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Doubles in session


Current system
08449-0815
HDS 1261
HD 74643


Nearby doubles
26' : 08463-0802
WSP 36AB

38' : 08425-0830
H 6 107

40' : 08423-0824
STF1264

43' : 08464-0852
GWP1079

44' : 08471-0747
GWP1082

64' : 08437-0714
S 579AB

65' : 08428-0913
J 2885

68' : 08476-0721
GWP1085

69' : 08488-0742
J 2889

72' : 08446-0927
HDS1259

73' : 08492-0849
A 3068

82' : 08497-0852
GWP1087

85' : 08461-0937
DAM 479

86' : 08460-0939
RST4421

91' : 08390-0822
J 2496

92' : 08480-0934
TDS 493

94' : 08459-0643
HJ 796

98' : 08449-0637
JNN 63

99' : 08501-0716
HJ 2471

101' : 08481-0647
GWP1086

104' : 08500-0705
TVB 204

107' : 08380-0844
HDS1242

109' : 08380-0736
GWP1054

114' : 08394-0935
RST4415

116' : 08404-0641
GWP1063

119' : 08516-0711
BU 587AB



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.

08449-0815 HDS 1261 (HD 74643)

 
 
08h 44m 52.39s -08° 15' 23.7" P.A. 207.00 sep 0.7 mag 7.75,11.31 Sp F5 dist. 79.3 pc (258.68 l.y.)
 
 
Coord 2000 08449-0815 Discov num HDS1261 Comp Coord arcsec 2000 08 44 52.39 -08 15 23.7
Date first 1991 Date last 2019 Obs 5
Pa first 219 Pa last 206.5 P.A. Now (θ) 206.5°
Sep first 0.8 Sep last 0.742 Sep. Now (ρ) 0.742"
Mag pri 7.75 Mag sec 11.31 delta mag (ΔM) 3.56 Spectral class F5 (yellow-white)
Pri motion ra +161 Sec motion ra
Pri motion dec -110 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 74643 Constellation Hydra SAO 136237 HIP 42924
Tycho2 5442-01112-1 Gaia DR2 5750914621834859776 HD 74643 GC 12043
BD BD-07 2597 Distance 79.3 Distance ly 258.68
 
 
WDS 08449-0815 HDS 1261 (HD 74643) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
HDS Hipparcos Double Star (from additional DD list) ...................
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
08449-0815 HDS1261 2005 2 213 0.7 7.75 11.31 F5 084452.39-081523.7
08449-0815 HDS1261 2011 4 210 0.7 7.75 11.31 F5 084452.39-081523.7
08449-0815 HDS1261 2019 5 207 0.7 7.75 11.31 F5 084452.39-081523.7

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

 
 
WDS 08449-0815 HDS 1261 (HD 74643) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 08449-0815 HDS 1261 (HD 74643) : MEASURES
 
 
No records found.

 
 
WDS 08449-0815 (HD 74643) : VIRTUAL EYEPIECE
 
 

08449-0815 HDS1261A mag 7.75 Sp F5 08449-0815 HDS1261B sep 0.7 P.A. 206.30 mag 11.31 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 08449-0815 (HD 74643) : ALADIN DSS IMAGE @ 08h 44m 52.39s -08° 15' 23.7"
 
 
 
 
WDS 08449-0815 HDS 1261 (HD 74643) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

08449-0815 HDS1261 distance=0' 08463-0802 WSP 36AB distance=26' 08463-0802 WSP 36AC distance=26' 08463-0802 WSP 36AD distance=26' 08463-0802 WSP 36AE distance=26' 08425-0830 H 6 107 distance=38' 08423-0824 STF1264 distance=40' 08464-0852 GWP1079 distance=43' 08471-0747 GWP1082 distance=44' 08437-0714 S 579AB distance=64' 08437-0714 BU 1421AC distance=64' 08428-0913 J 2885 distance=65' 08476-0721 GWP1085 distance=68' 08488-0742 J 2889 distance=69' 08446-0927 HDS1259 distance=72' 08492-0849 A 3068 distance=73' 08497-0852 GWP1087 distance=82' 08461-0937 DAM 479 distance=85' 08460-0939 RST4421 distance=86' 08390-0822 J 2496 distance=91' 08480-0934 TDS 493 distance=92' 08459-0643 HJ 796 distance=94' 08449-0637 JNN 63 distance=98' 08501-0716 HJ 2471 distance=99' 08481-0647 GWP1086 distance=101' 08500-0705 TVB 204 distance=104' 08380-0844 HDS1242 distance=107' 08380-0736 GWP1054 distance=109' 08394-0935 RST4415 distance=114' 08404-0641 GWP1063 distance=116' 08516-0711 BU 587AB distance=119' 08516-0711 H 5 120AB,C distance=119' 08516-0711 BU 587AB,D distance=119' 08530-0834 GWP1099 distance=122' 08389-0651 RST4414 distance=123' 08488-0622 UC 1715 distance=128' 08506-0954 UC 1720 distance=131' 08532-0732 GWP1100 distance=132' 08364-0858 UC 1691 distance=133' 08369-0714 SKF 780 distance=133' 08538-0758 RST4425 distance=134' 08442-0602 TVB 198 distance=135' 08517-0647 BU 407AB distance=136' 08517-0647 BU 407AC distance=136' 08379-0648 HJ 99BC distance=136' 08527-0929 HJ 799 distance=136' 08379-0648 HJ 99AB distance=137' 08379-0648 JNN 237AD distance=137' 08445-1032 J 2886 distance=138' 08389-1002 GWP1057 distance=139' 08385-0958 DAM1428 distance=140' 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 08449-0815 HDS1261 207 0.7
Show 08463-0802 WSP 36 AB 67 4.9 26
Show 08463-0802 WSP 36 AC 257 9.5 26
Show 08463-0802 WSP 36 AD 259 13.1 26
Show 08463-0802 WSP 36 AE 265 17.9 26
Show 08425-0830 H 6 107 151 93.5 38
Show 08423-0824 STF1264 269 6.4 40
Show 08464-0852 GWP1079 99 27.9 43
Show 08471-0747 GWP1082 55 159.6 44
Show 08437-0714 S 579 AB 310 78.8 64
Show 08437-0714 BU 1421 AC 343 57.0 64
Show 08428-0913 J 2885 200 3.0 65
Show 08476-0721 GWP1085 99 16.3 68
Show 08488-0742 J 2889 19 5.2 69
Show 08446-0927 HDS1259 209 0.2 72
Show 08492-0849 A 3068 21 1.0 73
Show 08497-0852 GWP1087 248 88.5 82
Show 08461-0937 DAM 479 8 7.2 85
Show 08460-0939 RST4421 55 3.2 86
Show 08390-0822 J 2496 167 8.5 91
Show 08480-0934 TDS 493 12 1.5 92
Show 08459-0643 HJ 796 123 22.5 94
Show 08449-0637 JNN 63 23 0.3 98
Show 08501-0716 HJ 2471 41 13.3 99
Show 08481-0647 GWP1086 308 17.0 101
Show 08500-0705 TVB 204 143 6.7 104
Show 08380-0844 HDS1242 223 0.2 107
Show 08380-0736 GWP1054 108 209.9 109
Show 08394-0935 RST4415 170 1.2 114
Show 08404-0641 GWP1063 143 9.5 116
Show 08516-0711 BU 587 AB 121 1.2 119
Show 08516-0711 H 5 120 AB,C 6 45.6 119
Show 08516-0711 BU 587 AB,D 56 55.5 119
Show 08530-0834 GWP1099 337 22.2 122
Show 08389-0651 RST4414 91 7.9 123
Show 08488-0622 UC 1715 289 8.3 128
Show 08506-0954 UC 1720 197 17.6 131
Show 08532-0732 GWP1100 324 11.5 132
Show 08364-0858 UC 1691 186 57.2 133
Show 08369-0714 SKF 780 219 25.3 133
Show 08538-0758 RST4425 307 0.9 134
Show 08442-0602 TVB 198 43 3.7 135
Show 08517-0647 BU 407 AB 167 5.8 136
Show 08517-0647 BU 407 AC 165 91.9 136
Show 08379-0648 HJ 99 BC 216 9.7 136
Show 08527-0929 HJ 799 348 9.6 136
Show 08379-0648 HJ 99 AB 175 60.5 137
Show 08379-0648 JNN 237 AD 39 6.7 137
Show 08445-1032 J 2886 114 6.2 138
Show 08389-1002 GWP1057 341 29.1 139
Show 08385-0958 DAM1428 236 6.0 140

 
 
WDS 08449-0815 : COMPONENTS
 
 
  A
B pa=206.3°
sep=0.74"
 
 
08449-0815 A
 
 
Componente originario normalizzato AB Name HD 74643 Coord arcsec 2000 084452.39-081523.7 Mag 7.75
Spectral class F5 (yellow-white) PmRA 161.00 PmDE -110.0 SAO 136237
HIP 42924 Tycho2 5442-01112-1 HD 74643 GC 12043
BD BD-07 2597
Tycho2
Tycho2 5442-01112-1 Pflag RAmdeg 131.21866368 DEmdeg -8.25684679
PmRA 160.3 PmDE -112.2 E RAmdeg 5 E DEmdeg 6
E pmRA 1.3 E pmDE 1.4 EpRAm 1991.41 EpDEm 1991.15
Num 13 Q RAmdeg 0.8 Q DEmdeg 1.5 Q pmRA 0.8
Q pmDE 1.4 BTmag 8.197 E BTmag 0.017 VTmag 7.677
E VTmag 0.012 Prox 999 TYC T HIP 42924
CCDM AB RAdeg 131.21829278 DEdeg -8.25658222 EpRA 1990 1.76
EpDE 1990 1.51 E RAdeg 5.0 E DEdeg 6.0 Posflg P
Corr -0.1
SAO
SAO 136237 DelFlag RA1950 PmRA1950 0.0109
DE1950 PmDE1950 -0.101 Vmag 7.5 SpType F5
Double code Source 70 CatNum 12043 DM BD-07 2597
DMcomp BDsup HD 74643 M HD 0
GC 12043 RA1950rad 2.27950527 DE1950rad -0.14089793 PmRA2000 0.0112
PmDE2000 -0.097
Hipparcos
Catalog H HIP 42924 Proxy H RAhms 08 44 52.39
DEdms -08 15 23.7 Vmag 7.6 VarFlag R Vmag G
RAdeg 131.218 DEdeg -8.25657 AstroRef A Plx 14.69
CCDM 08449-0815 N CCDM H Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 219 Rho 0.751 HD 74643 BD BD-07 2597
CD CP Dm number -07 2597 VIred 0.59
SpType F5 R SpType Coord arcsec 2000 084452.39-081523.7
Hipparcos 2
HIP 42924 Sn 15 So 3 Nc 2
RArad 2.2901908733 DErad -0.1441043623 Plx 12.61 PmRA 159.96
PmDE -110.3 E RArad 0.65 E DErad 0.47 E Plx 0.89
E pmRA 0.69 E pmDE 0.51 Hpmag 7.709 E Hpmag 0.0012
SHp 0.01 VA 0 BV 0.518 E BV 0.015
VI 0.59
CCDM
Ccdm 08449-0815 RComp Comp A Note1
Note2 Discov num DRAs -1.52 DDEs -24.6
R dRAs 82 Year Theta Rho
Obs 2 Vmag 7.7 Sp F5 PmNote *
PmRA 161 PmDE -110 Dm number -07 2597 Cat1 BD
Name2 136237 Cat2 SAO HD 74643 M HD
ADS BDS M ADS BDS N IDS IDS
HIC 42924
 
 
08449-0815 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 084452.37-081524.4 Mag 11.31 Calc delta mag 3.56
Calc coord yes
CCDM
Ccdm 08449-0815 RComp Comp B Note1
Note2 Discov num HDS DRAs -1.55 DDEs -25.2
R dRAs 82 Year 1991 Theta 219 Rho 0.8
Obs 1 Vmag 11.3 Sp PmNote *
PmRA 161 PmDE -110 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC 42924