01262-6751 DON 17 (HD 8944)

 
 
01h 26m 09.45s -67° 50' 33.0" P.A. 291.00 sep 1.4 mag 8.81,9.81 Sp K0IV dist. 63.09 pc (205.8 l.y.)
 
 
Coord 2000 01262-6751 Discov num DON  17 Comp Coord arcsec 2000 01 26 09.45 -67 50 33.0
Date first 1928 Date last 2021 Obs 46
Pa first 357 Pa last 291.4 P.A. Now (θ) 291.4°
Sep first 0.7 Sep last 1.431 Sep. Now (ρ) 1.431"
Mag pri 8.81 Mag sec 9.81 delta mag (ΔM) 1 Spectral class K0IV (yellow-orange)
Pri motion ra +117 Sec motion ra +117
Pri motion dec -062 Sec motion dec -062
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 8944 Constellation Hydrus SAO 248383 HIP 6703
Tycho2 9136-00265-1 Gaia DR2 4692424016248469120 HD 8944 CD CD-68 58
CP CP-68 57 Distance 63.09 Distance ly 205.8
 
 
ORBITAL ELEMENTS
 
 
Period (P)374.1934y± 133.5931 Periastron (T)1948.7445y± 1.8322 Semi-major axis (a)1.15202a± 0.14288
Eccentricity (e)0.8491± 0.04483 Inclination (i)47.47°± 10.538 Longitude of periastron (ω)347.654°± 9.806
Node (Ω)134.941°± 6.087 Notes ReferenceIzm2019
Equinox Last observation2015 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 285.0 1.125
2001 285.3 1.140
2002 285.7 1.156
2003 286.0 1.171
2004 286.3 1.186
2005 286.7 1.201
2006 287.0 1.215
2007 287.3 1.230
2008 287.6 1.244
2009 287.9 1.258
2010 288.2 1.272
2011 288.4 1.286
2012 288.7 1.300
2013 289.0 1.313
2014 289.2 1.327
2015 289.5 1.340
2016 289.7 1.353
2017 290.0 1.366
2018 290.2 1.379
2019 290.5 1.392
2020 290.7 1.404
2021 290.9 1.416
2022 291.2 1.429
2023 291.4 1.441
2024 291.6 1.453
2025 291.8 1.464
2026 292.0 1.476
2027 292.2 1.488
2028 292.4 1.499
2029 292.6 1.510
2030 292.8 1.521


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



 
 


wds01262-6751b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
WDS 01262-6751 DON 17 (HD 8944) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Izm2019 orb u Izmailov, I.S. 2019AstL...45...30I
Izm2019 Ast. Lett. 45, 30, 2019
Izm2019 (Orbital elements from weighted solutions used when available (Table 2),
Izm2019 unweighted elements (Table 1) used for remaining 29 systems.)
 
 
DISCOVERER
 
 
idgroup discov author
1 DON Donner, H.F.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
01262-6751 DON 17 1991 16 280 0.9 8.81 9.81 K0IV NOD 012609.45-675033.0
01262-6751 DON 17 2008 17 288 1.3 8.81 9.81 K0IV NOD 012609.45-675033.0
01262-6751 DON 17 2010 18 288 1.3 8.81 9.81 K0IV NOD 012609.45-675033.0
01262-6751 DON 17 2012 20 289 1.3 8.81 9.81 K0IV NO 012609.45-675033.0
01262-6751 DON 17 2014 21 290 1.3 8.81 9.81 K0IV O 012609.45-675033.0
01262-6751 DON 17 2015 24 290 1.4 8.81 9.81 K0IV O 012609.45-675033.0
01262-6751 DON 17 2017 27 290 1.4 8.81 9.81 K0IV O 012609.45-675033.0
01262-6751 DON 17 2018 32 291 1.4 8.81 9.81 K0IV O 012609.45-675033.0
01262-6751 DON 17 2019 38 291 1.4 8.81 9.81 K0IV O 012609.45-675033.0
01262-6751 DON 17 2020 40 291 1.4 8.81 9.81 K0IV O 012609.45-675033.0
01262-6751 DON 17 2021 46 291 1.4 8.81 9.81 K0IV O 012609.45-675033.0

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

 
 
WDS 01262-6751 DON 17 (HD 8944) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 01262-6751 DON 17 (HD 8944) : MEASURES
 
 
No records found.

 
 
WDS 01262-6751 (HD 8944) : VIRTUAL EYEPIECE
 
 

01262-6751 DON  17A mag 8.81 Sp K0IV 01262-6751 DON  17B sep 0.7 P.A. 316.10 mag 9.81 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.

Radius:
Components only
 
 
WDS 01262-6751 (HD 8944) : ALADIN DSS IMAGE @ 01h 26m 09.45s -67° 50' 33.0"
 
 
 
 
WDS 01262-6751 DON 17 (HD 8944) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


01262-6751  DON  17 distance=0' 01271-6738  UC  559 distance=14' 01257-6725  VOU  19 distance=26' 01174-6818  DON  16 distance=57' 01171-6819  DAM 395 distance=59' 01281-6848  KPP2545 distance=59' 01197-6843  NSN 171 distance=64' 01350-6845  UC  588 distance=74' 01158-6853  HJ 3423AB distance=85' 01158-6853  HJ 3423A,CD distance=85' 01158-6853  I    27CD distance=86' 01412-6741  LDS  56 distance=87' 01404-6714  COO   9AB distance=90' 01404-6714  BAU   7AC distance=90' 01409-6714  KPP1592 distance=92' 01349-6909  GLI  12 distance=93' 01104-6727  GKI   3 distance=94' 01171-6624  HJ 3426 distance=102' 01088-6718  DON  15 distance=105' 01072-6834  HDS 147 distance=114' 01220-6943  I   263 distance=115' 01329-6601  UC  579 distance=117' 01368-6932  VOU  17 distance=118' 01431-6641  CVR1732 distance=121' 01084-6636  KPP1808 distance=128' 01422-6621  UC  606 distance=130' 01106-6555  HDS 154Aa,Ab distance=148' 01106-6555  UC  511AB distance=148' 01407-6959  KPP 582 distance=151' 01355-6522  DON  19 distance=159' 01448-6533  UC  620 distance=177' 01124-7031  NSN 170 distance=177' 01216-6453  TOI2387 distance=181' 01460-6523  TDS1995 distance=189' 01134-7057  LDS  39 distance=198' 01258-7114  B  1426 distance=204' 01377-6427  NSN 177CB distance=216' 01377-6427  NSN 177AB distance=216' 01377-6427  NSN 177AC distance=216' 01364-6421  KPP2802 distance=219' 01194-7129  OGL 176 distance=222' 01088-7119  OGL 152 distance=228' 01182-7136  OGL 174 distance=230' 01072-7121  OGL 149 distance=233' 01092-7127  OGL 154 distance=234' 01207-7145  OGL 182 distance=237' 01167-7142  OGL 169 distance=237' 01177-7150  OGL 172AB distance=244' 01177-7150  OGL 172AC distance=244' 01198-7157  OGL 181 distance=249' 01178-7158  UC  539 distance=251' grafico limitrofi
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Pass over with the mouse cursor to display the catalog designation.

Show name coord_2000 discov# comp pa sep dist(')
Show 01262-6751 DON 17 291 1.4
Show 01271-6738 UC 559 122 32.4 14
Show 01257-6725 VOU 19 225 6.0 26
Show 01174-6818 DON 16 297 2.5 57
Show 01171-6819 DAM 395 37 4.2 59
Show 01281-6848 KPP2545 187 23.0 59
Show 01197-6843 NSN 171 88 10.3 64
Show 01350-6845 UC 588 163 40.9 74
Show 01158-6853 HJ 3423 AB 315 4.6 85
Show 01158-6853 HJ 3423 A,CD 310 319.2 85
Show 01158-6853 I 27 CD 359 1.0 86
Show 01412-6741 LDS 56 219 33.5 87
Show 01404-6714 COO 9 AB 51 4.5 90
Show 01404-6714 BAU 7 AC 48 45.3 90
Show 01409-6714 KPP1592 335 12.1 92
Show 01349-6909 GLI 12 125 23.8 93
Show 01104-6727 GKI 3 10 0.1 94
Show 01171-6624 HJ 3426 329 2.4 102
Show 01088-6718 DON 15 262 1.3 105
Show 01072-6834 HDS 147 323 26.2 114
Show 01220-6943 I 263 296 0.4 115
Show 01329-6601 UC 579 164 32.6 117
Show 01368-6932 VOU 17 281 14.6 118
Show 01431-6641 CVR1732 97 121.6 121
Show 01084-6636 KPP1808 258 14.0 128
Show 01422-6621 UC 606 297 32.9 130
Show 01106-6555 HDS 154 Aa,Ab 297 0.7 148
Show 01106-6555 UC 511 AB 9 62.1 148
Show 01407-6959 KPP 582 66 5.4 151
Show 01355-6522 DON 19 184 2.7 159
Show 01448-6533 UC 620 322 38.3 177
Show 01124-7031 NSN 170 64 1.4 177
Show 01216-6453 TOI2387 340 0.6 181
Show 01460-6523 TDS1995 97 0.4 189
Show 01134-7057 LDS 39 330 14.9 198
Show 01258-7114 B 1426 28 2.5 204
Show 01377-6427 NSN 177 CB 66 7.0 216
Show 01377-6427 NSN 177 AB 351 1.4 216
Show 01377-6427 NSN 177 AC 253 6.9 216
Show 01364-6421 KPP2802 356 1.9 219
Show 01194-7129 OGL 176 222 1.1 222
Show 01088-7119 OGL 152 196 354.6 228
Show 01182-7136 OGL 174 72 18.8 230
Show 01072-7121 OGL 149 348 1.7 233
Show 01092-7127 OGL 154 278 2.9 234
Show 01207-7145 OGL 182 237 8.9 237
Show 01167-7142 OGL 169 225 7.3 237
Show 01177-7150 OGL 172 AB 244 1.5 244
Show 01177-7150 OGL 172 AC 86 234.1 244
Show 01198-7157 OGL 181 329 50.9 249
Show 01178-7158 UC 539 331 40.2 251

 
 
WDS 01262-6751 : COMPONENTS
 
 
  A
B pa=316.1°
sep=0.72"
 
 
01262-6751 A
 
 
Componente originario normalizzato AB Name HD 8944 Coord arcsec 2000 012609.45-675033.0 Mag 8.81
Spectral class K0IV (yellow-orange) PmRA 117.00 PmDE -62.0 SAO 248383
HIP 6703 Tycho2 9136-00265-1 HD 8944 CD CD-68 58
CP CP-68 57
Tycho2
Tycho2 9136-00265-1 Pflag P RAmdeg 21.53938216 DEmdeg -67.84248676
PmRA 117.0 PmDE -61.9 E RAmdeg 9 E DEmdeg 9
E pmRA 1.9 E pmDE 1.9 EpRAm 1991.33 EpDEm 1991.22
Num 7 Q RAmdeg 1.0 Q DEmdeg 1.3 Q pmRA 0.9
Q pmDE 1.4 BTmag 9.692 E BTmag 0.021 VTmag 8.807
E VTmag 0.014 Prox 9 TYC T HIP 6703
CCDM A RAdeg 21.53877083 DEdeg -67.84234944 EpRA 1990 1.75
EpDE 1990 1.63 E RAdeg 8.7 E DEdeg 8.6 Posflg D
Corr 0.0
SAO
SAO 248383 DelFlag RA1950 PmRA1950 0.0191
DE1950 PmDE1950 -0.063 Vmag 8.3 SpType K0
Double code Source 61 CatNum 286 DM CP-68 57
DMcomp BDsup HD 8944 M HD 0
GC RA1950rad 0.36904448 DE1950rad -1.18858884 PmRA2000 0.0178
PmDE2000 -0.067
Hipparcos
Catalog H HIP 6703 Proxy H RAhms 01 26 09.29
DEdms -67 50 32.4 Vmag 8.39 VarFlag R Vmag H
RAdeg 21.5387 DEdeg -67.8423 AstroRef A Plx 15.15
CCDM 01262-6751 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 281 Rho 0.986 HD 8944 BD
CD CD-68 58 CP CP-68 57 Dm number -68 58 VIred 0.84
SpType K0IV R SpType Coord arcsec 2000 012609.29-675032.4
Hipparcos 2
HIP 6703 Sn 15 So 3 Nc 2
RArad 0.3759215785 DErad -1.1840721971 Plx 15.85 PmRA 117.95
PmDE -69.13 E RArad 0.8 E DErad 0.89 E Plx 1.03
E pmRA 0.99 E pmDE 1.16 Hpmag 8.5377 E Hpmag 0.0017
SHp 0.013 VA 0 BV 0.816 E BV 0.002
VI 0.84
CCDM
Ccdm 01262-6751 RComp Comp A Note1
Note2 Discov num DRAs -2.75 DDEs 26.7
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.8 Sp K0 PmNote *
PmRA 106 PmDE -63 Dm number -68 57 Cat1 CPD
Name2 248383 Cat2 SAO HD 8944 M HD
ADS BDS M ADS BDS N IDS IDS 01230S6821A
HIC 6703
 
 
01262-6751 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 012609.36-675032.5 Mag 9.81 PmRA 117.00
PmDE -62.0 Tycho2 9136-00265-2 Calc delta mag 1 Calc coord yes
Tycho2
Tycho2 9136-00265-2 Pflag P RAmdeg 21.53938216 DEmdeg -67.84248676
PmRA 117.0 PmDE -61.9 E RAmdeg 9 E DEmdeg 9
E pmRA 1.9 E pmDE 1.9 EpRAm 1991.33 EpDEm 1991.22
Num 7 Q RAmdeg 1.0 Q DEmdeg 1.3 Q pmRA 0.9
Q pmDE 1.4 BTmag 11.041 E BTmag 0.048 VTmag 9.814
E VTmag 0.025 Prox 9 TYC HIP 6703
CCDM B RAdeg 21.53808944 DEdeg -67.84230611 EpRA 1990 1.76
EpDE 1990 1.63 E RAdeg 20.2 E DEdeg 19.7 Posflg D
Corr 0.0
CCDM
Ccdm 01262-6751 RComp Comp B Note1 *
Note2 Discov num DON 17 DRAs DDEs
R dRAs Year 1959 Theta 240 Rho 0.3
Obs 4 Vmag 9.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N N IDS IDS 01230S6821B
HIC 6703