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Current system
22273-6458
CHR 188 Aa,Ab


Nearby doubles
9' : 22286-6500
MLO9001

22' : 22243-6508
HJ 5328AB

27' : 22237-6513
LDS 783AB

30' : 22231-6509
HJ 5327

43' : 22247-6537
TOK 864

54' : 22243-6408
TDT3511

59' : 22254-6556
MLO 95

60' : 22296-6555
TDT3545

73' : 22177-6538
TDT3450

75' : 22384-6523
HDS3215

77' : 22305-6612
TDT3555

78' : 22321-6609
HDS3197

80' : 22336-6350
TDT3583

83' : 22354-6605
HJ 5342AB

90' : 22141-6531
KPP1337

93' : 22147-6414
UC 4689

93' : 22278-6325
NZO 103AB

101' : 22428-6521
LDS 791AB

101' : 22427-6436
TDT3669

103' : 22153-6351
RST3295

104' : 22435-6449
TOK 351

107' : 22437-6439
R 339

113' : 22412-6611
TDT3653

114' : 22444-6536
TDT3683

115' : 22248-6652
BVD 141

119' : 22460-6459
TDT3696



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

22273-6458 CHR 188 Aa,Ab

 
 
22h 27m 19.87s -64° 57' 59.0" P.A. 293.00 sep 0.1 mag 5.10,5.40 Sp B9.5V dist. 76.92 pc (250.91 l.y.)
 
 
Coord 2000 22273-6458 Discov num CHR 188 Comp Aa,Ab Coord arcsec 2000 22 27 19.87 -64 57 59.0
Date first 1992 Date last 2021 Obs 14
Pa first 251 Pa last 293.2 P.A. Now (θ) 345.4°
Sep first 0.0 Sep last 0.081 Sep. Now (ρ) 0.041"
Mag pri 5.10 Mag sec 5.40 delta mag (ΔM) 0.3 Spectral class B9.5V (blue-white)
Pri motion ra +060 Sec motion ra
Pri motion dec +009 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
22273-6458 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 255222 22 27 20 -64 57 59 CHR 188 Aa,Ab 2021 14 293 0.1 5.10 5.40 0.30 Y <===
Show Del Tuc 255222 22 27 20 -64 57 59 HJ 5334 AB 2016 23 279 6.8 4.49 8.73 4.24
Triple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name NSV14158 Tuc Constellation Tucana SAO 255222 HIP 110838
Tycho2 9120-01918-1 Gaia DR2 6404338508023617664 HD 212581 HR 8540
GC 31346 CP CP-65 4044 Bayer Delta Tucanae Bayer name Del Tuc
Distance 76.92 Distance ly 250.91 Bayer greek δ Tuc
 
 
ORBITAL ELEMENTS
 
 
Period (P)3.975y Periastron (T)2015.721y Semi-major axis (a)0.053a
Eccentricity (e)0.594 Inclination (i)43.5° Longitude of periastron (ω)205.7°
Node (Ω)274.9° Notesn ReferenceTok2018e
Equinox2000 Last observation2018 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 187.5 0.020
2001 275.2 0.074
2002 298.6 0.078
2003 335.9 0.047
2004 196.2 0.021
2005 275.9 0.075
2006 299.2 0.078
2007 337.6 0.046
2008 203.9 0.023
2009 276.5 0.075
2010 299.8 0.078
2011 339.4 0.045
2012 210.5 0.024
2013 277.2 0.076
2014 300.5 0.077
2015 341.3 0.044
2016 216.3 0.026
2017 277.8 0.076
2018 301.1 0.077
2019 343.3 0.043
2020 221.4 0.028
2021 278.4 0.077
2022 301.7 0.076
2023 345.4 0.041
2024 225.8 0.030
2025 279.1 0.077
2026 302.4 0.076
2027 347.6 0.040
2028 229.8 0.032
2029 279.7 0.078
2030 303.0 0.075


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


 
  


wds22273-6458a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 22273-6458 CHR 188 Aa,Ab : NOTES
 
 
discov_num notes refcode
CHR 188 del Tuc
 
 
REFERENCES
 
 
refcode metd author reference
Tok2018e orb - Tokovinin, A. 2018IAUDS.195....1T
Tok2018e Inf. Circ. 195, 1, 2018
 
 
DISCOVERER
 
 
idgroup discov author
1 CHR Center for High Ang. Res. Astronomy (speckle interferometry systems)
3 HJ Herschel, J.F.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
22273-6458 CHR 188 Aa,Ab 1992 1 251 0.0 4.48   B9.5V N 222719.87-645759.0
22273-6458 CHR 188 Aa,Ab 2014 2 152 0.1 4.48   B9.5V N 222719.87-645759.0
22273-6458 CHR 188 Aa,Ab 2015 4 14 0.0 4.48   B9.5V N 222719.87-645759.0
22273-6458 CHR 188 Aa,Ab 2017 8 297 0.1 5.10 5.40 B9.5V N 222719.87-645759.0
22273-6458 CHR 188 Aa,Ab 2018 10 326 0.1 5.10 5.40 B9.5V NO 222719.87-645759.0
22273-6458 CHR 188 Aa,Ab 2019 12 216 0.0 5.10 5.40 B9.5V NO 222719.87-645759.0
22273-6458 CHR 188 Aa,Ab 2020 13 273 0.1 5.10 5.40 B9.5V NO 222719.87-645759.0
22273-6458 CHR 188 Aa,Ab 2021 14 293 0.1 5.10 5.40 B9.5V NO 222719.87-645759.0

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

 
 
WDS 22273-6458 CHR 188 Aa,Ab : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 22273-6458 CHR 188 Aa,Ab : MEASURES
 
 
No records found.

 
 
WDS 22273-6458 : VIRTUAL EYEPIECE
 
 

22273-6458 HJ 5334A mag 4.49 Sp B9.5V 22273-6458 CHR 188Ab mag 5.4 22273-6458 HJ 5334B sep 3.0 P.A. 291.40 mag 8.73 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 22273-6458 : ALADIN DSS IMAGE @ 22h 27m 19.87s -64° 57' 59.0"
 
 
 
 
WDS 22273-6458 CHR 188 Aa,Ab : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

22273-6458 CHR 188Aa,Ab distance=0' 22286-6500 MLO9001 distance=9' 22243-6508 HJ 5328AB distance=22' 22243-6508 BAU 71AC distance=22' 22237-6513 LDS 783AB distance=27' 22237-6513 BAU 70AC distance=27' 22237-6513 BAU 70AD distance=27' 22237-6513 BAU 70AE distance=27' 22231-6509 HJ 5327 distance=30' 22247-6537 TOK 864 distance=43' 22243-6408 TDT3511 distance=54' 22254-6556 MLO 95 distance=59' 22296-6555 TDT3545 distance=60' 22177-6538 TDT3450 distance=73' 22384-6523 HDS3215 distance=75' 22305-6612 TDT3555 distance=77' 22321-6609 HDS3197 distance=78' 22336-6350 TDT3583 distance=80' 22354-6605 HJ 5342AB distance=83' 22354-6605 BAU 74AC distance=83' 22141-6531 KPP1337 distance=90' 22147-6414 UC 4689 distance=93' 22278-6325 NZO 103AB distance=93' 22278-6325 BAU 72AC distance=93' 22428-6521 LDS 791AB distance=101' 22428-6521 DAM 246AC distance=101' 22427-6436 TDT3669 distance=101' 22153-6351 RST3295 distance=103' 22435-6449 TOK 351 distance=104' 22437-6439 R 339 distance=107' 22412-6611 TDT3653 distance=113' 22444-6536 TDT3683 distance=114' 22248-6652 BVD 141 distance=115' 22460-6459 TDT3696 distance=119' 22239-6656 HDS3174 distance=120' 22262-6254 UC 4745 distance=124' 22104-6608 UC 4668 distance=127' 22446-6357 HDO 300 distance=127' 22220-6705 DON1025 distance=132' 22117-6628 TDT3399 distance=133' 22331-6707 LDS 788 distance=134' 22127-6643 UC 4683AB distance=139' 22417-6316 RSS 573 distance=139' 22375-6706 DON1035AB distance=143' 22375-6706 SHY 356AC distance=143' 22180-6249 I 20AB distance=144' 22453-6641 KPP1677 distance=151' 22286-6729 VIG 21 distance=152' 22097-6319 TDT3379 distance=152' 22116-6306 RST2192 distance=153' 22110-6307 TDT3390 distance=155' 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 22273-6458 CHR 188 Aa,Ab 293 0.1
Show 22273-6458 HJ 5334 AB 279 6.8
Show 22286-6500 MLO9001 128 5.5 9
Show 22243-6508 HJ 5328 AB 295 9.3 22
Show 22243-6508 BAU 71 AC 262 25.3 22
Show 22237-6513 LDS 783 AB 309 83.7 27
Show 22237-6513 BAU 70 AC 60 36.0 27
Show 22237-6513 BAU 70 AD 176 48.1 27
Show 22237-6513 BAU 70 AE 239 70.8 27
Show 22231-6509 HJ 5327 128 25.4 30
Show 22247-6537 TOK 864 126 0.2 43
Show 22243-6408 TDT3511 10 0.6 54
Show 22254-6556 MLO 95 47 7.2 59
Show 22296-6555 TDT3545 54 0.5 60
Show 22177-6538 TDT3450 318 0.6 73
Show 22384-6523 HDS3215 67 0.9 75
Show 22305-6612 TDT3555 133 0.6 77
Show 22321-6609 HDS3197 356 6.4 78
Show 22336-6350 TDT3583 306 0.9 80
Show 22354-6605 HJ 5342 AB 263 7.3 83
Show 22354-6605 BAU 74 AC 85 51.3 83
Show 22141-6531 KPP1337 21 10.1 90
Show 22147-6414 UC 4689 64 12.6 93
Show 22278-6325 NZO 103 AB 232 6.8 93
Show 22278-6325 BAU 72 AC 230 35.1 93
Show 22428-6521 LDS 791 AB 292 20.7 101
Show 22428-6521 DAM 246 AC 176 7.0 101
Show 22427-6436 TDT3669 140 0.4 101
Show 22153-6351 RST3295 178 2.3 103
Show 22435-6449 TOK 351 157 178.9 104
Show 22437-6439 R 339 250 10.9 107
Show 22412-6611 TDT3653 341 0.6 113
Show 22444-6536 TDT3683 263 2.3 114
Show 22248-6652 BVD 141 183 11.6 115
Show 22460-6459 TDT3696 27 0.6 119
Show 22239-6656 HDS3174 208 1.1 120
Show 22262-6254 UC 4745 301 48.7 124
Show 22104-6608 UC 4668 338 42.7 127
Show 22446-6357 HDO 300 294 43.0 127
Show 22220-6705 DON1025 22 0.7 132
Show 22117-6628 TDT3399 269 0.5 133
Show 22331-6707 LDS 788 216 116.2 134
Show 22127-6643 UC 4683 AB 220 39.7 139
Show 22417-6316 RSS 573 112 24.2 139
Show 22375-6706 DON1035 AB 304 1.4 143
Show 22375-6706 SHY 356 AC 323 803.5 143
Show 22180-6249 I 20 AB 188 0.7 144
Show 22453-6641 KPP1677 38 12.9 151
Show 22286-6729 VIG 21 53 0.6 152
Show 22097-6319 TDT3379 176 0.6 152
Show 22116-6306 RST2192 294 0.9 153

 
 
WDS 22273-6458 : COMPONENTS
 
 
  A Ab
Ab pa=315.4°
sep=0.04"
 
B pa=291.4°
sep=3.03"
pa=291.0°
sep=2.99"
 
 
22273-6458 A
 
 
Name Del Tuc Coord arcsec 2000 222719.87-645759.0 Mag 4.49 Spectral class B9.5V (blue-white)
PmRA 69.00 PmDE 8.0 SAO 255222 HIP 110838
Tycho2 9120-01918-1 HD 212581 HR 8540 GC 31346
CP CP-65 4044 Bayer Delta Tucanae Bayer name Del Tuc
Tycho2
Tycho2 9120-01918-1 Pflag RAmdeg 336.83319647 DEmdeg -64.96635976
PmRA 68.9 PmDE 7.9 E RAmdeg 3 E DEmdeg 3
E pmRA 0.9 E pmDE 0.9 EpRAm 1991.35 EpDEm 1991.53
Num 11 Q RAmdeg 1.3 Q DEmdeg 1.7 Q pmRA 1.4
Q pmDE 1.4 BTmag 4.476 E BTmag 0.014 VTmag 4.494
E VTmag 0.009 Prox 70 TYC T HIP 110838
CCDM A RAdeg 336.83281278 DEdeg -64.96637806 EpRA 1990 1.51
EpDE 1990 1.70 E RAdeg 3.2 E DEdeg 3.2 Posflg
Corr 0.1
SAO
SAO 255222 DelFlag RA1950 PmRA1950 0.0124
DE1950 PmDE1950 0.005 Vmag 4.8 SpType B9
Double code Source 70 CatNum 31346 DM CP-65 4044
DMcomp A BDsup HD 212581 M HD 0
GC 31346 RA1950rad 5.86343705 DE1950rad -1.13833363 PmRA2000 0.0112
PmDE2000 0.003
Hipparcos
Catalog H HIP 110838 Proxy H RAhms 22 27 19.87
DEdms -64 57 59.0 Vmag 4.51 VarFlag R Vmag G
RAdeg 336.833 DEdeg -64.9664 AstroRef A Plx 12.21
CCDM 22273-6458 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual B M HIP AB
Theta 281 Rho 6.976 HD 212581 BD
CD CP CP-65 4044 Dm number -65 4044 VIred -0.01
SpType B8V R SpType Coord arcsec 2000 222719.87-645759.0
Hipparcos 2
HIP 110838 Sn 15 So 3 Nc 2
RArad 5.878841468 DErad -1.1338772223 Plx 13 PmRA 68.45
PmDE 10.06 E RArad 0.29 E DErad 0.32 E Plx 0.48
E pmRA 0.36 E pmDE 0.37 Hpmag 4.4819 E Hpmag 0.0005
SHp 0.006 VA 0 BV -0.029 E BV 0.001
VI -0.01
CCDM
Ccdm 22273-6458 RComp Comp A Note1
Note2 Discov num DRAs 2.01 DDEs 0.3
R dRAs 10 Year Theta Rho
Obs 2 Vmag 4.8 Sp B9 PmNote *
PmRA 76 PmDE -4 Dm number -65 4044 Cat1 CPD
Name2 255222 Cat2 SAO HD 212581 M HD
ADS BDS M ADS BDS N IDS IDS 22202S6529A
HIC 110838
 
 
22273-6458 Ab
 
 
Coord arcsec 2000 222719.87-645759.0 Mag 5.4 Calc delta mag 0.3 Calc coord yes
 
 
22273-6458 B
 
 
Coord arcsec 2000 222719.42-645757.9 Mag 8.73 PmRA 131.00 PmDE 3.0
Calc delta mag 3.63 Calc coord yes
CCDM
Ccdm 22273-6458 RComp Comp B Note1
Note2 Discov num HJ 5334 DRAs 0.97 DDEs 1.8
R dRAs 91 Year 1836 Theta 282 Rho 6.9
Obs 7 Vmag 9.3 Sp PmNote *
PmRA 76 PmDE -4 Dm number Cat1
Name2 255221 Cat2 SAO HD M HD
ADS BDS M ADS BDS N IDS IDS 22202S6529B
HIC 110838