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Doubles in session


Current system
06551-0830
RST 4325 AB
HD 50981


Nearby doubles
17' : 06558-0816
KPP1328

30' : 06567-0848
A 2936

36' : 06572-0846
TDS 304

40' : 06567-0901
XMI 31

51' : 06580-0802
TDS4331

52' : 06585-0818
RST4326

56' : 06532-0742
J 742

57' : 06582-0903
BRT 387

60' : 06556-0929
STF 992

63' : 06593-0822
TDS 310

65' : 06546-0934
TDS4278

66' : 06586-0910
STF1003

66' : 06587-0911
J 2768AB

67' : 06591-0800
TDS4351

68' : 06596-0823
A 1062

71' : 06598-0841
J 1483

77' : 06594-0748
RST4327

79' : 07004-0824
RST4329

84' : 07006-0852
A 1063AB

86' : 06494-0840
A 1058AB

87' : 07000-0917
TDS 315

87' : 06519-0717
SKF 778

88' : 06537-0704
J 1480

89' : 07008-0857
POM 1AB

90' : 07002-0917
AG 328

92' : 06513-0718
TDS4215



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.

06551-0830 RST 4325 AB (HD 50981)

 
 
06h 55m 07.29s -08° 29' 56.3" P.A. 250.00 sep 0.6 mag 7.90,10.53 Sp B9V dist. 284.09 pc (926.7 l.y.)
 
 
Coord 2000 06551-0830 Discov num RST4325 Comp AB Coord arcsec 2000 06 55 07.29 -08 29 56.3
Date first 1940 Date last 2004 Obs 4
Pa first 248 Pa last 250.2 P.A. Now (θ) 250.2°
Sep first 0.6 Sep last 0.61 Sep. Now (ρ) 0.61"
Mag pri 7.90 Mag sec 10.53 delta mag (ΔM) 2.63 Spectral class B9V (blue-white)
Pri motion ra -011 Sec motion ra
Pri motion dec +001 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
06551-0830 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 50981 133896 06 55 07 -08 29 56 RST 4325 AB 2004 4 250 0.6 7.90 10.53 2.63 <===
Show 133896 06 55 07 -08 29 56 RST 4325 AC 2015 9 236 8.2 7.90 10.40 2.50
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 50981 Constellation Monoceros SAO 133896 HIP 33255
Tycho2 5380-02600-1 Gaia DR2 3050946614468828416 HD 50981 BD BD-08 1617
Distance 284.09 Distance ly 926.7
 
 
WDS 06551-0830 RST 4325 AB (HD 50981) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Rst1933 T - Rossiter, R.A. 1933MmRAS..65...27R
Rst1933 MemRAS 65, 27, 1933
Rst1937 Ma - Rossiter, R.A. 1937MmRAS..65...51R
Rst1937 MemRAS 65, 51, 1937
Rst1943 Ma - Rossiter, R.A. 1943POMic...8..133R
Rst1943 Pub. Univ. Michigan Obs. 8, 133, 1943
Rst1944 - Rossiter, R.A. 1944POMic...9....1R
Rst1944 Pub. Univ. Michigan Obs. 9, 1, 1944
Rst1947 Ma - Rossiter, R.A. 1947POMic...9....7R
Rst1947 Pub. Univ. Michigan Obs. 9, 7, 1947
Rst1955 Ma j Rossiter, R.A. 1955POMic..11....1R
Rst1955 +P+ Pub. Univ. Michigan Obs. 11, 1, 1955
Rst1964 Ma - Rossiter, R.A. 1964POMic...9...73R
Rst1964 Pub. Univ. Michigan Obs. 9, 73, 1964
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
06551-0830 RST4325 AB 1991 3 251 0.7 7.90 10.53 B9V D 065507.29-082956.3
06551-0830 RST4325 AB 2004 4 250 0.6 7.90 10.53 B9V 065507.29-082956.3

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

 
 
WDS 06551-0830 RST 4325 AB (HD 50981) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 06551-0830 RST 4325 AB (HD 50981) : MEASURES
 
 
No records found.

 
 
WDS 06551-0830 (HD 50981) : VIRTUAL EYEPIECE
 
 

06551-0830 RST4325A mag 7.9 Sp B9V 06551-0830 RST4325B sep 0.6 P.A. 250.00 mag 10.53 06551-0830 RST4325C sep 8.1 P.A. 235.20 mag 10.4 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 06551-0830 (HD 50981) : ALADIN DSS IMAGE @ 06h 55m 07.29s -08° 29' 56.3"
 
 
 
 
WDS 06551-0830 RST 4325 AB (HD 50981) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

06551-0830 RST4325AB distance=0' 06558-0816 KPP1328 distance=17' 06567-0848 A 2936 distance=30' 06572-0846 TDS 304 distance=36' 06567-0901 XMI 31 distance=40' 06580-0802 TDS4331 distance=51' 06585-0818 RST4326 distance=52' 06532-0742 J 742 distance=56' 06582-0903 BRT 387 distance=57' 06556-0929 STF 992 distance=60' 06593-0822 TDS 310 distance=63' 06546-0934 TDS4278 distance=65' 06586-0910 STF1003 distance=66' 06587-0911 J 2768AB distance=66' 06587-0911 DAM 48BC distance=66' 06591-0800 TDS4351 distance=67' 06596-0823 A 1062 distance=68' 06598-0841 J 1483 distance=71' 06594-0748 RST4327 distance=77' 07004-0824 RST4329 distance=79' 07006-0852 A 1063AB distance=84' 07006-0852 A 1063AC distance=84' 07006-0852 A 1063AD distance=84' 06494-0840 A 1058Aa,Ab distance=86' 06494-0840 A 1058AB distance=86' 06494-0840 A 1058AC distance=86' 07000-0917 TDS 315 distance=87' 06519-0717 SKF 778 distance=87' 06537-0704 J 1480 distance=88' 07008-0857 POM 1AB distance=89' 07008-0857 POM 1AC distance=89' 07008-0857 POM 1AD distance=89' 07008-0857 POM 1AE distance=89' 07002-0917 AG 328 distance=90' 06513-0718 TDS4215 distance=92' 06536-0957 J 1482 distance=92' 06581-0952 GWP 855 distance=94' 06540-1002 STF 988 distance=94' 06579-0955 TOI 898 distance=96' 06485-0833 A 1057AB distance=98' 06485-0833 A 1057AC distance=98' 06587-0952 GWP 857 distance=98' 07013-0906 A 671 distance=99' 06554-0650 HJ 743 distance=100' 06573-1005 A 514 distance=101' 06555-0648 DOO 40 distance=102' 06556-1013 GAL 275 distance=104' 07022-0817 TDS4403 distance=106' 06516-0658 BNS 3 distance=107' 06557-1017 GAL 277 distance=107' 06564-1016 RST3475A,BC distance=108' 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 06551-0830 RST4325 AB 250 0.6
Show 06551-0830 RST4325 AC 236 8.2
Show 06558-0816 KPP1328 28 10.1 17
Show 06567-0848 A 2936 66 0.5 30
Show 06572-0846 TDS 304 213 1.3 36
Show 06567-0901 XMI 31 309 22.2 40
Show 06580-0802 TDS4331 53 1.3 51
Show 06585-0818 RST4326 9 0.3 52
Show 06532-0742 J 742 224 1.3 56
Show 06582-0903 BRT 387 347 4.8 57
Show 06556-0929 STF 992 300 13.9 60
Show 06593-0822 TDS 310 66 1.3 63
Show 06546-0934 TDS4278 130 0.6 65
Show 06586-0910 STF1003 321 3.9 66
Show 06587-0911 J 2768 AB 54 5.9 66
Show 06587-0911 DAM 48 BC 38 12.0 66
Show 06591-0800 TDS4351 42 0.8 67
Show 06596-0823 A 1062 140 0.7 68
Show 06598-0841 J 1483 330 4.0 71
Show 06594-0748 RST4327 287 0.4 77
Show 07004-0824 RST4329 9 1.2 79
Show 07006-0852 A 1063 AB 229 3.1 84
Show 07006-0852 A 1063 AC 255 7.0 84
Show 07006-0852 A 1063 AD 4 9.1 84
Show 06494-0840 A 1058 Aa,Ab 35 0.4 86
Show 06494-0840 A 1058 AB 225 16.7 86
Show 06494-0840 A 1058 AC 7 47.4 86
Show 07000-0917 TDS 315 354 1.2 87
Show 06519-0717 SKF 778 109 29.3 87
Show 06537-0704 J 1480 279 8.8 88
Show 07008-0857 POM 1 AB 75 0.6 89
Show 07008-0857 POM 1 AC 254 0.7 89
Show 07008-0857 POM 1 AD 60 1.1 89
Show 07008-0857 POM 1 AE 254 1.2 89
Show 07002-0917 AG 328 183 6.5 90
Show 06513-0718 TDS4215 320 0.7 92
Show 06536-0957 J 1482 351 8.3 92
Show 06581-0952 GWP 855 336 9.6 94
Show 06540-1002 STF 988 265 33.2 94
Show 06579-0955 TOI 898 37 1.3 96
Show 06485-0833 A 1057 AB 93 1.3 98
Show 06485-0833 A 1057 AC 335 19.5 98
Show 06587-0952 GWP 857 190 8.7 98
Show 07013-0906 A 671 186 0.4 99
Show 06554-0650 HJ 743 245 11.1 100
Show 06573-1005 A 514 103 1.5 101
Show 06555-0648 DOO 40 311 5.2 102
Show 06556-1013 GAL 275 264 7.0 104
Show 07022-0817 TDS4403 102 2.6 106
Show 06516-0658 BNS 3 -1 -1.0 107
Show 06557-1017 GAL 277 147 6.1 107

 
 
WDS 06551-0830 : COMPONENTS
 
 
  A B
B pa=250.0°
sep=0.60"
 
C pa=235.2°
sep=8.12"
pa=234.0°
sep=7.54"
 
 
06551-0830 A
 
 
Name HD 50981 Coord arcsec 2000 065507.29-082956.3 Mag 7.9 Spectral class B9V (blue-white)
PmRA -11.00 PmDE 1.0 SAO 133896 HIP 33255
Tycho2 5380-02600-1 HD 50981 BD BD-08 1617
Tycho2
Tycho2 5380-02600-1 Pflag RAmdeg 103.78038048 DEmdeg -8.49897792
PmRA 1.9 PmDE 0.5 E RAmdeg 5 E DEmdeg 6
E pmRA 1.6 E pmDE 1.6 EpRAm 1991.43 EpDEm 1991.20
Num 6 Q RAmdeg 3.0 Q DEmdeg 1.2 Q pmRA 2.9
Q pmDE 1.2 BTmag 7.845 E BTmag 0.015 VTmag 7.831
E VTmag 0.012 Prox 999 TYC T HIP 33255
CCDM AB RAdeg 103.78037611 DEdeg -8.49897889 EpRA 1990 1.80
EpDE 1990 1.72 E RAdeg 5.0 E DEdeg 6.1 Posflg P
Corr -0.2
SAO
SAO 133896 DelFlag RA1950 PmRA1950 -0.0022
DE1950 PmDE1950 -0.017 Vmag 7.9 SpType B9
Double code Source 26 CatNum 2258 DM BD-08 1617
DMcomp BDsup HD 50981 M HD 0
GC RA1950rad 1.80082999 DE1950rad -0.14720513 PmRA2000 -0.0018
PmDE2000 -0.014
Hipparcos
Catalog H HIP 33255 Proxy H RAhms 06 55 07.29
DEdms -08 29 56.3 Vmag 7.8 VarFlag R Vmag H
RAdeg 103.78 DEdeg -8.49898 AstroRef A Plx 3.59
CCDM 06551-0830 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 251 Rho 0.671 HD 50981 BD BD-08 1617
CD CP Dm number -08 1617 VIred 0.05
SpType B9V R SpType Coord arcsec 2000 065507.29-082956.3
Hipparcos 2
HIP 33255 Sn 15 So 3 Nc 2
RArad 1.8113094184 DErad -0.1483351026 Plx 3.52 PmRA -0.82
PmDE -1.21 E RArad 0.91 E DErad 0.68 E Plx 1.12
E pmRA 1.16 E pmDE 0.87 Hpmag 7.806 E Hpmag 0.002
SHp 0.014 VA 0 BV 0.006 E BV 0.014
VI 0.03
CCDM
Ccdm 06551-0830 RComp Comp A Note1
Note2 Discov num DRAs 1.17 DDEs 2.4
R dRAs 10 Year Theta Rho
Obs 3 Vmag 8.2 Sp B9 PmNote *
PmRA -33 PmDE -17 Dm number -08 1617 Cat1 BD
Name2 133896 Cat2 SAO HD 50981 M HD
ADS BDS M ADS BDS N IDS IDS 06503S0822A
HIC 33255
 
 
06551-0830 B
 
 
Coord arcsec 2000 065507.25-082956.5 Mag 10.53 Calc delta mag 2.63 Calc coord yes
CCDM
Ccdm 06551-0830 RComp Comp B Note1
Note2 Discov num RST4325 DRAs DDEs
R dRAs Year 1939 Theta 256 Rho 0.6
Obs 3 Vmag 10.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 06503S0822B
HIC 33255
 
 
06551-0830 C
 
 
Coord arcsec 2000 065506.84-083000.9 Mag 10.4 Calc delta mag 2.5 Calc coord yes
CCDM
Ccdm 06551-0830 RComp Comp C Note1
Note2 Discov num RST4325 DRAs DDEs
R dRAs Year 1939 Theta 234 Rho 7.5
Obs 2 Vmag 10.7 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 06503S0822C
HIC 33255