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Current system
21491-7206
HEI 598
AY Ind


Nearby doubles
12' : 21516-7207
UC 4583

36' : 21478-7241
HEI 597

46' : 21561-7235
HJ 5297

58' : 22015-7204
KPP3065AB

64' : 21377-7132
TDT3066

70' : 21569-7108
LDS 762

76' : 21335-7148
KPP1573

79' : 21506-7325
TDT3188

87' : 21303-7200
HEI 595

88' : 21479-7039
TDT3159

91' : 21540-7334
UC 4593

91' : 21548-7039
TDT3235

95' : 21523-7033
HEI 600

95' : 21375-7049
HEI 409

97' : 22045-7103
HJ 5312

98' : 21307-7121
GLI 270

100' : 21533-7344
TOK 214

110' : 21510-7018
TDT3190

112' : 21328-7332
HJ 5268

114' : 22090-7102
UC 4663

117' : 21509-7403
TDT3189

122' : 21346-7027
TDT3039

125' : 21531-7409
KPP3055

130' : 21479-7414
HJ 5287

130' : 22000-7407
B 2499

133' : 21306-7351
TDS1131



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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

21491-7206 HEI 598 (AY Ind)

 
 
21h 49m 05.88s -72° 06' 08.8" P.A. 153.00 sep 0.7 mag 10.11,11.17 Sp M2Ve dist. 16.32 pc (53.24 l.y.)
 
 
Coord 2000 21491-7206 Discov num HEI 598 Comp Coord arcsec 2000 21 49 05.88 -72 06 08.8
Date first 1989 Date last 2021 Obs 8
Pa first 5 Pa last 152.5 P.A. Now (θ) 152.5°
Sep first 1.3 Sep last 0.69 Sep. Now (ρ) 0.69"
Mag pri 10.11 Mag sec 11.17 delta mag (ΔM) 1.06 Spectral class M2Ve (red)
Pri motion ra +320 Sec motion ra +320
Pri motion dec -303 Sec motion dec -303
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name AY Ind Constellation Indus HIP 107705 Tycho2 9331-00189-1
GL GJ 1264 CD CD-72 1700 CP CP-72 2640 Distance 16.32
Distance ly 53.24
 
 
ORBITAL ELEMENTS
 
 
Period (P)120y Periastron (T)2016.44y Semi-major axis (a)1.565a
Eccentricity (e)0.349 Inclination (i)51.8° Longitude of periastron (ω)67.8°
Node (Ω)42.8° Notes ReferenceTok2020e
Equinox Last observation2019 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 29.9 1.307
2001 32.4 1.295
2002 35.0 1.279
2003 37.6 1.260
2004 40.3 1.237
2005 43.2 1.210
2006 46.2 1.180
2007 49.3 1.145
2008 52.7 1.106
2009 56.3 1.063
2010 60.2 1.016
2011 64.6 0.967
2012 69.4 0.915
2013 74.8 0.862
2014 80.9 0.810
2015 87.8 0.761
2016 95.6 0.716
2017 104.4 0.680
2018 114.0 0.654
2019 124.2 0.642
2020 134.5 0.644
2021 144.6 0.661
2022 154.0 0.691
2023 162.4 0.731
2024 169.9 0.780
2025 176.4 0.835
2026 182.1 0.893
2027 187.1 0.953
2028 191.5 1.013
2029 195.5 1.073
2030 199.0 1.132
2031 202.1 1.188
2032 205.0 1.242
2033 207.7 1.293
2034 210.1 1.342
2035 212.4 1.388
2036 214.6 1.430
2037 216.6 1.470
2038 218.5 1.507
2039 220.3 1.540
2040 222.1 1.571
2041 223.8 1.599
2042 225.4 1.625
2043 227.0 1.647
2044 228.6 1.667
2045 230.1 1.685
2046 231.6 1.700
2047 233.0 1.712
2048 234.5 1.723
2049 235.9 1.731
2050 237.3 1.738


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


 
  


wds21491-7206a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 21491-7206 HEI 598 (AY Ind) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Tok2020e St j Tokovinin, A., Mason, B.D., Mendez, R.A., Costa, E. & Horch, E.P. 2020AJ....160....7T
Tok2020e +orb AJ 160, 7, 2020
 
 
DISCOVERER
 
 
idgroup discov author
1 HEI Heintz, W.D.
290 TOK Tokovinin, A., Cantarutti, R., Tighe, R., Schurter, P., van der Bliek, N.,
290 TOK Martinez, M., & Mondaca, E.
355 TOK Tokovinin, A., Corbett, H., Fors, O., Howard, W., Law, N.M., Moe, M.,
355 TOK Ratzloff, J. & Walter, F.M.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21491-7206 HEI 598 1991 3 1 1.4 10.11 11.17 M2Ve D 214905.88-720608.8
21491-7206 HEI 598 2014 4 86 0.8 10.11 11.17 M2Ve 214905.88-720608.8
21491-7206 HEI 598 2018 5 121 0.6 10.11 11.17 M2Ve 214905.88-720608.8
21491-7206 HEI 598 2019 6 129 0.6 10.11 11.17 M2Ve 214905.88-720608.8
21491-7206 HEI 598 2020 7 142 0.7 10.11 11.17 M2Ve 214905.88-720608.8
21491-7206 HEI 598 2021 8 153 0.7 10.11 11.17 M2Ve 214905.88-720608.8

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

 
 
WDS 21491-7206 HEI 598 (AY Ind) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21491-7206 HEI 598 (AY Ind) : MEASURES
 
 
No records found.

 
 
WDS 21491-7206 (AY Ind) : VIRTUAL EYEPIECE
 
 

21491-7206 HEI 598A mag 10.11 Sp M2Ve 21491-7206 HEI 598B sep 0.6 P.A. 170.90 mag 11.17 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 21491-7206 (AY Ind) : ALADIN DSS IMAGE @ 21h 49m 05.88s -72° 06' 08.8"
 
 
 
 
WDS 21491-7206 HEI 598 (AY Ind) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21491-7206 HEI 598 distance=0' 21516-7207 UC 4583 distance=12' 21478-7241 HEI 597 distance=36' 21561-7235 HJ 5297 distance=46' 22015-7204 KPP3065AB distance=58' 21377-7132 TDT3066 distance=64' 21569-7108 LDS 762 distance=70' 21335-7148 KPP1573 distance=76' 21506-7325 TDT3188 distance=79' 21303-7200 HEI 595 distance=87' 21479-7039 TDT3159 distance=88' 21540-7334 UC 4593 distance=91' 21548-7039 TDT3235 distance=91' 21523-7033 HEI 600 distance=95' 21375-7049 HEI 409 distance=95' 22045-7103 HJ 5312 distance=97' 21307-7121 GLI 270 distance=98' 21533-7344 TOK 214 distance=100' 21510-7018 TDT3190 distance=110' 21328-7332 HJ 5268 distance=112' 22090-7102 UC 4663 distance=114' 21509-7403 TDT3189 distance=117' 21346-7027 TDT3039 distance=122' 21531-7409 KPP3055 distance=125' 21479-7414 HJ 5287 distance=130' 22000-7407 B 2499 distance=130' 21306-7351 TDS1131 distance=133' 21593-6957 SHN 257 distance=139' 21312-7401 UC 4483 distance=139' 21318-7405 UC 4484 distance=141' 21411-6946 KPP3066 distance=146' 21376-7426 UC 4513 distance=149' 22040-6955 LDS 769 distance=150' 22037-6953 UC 4637 distance=151' 22066-7001 TVB 322 distance=152' 21482-6935 UC 4569 distance=152' 21324-6958 TDT3020 distance=152' 21543-7441 KPP4255 distance=157' 21536-6922 LDS 759 distance=166' 22057-6941 TDT3335 distance=167' 21529-7454 HJ 5295 distance=169' 21548-6914 UC 4595 distance=175' 22062-6929 UC 4646 distance=179' 22006-6905 UC 4626 distance=191' 21536-6855 UC 4590 distance=193' 21503-7521 FAH 2 distance=195' 21593-7519 TDT3277 distance=198' 21303-6854 UC 4479 distance=215' 21457-7541 KPP4246 distance=216' 21378-6828 HDS3079 distance=226' 21579-6813 CVN 11 distance=238' 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 21491-7206 HEI 598 153 0.7 0
Show 21516-7207 UC 4583 233 62.1 12
Show 21478-7241 HEI 597 321 0.2 36
Show 21561-7235 HJ 5297 317 8.6 46
Show 22015-7204 KPP3065 AB 37 2.1 58
Show 21377-7132 TDT3066 278 0.6 64
Show 21569-7108 LDS 762 201 8.9 70
Show 21335-7148 KPP1573 343 11.9 76
Show 21506-7325 TDT3188 24 0.5 79
Show 21303-7200 HEI 595 330 0.5 87
Show 21479-7039 TDT3159 274 0.9 88
Show 21540-7334 UC 4593 2 25.6 91
Show 21548-7039 TDT3235 345 0.9 91
Show 21523-7033 HEI 600 294 0.2 95
Show 21375-7049 HEI 409 14 0.1 95
Show 22045-7103 HJ 5312 357 25.7 97
Show 21307-7121 GLI 270 315 29.1 98
Show 21533-7344 TOK 214 113 0.9 100
Show 21510-7018 TDT3190 95 0.4 110
Show 21328-7332 HJ 5268 230 14.3 112
Show 22090-7102 UC 4663 253 101.6 114
Show 21509-7403 TDT3189 156 0.9 117
Show 21346-7027 TDT3039 67 0.5 122
Show 21531-7409 KPP3055 11 1.4 125
Show 21479-7414 HJ 5287 319 5.3 130
Show 22000-7407 B 2499 358 1.9 130
Show 21306-7351 TDS1131 303 0.9 133
Show 21593-6957 SHN 257 -1 0.9 139
Show 21312-7401 UC 4483 336 46.7 139
Show 21318-7405 UC 4484 345 40.3 141
Show 21411-6946 KPP3066 122 1.1 146
Show 21376-7426 UC 4513 32 30.1 149
Show 22040-6955 LDS 769 136 14.3 150
Show 22037-6953 UC 4637 262 38.5 151
Show 22066-7001 TVB 322 225 1.5 152
Show 21482-6935 UC 4569 251 25.2 152
Show 21324-6958 TDT3020 266 0.7 152
Show 21543-7441 KPP4255 121 1.9 157
Show 21536-6922 LDS 759 45 42.0 166
Show 22057-6941 TDT3335 57 0.4 167
Show 21529-7454 HJ 5295 203 21.6 169
Show 21548-6914 UC 4595 30 11.7 175
Show 22062-6929 UC 4646 157 17.5 179
Show 22006-6905 UC 4626 190 16.6 191
Show 21536-6855 UC 4590 22 32.7 193
Show 21503-7521 FAH 2 204 14.5 195
Show 21593-7519 TDT3277 157 0.5 198
Show 21303-6854 UC 4479 91 66.7 215
Show 21457-7541 KPP4246 108 1.3 216
Show 21378-6828 HDS3079 52 0.3 226
Show 21579-6813 CVN 11 240 1.6 238

 
 
WDS 21491-7206 : COMPONENTS
 
 
  A
B pa=170.9°
sep=0.62"
 
 
21491-7206 A
 
 
Name AY Ind Coord arcsec 2000 214905.88-720608.8 Mag 10.11 Spectral class M2Ve (red)
PmRA 320.00 PmDE -303.0 HIP 107705 Tycho2 9331-00189-1
CD CD-72 1700 CP CP-72 2640
Tycho2
Tycho2 9331-00189-1 Pflag P RAmdeg 327.27450677 DEmdeg -72.10244323
PmRA 320.2 PmDE -302.5 E RAmdeg 24 E DEmdeg 22
E pmRA 2.1 E pmDE 2.0 EpRAm 1989.27 EpDEm 1989.70
Num 6 Q RAmdeg 1.9 Q DEmdeg 1.2 Q pmRA 1.9
Q pmDE 1.1 BTmag 11.736 E BTmag 0.065 VTmag 10.107
E VTmag 0.029 Prox 14 TYC T HIP 107705
CCDM A RAdeg 327.27207806 DEdeg -72.10183083 EpRA 1990 1.63
EpDE 1990 1.68 E RAdeg 25.2 E DEdeg 22.9 Posflg D
Corr 0.1
Hipparcos
Catalog H HIP 107705 Proxy H RAhms 21 49 05.27
DEdms -72 06 06.4 Vmag 9.53 VarFlag R Vmag H
RAdeg 327.272 DEdeg -72.1018 AstroRef A Plx 62
CCDM 21491-7206 N CCDM M Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 9 Rho 1.315 HD BD
CD CD-72 1700 CP CP-72 2640 Dm number -72 1700 VIred 1.84
SpType M2Ve R SpType Coord arcsec 2000 214905.27-720606.4
Hipparcos 2
HIP 107705 Sn 15 So 3 Nc 2
RArad 5.7119733174 DErad -1.258413525 Plx 61.29 PmRA 297.92
PmDE -293.49 E RArad 1.14 E DErad 1.04 E Plx 1.54
E pmRA 1.42 E pmDE 1.37 Hpmag 9.6201 E Hpmag 0.0029
SHp 0.029 VA 0 BV 1.42 E BV 0.51
VI 1.84
CCDM
Ccdm 21491-7206 RComp Comp A Note1
Note2 Discov num DRAs -0.05 DDEs -9.5
R dRAs 81 Year Theta Rho
Obs 2 Vmag 9.0 Sp PmNote @
PmRA 339 PmDE -309 Dm number -72 2640 Cat1 CPD
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS * IDS 21402S7234A
HIC 107705
 
 
21491-7206 B
 
 
Coord arcsec 2000 214905.90-720609.4 Mag 11.17 PmRA 320.00 PmDE -303.0
Tycho2 9331-00189-2 Calc delta mag 1.06 Calc coord yes
Tycho2
Tycho2 9331-00189-2 Pflag P RAmdeg 327.27450677 DEmdeg -72.10244323
PmRA 320.2 PmDE -302.5 E RAmdeg 24 E DEmdeg 22
E pmRA 2.1 E pmDE 2.0 EpRAm 1989.27 EpDEm 1989.70
Num 6 Q RAmdeg 1.9 Q DEmdeg 1.2 Q pmRA 1.9
Q pmDE 1.1 BTmag 12.595 E BTmag 0.183 VTmag 11.169
E VTmag 0.072 Prox 14 TYC HIP 107705
CCDM B RAdeg 327.27210222 DEdeg -72.10145389 EpRA 1990 1.63
EpDE 1990 1.69 E RAdeg 65.6 E DEdeg 58.9 Posflg D
Corr 0.1
CCDM
Ccdm 21491-7206 RComp Comp B Note1
Note2 Discov num HEI 598 DRAs DDEs
R dRAs Year 1989 Theta 5 Rho 1.3
Obs 1 Vmag 9.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS * IDS 21402S7234B
HIC 107705