Corr -0.1
Hipparcos
Catalog H HIP 62951 Proxy RAhms 12 53 58.73
DEdms -18 02 06.0 Vmag 8.51 VarFlag R Vmag H
RAdeg 193.495 DEdeg -18.035 AstroRef B Plx 48.07
CCDM 12540-1802 N CCDM I Nsys 2 Ncomp 1
MultFlag C Source I Qual D M HIP
Theta Rho HD BD BD-17 3725
CD CP Dm number -17 3725 VIred 0.16
SpType A2 R SpType Coord arcsec 2000 125358.73-180206.0
Hipparcos 2
HIP 62951 Sn 95 So 3 Nc 1
RArad 3.3771199103 DErad -0.3147702591 Plx 132.83 PmRA -21.92
PmDE 148.7 E RArad 33.77 E DErad 20.16 E Plx 38.32
E pmRA 31.72 E pmDE 17.36 Hpmag 8.8994 E Hpmag 0.1652
SHp 0 VA 0 BV 0.497 E BV 0.039
VI 0.57
CCDM
Ccdm 12540-1802 RComp Comp B Note1
Note2 Discov num S 643 DRAs -1.30 DDEs -6.5
R dRAs 12 Year 1825 Theta 294 Rho 23.4
Obs 6 Vmag 9.3 Sp A2 PmNote
PmRA 27 PmDE 6 Dm number -17 3725 Cat1 BD
Name2 157579 Cat2 SAO HD M HD
ADS BDS A 8699 M ADS BDS N IDS IDS 12487S1730B
HIC 62951