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Doubles in session


Current system
00121-5832
RST 4739
HD 791


Nearby doubles
24' : 00116-5855
KPP2836

53' : 00101-5921
HJ 3348

54' : 00135-5924
UC 338

64' : 00108-5729
HJ 3350

77' : 00039-5750
I 700

80' : 00211-5756
UC 354

87' : 00091-5708
TDS1316

88' : 00094-5707
RST5561

89' : 00030-5741
UC 308

101' : 00246-5856
TDS1448

103' : 00238-5919
UC 358

106' : 00250-5904
SPM 2

106' : 00091-5649
UC 327

111' : 00261-5832
I 437

113' : 00018-5715
HJ 5438

116' : 00266-5816
KPP 820

123' : 00034-5651
TDS1276

124' : 00040-5647
KPP4407

125' : 00025-5654
B 1022

132' : 00076-6038
I 434

133' : 00001-5700
KPP4401

142' : 00077-5615
HDS 15

142' : 00096-5612
B 2062

143' : 00237-5643
RST 8

145' : 00304-5857
KPP4416

149' : 00050-6050
UC 314



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.

00121-5832 RST 4739 (HD 791)

 
 
00h 12m 05.19s -58° 31' 29.3" P.A. 262.00 sep 0.2 mag 8.44,8.61 Sp G5IV/V dist. 59.38 pc (193.7 l.y.)
 
 
Coord 2000 00121-5832 Discov num RST4739 Comp Coord arcsec 2000 00 12 05.19 -58 31 29.3
Date first 1942 Date last 2020 Obs 13
Pa first 283 Pa last 261.5 P.A. Now (θ) 245.3°
Sep first 0.3 Sep last 0.236 Sep. Now (ρ) 0.198"
Mag pri 8.44 Mag sec 8.61 delta mag (ΔM) 0.17 Spectral class G5IV/V (yellow)
Pri motion ra +066 Sec motion ra
Pri motion dec -156 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 791 Constellation Tucana SAO 231967 HIP 975
Tycho2 8470-00653-1 HD 791 GC 213 CP CP-59 10
Distance 59.38 Distance ly 193.7
 
 
ORBITAL ELEMENTS
 
 
Period (P)38.23y Periastron (T)2027.97y Semi-major axis (a)0.226a
Eccentricity (e)0.551 Inclination (i)155.6° Longitude of periastron (ω)275.8°
Node (Ω)50.1° Notes ReferenceCve2020
Equinox2000 Last observation2018 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 349.0 0.273
2001 344.3 0.283
2002 339.9 0.292
2003 335.7 0.299
2004 331.7 0.305
2005 327.8 0.310
2006 324.1 0.314
2007 320.4 0.317
2008 316.8 0.319
2009 313.2 0.320
2010 309.6 0.319
2011 306.0 0.318
2012 302.4 0.315
2013 298.7 0.312
2014 294.9 0.307
2015 290.9 0.301
2016 286.8 0.294
2017 282.4 0.285
2018 277.8 0.275
2019 272.7 0.263
2020 267.2 0.250
2021 261.0 0.235
2022 253.8 0.218
2023 245.3 0.198
2024 234.9 0.176
2025 221.1 0.151
2026 201.8 0.125
2027 172.7 0.102
2028 132.5 0.093
2029 93.6 0.105
2030 66.2 0.128


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


 
  


wds00121-5832a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 00121-5832 RST 4739 (HD 791) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Cve2020 orb - Cvetkovic, Z. 2020IAUDS.200....1C
Cve2020 Inf. Circ. 200, 1, 2020
 
 
DISCOVERER
 
 
idgroup discov author
1 RST Rossiter, R.A.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
00121-5832 RST4739 1991 5 259 0.1 8.44 8.61 G5IV/V 001205.19-583129.3
00121-5832 RST4739 2008 7 134 0.3 8.44 8.61 G5IV/V 001205.19-583129.3
00121-5832 RST4739 2015 8 288 0.3 8.44 8.61 G5IV/V 001205.19-583129.3
00121-5832 RST4739 2017 10 279 0.3 8.44 8.61 G5IV/V 001205.19-583129.3
00121-5832 RST4739 2018 11 275 0.3 8.44 8.61 G5IV/V 001205.19-583129.3
00121-5832 RST4739 2019 12 270 0.3 8.44 8.61 G5IV/V O 001205.19-583129.3
00121-5832 RST4739 2020 13 262 0.2 8.44 8.61 G5IV/V O 001205.19-583129.3

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

 
 
WDS 00121-5832 RST 4739 (HD 791) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 00121-5832 RST 4739 (HD 791) : MEASURES
 
 
No records found.

 
 
WDS 00121-5832 (HD 791) : VIRTUAL EYEPIECE
 
 

00121-5832 RST4739A mag 8.44 Sp G5IV/V 00121-5832 RST4739B sep 0.1 P.A. 254.00 mag 8.61 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 00121-5832 (HD 791) : ALADIN DSS IMAGE @ 00h 12m 05.19s -58° 31' 29.3"
 
 
 
 
WDS 00121-5832 RST 4739 (HD 791) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

00121-5832 RST4739 distance=0' 00116-5855 KPP2836 distance=24' 00101-5921 HJ 3348 distance=53' 00135-5924 UC 338 distance=54' 00108-5729 HJ 3350 distance=64' 00039-5750 I 700 distance=77' 00211-5756 UC 354 distance=80' 00091-5708 TDS1316 distance=87' 00094-5707 RST5561 distance=88' 00030-5741 UC 308 distance=89' 00246-5856 TDS1448 distance=101' 00238-5919 UC 358 distance=103' 00250-5904 SPM 2 distance=106' 00091-5649 UC 327 distance=106' 00261-5832 I 437 distance=111' 00018-5715 HJ 5438 distance=113' 00266-5816 KPP 820 distance=116' 00034-5651 TDS1276 distance=123' 00040-5647 KPP4407 distance=124' 00025-5654 B 1022 distance=125' 00076-6038 I 434 distance=132' 00001-5700 KPP4401 distance=133' 00077-5615 HDS 15 distance=142' 00096-5612 B 2062 distance=142' 00237-5643 RST 8 distance=143' 00304-5857 KPP4416 distance=145' 00050-6050 UC 314 distance=149' 00059-6104 CBL 558 distance=160' 00184-5600 UC 350 distance=160' 00239-5620 LDS 16AB distance=163' 00239-5620 LDS 16Aa,Ab distance=163' 00171-5551 RST2237 distance=166' 00115-5545 HDS 25 distance=167' 00049-5554 DAM1266 distance=168' 00052-5548 B 2061 distance=174' 00049-6121 TSN 12 distance=178' 00163-6128 HJ 3358 distance=180' 00300-6023 JSP 855AB distance=180' 00300-6023 BAU 4AC distance=180' 00298-5642 HJ 3371 distance=180' 00209-5534 TDS1413 distance=192' 00175-6142 KPP1737 distance=195' 00160-6148 B 636 distance=199' 00319-6057 JSP 856 distance=209' 00312-6102 HJ 3372 distance=210' 00287-5544 RSS 43 distance=215' 00147-6206 LDS 6 distance=216' 00078-6205 TVB 20 distance=216' 00015-6203 B 628 distance=226' 00274-5523 KPP 55 distance=227' 00206-5449 TDS1410 distance=234' 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 00121-5832 RST4739 262 0.2
Show 00116-5855 KPP2836 327 12.0 24
Show 00101-5921 HJ 3348 268 20.0 53
Show 00135-5924 UC 338 228 102.6 54
Show 00108-5729 HJ 3350 184 3.2 64
Show 00039-5750 I 700 359 0.3 77
Show 00211-5756 UC 354 126 13.6 80
Show 00091-5708 TDS1316 241 0.5 87
Show 00094-5707 RST5561 175 4.3 88
Show 00030-5741 UC 308 250 8.8 89
Show 00246-5856 TDS1448 181 0.6 101
Show 00238-5919 UC 358 23 28.1 103
Show 00250-5904 SPM 2 3 25.6 106
Show 00091-5649 UC 327 182 44.5 106
Show 00261-5832 I 437 177 4.2 111
Show 00018-5715 HJ 5438 322 11.1 113
Show 00266-5816 KPP 820 191 7.0 116
Show 00034-5651 TDS1276 267 0.5 123
Show 00040-5647 KPP4407 26 1.6 124
Show 00025-5654 B 1022 127 3.0 125
Show 00076-6038 I 434 32 5.0 132
Show 00001-5700 KPP4401 145 2.5 133
Show 00077-5615 HDS 15 70 0.1 142
Show 00096-5612 B 2062 11 10.7 142
Show 00237-5643 RST 8 218 1.3 143
Show 00304-5857 KPP4416 65 32.4 145
Show 00050-6050 UC 314 277 14.0 149
Show 00059-6104 CBL 558 25 19.9 160
Show 00184-5600 UC 350 169 66.1 160
Show 00239-5620 LDS 16 AB 57 91.8 163
Show 00239-5620 LDS 16 Aa,Ab 281 2.9 163
Show 00171-5551 RST2237 267 0.5 166
Show 00115-5545 HDS 25 74 0.1 167
Show 00049-5554 DAM1266 209 9.5 168
Show 00052-5548 B 2061 2 1.3 174
Show 00049-6121 TSN 12 206 179.5 178
Show 00163-6128 HJ 3358 12 15.9 180
Show 00300-6023 JSP 855 AB 241 3.3 180
Show 00300-6023 BAU 4 AC 311 29.0 180
Show 00298-5642 HJ 3371 335 10.3 180
Show 00209-5534 TDS1413 148 0.8 192
Show 00175-6142 KPP1737 130 13.4 195
Show 00160-6148 B 636 103 2.2 199
Show 00319-6057 JSP 856 303 7.5 209
Show 00312-6102 HJ 3372 95 26.0 210
Show 00287-5544 RSS 43 127 24.7 215
Show 00147-6206 LDS 6 131 6.1 216
Show 00078-6205 TVB 20 40 7.5 216
Show 00015-6203 B 628 207 3.0 226
Show 00274-5523 KPP 55 347 3.9 227
Show 00206-5449 TDS1410 310 0.5 234

 
 
WDS 00121-5832 : COMPONENTS
 
 
  A
B pa=254.0°
sep=0.13"
 
 
00121-5832 A
 
 
Componente originario normalizzato AB Name HD 791 Coord arcsec 2000 001205.19-583129.3 Mag 8.44
Spectral class G5IV/V (yellow) PmRA 66.00 PmDE -156.0 SAO 231967
HIP 975 Tycho2 8470-00653-1 HD 791 GC 213
CP CP-59 10
Tycho2
Tycho2 8470-00653-1 Pflag RAmdeg 3.02190386 DEmdeg -58.52516349
PmRA 65.3 PmDE -150.2 E RAmdeg 5 E DEmdeg 5
E pmRA 1.4 E pmDE 1.4 EpRAm 1991.20 EpDEm 1991.15
Num 11 Q RAmdeg 1.4 Q DEmdeg 1.2 Q pmRA 1.4
Q pmDE 1.1 BTmag 8.558 E BTmag 0.016 VTmag 7.714
E VTmag 0.011 Prox 999 TYC T HIP 975
CCDM AB RAdeg 3.02161306 DEdeg -58.52481333 EpRA 1990 1.64
EpDE 1990 1.61 E RAdeg 4.8 E DEdeg 4.8 Posflg P
Corr 0.1
SAO
SAO 231967 DelFlag RA1950 PmRA1950 0.0093
DE1950 PmDE1950 -0.146 Vmag 7.5 SpType G5
Double code Source 43 CatNum 52 DM CP-59 10
DMcomp BDsup HD 791 M HD 0
GC 213 RA1950rad 0.04190937 DE1950rad -1.02627389 PmRA2000 0.0088
PmDE2000 -0.151
Hipparcos
Catalog H HIP 975 Proxy H RAhms 00 12 05.19
DEdms -58 31 29.3 Vmag 7.62 VarFlag R Vmag H
RAdeg 3.0216 DEdeg -58.5248 AstroRef * Plx 17.21
CCDM 00121-5832 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source S Qual A M HIP AB
Theta 259 Rho 0.115 HD 791 BD
CD CP CP-59 10 Dm number -59 10 VIred 0.79
SpType G5IV/V R SpType Coord arcsec 2000 001205.19-583129.3
Hipparcos 2
HIP 975 Sn 55 So 3 Nc 2
RArad 0.0527369461 DErad -1.0214504536 Plx 16.84 PmRA 65.99
PmDE -151.03 E RArad 0.44 E DErad 0.45 E Plx 0.61
E pmRA 0.57 E pmDE 0.63 Hpmag 7.7719 E Hpmag 0.0009
SHp 0.013 VA 0 BV 0.758 E BV 0.008
VI 0.8
CCDM
Ccdm 00121-5832 RComp Comp A Note1
Note2 Discov num DRAs -0.76 DDEs 29.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.2 Sp G5 PmNote *
PmRA 65 PmDE -146 Dm number -59 10 Cat1 CPD
Name2 231967 Cat2 SAO HD 791 M HD
ADS BDS M ADS BDS N IDS IDS 00071S5905A
HIC 975
 
 
00121-5832 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 001205.17-583129.3 Mag 8.61 Calc delta mag 0.17
Calc coord yes
CCDM
Ccdm 00121-5832 RComp Comp B Note1
Note2 Discov num RST4739 DRAs DDEs
R dRAs Year 1942 Theta 283 Rho 0.3
Obs 1 Vmag 8.7 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 00071S5905B
HIC 975