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Doubles in session


Current system
10084-1945
BU 911 AC


Nearby doubles
15' : 10074-1943
BU 218

20' : 10074-2000
ARA 664

30' : 10073-2011
DON1087

33' : 10066-1926
GWP1292

36' : 10066-1919
S 607AB

42' : 10113-1949
GWP1309

45' : 10111-1922
XMI 97

51' : 10100-1901
GWP1305

54' : 10114-2016
UC 1891AB

54' : 10082-2038
LDS3958

65' : 10100-1845
UC 1887

65' : 10059-1851
ARA 408

66' : 10056-2038
ARA1082

68' : 10093-2051
ARA1084

74' : 10057-2049
ARA1083

78' : 10059-2054
LDS3955

84' : 10027-2010
DAM 715

85' : 10025-2006
ARA 662

87' : 10121-1837
SUB 4

88' : 10022-1946
B 781

92' : 10021-1921
WIS 165

93' : 10134-1847
LDS3965

94' : 10124-1832
ARA 410

97' : 10146-2028
ARA 665

101' : 10031-1837
GWP1276

104' : 10157-1951
ARA 666AB



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.

10084-1945 BU 911 AC

 
 
10h 08m 21.38s -19° 45' 18.8" P.A. 54.00 sep 83.4 mag 7.35,11.38 Sp G0V dist. 37.57 pc (122.55 l.y.)
 
 
Coord 2000 10084-1945 Discov num BU  911 Comp AC Coord arcsec 2000 10 08 21.38 -19 45 18.8
Date first 1880 Date last 2016 Obs 20
Pa first 83 Pa last 54.2 P.A. Now (θ) 54.2°
Sep first 47.3 Sep last 83.4 Sep. Now (ρ) 83.4"
Mag pri 7.35 Mag sec 11.38 delta mag (ΔM) 4.03 Spectral class G0V (yellow)
Pri motion ra -148 Sec motion ra +001
Pri motion dec -329 Sec motion dec +003
Notes N L U (See Notes, Linear solution, Proper motion indicates non-physical)
rPM=1.009
This double is not physical.
 
 
10084-1945 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 87998 155757 10 08 21 -19 45 19 BU 911 AB 2016 22 315 4.1 7.35 11.21 3.86
Show 155757 10 08 21 -19 45 19 BU 911 AC 2016 20 54 83.4 7.35 11.38 4.03 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Hydra SAO 155757 HIP 49668 Tycho2 6067-00598-1
HD 87998 BD BD-19 2926 Distance 37.57 Distance ly 122.55
 
 
WDS 10084-1945 BU 911 AC : NOTES
 
 
discov_num notes refcode
BU 911 HIP 49668. See Allen et al. (2000) for information on metallicity, AlC2000
age, galactic orbital parameters, etc.
AB CfA: A=SB? Tok2014d
AC: Optical pair, based on study of relative motion of the components
using the method of apparent motion parameters. Kiy2008
 
 
REFERENCES
 
 
refcode metd author reference
AlC2000 Po - Allen, C., Poveda, A., & Herrera, M 2000A&A...356..529A
AlC2000 A&A 356, 529, 2000
Kiy2008 - Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S. 2008SvAL...32..405K
Kiy2008 SvAL 34, 405, 2008
Tok2014d E2 - Tokovinin, A. 2014AJ....147...86T
Tok2014d AJ 147, 86, 2014
 
 
DISCOVERER
 
 
idgroup discov author
1 BU Burnham, S.W. (BU 1 - 81)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
10084-1945 BU 911 AC 1999 17 55 78.4 7.35 9.20 G0V NLD 100821.47-194515.9
10084-1945 BU 911 AC 2016 19 54 83.4 7.35 11.38 G0V NL U 100821.38-194518.8

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

 
 
WDS 10084-1945 BU 911 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 10084-1945 BU 911 AC : MEASURES
 
 
No records found.

 
 
WDS 10084-1945 : VIRTUAL EYEPIECE
 
 

10084-1945 BU 911A mag 7.35 Sp G0V 10084-1945 BU 911B sep 4.0 P.A. 317.00 mag 11.21 10084-1945 BU 911C sep 80.2 P.A. 52.50 mag 11.38 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 10084-1945 : ALADIN DSS IMAGE @ 10h 08m 21.38s -19° 45' 18.8"
 
 
 
 
WDS 10084-1945 BU 911 AC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

10084-1945 BU 911AB distance=1' 10084-1945 BU 911AC distance=1' 10074-1943 BU 218 distance=15' 10074-2000 ARA 664 distance=20' 10073-2011 DON1087 distance=30' 10066-1926 GWP1292 distance=33' 10066-1919 S 607AB distance=36' 10066-1919 TOK 66AC distance=36' 10066-1919 TOK 66Ba,Bb distance=37' 10113-1949 GWP1309 distance=42' 10111-1922 XMI 97 distance=45' 10100-1901 GWP1305 distance=51' 10114-2016 UC 1891AB distance=54' 10082-2038 LDS3958 distance=54' 10100-1845 UC 1887 distance=65' 10059-1851 ARA 408 distance=65' 10056-2038 ARA1082 distance=66' 10093-2051 ARA1084 distance=68' 10057-2049 ARA1083 distance=74' 10059-2054 LDS3955 distance=78' 10027-2010 DAM 715 distance=84' 10025-2006 ARA 662 distance=85' 10121-1837 SUB 4 distance=87' 10022-1946 B 781 distance=88' 10021-1921 WIS 165 distance=92' 10134-1847 LDS3965 distance=93' 10124-1832 ARA 410 distance=94' 10146-2028 ARA 665 distance=97' 10031-1837 GWP1276 distance=101' 10157-1951 ARA 666AB distance=104' 10157-1951 ARA 666AC distance=104' 10157-1951 ARA 666BC distance=104' 10045-1814 RST3676 distance=107' 10027-2103 DON 383 distance=111' 10040-1806 BU 1072AB distance=117' 10040-1806 SHJ 110AC distance=117' 10040-1806 BU 1072BC distance=117' 10014-1830 KPP 209 distance=124' 10166-2029 B 788 distance=124' 10140-1807 DAM2161 distance=127' 09593-1956 LDS 294 distance=129' 10168-2040 HLD 101 distance=131' 10152-1817 UC 1901 distance=132' 10157-1825 HLD 100 distance=132' 10143-1802 HU 459 distance=134' 10063-1735 GWP1288 distance=134' 10166-2054 SHN 132 distance=135' 10007-2121 DON 380 distance=145' 10008-1809 ARA 220 distance=145' 10155-2130 ARA1472 distance=146' 10183-2029 LDS3975 distance=146' 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 10084-1945 BU 911 AB 315 4.1 1
Show 10084-1945 BU 911 AC 54 83.4 1
Show 10074-1943 BU 218 146 0.4 15
Show 10074-2000 ARA 664 2 13.3 20
Show 10073-2011 DON1087 234 6.6 30
Show 10066-1926 GWP1292 127 40.9 33
Show 10066-1919 S 607 AB 327 9.5 36
Show 10066-1919 TOK 66 AC 123 100.3 36
Show 10066-1919 TOK 66 Ba,Bb 47 0.2 37
Show 10113-1949 GWP1309 189 7.0 42
Show 10111-1922 XMI 97 300 17.9 45
Show 10100-1901 GWP1305 143 26.8 51
Show 10114-2016 UC 1891 AB 60 9.5 54
Show 10082-2038 LDS3958 75.0 54
Show 10100-1845 UC 1887 32 6.4 65
Show 10059-1851 ARA 408 308 8.3 65
Show 10056-2038 ARA1082 124 11.6 66
Show 10093-2051 ARA1084 196 13.5 68
Show 10057-2049 ARA1083 274 15.4 74
Show 10059-2054 LDS3955 131 4.1 78
Show 10027-2010 DAM 715 114 16.1 84
Show 10025-2006 ARA 662 95 10.8 85
Show 10121-1837 SUB 4 193 399.4 87
Show 10022-1946 B 781 341 2.3 88
Show 10021-1921 WIS 165 229 987.5 92
Show 10134-1847 LDS3965 97 37.1 93
Show 10124-1832 ARA 410 181 10.3 94
Show 10146-2028 ARA 665 61 11.4 97
Show 10031-1837 GWP1276 288 20.2 101
Show 10157-1951 ARA 666 AB 1 20.7 104
Show 10157-1951 ARA 666 AC 217 11.2 104
Show 10157-1951 ARA 666 BC 194 30.2 104
Show 10045-1814 RST3676 309 0.5 107
Show 10027-2103 DON 383 214 4.3 111
Show 10040-1806 BU 1072 AB 53 12.7 117
Show 10040-1806 SHJ 110 AC 274 21.2 117
Show 10040-1806 BU 1072 BC 259 32.0 117
Show 10014-1830 KPP 209 243 3.7 124
Show 10166-2029 B 788 234 3.7 124
Show 10140-1807 DAM2161 198 22.9 127
Show 09593-1956 LDS 294 170 24.3 129
Show 10168-2040 HLD 101 110 1.4 131
Show 10152-1817 UC 1901 218 31.3 132
Show 10157-1825 HLD 100 206 1.8 132
Show 10143-1802 HU 459 95 1.3 134
Show 10063-1735 GWP1288 264 30.3 134
Show 10166-2054 SHN 132 -1 0.1 135
Show 10007-2121 DON 380 283 2.9 145
Show 10008-1809 ARA 220 6 7.7 145
Show 10155-2130 ARA1472 332 6.7 146
Show 10183-2029 LDS3975 309 31.5 146

 
 
WDS 10084-1945 : COMPONENTS
 
 
  A B
B pa=317.0°
sep=4.00"
 
C pa=52.5°
sep=80.21"
pa=55.4°
sep=80.69"
 
 
10084-1945 A
 
 
Name HD 87998 Coord arcsec 2000 100821.38-194518.8 Mag 7.35 Spectral class G0V (yellow)
PmRA -148.00 PmDE -329.0 SAO 155757 HIP 49668
Tycho2 6067-00598-1 HD 87998 GC 13929 BD BD-19 2926
Tycho2
Tycho2 6067-00598-1 Pflag RAmdeg 152.08909011 DEmdeg -19.75521639
PmRA -144.0 PmDE -328.0 E RAmdeg 5 E DEmdeg 5
E pmRA 1.4 E pmDE 1.3 EpRAm 1991.39 EpDEm 1991.22
Num 11 Q RAmdeg 1.2 Q DEmdeg 1.2 Q pmRA 1.2
Q pmDE 1.2 BTmag 8.013 E BTmag 0.016 VTmag 7.354
E VTmag 0.011 Prox 43 TYC T HIP 49668
CCDM A RAdeg 152.08944500 DEdeg -19.75445028 EpRA 1990 1.65
EpDE 1990 1.59 E RAdeg 4.7 E DEdeg 5.1 Posflg
Corr 0.2
SAO
SAO 155757 DelFlag RA1950 PmRA1950 -0.0089
DE1950 PmDE1950 -0.333 Vmag 7.2 SpType G0
Double code Source 70 CatNum 13929 DM BD-19 2926
DMcomp BDsup HD 87998 M HD 0
GC 13929 RA1950rad 2.64413686 DE1950rad -0.34043217 PmRA2000 -0.0087
PmDE2000 -0.328
Hipparcos
Catalog H HIP 49668 Proxy H RAhms 10 08 21.47
DEdms -19 45 15.9 Vmag 7.26 VarFlag R Vmag G
RAdeg 152.089 DEdeg -19.7544 AstroRef A Plx 26.49
CCDM 10084-1945 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual B M HIP AB
Theta 314 Rho 4.334 HD 87998 BD BD-19 2926
CD CP Dm number -19 2926 VIred 0.69
SpType G2/G3V R SpType Coord arcsec 2000 100821.47-194515.9
Hipparcos 2
HIP 49668 Sn 15 So 3 Nc 2
RArad 2.6544619184 DErad -0.3447796759 Plx 26.62 PmRA -148.66
PmDE -328.06 E RArad 0.59 E DErad 0.52 E Plx 0.74
E pmRA 0.66 E pmDE 0.6 Hpmag 7.3869 E Hpmag 0.0009
SHp 0.007 VA 0 BV 0.622 E BV 0.009
VI 0.69
CCDM
Ccdm 10084-1945 RComp Comp A Note1
Note2 Discov num DRAs -2.48 DDEs -18.8
R dRAs 10 Year Theta Rho
Obs 3 Vmag 7.2 Sp G0 PmNote *
PmRA -126 PmDE -332 Dm number -19 2926 Cat1 BD
Name2 155757 Cat2 SAO HD 87998 M HD
ADS BDS A 7655 M ADS BDS N IDS IDS 10036S1915A
HIC 49668
 
 
10084-1945 B
 
 
Coord arcsec 2000 100821.19-194515.9 Mag 11.21 PmRA -148.00 PmDE -329.0
Calc delta mag 3.86 Calc coord yes
CCDM
Ccdm 10084-1945 RComp Comp B Note1
Note2 Discov num BU 911 DRAs DDEs
R dRAs Year 1880 Theta 312 Rho 4.6
Obs 12 Vmag 10.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 7655 M ADS BDS N IDS IDS 10036S1915B
HIC 49668
 
 
10084-1945 C
 
 
Coord arcsec 2000 100825.89-194430.0 Mag 11.38 PmRA 1.00 PmDE 3.0
Calc delta mag 4.03 Calc coord yes
CCDM
Ccdm 10084-1945 RComp Comp C Note1
Note2 Discov num BU 911 DRAs 1.92 DDEs 24.8
R dRAs 66 Year 1959 Theta 062 Rho 66.4
Obs 11 Vmag 9.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 7655 M ADS BDS N IDS IDS 10036S1915C
HIC