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Current system
00021-6817
I 699 AB
HD 224953


Nearby doubles
27' : 00058-6833
HDS 4

65' : 00029-6922
TDS1269

74' : 00102-6719
HJ 3349

79' : 00157-6800
LDS 8

82' : 00160-6754
HJ 3357

97' : 00006-6641
GLI 289

114' : 00215-6744
HJ 3361AB

115' : 00013-7012
GLI 290AB

127' : 00049-7022
TDS1285

129' : 00207-6938
HUB 1

129' : 00171-6958
ALD 19

136' : 00174-6635
DON 2AB

148' : 00164-7024
HEI 198

156' : 00216-6629
RSS 42

157' : 00172-7032
SYU 1

193' : 00161-7115
B 1409

200' : 00085-7134
HLN 18

203' : 00210-6527
TDS1414

204' : 00099-7136
R 2

221' : 00209-6507
RST2241

236' : 00005-7212
B 1902

242' : 00207-7159
B 1907

244' : 00063-6414
I 433

261' : 00023-7238
HJ 5439

270' : 00132-6356
UC 337

281' : 00039-6336
TDS1279



Selections
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Binary Systems
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Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

00021-6817 I 699 AB (HD 224953)

 
 
00h 02m 08.72s -68° 16' 50.6" P.A. 131.00 sep 4.2 mag 9.71,10.56 Sp K5/M0V dist. 15.33 pc (50.01 l.y.)
 
 
Coord 2000 00021-6817 Discov num I   699 Comp AB Coord arcsec 2000 00 02 08.72 -68 16 50.6
Date first 1907 Date last 2015 Obs 15
Pa first 85 Pa last 130.8 P.A. Now (θ) 130.8°
Sep first 1.0 Sep last 4.219 Sep. Now (ρ) 4.219"
Mag pri 9.71 Mag sec 10.56 delta mag (ΔM) 0.85 Spectral class K5/M0V (yellow-orange)
Pri motion ra +208 Sec motion ra +207
Pri motion dec -232 Sec motion dec -232
Notes O (Orbital solution)
rPM=0.003 (< 0.3, Physical double)
This double is physical.
 
 
00021-6817 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 224953 00 02 09 -68 16 51 I 699 AB 2015 15 131 4.2 9.71 10.56 0.85 Y <===
Show 00 02 09 -68 16 51 BAU 2 AC 2000 3 56 46.5 9.71 15.22 5.51
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 224953 Constellation Tucana HIP 169 Tycho2 9134-01714-1
Gaia DR2 4706564427272810624 HD 224953 GL GJ 1294A CD CD-68 2373
CP CP-68 3594 Distance 15.33 Distance ly 50.01
 
 
ORBITAL ELEMENTS
 
 
Period (P)290y Periastron (T)1884.54y Semi-major axis (a)2.738a
Eccentricity (e)0.65 Inclination (i)57.7° Longitude of periastron (ω)207.1°
Node (Ω)117.8° Notes ReferenceZir2013d
Equinox2000 Last observation2000 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 126.9 4.252
2001 127.1 4.255
2002 127.3 4.258
2003 127.5 4.260
2004 127.7 4.262
2005 127.9 4.263
2006 128.1 4.264
2007 128.3 4.264
2008 128.5 4.265
2009 128.8 4.264
2010 129.0 4.263
2011 129.2 4.262
2012 129.4 4.261
2013 129.6 4.259
2014 129.8 4.256
2015 130.0 4.254
2016 130.2 4.250
2017 130.4 4.247
2018 130.6 4.243
2019 130.8 4.239
2020 131.1 4.234
2021 131.3 4.229
2022 131.5 4.223
2023 131.7 4.217
2024 131.9 4.211
2025 132.1 4.204
2026 132.3 4.197
2027 132.5 4.190
2028 132.8 4.182
2029 133.0 4.174
2030 133.2 4.165
2031 133.4 4.156
2032 133.6 4.147
2033 133.9 4.137
2034 134.1 4.127
2035 134.3 4.117
2036 134.5 4.106
2037 134.7 4.095
2038 135.0 4.083
2039 135.2 4.072
2040 135.4 4.059
2041 135.7 4.047
2042 135.9 4.034
2043 136.1 4.020
2044 136.4 4.007
2045 136.6 3.993
2046 136.8 3.978
2047 137.1 3.963
2048 137.3 3.948
2049 137.6 3.933
2050 137.8 3.917


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


 
  


wds00021-6817a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 00021-6817 I 699 AB (HD 224953) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Zir2013d orb - Zirm, H. 2013IAUDS.180....1Z
Zir2013d +lin Inf. Circ. 180, 1, 2013
 
 
DISCOVERER
 
 
idgroup discov author
1 BAU Bauer, C., White, G.L., & Hons, A.
9 I MNRAS 57, 533, 1897 (data also in I__1897b,
9 I I__1897c)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
00021-6817 I 699 AB 2000 12 126 4.4 9.71 10.56 K5/M0V D 000208.72-681650.6
00021-6817 I 699 AB 2015 14 131 4.2 9.71 10.56 K5/M0V O 000208.72-681650.6

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

 
 
WDS 00021-6817 I 699 AB (HD 224953) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 00021-6817 I 699 AB (HD 224953) : MEASURES
 
 
No records found.

 
 
WDS 00021-6817 (HD 224953) : VIRTUAL EYEPIECE
 
 

00021-6817 I 699A mag 9.71 Sp K5/M0V 00021-6817 I 699B sep 3.0 P.A. 156.80 mag 10.56 00021-6817 BAU 2C sep 29.7 P.A. 28.70 mag 15.22 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 00021-6817 (HD 224953) : ALADIN DSS IMAGE @ 00h 02m 08.72s -68° 16' 50.6"
 
 
 
 
WDS 00021-6817 I 699 AB (HD 224953) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

00021-6817 I 699AB distance=0' 00058-6833 HDS 4 distance=27' 00029-6922 TDS1269 distance=65' 00102-6719 HJ 3349 distance=74' 00157-6800 LDS 8 distance=79' 00160-6754 HJ 3357 distance=82' 00006-6641 GLI 289 distance=97' 00215-6744 HJ 3361AB distance=114' 00215-6744 BAU9001AC distance=114' 00013-7012 GLI 290AB distance=115' 00013-7012 BAU 1AC distance=115' 00049-7022 TDS1285 distance=127' 00207-6938 HUB 1 distance=129' 00171-6958 ALD 19 distance=129' 00174-6635 DON 2AB distance=136' 00164-7024 HEI 198 distance=148' 00216-6629 RSS 42 distance=156' 00172-7032 SYU 1 distance=157' 00161-7115 B 1409 distance=193' 00085-7134 HLN 18 distance=200' 00210-6527 TDS1414 distance=203' 00099-7136 R 2 distance=204' 00209-6507 RST2241 distance=221' 00005-7212 B 1902 distance=236' 00207-7159 B 1907 distance=242' 00063-6414 I 433 distance=244' 00035-7221 KPP4406AC distance=245' 00023-7238 HJ 5439 distance=261' 00132-6356 UC 337 distance=270' 00039-6336 TDS1279 distance=281' 00150-7251 BRG 1 distance=282' 00086-6335 UC 325 distance=285' 00097-6335 RST2235 distance=286' 00108-6330 TVB 21 distance=292' 00106-7313 I 43AB distance=300' 00106-7313 I 43AB,C distance=300' 00315-6257 SHY 113GH distance=305' 00315-6257 CVN 33GI distance=305' 00141-6318 UC 340 distance=308' 00221-6317 RST 7 distance=324' 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 00021-6817 I 699 AB 131 4.2 0
Show 00021-6817 BAU 2 AC 56 46.5 0
Show 00058-6833 HDS 4 218 0.2 27
Show 00029-6922 TDS1269 67 0.9 65
Show 00102-6719 HJ 3349 101 14.2 74
Show 00157-6800 LDS 8 289 47.9 79
Show 00160-6754 HJ 3357 337 9.9 82
Show 00006-6641 GLI 289 274 3.0 97
Show 00215-6744 HJ 3361 AB 293 5.1 114
Show 00215-6744 BAU9001 AC 161 34.5 114
Show 00013-7012 GLI 290 AB 118 28.2 115
Show 00013-7012 BAU 1 AC 353 32.6 115
Show 00049-7022 TDS1285 284 0.5 127
Show 00207-6938 HUB 1 216 2.3 129
Show 00171-6958 ALD 19 230 5.0 129
Show 00174-6635 DON 2 AB 18 5.5 136
Show 00164-7024 HEI 198 178 0.1 148
Show 00216-6629 RSS 42 249 29.0 156
Show 00172-7032 SYU 1 90 0.1 157
Show 00161-7115 B 1409 164 0.5 193
Show 00085-7134 HLN 18 323 3.5 200
Show 00210-6527 TDS1414 94 0.8 203
Show 00099-7136 R 2 31 46.5 204
Show 00209-6507 RST2241 320 4.1 221
Show 00005-7212 B 1902 242 2.8 236
Show 00207-7159 B 1907 44 5.3 242
Show 00063-6414 I 433 135 5.7 244
Show 00035-7221 KPP4406 AC 300 3.0 245
Show 00023-7238 HJ 5439 79 9.5 261
Show 00132-6356 UC 337 43 50.8 270
Show 00039-6336 TDS1279 267 0.5 281
Show 00150-7251 BRG 1 52 0.3 282
Show 00086-6335 UC 325 206 77.1 285
Show 00097-6335 RST2235 161 1.5 286
Show 00108-6330 TVB 21 320 2.0 292
Show 00106-7313 I 43 AB 196 0.5 300
Show 00106-7313 I 43 AB,C 334 30.4 300
Show 00315-6257 SHY 113 GH 22 999.9 305
Show 00315-6257 CVN 33 GI 233 10.2 305
Show 00141-6318 UC 340 331 19.4 308
Show 00221-6317 RST 7 183 0.7 324

 
 
WDS 00021-6817 : COMPONENTS
 
 
  A B
B pa=156.8°
sep=3.00"
 
C pa=28.7°
sep=29.68"
pa=24.4°
sep=31.62"
 
 
00021-6817 A
 
 
Name HD 224953 Coord arcsec 2000 000208.72-681650.6 Mag 9.71 Spectral class K5/M0V (yellow-orange)
PmRA 208.00 PmDE -232.0 HIP 169 Tycho2 9134-01714-1
HD 224953 CD CD-68 2373 CP CP-68 3594
Tycho2
Tycho2 9134-01714-1 Pflag RAmdeg 0.53631377 DEmdeg -68.28071652
PmRA 195.2 PmDE -209.9 E RAmdeg 17 E DEmdeg 17
E pmRA 2.4 E pmDE 2.2 EpRAm 1991.22 EpDEm 1991.13
Num 3 Q RAmdeg 0.6 Q DEmdeg 7.8 Q pmRA 0.7
Q pmDE 7.9 BTmag 11.175 E BTmag 0.047 VTmag 9.713
E VTmag 0.022 Prox 42 TYC T HIP 169
CCDM A RAdeg 0.53510500 DEdeg -68.28023389 EpRA 1990 1.75
EpDE 1990 1.72 E RAdeg 16.8 E DEdeg 17.4 Posflg
Corr 0.0
Hipparcos
Catalog H HIP 169 Proxy H RAhms 00 02 08.41
DEdms -68 16 48.7 Vmag 9.24 VarFlag R Vmag H
RAdeg 0.535021 DEdeg -68.2802 AstroRef A Plx 63.03
CCDM 00021-6817 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 125 Rho 4.209 HD 224953 BD
CD CD-68 2373 CP CP-68 3594 Dm number -68 2373 VIred 1.65
SpType M0V R SpType Coord arcsec 2000 000208.41-681648.7
Hipparcos 2
HIP 169 Sn 15 So 3 Nc 2
RArad 0.0093378862 DErad -1.1917144126 Plx 65.24 PmRA 209.95
PmDE -229.66 E RArad 1.75 E DErad 1.33 E Plx 1.76
E pmRA 2.16 E pmDE 1.56 Hpmag 9.3369 E Hpmag 0.0025
SHp 0.025 VA 0 BV 1.39 E BV 0.042
VI 1.65
CCDM
Ccdm 00021-6817 RComp Comp A Note1
Note2 Discov num DRAs 2.57 DDEs 9.4
R dRAs 40 Year Theta Rho
Obs 2 Vmag 9.6 Sp K2 PmNote
PmRA PmDE Dm number -68 3594 Cat1 CPD
Name2 Cat2 HD 224953 M HD
ADS BDS M ADS BDS N IDS IDS 23570S6850A
HIC 169
 
 
00021-6817 B
 
 
Coord arcsec 2000 000208.93-681653.4 Mag 10.56 PmRA 207.00 PmDE -232.0
Calc delta mag 0.85 Calc coord yes
CCDM
Ccdm 00021-6817 RComp Comp B Note1
Note2 Discov num I 699 DRAs 3.17 DDEs 8.0
R dRAs 40 Year 1955 Theta 120 Rho 3.7
Obs 3 Vmag 10.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 23570S6850B
HIC 169
 
 
00021-6817 C
 
 
Coord arcsec 2000 000211.28-681624.6 Mag 15.22 PmRA 14.00 PmDE -4.0
Calc delta mag 5.51 Calc coord yes