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Doubles in session


Current system
09245+0621
STF 1348 AB
HD 81212


Nearby doubles
34' : 09266+0632
BU 589

42' : 09268+0558
A 2755

43' : 09273+0614
STF1355

50' : 09261+0704
GWP1173

54' : 09251+0528
LEP 35

66' : 09203+0559
LNV 1

68' : 09228+0519
HJ 133

70' : 09199+0633
GTZ 1

71' : 09226+0725
A 2977

77' : 09195+0607
HJ 129

93' : 09270+0456
GWP1178

93' : 09301+0543
CBL 282

100' : 09204+0502
SLW 350

105' : 09250+0436
GWP1168

106' : 09200+0500
STF1343

109' : 09205+0752
BRT2148

121' : 09197+0444
LDS3876

123' : 09207+0810
A 2976AB

123' : 09171+0717
STTA 98AB

124' : 09162+0610
SLW 339

125' : 09262+0823
CHE 136

126' : 09285+0811
H 4 47

128' : 09209+0816
DAM1601

128' : 09279+0818
A 2978

133' : 09163+0530
SLW 340

133' : 09297+0433
HJ 137



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.

09245+0621 STF 1348 AB (HD 81212)

 
 
09h 24m 28.48s +06° 21' 01.8" P.A. 314.00 sep 2.0 mag 7.45,7.57 Sp F7V dist. 71.17 pc (232.16 l.y.)
 
 
Coord 2000 09245+0621 Discov num STF1348 Comp AB Coord arcsec 2000 09 24 28.48 +06 21 01.8
Date first 1831 Date last 2018 Obs 240
Pa first 334 Pa last 314 P.A. Now (θ) 314°
Sep first 1.1 Sep last 1.956 Sep. Now (ρ) 1.956"
Mag pri 7.45 Mag sec 7.57 delta mag (ΔM) 0.12 Spectral class F7V (yellow-white)
Pri motion ra -173 Sec motion ra -172
Pri motion dec -033 Sec motion dec -034
Notes O (Orbital solution)
rPM=0.008 (< 0.3, Physical double)
This double is physical.
 
 
09245+0621 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 81212 117661 09 24 28 +06 21 02 STF 1348 AB 2018 240 314 2.0 7.45 7.57 0.12 Y <===
Show 117661 09 24 28 +06 21 02 LDS 3888 AC 2015 5 325 123.1 7.45 14.41 6.96
Show 09 24 24 +06 22 42 NSN 594 CD 2016 3 22 1.8 14.64 15.63 0.99
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 81212 Constellation Hydra SAO 117661 HIP 46134
Tycho2 0234-01664-1 Gaia DR2 585739741384499072 HD 81212 GC 12975
BD BD+06 2169 Distance 71.17 Distance ly 232.16
 
 
ORBITAL ELEMENTS SOLUTION #1
 
 
Period (P)4734.231y Periastron (T)1800.232y Semi-major axis (a)6.261a
Eccentricity (e)0.82 Inclination (i)100.01° Longitude of periastron (ω)117.49°
Node (Ω)148.32° Notes ReferenceGrv2021c
Equinox Last observation Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 315.6 1.960
2001 315.5 1.960
2002 315.5 1.959
2003 315.4 1.959
2004 315.3 1.958
2005 315.2 1.958
2006 315.2 1.957
2007 315.1 1.957
2008 315.0 1.956
2009 314.9 1.956
2010 314.8 1.955
2011 314.8 1.955
2012 314.7 1.954
2013 314.6 1.953
2014 314.5 1.953
2015 314.5 1.952
2016 314.4 1.951
2017 314.3 1.951
2018 314.2 1.950
2019 314.1 1.949
2020 314.1 1.948
2021 314.0 1.947
2022 313.9 1.947
2023 313.8 1.946
2024 313.8 1.945
2025 313.7 1.944
2026 313.6 1.943
2027 313.5 1.942
2028 313.4 1.941
2029 313.4 1.940
2030 313.3 1.939


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.


 
  


wds09245%2B0621a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
ORBITAL ELEMENTS SOLUTION #2
 
 
Period (P)8612.811y Periastron (T)1839.796y Semi-major axis (a)9.331a
Eccentricity (e)0.834 Inclination (i)98.61° Longitude of periastron (ω)317.36°
Node (Ω)35.97° Notes ReferenceGrv2021c
Equinox Last observation Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 27.5 1.965
2001 27.5 1.964
2002 27.4 1.962
2003 27.3 1.961
2004 27.2 1.959
2005 27.1 1.958
2006 27.1 1.956
2007 27.0 1.955
2008 26.9 1.953
2009 26.8 1.952
2010 26.8 1.950
2011 26.7 1.948
2012 26.6 1.946
2013 26.5 1.945
2014 26.4 1.943
2015 26.4 1.941
2016 26.3 1.939
2017 26.2 1.937
2018 26.1 1.935
2019 26.0 1.933
2020 26.0 1.931
2021 25.9 1.929
2022 25.8 1.927
2023 25.7 1.925
2024 25.6 1.923
2025 25.5 1.921
2026 25.5 1.919
2027 25.4 1.917
2028 25.3 1.915
2029 25.2 1.912
2030 25.1 1.910


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.


 
  


wds09245%2B0621b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
ORBITAL ELEMENTS SOLUTION #3
 
 
Period (P)568.4y Periastron (T)1800y Semi-major axis (a)1.836a
Eccentricity (e)0.888 Inclination (i)106.86° Longitude of periastron (ω)63.73°
Node (Ω)159.21° Notes ReferenceGrv2021c
Equinox Last observation Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 315.5 1.964
2001 315.4 1.964
2002 315.3 1.963
2003 315.3 1.962
2004 315.2 1.961
2005 315.1 1.960
2006 315.0 1.959
2007 315.0 1.958
2008 314.9 1.957
2009 314.8 1.956
2010 314.7 1.955
2011 314.7 1.954
2012 314.6 1.953
2013 314.5 1.952
2014 314.5 1.950
2015 314.4 1.949
2016 314.3 1.948
2017 314.2 1.946
2018 314.2 1.945
2019 314.1 1.944
2020 314.0 1.942
2021 313.9 1.941
2022 313.8 1.939
2023 313.8 1.938
2024 313.7 1.936
2025 313.6 1.934
2026 313.5 1.933
2027 313.5 1.931
2028 313.4 1.929
2029 313.3 1.927
2030 313.2 1.926


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.


 
  


wds09245%2B0621c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 09245+0621 STF 1348 AB (HD 81212) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Grv2021c Hg+ - Greaves, J., Rica Romero, F.M. & Otero, S. 2021JDSO...17..137G
Grv2021c +orb JDSO 17, 137, 2021
 
 
DISCOVERER
 
 
idgroup discov author
1 LDS Luyten p.m. catalog (from additional DD list)
1 NSN Nanson, J., McGaughey, S. & Armstrong, J.D.
25 STF Struve, F.G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
09245+0621 STF1348 AB 2005 239 315 2.0 7.45 7.57 F7V D 092428.57+062100.3
09245+0621 STF1348 AB 2007 241 313 1.9 7.45 7.57 F7V D 092428.57+062100.3
09245+0621 STF1348 AB 2008 242 315 1.9 7.45 7.57 F7V D 092428.57+062100.3
09245+0621 STF1348 AB 2009 244 314 1.9 7.45 7.57 F7V D 092428.57+062100.3
09245+0621 STF1348 AB 2012 245 316 2.1 7.45 7.57 F7V D 092428.57+062100.3
09245+0621 STF1348 AB 2016 234 314 2.0 7.45 7.57 F7V 092428.48+062101.8
09245+0621 STF1348 AB 2017 236 313 1.9 7.45 7.57 F7V 092428.48+062101.8
09245+0621 STF1348 AB 2018 238 314 2.0 7.45 7.57 F7V 092428.48+062101.8

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

 
 
WDS 09245+0621 STF 1348 AB (HD 81212) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 09245+0621 STF 1348 AB (HD 81212) : MEASURES
 
 
No records found.

 
 
WDS 09245+0621 (HD 81212) : VIRTUAL EYEPIECE
 
 

09245+0621 STF1348A mag 7.45 Sp F7V 09245+0621 STF1348B sep 1.9 P.A. 314.20 mag 7.57 09245+0621 NSN 594C sep 121.3 P.A. 325.30 mag 14.64 Sp M4V 09245+0621 NSN 594D sep 122.2 P.A. 326.00 mag 15.63 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 09245+0621 (HD 81212) : ALADIN DSS IMAGE @ 09h 24m 28.48s +06° 21' 01.8"
 
 
 
 
WDS 09245+0621 STF 1348 AB (HD 81212) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

09245+0621 STF1348AB distance=0' 09245+0621 NSN 594CD distance=3' 09266+0632 BU 589 distance=34' 09268+0558 A 2755 distance=42' 09273+0614 STF1355 distance=43' 09261+0704 GWP1173 distance=50' 09251+0528 LEP 35 distance=54' 09203+0559 LNV 1 distance=66' 09228+0519 HJ 133 distance=68' 09199+0633 GTZ 1 distance=70' 09226+0725 A 2977 distance=71' 09195+0607 HJ 129 distance=77' 09270+0456 GWP1178 distance=93' 09301+0543 CBL 282 distance=93' 09204+0502 SLW 350 distance=100' 09250+0436 GWP1168 distance=105' 09200+0500 STF1343 distance=106' 09205+0752 BRT2148 distance=109' 09197+0444 LDS3876 distance=121' 09171+0717 STTA 98BC distance=122' 09207+0810 A 2976BC distance=123' 09207+0810 A 2976AB distance=123' 09171+0717 STTA 98AB distance=123' 09162+0610 SLW 339 distance=124' 09262+0823 CHE 136 distance=125' 09285+0811 H 4 47 distance=126' 09209+0816 DAM1601 distance=128' 09279+0818 A 2978 distance=128' 09163+0530 SLW 340 distance=133' 09297+0433 HJ 137 distance=133' 09157+0650 DAM1580 distance=134' 09157+0654 TDS6430 distance=135' 09158+0657 DAM1581 distance=135' 09164+0521 SKF1717 distance=135' 09153+0602 A 2754 distance=139' 09261+0842 CHE 135 distance=144' 09256+0358 BAL2835 distance=144' 09153+0531 HJ 124AB distance=146' 09153+0531 HJ 124AC distance=146' 09153+0531 SKF1841AD distance=146' 09204+0409 BAL2834 distance=146' 09204+0834 GTZ 7 distance=147' 09273+0400 UC 1791 distance=147' 09225+0843 HJ 5477 distance=148' 09303+0417 BAL2836 distance=152' 09198+0844 GWP1161 distance=159' 09345+0716 GWP1197 distance=159' 09168+0814 HJ 808AB distance=161' 09168+0814 BRT2147AC distance=161' 09168+0814 OCC9033Aa,Ab distance=161' 09202+0352 BAL2833 distance=163' 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 09245+0621 STF1348 AB 314 2.0
Show 09245+0621 LDS3888 AC 325 123.1
Show 09245+0621 NSN 594 CD 22 1.8 3
Show 09266+0632 BU 589 219 3.1 34
Show 09268+0558 A 2755 122 2.1 42
Show 09273+0614 STF1355 356 1.7 43
Show 09261+0704 GWP1173 252 541.5 50
Show 09251+0528 LEP 35 68 13.4 54
Show 09203+0559 LNV 1 232 14.9 66
Show 09228+0519 HJ 133 316 16.8 68
Show 09199+0633 GTZ 1 84 16.1 70
Show 09226+0725 A 2977 267 1.6 71
Show 09195+0607 HJ 129 244 10.0 77
Show 09270+0456 GWP1178 94 8.5 93
Show 09301+0543 CBL 282 204 11.1 93
Show 09204+0502 SLW 350 27 10.7 100
Show 09250+0436 GWP1168 235 12.7 105
Show 09200+0500 STF1343 275 9.1 106
Show 09205+0752 BRT2148 37 3.3 109
Show 09197+0444 LDS3876 114 12.6 121
Show 09171+0717 STTA 98 BC 89 147.5 122
Show 09207+0810 A 2976 BC 137 1.0 123
Show 09207+0810 A 2976 AB 237 28.6 123
Show 09171+0717 STTA 98 AB 170 107.2 123
Show 09162+0610 SLW 339 9 106.3 124
Show 09262+0823 CHE 136 143 20.8 125
Show 09285+0811 H 4 47 80 25.2 126
Show 09209+0816 DAM1601 317 13.8 128
Show 09279+0818 A 2978 102 1.3 128
Show 09163+0530 SLW 340 82 81.2 133
Show 09297+0433 HJ 137 353 18.5 133
Show 09157+0650 DAM1580 225 4.0 134
Show 09157+0654 TDS6430 239 0.8 135
Show 09158+0657 DAM1581 171 1.5 135
Show 09164+0521 SKF1717 214 1.3 135
Show 09153+0602 A 2754 343 1.1 139
Show 09261+0842 CHE 135 116 2.7 144
Show 09256+0358 BAL2835 92 8.8 144
Show 09153+0531 HJ 124 AB 71 15.4 146
Show 09153+0531 HJ 124 AC 242 62.1 146
Show 09153+0531 SKF1841 AD 274 17.6 146
Show 09204+0409 BAL2834 4 19.1 146
Show 09204+0834 GTZ 7 238 15.4 147
Show 09273+0400 UC 1791 206 37.3 147
Show 09225+0843 HJ 5477 327 30.5 148
Show 09303+0417 BAL2836 50 5.9 152
Show 09198+0844 GWP1161 332 10.1 159
Show 09345+0716 GWP1197 104 30.7 159
Show 09168+0814 HJ 808 AB 204 24.3 161
Show 09168+0814 BRT2147 AC 200 5.4 161
Show 09168+0814 OCC9033 Aa,Ab 125 0.0 161

 
 
WDS 09245+0621 : COMPONENTS
 
 
  A B C
B pa=314.2°
sep=1.95"
 
C pa=325.3°
sep=121.26"
pa=325.5°
sep=119.35"
 
D pa=326.0°
sep=122.24"
pa=326.2°
sep=120.33"
pa=22.3°
sep=1.78"
 
 
09245+0621 A
 
 
Name HD 81212 Coord arcsec 2000 092428.48+062101.8 Mag 7.45 Spectral class F7V (yellow-white)
PmRA -173.00 PmDE -33.0 SAO 117661 HIP 46134
Tycho2 0234-01664-1 HD 81212 GC 12975 BD BD+06 2169
Tycho2
Tycho2 0234-01664-1 Pflag P RAmdeg 141.11888020 DEmdeg 6.35029561
PmRA -171.6 PmDE -33.6 E RAmdeg 7 E DEmdeg 8
E pmRA 2.2 E pmDE 2.1 EpRAm 1991.54 EpDEm 1991.40
Num 4 Q RAmdeg 0.7 Q DEmdeg 1.5 Q pmRA 0.8
Q pmDE 1.4 BTmag 8.070 E BTmag 0.018 VTmag 7.500
E VTmag 0.013 Prox 20 TYC T HIP 46134
CCDM A RAdeg 141.11945750 DEdeg 6.35018833 EpRA 1990 1.65
EpDE 1990 1.56 E RAdeg 6.4 E DEdeg 7.5 Posflg D
Corr 0.1
SAO
SAO 117661 DelFlag RA1950 PmRA1950 -0.0118
DE1950 PmDE1950 -0.044 Vmag 6.8 SpType F5
Double code Source 70 CatNum 12975 DM BD+06 2169
DMcomp BDsup HD 81212 M HD 0
GC 12975 RA1950rad 2.45150068 DE1950rad 0.11460268 PmRA2000 -0.0117
PmDE2000 -0.04
Hipparcos
Catalog H HIP 46134 Proxy H RAhms 09 24 28.67
DEdms +06 21 00.7 Vmag 6.73 VarFlag R Vmag G
RAdeg 141.119 DEdeg 6.35019 AstroRef A Plx 19.63
CCDM 09245+0621 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual B M HIP AB
Theta 316 Rho 1.98 HD 81212 BD BD+06 2169
CD CP Dm number +06 2169 VIred 0.02
SpType F5 R SpType Coord arcsec 2000 092428.67+062100.7
Hipparcos 2
HIP 46134 Sn 15 So 3 Nc 2
RArad 2.4629995353 DErad 0.1108317641 Plx 14.05 PmRA -169.34
PmDE -35.29 E RArad 1.29 E DErad 1.11 E Plx 1.27
E pmRA 1.35 E pmDE 1.01 Hpmag 6.8618 E Hpmag 0.003
SHp 0.015 VA 0 BV 0.513 E BV 0.001
VI 0.59
CCDM
Ccdm 09245+0621 RComp Comp A Note1
Note2 Discov num DRAs -1.48 DDEs 1.3
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.5 Sp F5 PmNote *
PmRA -166 PmDE -30 Dm number +06 2169 Cat1 BD
Name2 +06 1216 Cat2 AGK2/3 HD 81212 M HD
ADS BDS A 7352 M ADS BDS N IDS IDS 09192N0647A
HIC 46134
 
 
09245+0621 B
 
 
Coord arcsec 2000 092428.39+062103.2 Mag 7.57 PmRA -172.00 PmDE -34.0
HIP 46134 Tycho2 0234-01664-2 Calc delta mag 0.12 Calc coord yes
Tycho2
Tycho2 0234-01664-2 Pflag P RAmdeg 141.11888020 DEmdeg 6.35029561
PmRA -171.6 PmDE -33.6 E RAmdeg 7 E DEmdeg 8
E pmRA 2.2 E pmDE 2.1 EpRAm 1991.54 EpDEm 1991.40
Num 4 Q RAmdeg 0.7 Q DEmdeg 1.5 Q pmRA 0.8
Q pmDE 1.4 BTmag 8.142 E BTmag 0.019 VTmag 7.574
E VTmag 0.013 Prox 20 TYC T HIP 46134
CCDM B RAdeg 141.11907750 DEdeg 6.35058417 EpRA 1990 1.68
EpDE 1990 1.60 E RAdeg 6.5 E DEdeg 7.6 Posflg D
Corr 0.1
Hipparcos
Catalog H HIP 46134 Proxy H RAhms 09 24 28.67
DEdms +06 21 00.7 Vmag 6.73 VarFlag R Vmag G
RAdeg 141.119 DEdeg 6.35019 AstroRef A Plx 19.63
CCDM 09245+0621 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual B M HIP AB
Theta 316 Rho 1.98 HD 81212 BD BD+06 2169
CD CP Dm number +06 2169 VIred 0.02
SpType F5 R SpType Coord arcsec 2000 092428.67+062100.7
Hipparcos 2
HIP 46134 Sn 15 So 3 Nc 2
RArad 2.4629995353 DErad 0.1108317641 Plx 14.05 PmRA -169.34
PmDE -35.29 E RArad 1.29 E DErad 1.11 E Plx 1.27
E pmRA 1.35 E pmDE 1.01 Hpmag 6.8618 E Hpmag 0.003
SHp 0.015 VA 0 BV 0.513 E BV 0.001
VI 0.59
CCDM
Ccdm 09245+0621 RComp Comp B Note1
Note2 Discov num STF1348 DRAs DDEs
R dRAs Year 1959 Theta 317 Rho 2.0
Obs 99 Vmag 7.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 7352 M ADS BDS N IDS IDS 09192N0647B
HIC 46134
 
 
09245+0621 C
 
 
Coord arcsec 2000 092423.85+062241.5 Coord calc 092423.85+062241.5 Mag 14.64 Spectral class M4V (red)
PmRA -173.00 PmDE -33.0 Calc delta mag 7.19
 
 
09245+0621 D
 
 
Coord arcsec 2000 092423.90+062243.2 Mag 15.63 PmRA -164.00 PmDE -35.0
Calc delta mag 8.18 Calc coord yes