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Current system
00325-6800
DON 7
HD 2989


Nearby doubles
10' : 00310-6804
UC 385

37' : 00268-6743
HJ 3366

51' : 00308-6711
UC 383

53' : 00237-6742
VOU 16

56' : 00306-6855
KPP4417

59' : 00394-6844
GLI 2

66' : 00215-6744
HJ 3361AB

71' : 00396-6703
UC 416

75' : 00457-6752
TOK 811

91' : 00429-6911
TDS1582

93' : 00160-6754
HJ 3357

94' : 00157-6800
LDS 8

111' : 00250-6618
UC 362

112' : 00216-6629
RSS 42

117' : 00207-6938
HUB 1

121' : 00470-6932
TDS 28

123' : 00174-6635
DON 2AB

126' : 00253-7000
TDS1455

129' : 00282-6555
R 3AB

135' : 00279-7013
UC 374

141' : 00384-6545
KPP2800

141' : 00524-6930
DUN 2

142' : 00469-6606
NSN 176

144' : 00171-6958
ALD 19

157' : 00427-6537
I 440

158' : 00337-7038
LDS 20



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

00325-6800 DON 7 (HD 2989)

 
 
00h 32m 28.68s -68° 00' 26.8" P.A. 259.00 sep 0.5 mag 10.32,10.06 Sp G5 dist. 50.74 pc (165.51 l.y.)
 
 
Coord 2000 00325-6800 Discov num DON   7 Comp Coord arcsec 2000 00 32 28.68 -68 00 26.8
Date first 1928 Date last 2019 Obs 5
Pa first 74 Pa last 258.9 P.A. Now (θ) 258.9°
Sep first 0.6 Sep last 0.538 Sep. Now (ρ) 0.538"
Mag pri 10.32 Mag sec 10.06 delta mag (ΔM) 0.26 Spectral class G5 (yellow)
Pri motion ra +106 Sec motion ra +106
Pri motion dec +063 Sec motion dec +063
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 2989 Constellation Tucana HIP 2556 Tycho2 9135-00172-1
Gaia DR2 4703771835241607680 HD 2989 CP CP-68 15 Distance 50.74
Distance ly 165.51
 
 
ORBITAL ELEMENTS
 
 
Period (P)150y Periastron (T)2037.8y Semi-major axis (a)0.608a
Eccentricity (e)0.186 Inclination (i)180° Longitude of periastron (ω)337°
Node (Ω)175° Notes ReferenceTok2020e
Equinox Last observation2019 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 309.5 0.630
2001 307.3 0.625
2002 305.0 0.621
2003 302.8 0.616
2004 300.5 0.611
2005 298.1 0.607
2006 295.7 0.602
2007 293.3 0.597
2008 290.8 0.592
2009 288.3 0.588
2010 285.8 0.583
2011 283.2 0.578
2012 280.6 0.573
2013 277.9 0.568
2014 275.2 0.564
2015 272.4 0.559
2016 269.6 0.554
2017 266.7 0.550
2018 263.8 0.545
2019 260.9 0.541
2020 257.9 0.537
2021 254.8 0.533
2022 251.7 0.529
2023 248.6 0.525
2024 245.4 0.521
2025 242.2 0.518
2026 238.9 0.515
2027 235.6 0.512
2028 232.2 0.509
2029 228.8 0.506
2030 225.4 0.504
2031 222.0 0.502
2032 218.5 0.500
2033 215.0 0.498
2034 211.5 0.497
2035 207.9 0.496
2036 204.4 0.495
2037 200.8 0.495
2038 197.3 0.495
2039 193.7 0.495
2040 190.2 0.496
2041 186.6 0.496
2042 183.1 0.498
2043 179.6 0.499
2044 176.1 0.501
2045 172.6 0.503
2046 169.2 0.505
2047 165.8 0.507
2048 162.4 0.510
2049 159.1 0.513
2050 155.8 0.516


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


 
  


wds00325-6800a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 00325-6800 DON 7 (HD 2989) : 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 DON Donner, H.F.
72 TOK Tokovinin, A., Cantarutti, R., Tighe, R., Schurter, P., van der Bliek, N.,
72 TOK Martinez, M., & Mondaca, E.
137 TOK Tokovinin, A., Corbett, H., Fors, O., Howard, W., Law, N.M., Moe, M.,
137 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
00325-6800 DON 7 1991 3 142 0.4 10.06 10.32 G5 003228.68-680026.8
00325-6800 DON 7 2014 4 274 0.6 10.06 10.32 G5 003228.68-680026.8
00325-6800 DON 7 2017 5 265 0.5 10.32 10.06 G5 003228.68-680026.8
00325-6800 DON 7 2019 5 259 0.5 10.32 10.06 G5 003228.68-680026.8

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

 
 
WDS 00325-6800 DON 7 (HD 2989) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 00325-6800 DON 7 (HD 2989) : MEASURES
 
 
No records found.

 
 
WDS 00325-6800 (HD 2989) : VIRTUAL EYEPIECE
 
 

00325-6800 DON 7A mag 10.32 Sp G5 00325-6800 DON 7B sep 0.2 P.A. 242.40 mag 10.06 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 00325-6800 (HD 2989) : ALADIN DSS IMAGE @ 00h 32m 28.68s -68° 00' 26.8"
 
 
 
 
WDS 00325-6800 DON 7 (HD 2989) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

00325-6800 DON 7 distance=1' 00310-6804 UC 385 distance=10' 00268-6743 HJ 3366 distance=37' 00308-6711 UC 383 distance=51' 00237-6742 VOU 16 distance=53' 00306-6855 KPP4417 distance=56' 00394-6844 GLI 2 distance=59' 00215-6744 HJ 3361AB distance=66' 00215-6744 BAU9001AC distance=66' 00396-6703 UC 416 distance=71' 00457-6752 TOK 811 distance=75' 00429-6911 TDS1582 distance=91' 00160-6754 HJ 3357 distance=93' 00157-6800 LDS 8 distance=94' 00250-6618 UC 362 distance=111' 00216-6629 RSS 42 distance=112' 00207-6938 HUB 1 distance=117' 00470-6932 TDS 28 distance=121' 00174-6635 DON 2AB distance=123' 00253-7000 TDS1455 distance=126' 00282-6555 R 3AB distance=129' 00282-6555 HJ 3370AC distance=129' 00279-7013 UC 374 distance=135' 00384-6545 KPP2800 distance=141' 00524-6930 DUN 2 distance=141' 00469-6606 NSN 176 distance=142' 00171-6958 ALD 19 distance=144' 00427-6537 I 440 distance=157' 00337-7038 LDS 20 distance=158' 00294-7037 UC 377 distance=158' 00164-7024 HEI 198 distance=167' 00427-6524 UC 425 distance=168' 00210-6527 TDS1414 distance=168' 00172-7032 SYU 1 distance=172' 00494-6540 TDS1632 distance=172' 00357-7055 OGL 44AB distance=176' 00357-7055 OGL 44AC distance=176' 00340-7056 OGL 40 distance=176' 00357-7055 OGL 44BC distance=176' 00261-7057 OGL 15 distance=180' 00334-7104 OGL 38 distance=184' 00346-7105 OGL 42 distance=185' 00209-6507 RST2241 distance=187' 00417-7102 OGL 64 distance=188' 00523-7037 B 1415 distance=189' 00332-7114 OGL 37 distance=194' 00282-6447 HJ 3369AB distance=195' 00282-6447 BAU 3AC distance=195' 00517-6520 HJ 3405 distance=197' 00523-6523 DAW 183 distance=197' 00287-7117 HEI 611 distance=198' 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 00325-6800 DON 7 259 0.5 1
Show 00310-6804 UC 385 194 30.4 10
Show 00268-6743 HJ 3366 352 20.6 37
Show 00308-6711 UC 383 42 22.1 51
Show 00237-6742 VOU 16 315 2.0 53
Show 00306-6855 KPP4417 202 3.4 56
Show 00394-6844 GLI 2 246 4.8 59
Show 00215-6744 HJ 3361 AB 293 5.1 66
Show 00215-6744 BAU9001 AC 161 34.5 66
Show 00396-6703 UC 416 219 58.8 71
Show 00457-6752 TOK 811 329 0.1 75
Show 00429-6911 TDS1582 324 0.6 91
Show 00160-6754 HJ 3357 337 9.9 93
Show 00157-6800 LDS 8 289 47.9 94
Show 00250-6618 UC 362 38 18.0 111
Show 00216-6629 RSS 42 249 29.0 112
Show 00207-6938 HUB 1 216 2.3 117
Show 00470-6932 TDS 28 297 0.9 121
Show 00174-6635 DON 2 AB 18 5.5 123
Show 00253-7000 TDS1455 126 0.5 126
Show 00282-6555 R 3 AB 242 1.6 129
Show 00282-6555 HJ 3370 AC 69 50.7 129
Show 00279-7013 UC 374 296 16.9 135
Show 00384-6545 KPP2800 231 1.1 141
Show 00524-6930 DUN 2 83 20.5 141
Show 00469-6606 NSN 176 212 3.0 142
Show 00171-6958 ALD 19 230 5.0 144
Show 00427-6537 I 440 269 0.4 157
Show 00337-7038 LDS 20 138 14.0 158
Show 00294-7037 UC 377 125 9.2 158
Show 00164-7024 HEI 198 178 0.1 167
Show 00427-6524 UC 425 353 12.2 168
Show 00210-6527 TDS1414 94 0.8 168
Show 00172-7032 SYU 1 90 0.1 172
Show 00494-6540 TDS1632 313 0.8 172
Show 00357-7055 OGL 44 AB 137 11.8 176
Show 00357-7055 OGL 44 AC 223 205.1 176
Show 00340-7056 OGL 40 79 1.1 176
Show 00357-7055 OGL 44 BC 226 204.5 176
Show 00261-7057 OGL 15 82 0.7 180
Show 00334-7104 OGL 38 93 4.9 184
Show 00346-7105 OGL 42 356 4.4 185
Show 00209-6507 RST2241 320 4.1 187
Show 00417-7102 OGL 64 274 6.0 188
Show 00523-7037 B 1415 255 4.3 189
Show 00332-7114 OGL 37 247 1.7 194
Show 00282-6447 HJ 3369 AB 342 15.1 195
Show 00282-6447 BAU 3 AC 283 53.3 195
Show 00517-6520 HJ 3405 337 12.8 197
Show 00523-6523 DAW 183 93 5.7 197
Show 00287-7117 HEI 611 345 1.6 198

 
 
WDS 00325-6800 : COMPONENTS
 
 
  A
B pa=242.4°
sep=0.22"
 
 
00325-6800 A
 
 
Name HD 2989 Coord arcsec 2000 003228.68-680026.8 Mag 10.32 Spectral class G5 (yellow)
PmRA 106.00 PmDE 63.0
CCDM
Ccdm 00325-6800 RComp Comp A Note1
Note2 Discov num DRAs -1.33 DDEs -26.8
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.6 Sp G5 PmNote *
PmRA 102 PmDE 69 Dm number -68 15 Cat1 CPD
Name2 Cat2 HD 2989 M HD
ADS BDS M ADS BDS N IDS IDS 00281S6834A
HIC 2556
 
 
00325-6800 B
 
 
Coord arcsec 2000 003228.64-680026.9 Mag 10.06 PmRA 106.00 PmDE 63.0
HIP 2556 Tycho2 9135-00172-1 HD 2989 CP CP-68 15
Calc delta mag 0.26 Calc coord yes
Tycho2
Tycho2 9135-00172-1 Pflag RAmdeg 8.11956696 DEmdeg -68.00748220
PmRA 105.7 PmDE 62.7 E RAmdeg 14 E DEmdeg 12
E pmRA 1.8 E pmDE 1.5 EpRAm 1990.13 EpDEm 1989.48
Num 7 Q RAmdeg 1.0 Q DEmdeg 0.5 Q pmRA 1.0
Q pmDE 0.5 BTmag 10.585 E BTmag 0.032 VTmag 9.496
E VTmag 0.019 Prox 999 TYC T HIP 2556
CCDM AB RAdeg 8.11891917 DEdeg -68.00762778 EpRA 1990 1.71
EpDE 1990 1.67 E RAdeg 13.9 E DEdeg 13.3 Posflg P
Corr 0.0
Hipparcos
Catalog H HIP 2556 Proxy H RAhms 00 32 28.54
DEdms -68 00 27.5 Vmag 9.36 VarFlag R Vmag H
RAdeg 8.11891 DEdeg -68.0076 AstroRef A Plx 19.65
CCDM 00325-6800 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 327 Rho 0.642 HD 2989 BD
CD CP CP-68 15 Dm number -68 15 VIred 0.94
SpType K2V R SpType Coord arcsec 2000 003228.54-680027.5
Hipparcos 2
HIP 2556 Sn 15 So 3 Nc 2
RArad 0.1417017874 DErad -1.1869573117 Plx 19.71 PmRA 106.28
PmDE 70.36 E RArad 0.96 E DErad 1.12 E Plx 1.25
E pmRA 1.05 E pmDE 1.35 Hpmag 9.5023 E Hpmag 0.0027
SHp 0.024 VA 0 BV 0.928 E BV 0.03
VI 0.97
CCDM
Ccdm 00325-6800 RComp Comp B Note1
Note2 Discov num DON 7 DRAs DDEs
R dRAs Year 1928 Theta 074 Rho 0.6
Obs 1 Vmag 12.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 00281S6834B
HIC 2556