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Current system
22227-4557
I 135
Pi1 Gru


Nearby doubles
5' : 22231-4556
I 382

42' : 22252-4630
LDS 784

48' : 22268-4537
HU 1334

50' : 22257-4518
HJ 5335

54' : 22181-4534
RST1127

58' : 22174-4613
UC 4705

61' : 22259-4507
I 136

73' : 22208-4447
TDT3474

75' : 22299-4604
B 562

79' : 22153-4546
UC 4697

80' : 22273-4453
HJ 5337

83' : 22211-4718
RST1131

86' : 22287-4459
TDT3537

86' : 22189-4713
BRT1129

94' : 22317-4551
B 563

95' : 22281-4441
CPO 92

98' : 22318-4618
HJ 5341

100' : 22139-4521
LDS 776

106' : 22320-4515
SKF 383

110' : 22296-4435
UC 4752

114' : 22124-4522
UC 4679

121' : 22116-4528
SKF1104

123' : 22302-4423
HDS3189

124' : 22139-4722
LDS 777

125' : 22108-4559
SKF1103

132' : 22152-4412
RSS 569AB



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.

22227-4557 I 135 (Pi1 Gru)

 
 
22h 22m 44.18s -45° 56' 52.5" P.A. 200.00 sep 2.5 mag 6.50,10.70 Sp S5 dist. 163.13 pc (532.13 l.y.)
 
 
Coord 2000 22227-4557 Discov num I   135 Comp Coord arcsec 2000 22 22 44.18 -45 56 52.5
Date first 1896 Date last 1989 Obs 14
Pa first 190 Pa last 200.4 P.A. Now (θ) 200.4°
Sep first 2.5 Sep last 2.45 Sep. Now (ρ) 2.45"
Mag pri 6.50 Mag sec 10.70 delta mag (ΔM) 4.2 Spectral class S5 (deep red)
Pri motion ra +037 Sec motion ra
Pri motion dec -016 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Pi1 Gru Constellation Grus SAO 231105 HIP 110478
Tycho2 8439-00392-1 Gaia DR2 6518817665841827200 HD 212087 HR 8521
GC 31273 CD CD-4614292 CP CP-4610395 Bayer Pi 1 Gruis
Bayer name Pi1 Gru Flamsteed 161 Gruis Flamsteed name 161 Gru Distance 163.13
Distance ly 532.13 Bayer greek π1 Gru
 
 
WDS 22227-4557 I 135 (Pi1 Gru) : NOTES
 
 
discov_num notes refcode
I 135 pi 1 Gru = 161 Gru. A is an irregular variable.
 
 
REFERENCES
 
 
refcode metd author reference
I__1895 Ma - Innes, R.T.A. 1895MNRAS..55..312I
I__1895 +Mb MNRAS 55, 312,544, 1895
I__1896 Mb - Innes, R.T.A. 1896JBAA....6..261I
I__1896 J. British Astron. Assoc. 6, 261, 1896
I__1897a Ma - Innes, R.T.A. 1897MNRAS..57..533I
I__1897a MNRAS 57, 533, 1897 (data also in I__1897b, 1897AN....143..171I
I__1897a I__1897c) 1897AN....144...89I
I__1897b Ma - Innes, R.T.A. 1897AN....143..171I
I__1897b AN 143, 171, 1897
I__1897c Ma - Innes, R.T.A. 1897AN....144...89I
I__1897c AN 144, 89, 1897
I__1897d Ma - Innes, R.T.A. 1897AN....145...93I
I__1897d AN 145, 93, 1897
I__1897e Ma - Innes, R.T.A. 1897MNRAS..57..456I
I__1897e +Mb MNRAS 57, 456, 1897
I__1897f Ma - Innes, R.T.A. 1897MNRAS..58...48I
I__1897f MNRAS 58, 48, 1897
I__1897g Ma - Innes, R.T.A. 1897AJ.....18...65I
I__1897g AJ 18, 65, 1897
I__1898 Ma - Innes, R.T.A. 1898AN....146..369I
I__1898 AN 146, 369, 1898
I__1899 Ma - Innes, R.T.A. 1899QB4.C22v2......
I__1899 Ann. Cape Obs. 2, Pt.2, 1899 (Innes Reference Catalog)
I__1901 Ma - Innes, R.T.A. 1901MNRAS..61..575.
I__1901 MNRAS 61, 575, 1901 (data also in I__1905) 1905AnCap...2....4I
I__1902a Ma - Innes, R.T.A. 1902MNRAS..62..470I
I__1902a MNRAS 62, 470, 1902 (data also in I__1905) 1905AnCap...2....4I
I__1902b Ma - Innes, R.T.A. 1902MNRAS..63...76I
I__1902b MNRAS 63, 76, 1902 (some data also in I__1905) 1905AnCap...2....4I
I__1903 - Innes, R.T.A. 1903MNRAS..64..130I
I__1903 MNRAS 64, 130, 1903 (data also in I__1905) 1905AnCap...2....4I
I__1903b Ma - Innes, R.T.A. 1903Obs....26..285I
I__1903b Obs 26, 285, 1903 (some data also in I__1905) 1905AnCap...2....4I
I__1905 Ma - Innes, R.T.A. 1905AnCap...2....4I
I__1905 Ann. Cape Obs. 2, Pt.4, 1905
I__1907 Ma - Innes, R.T.A. 1907Obs....30...61I
I__1907 Obs 30, 61, 1907
I__1908 - Innes, R.T.A. 1908Obs....31..289I
I__1908 Obs 31, 289, 1908 (measures also in I__1909)
I__1909 Ma - Innes, R.T.A. .
I__1909 Transvaal Obs. Circ. 1, 1, 1909
I__1910 Ma - Innes, R.T.A. .
I__1910 Transvaal Obs. Circ. 1, 21, 1910
I__1911 Ma - Innes, R.T.A. .
I__1911 Transvaal Obs. Circ. 1, 61, 1911
I__1912 Ma - Innes, R.T.A. .
I__1912 Transvaal Obs. Circ. 1, 111, 1912
I__1913a Ma - Innes, R.T.A. 1913CiUO....4...31.
I__1913a Union Obs. Johannesburg Circ. 4, 31, 1913
I__1913b Ma - Innes, R.T.A. (measure by Simpkins, R.P.) 1913CiUO....4...31.
I__1913b Union Obs. Johannesburg Circ. 4, 31, 1913
I__1914 Ma - Innes, R.T.A. 1914CiUO...14...97.
I__1914 Union Obs. Johannesburg Circ. 14, 97, 1914
I__1915a Ma - Innes, R.T.A. 1915CiUO...24..185.
I__1915a Union Obs. Johannesburg Circ. 24, 185, 1915
I__1915b Ma - Innes, R.T.A. (measure by Cox, G.W.) 1915CiUO...24..185.
I__1915b Union Obs. Johannesburg Circ. 24, 185, 1915
I__1915c Ma - Innes, R.T.A. (measure by Johnson, E.L.) 1915CiUO...24..185.
I__1915c Union Obs. Johannesburg Circ. 24, 185, 1915
I__1915d Ma - Innes, R.T.A. (measure by Simpkins, R.P.) 1915CiUO...24..185.
I__1915d Union Obs. Johannesburg Circ. 24, 185, 1915
I__1915e - Innes, R.T.A. 1915Obs....38..221I
I__1915e Obs 38, 221, 1915 (measures also in I__1916) 1916CiUO...33..249I
I__1915f - Innes, R.T.A. 1915Obs....38..333I
I__1915f Obs 38, 333, 1915 (measures also in I__1915) 1915CiUO...24..185I
I__1916a Ma - Innes, R.T.A. 1916CiUO...33..249I
I__1916a Union Obs. Johannesburg Circ. 33, 249, 1916
I__1916b Ma - Innes, R.T.A. (measure by Simpkins, R.P.) 1916CiUO...33..249I
I__1916b Union Obs. Johannesburg Circ. 33, 249, 1916
I__1916c Ma - Innes, R.T.A. (measure by van der Spuy, K.) 1916CiUO...33..249I
I__1916c Union Obs. Johannesburg Circ. 33, 249, 1916
I__1917a Ma - Innes, R.T.A. 1917CiUO...37..285I
I__1917a Union Obs. Johannesburg Circ. 37, 285, 1917
I__1917b Ma - Innes, R.T.A. (measure by Johnson, E.L.) 1917CiUO...37..285I
I__1917b Union Obs. Johannesburg Circ. 37, 285, 1917
I__1917c Ma - Innes, R.T.A. (measure by van der Spuy, K.) 1917CiUO...37..285I
I__1917c Union Obs. Johannesburg Circ. 37, 285, 1917
I__1917d Ma - Innes, R.T.A. (measure by Worssell, W.M.) 1917CiUO...37..285I
I__1917d Union Obs. Johannesburg Circ. 37, 285, 1917
I__1918 Ma - Innes, R.T.A. 1918CiUO...41..339I
I__1918 Union Obs. Johannesburg Circ. 41, 339, 1918
I__1927a Ma - Innes, R.T.A. 1927sdsc.book.....I
I__1927a +Po Southern Double Star Cat. 1927
I__1927b Ma - Innes, R.T.A. & van den Bos, W.H. 1927sdsc.book.....I
I__1927b Southern Double Star Cat. 1927
I__1932A Ma - Innes, R.T.A. 1932QB821.A43......
I__1932A cited in ADS (Aitken Double Star Cat.), 1932
I__1948a Ma - Innes, R.T.A. 1948CiUO..106..193I
I__1948a +Po Union Obs. Johannesburg Circ. 106, 193, 1948
I__1948b Ma - Innes, R.T.A. (measure by Simpkins, R.P.) 1948CiUO..106..193I
I__1948b Union Obs. Johannesburg Circ. 106, 193, 1948
I__9999 Ma - Innes, R.T.A. ...................
I__9999 +Mb Unpublished, manuscript or reference not found.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
22227-4557 I 135 1975 13 201 2.8 6.50 10.70 S5 N 222244.18-455652.5
22227-4557 I 135 1989 14 200 2.5 6.50 10.70 S5 N 222244.18-455652.5

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

 
 
WDS 22227-4557 I 135 (Pi1 Gru) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 22227-4557 I 135 (Pi1 Gru) : MEASURES
 
 
No records found.

 
 
WDS 22227-4557 (Pi1 Gru) : VIRTUAL EYEPIECE
 
 

22227-4557 I 135A mag 6.5 Sp S5 22227-4557 I 135B sep 2.4 P.A. 194.50 mag 10.7 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 22227-4557 (Pi1 Gru) : ALADIN DSS IMAGE @ 22h 22m 44.18s -45° 56' 52.5"
 
 
 
 
WDS 22227-4557 I 135 (Pi1 Gru) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

22227-4557 I 135 distance=0' 22231-4556 I 382 distance=5' 22252-4630 LDS 784 distance=42' 22268-4537 HU 1334 distance=48' 22257-4518 HJ 5335 distance=50' 22181-4534 RST1127 distance=54' 22174-4613 UC 4705 distance=58' 22259-4507 I 136 distance=61' 22208-4447 TDT3474 distance=73' 22299-4604 B 562 distance=75' 22153-4546 UC 4697 distance=79' 22273-4453 HJ 5337 distance=80' 22211-4718 RST1131 distance=83' 22287-4459 TDT3537 distance=86' 22189-4713 BRT1129 distance=86' 22317-4551 B 563 distance=94' 22281-4441 CPO 92 distance=95' 22318-4618 HJ 5341 distance=98' 22139-4521 LDS 776 distance=100' 22320-4515 SKF 383 distance=106' 22296-4435 UC 4752 distance=110' 22124-4522 UC 4679 distance=114' 22116-4528 SKF1104 distance=121' 22302-4423 HDS3189 distance=123' 22139-4722 LDS 777 distance=124' 22108-4559 SKF1103 distance=125' 22152-4412 RSS 569AB distance=132' 22167-4801 TSN 202 distance=139' 22130-4733 CPO 630 distance=140' 22133-4420 BRT1128 distance=140' 22239-4818 UC 4733 distance=142' 22085-4624 LDS 774 distance=151' 22268-4822 SKF1109 distance=151' 22298-4345 DUN 239 distance=152' 22369-4525 TDT3620 distance=152' 22234-4324 HDS3173 distance=153' 22374-4550 SKF 384AB distance=153' 22374-4550 SKF 384Aa,Ab distance=153' 22104-4723 TDT3386CE distance=154' 22346-4736 I 1456 distance=158' 22082-4658 RST5483 (Alnair) distance=162' 22293-4330 I 1054 distance=163' 22069-4616 UC 4653 distance=167' 22086-4720 UC 4661 distance=168' 22294-4830 HDS3186 distance=168' 22323-4814 UC 4762 distance=169' 22386-4633 UC 4783 distance=169' 22299-4831 RST1134 distance=171' 22221-4305 DON1029 distance=172' 22387-4645 LDS 790 distance=173' 22302-4321 UC 4755 distance=175' 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 22227-4557 I 135 200 2.5
Show 22231-4556 I 382 223 5.2 5
Show 22252-4630 LDS 784 8 142.2 42
Show 22268-4537 HU 1334 249 0.3 48
Show 22257-4518 HJ 5335 56 9.9 50
Show 22181-4534 RST1127 67 1.2 54
Show 22174-4613 UC 4705 42 30.0 58
Show 22259-4507 I 136 281 2.2 61
Show 22208-4447 TDT3474 89 0.6 73
Show 22299-4604 B 562 4.3 75
Show 22153-4546 UC 4697 304 12.6 79
Show 22273-4453 HJ 5337 25 12.5 80
Show 22211-4718 RST1131 151 1.7 83
Show 22287-4459 TDT3537 70 0.6 86
Show 22189-4713 BRT1129 258 4.1 86
Show 22317-4551 B 563 315 1.3 94
Show 22281-4441 CPO 92 288 4.3 95
Show 22318-4618 HJ 5341 92 5.1 98
Show 22139-4521 LDS 776 108 29.8 100
Show 22320-4515 SKF 383 177 6.1 106
Show 22296-4435 UC 4752 330 25.6 110
Show 22124-4522 UC 4679 131 45.8 114
Show 22116-4528 SKF1104 243 2.1 121
Show 22302-4423 HDS3189 331 1.0 123
Show 22139-4722 LDS 777 307 10.5 124
Show 22108-4559 SKF1103 258 10.0 125
Show 22152-4412 RSS 569 AB 98 55.0 132
Show 22167-4801 TSN 202 225 0.2 139
Show 22130-4733 CPO 630 118 17.0 140
Show 22133-4420 BRT1128 159 4.8 140
Show 22239-4818 UC 4733 223 13.6 142
Show 22085-4624 LDS 774 52 5.7 151
Show 22268-4822 SKF1109 45 175.2 151
Show 22298-4345 DUN 239 211 60.7 152
Show 22369-4525 TDT3620 104 0.5 152
Show 22234-4324 HDS3173 335 0.1 153
Show 22374-4550 SKF 384 AB 349 6.9 153
Show 22374-4550 SKF 384 Aa,Ab 12 0.3 153
Show 22104-4723 TDT3386 CE 36 0.4 154
Show 22346-4736 I 1456 204 1.4 158
Show Alnair 22082-4658 RST5483 155 17.0 162
Show 22293-4330 I 1054 228 5.6 163
Show 22069-4616 UC 4653 257 11.1 167
Show 22086-4720 UC 4661 253 46.1 168
Show 22294-4830 HDS3186 125 0.5 168
Show 22323-4814 UC 4762 282 10.1 169
Show 22386-4633 UC 4783 188 17.6 169
Show 22299-4831 RST1134 61 1.1 171
Show 22221-4305 DON1029 237 0.4 172
Show 22387-4645 LDS 790 203 12.3 173
Show 22302-4321 UC 4755 93 58.1 175

 
 
WDS 22227-4557 : COMPONENTS
 
 
  A
B pa=194.5°
sep=2.37"
 
 
22227-4557 A
 
 
Componente originario normalizzato AB Name Pi1 Gru Coord arcsec 2000 222244.18-455652.5 Mag 6.5
Spectral class S5 (deep red) PmRA 37.00 PmDE -16.0 SAO 231105
HIP 110478 Tycho2 8439-00392-1 HD 212087 HR 8521
GC 31273 CD CD-4614292 CP CP-4610395 Bayer Pi 1 Gruis
Bayer name Pi1 Gru
Tycho2
Tycho2 8439-00392-1 Pflag RAmdeg 335.68420461 DEmdeg -45.94795799
PmRA 33.4 PmDE -17.7 E RAmdeg 4 E DEmdeg 4
E pmRA 1.1 E pmDE 1.2 EpRAm 1991.40 EpDEm 1991.38
Num 11 Q RAmdeg 1.8 Q DEmdeg 1.2 Q pmRA 1.6
Q pmDE 1.2 BTmag 9.159 E BTmag 0.018 VTmag 6.410
E VTmag 0.010 Prox 999 TYC T HIP 110478
CCDM RAdeg 335.68409444 DEdeg -45.94791694 EpRA 1990 1.75
EpDE 1990 1.63 E RAdeg 3.9 E DEdeg 4.4 Posflg
Corr 0.1
SAO
SAO 231105 DelFlag RA1950 PmRA1950 0.0006
DE1950 PmDE1950 -0.007 Vmag 6.6 SpType S
Double code Source 70 CatNum 31273 DM CD-4614292
DMcomp BDsup HD 212087 M HD 0
GC 31273 RA1950rad 5.84548083 DE1950rad -0.80635352 PmRA2000 0.0006
PmDE2000 -0.012
Hipparcos
Catalog H HIP 110478 Proxy RAhms 22 22 44.18
DEdms -45 56 52.5 Vmag 6.42 VarFlag 3 R Vmag H
RAdeg 335.684 DEdeg -45.9479 AstroRef * Plx 6.54
CCDM 22227-4557 N CCDM I Nsys 1 Ncomp 1
MultFlag V Source Qual M HIP
Theta Rho HD 212087 BD
CD CD-4614292 CP CP-4610395 Dm number -4614292 VIred 6.51
SpType S5,7: R SpType Coord arcsec 2000 222244.18-455652.5
Hipparcos 2
HIP 110478 Sn 5 So 5 Nc 1
RArad 5.858792633 DErad -0.8019424559 Plx 6.13 PmRA 28.48
PmDE -12.14 E RArad 0.64 E DErad 0.49 E Plx 0.76
E pmRA 0.94 E pmDE 0.6 Hpmag 5.4957 E Hpmag 0.0119
SHp 0.256 VA 2 BV 2.231 E BV 0.011
VI 4.65
CCDM
Ccdm 22227-4557 RComp Comp A Note1
Note2 Discov num DRAs 2.20 DDEs 7.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 6.5 Sp S PmNote *
PmRA 32 PmDE -9 Dm number -4614292 Cat1 CD
Name2 231105 Cat2 SAO HD 212087 M HD
ADS BDS M ADS BDS N IDS IDS 22166S4627A
HIC 110478
 
 
22227-4557 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 222244.12-455654.8 Mag 10.7 Calc delta mag 4.2
Calc coord yes
CCDM
Ccdm 22227-4557 RComp Comp B Note1
Note2 Discov num I 135 DRAs DDEs
R dRAs Year 1900 Theta 201 Rho 2.7
Obs 8 Vmag 10.7 Sp G0 PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 22166S4627B
HIC 110478