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Doubles in session


Current system
20568-4452
HDS 2984


Nearby doubles
14' : 20571-4439
LDS 729

30' : 20555-4426
I 1430

46' : 20533-4519
SKF1169

48' : 21004-4519
HU 1533

49' : 21008-4429
TDT2693

52' : 20578-4402
DON 995

53' : 21011-4426
HJ 5238

57' : 21017-4431
TOK 800

69' : 20583-4345
I 1048

89' : 21050-4441
KPP3080

99' : 20545-4627
B 508

102' : 20487-4359
DON 993AB

104' : 21050-4357
UC 4373

104' : 20485-4359
DON 992

106' : 20476-4534
I 1427

107' : 20548-4636
I 1429AB

112' : 20531-4637
SKF1168

116' : 21064-4548
HU 1333

117' : 21045-4615
TOK 35

121' : 21081-4505
BVD 133

124' : 21081-4520
I 1434

127' : 21022-4300
DUN 236

127' : 20452-4428
BRT1114

130' : 21030-4643
SKF1099

136' : 20454-4554
RST1076

136' : 21092-4529
TDT2787



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

20568-4452 HDS 2984

 
 
20h 56m 47.37s -44° 51' 48.9" P.A. 239.00 sep 0.8 mag 11.68,13.68 Sp M0 dist. 49.12 pc (160.23 l.y.)
 
 
Coord 2000 20568-4452 Discov num HDS2984 Comp Coord arcsec 2000 20 56 47.37 -44 51 48.9
Date first 1991 Date last 2014 Obs 2
Pa first 231 Pa last 239.2 P.A. Now (θ) 239.2°
Sep first 0.7 Sep last 0.798 Sep. Now (ρ) 0.798"
Mag pri 11.68 Mag sec 13.68 delta mag (ΔM) 2 Spectral class M0 (red)
Pri motion ra +018 Sec motion ra
Pri motion dec +036 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Microscopium HIP 103390 Tycho2 7976-00484-3 Gaia DR2 6484305438956480512
CD CD-4514109 Distance 49.12 Distance ly 160.23
 
 
WDS 20568-4452 HDS 2984 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
HDS Hipparcos Double Star (from additional DD list) ...................
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20568-4452 HDS2984 1991 1 231 0.7 11.68 13.68 M0 205647.37-445148.9
20568-4452 HDS2984 2014 2 239 0.8 11.68 13.68 M0 205647.37-445148.9

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

 
 
WDS 20568-4452 HDS 2984 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20568-4452 HDS 2984 : MEASURES
 
 
No records found.

 
 
WDS 20568-4452 : VIRTUAL EYEPIECE
 
 

20568-4452 HDS2984A mag 11.68 Sp M0 20568-4452 HDS2984B sep 0.6 P.A. 229.90 mag 13.68 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20568-4452 : ALADIN DSS IMAGE @ 20h 56m 47.37s -44° 51' 48.9"
 
 
 
 
WDS 20568-4452 HDS 2984 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20568-4452 HDS2984 distance=0' 20571-4439 LDS 729 distance=14' 20555-4426 I 1430 distance=30' 20533-4519 SKF1169 distance=46' 21004-4519 HU 1533 distance=48' 21008-4429 TDT2693 distance=49' 20578-4402 DON 995 distance=52' 21011-4426 HJ 5238 distance=53' 21017-4431 TOK 800 distance=57' 20583-4345 I 1048 distance=69' 21050-4441 KPP3080 distance=89' 20545-4627 B 508 distance=99' 20487-4359 DON 993AB distance=102' 20487-4359 HJ 5222AC distance=102' 21050-4357 UC 4373 distance=104' 20485-4359 DON 992 distance=104' 20476-4534 I 1427 distance=106' 20548-4636 I 1429AB distance=107' 20531-4637 SKF1168 distance=112' 21064-4548 HU 1333 distance=116' 21045-4615 TOK 35 distance=117' 21081-4505 BVD 133 distance=121' 21081-4520 I 1434 distance=124' 21022-4300 DUN 236 distance=127' 20452-4428 BRT1114 distance=127' 21030-4643 SKF1099 distance=130' 20454-4554 RST1076 distance=136' 21092-4529 TDT2787 distance=136' 21015-4246 NSN 455 distance=136' 20495-4649 HU 1331 distance=140' 20441-4412 KPP1048AB distance=142' 21048-4650 NSN 454 distance=146' 20465-4639 LDS 721 distance=152' 20459-4640 RST2156 distance=158' 20561-4213 UC 4335 distance=159' 20427-4400 KPP3106 distance=160' 21043-4233 DON 999 distance=162' 20556-4204 BRT1116 distance=168' 20411-4549 SKF1166 distance=175' 20596-4746 I 1431 distance=177' 21028-4206 TDT2712 distance=178' 21099-4304 UC 4395 distance=178' 21086-4245 SYU 12 distance=181' 21050-4214 UC 4372 distance=182' 21136-4423 KPP 604 distance=182' 20536-4153 BRT1115 distance=183' 20400-4359 DON 990AB distance=188' 20400-4359 DON 990AC distance=188' 20469-4730 UC 4285 distance=189' 21050-4203 CPO 619 distance=191' 20552-4139 UC 4327 distance=194' 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 20568-4452 HDS2984 239 0.8
Show 20571-4439 LDS 729 106 220.3 14
Show 20555-4426 I 1430 29 1.4 30
Show 20533-4519 SKF1169 224 95.9 46
Show 21004-4519 HU 1533 51 4.3 48
Show 21008-4429 TDT2693 106 1.8 49
Show 20578-4402 DON 995 252 2.0 52
Show 21011-4426 HJ 5238 192 36.9 53
Show 21017-4431 TOK 800 210 0.5 57
Show 20583-4345 I 1048 137 1.6 69
Show 21050-4441 KPP3080 169 8.6 89
Show 20545-4627 B 508 281 2.3 99
Show 20487-4359 DON 993 AB 332 12.2 102
Show 20487-4359 HJ 5222 AC 271 28.6 102
Show 21050-4357 UC 4373 126 45.6 104
Show 20485-4359 DON 992 291 5.2 104
Show 20476-4534 I 1427 211 0.6 106
Show 20548-4636 I 1429 AB 147 1.1 107
Show 20531-4637 SKF1168 231 16.9 112
Show 21064-4548 HU 1333 319 1.7 116
Show 21045-4615 TOK 35 202 39.9 117
Show 21081-4505 BVD 133 246 21.1 121
Show 21081-4520 I 1434 335 0.8 124
Show 21022-4300 DUN 236 73 57.4 127
Show 20452-4428 BRT1114 65 5.6 127
Show 21030-4643 SKF1099 137 6.0 130
Show 20454-4554 RST1076 287 1.0 136
Show 21092-4529 TDT2787 77 0.5 136
Show 21015-4246 NSN 455 189 2.5 136
Show 20495-4649 HU 1331 194 0.9 140
Show 20441-4412 KPP1048 AB 183 8.4 142
Show 21048-4650 NSN 454 7 9.1 146
Show 20465-4639 LDS 721 215 6.7 152
Show 20459-4640 RST2156 245 0.6 158
Show 20561-4213 UC 4335 196 30.8 159
Show 20427-4400 KPP3106 232 2.5 160
Show 21043-4233 DON 999 263 4.6 162
Show 20556-4204 BRT1116 138 4.5 168
Show 20411-4549 SKF1166 147 20.8 175
Show 20596-4746 I 1431 0.5 177
Show 21028-4206 TDT2712 309 0.7 178
Show 21099-4304 UC 4395 141 61.2 178
Show 21086-4245 SYU 12 224 0.2 181
Show 21050-4214 UC 4372 12 13.9 182
Show 21136-4423 KPP 604 86 5.6 182
Show 20536-4153 BRT1115 339 3.5 183
Show 20400-4359 DON 990 AB 39 0.3 188
Show 20400-4359 DON 990 AC 292 7.0 188
Show 20469-4730 UC 4285 90 20.0 189
Show 21050-4203 CPO 619 252 5.6 191
Show 20552-4139 UC 4327 96 77.2 194

 
 
WDS 20568-4452 : COMPONENTS
 
 
  A
B pa=229.9°
sep=0.63"
 
 
20568-4452 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 205647.37-445148.9 Mag 11.68 Spectral class M0 (red)
PmRA 18.00 PmDE 36.0 HIP 103390 Tycho2 7976-00484-3
CD CD-4514109
Tycho2
Tycho2 7976-00484-3 Pflag RAmdeg 314.19742014 DEmdeg -44.86349976
PmRA 6.0 PmDE 31.8 E RAmdeg 71 E DEmdeg 87
E pmRA 2.5 E pmDE 2.4 EpRAm 1981.19 EpDEm 1972.36
Num 3 Q RAmdeg 0.6 Q DEmdeg 0.9 Q pmRA 0.6
Q pmDE 0.9 BTmag 12.927 E BTmag 0.287 VTmag 11.610
E VTmag 0.129 Prox 999 TYC HIP 103390
CCDM AB RAdeg 314.19740139 DEdeg -44.86357167 EpRA 1990 1.86
EpDE 1990 1.86 E RAdeg 75.9 E DEdeg 99.4 Posflg
Corr 0.0
Hipparcos
Catalog H HIP 103390 Proxy H RAhms 20 56 47.37
DEdms -44 51 48.9 Vmag 11.42 VarFlag R Vmag H
RAdeg 314.197 DEdeg -44.8636 AstroRef A Plx 17
CCDM 20568-4452 N CCDM H Nsys 1 Ncomp 2
MultFlag C Source Qual D M HIP AB
Theta 231 Rho 0.685 HD BD
CD CD-4514109 CP Dm number -4514109 VIred 1.73
SpType M0 R SpType Coord arcsec 2000 205647.37-445148.9
Hipparcos 2
HIP 103390 Sn 15 So 3 Nc 2
RArad 5.4837788671 DErad -0.7830173503 Plx 20.36 PmRA 11.55
PmDE 37.82 E RArad 3.69 E DErad 2.68 E Plx 4.74
E pmRA 3.87 E pmDE 2.14 Hpmag 11.5218 E Hpmag 0.0075
SHp 0.057 VA 0 BV 1.594 E BV 0.082
VI 1.73
CCDM
Ccdm 20568-4452 RComp Comp A Note1
Note2 Discov num DRAs -0.61 DDEs 11.4
R dRAs 82 Year Theta Rho
Obs 2 Vmag 11.7 Sp M0 PmNote *
PmRA 18 PmDE 36 Dm number -4514109 Cat1 CD
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC 103390
 
 
20568-4452 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 205647.32-445149.3 Mag 13.68 Calc delta mag 2
Calc coord yes
CCDM
Ccdm 20568-4452 RComp Comp B Note1
Note2 Discov num HDS DRAs -0.66 DDEs 11.0
R dRAs 82 Year 1991 Theta 231 Rho 0.7
Obs 1 Vmag 13.7 Sp PmNote *
PmRA 18 PmDE 36 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC 103390