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Current system
18420-5313
UC 3644


Nearby doubles
19' : 18436-5326
TDT1020

25' : 18434-5252
HJ 5055

40' : 18378-5324
FIN 268

48' : 18448-5354
HRG 139AB

54' : 18455-5356
HJ 5057

55' : 18363-5253
RSS 485

65' : 18455-5216
TOI1122

70' : 18363-5226
UC 3625

71' : 18419-5202
UC 3640

77' : 18493-5354
SKF 371

81' : 18459-5201
RST1000

81' : 18505-5247
UC 3693

86' : 18376-5158
I 1373

88' : 18329-5244
SKF1148

94' : 18502-5412
UC 3691

97' : 18436-5138
RST5451AB

98' : 18500-5207
HDS2669

98' : 18516-5229
LDS 655

99' : 18520-5356
B 408

100' : 18494-5428
UC 3684

101' : 18450-5450
B 400

104' : 18381-5450
KPP1216

110' : 18393-5126
RST 995

111' : 18520-5418
TOK 325AB

114' : 18462-5500
B 402

114' : 18345-5445
SWR 248



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

18420-5313 UC 3644

 
 
18h 42m 01.84s -53° 12' 42.8" P.A. 281.00 sep 18.4 mag 14.50,15.70
 
 
Coord 2000 18420-5313 Discov num UC 3644 Comp Coord arcsec 2000 18 42 01.84 -53 12 42.8
Date first 1998 Date last 2015 Obs 3
Pa first 284 Pa last 280.9 P.A. Now (θ) 280.9°
Sep first 18.5 Sep last 18.404 Sep. Now (ρ) 18.404"
Mag pri 14.50 Mag sec 15.70 delta mag (ΔM) 1.2 Spectral class
Pri motion ra -012 Sec motion ra +007
Pri motion dec +062 Sec motion dec +050
Notes V R (Proper motion indicates physical, Red magnitudes)
rPM=0.356
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Telescopium Gaia DR2 6651232847611229696
 
 
WDS 18420-5313 UC 3644 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
UC USNO CCD Astrographic Catalog (UCAC1, UCAC2, UCAC3, UCAC4) ...................
UC_2013a Eu j Zacharias, N., Finch, C.T., Girard, T.M., Henden, A., Bartlett, J.L., Monet, D.G., 2013AJ....145...44Z
UC_2013a & Zacharias, M.I. (UCAC4 Catalog)
UC_2013a AJ 145, 44, 2013
UC_2013b Eu j Hartkopf, W.I., Mason, B.D., Finch, C.T., Zacharias, N., Wycoff, G.L., & Hsu, D. 2013AJ....146...76H
UC_2013b AJ 146, 76, 2013 (UC 301 - 5058)
UC_2013b (Relative astrometry is derived from individual measurements, not precessed means.
UC_2013b UCAC aperture magnitudes are listed, unless the duplicity flag indicates a blended
UC_2013b image (a flag value of 30 or higher). Model fit magnitudes are given for both
UC_2013b components if either has such a flag. Model fit magnitudes are indicated by the
UC_2013b letter "f" following the filter information.
UC_2013b APASS photometry extracted from UCAC4 catalog is listed under reference AAV2012.
UC_2013b Due to aperture method used, APASS photometry is only included for pairs wider
UC_2013b than 10" (Henden, private comm.) Photometry for pairs wider than 10" which showed
UC_2013b identical values for both components in all filters were removed, as well.
UC_2015 Eu - Zacharias, N., Finch, C.T., Subasavage, J.P., Bredthauer, G., Crockett, C., 2015AJ....150..101Z
UC_2015 DiVittorio, M., Ferguson, E., Harris, F., Harris, H.C., Hendon, A., Kilian, C.,
UC_2015 Munn, J., Rafferty, T., Rhodes, A., Schultheis, M., Tilleman, T., & Wieder, G.
UC_2015 AJ 150, 101, 2015
UC_9999 Eu - temporary UCAC files ...................
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18420-5313 UC 3644 1999 2 280 18.3 14.50 15.70 V 184201.84-531242.8
18420-5313 UC 3644 2000 2 284 18.5 14.50 15.70 V 184201.84-531242.8
18420-5313 UC 3644 2010 3 287 18.3 14.50 15.70 V R 184201.84-531242.8
18420-5313 UC 3644 2015 3 281 18.4 14.50 15.70 V R 184201.84-531242.8

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

 
 
WDS 18420-5313 UC 3644 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18420-5313 UC 3644 : MEASURES
 
 
No records found.

 
 
WDS 18420-5313 : VIRTUAL EYEPIECE
 
 

18420-5313 UC 3644A mag 14.5 18420-5313 UC 3644B sep 11.4 P.A. 287.80 mag 15.7 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 18420-5313 : ALADIN DSS IMAGE @ 18h 42m 01.84s -53° 12' 42.8"
 
 
 
 
WDS 18420-5313 UC 3644 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18420-5313 UC 3644 distance=0' 18436-5326 TDT1020 distance=19' 18434-5252 HJ 5055 distance=25' 18378-5324 FIN 268 distance=40' 18448-5354 HRG 139AB distance=48' 18455-5356 HJ 5057 distance=54' 18363-5253 RSS 485 distance=55' 18455-5216 TOI1122 distance=65' 18363-5226 UC 3625 distance=70' 18419-5202 UC 3640 distance=71' 18493-5354 SKF 371 distance=77' 18459-5201 RST1000 distance=81' 18505-5247 UC 3693 distance=81' 18376-5158 I 1373 distance=86' 18329-5244 SKF1148 distance=88' 18502-5412 UC 3691 distance=94' 18436-5138 RST5451AB distance=97' 18436-5138 RST5451Ba,Bb distance=97' 18500-5207 HDS2669 distance=98' 18516-5229 LDS 655 distance=98' 18520-5356 B 408 distance=99' 18494-5428 UC 3684 distance=100' 18450-5450 B 400 distance=101' 18381-5450 KPP1216 distance=104' 18393-5126 RST 995 distance=110' 18520-5418 TOK 325AB distance=111' 18520-5418 TOK 325Aa,Ab distance=111' 18462-5500 B 402 distance=114' 18345-5445 SWR 248 distance=114' 18294-5309 UC 3590 distance=114' 18450-5122 RST5452 distance=115' 18527-5210 RST1005 distance=117' 18554-5316 UC 3724 distance=120' 18349-5455 UC 3618 distance=121' 18417-5514 SWR 251 distance=121' 18552-5246 UC 3723 distance=122' 18541-5421 HJ 5068 distance=128' 18352-5120 HU 1607AB distance=129' 18565-5313 SWR 257 distance=130' 18278-5252 B 1361AB distance=131' 18278-5252 SIN 110AC distance=131' 18275-5317 RST3179 distance=131' 18435-5103 I 1378 distance=131' 18282-5230 B 1362 distance=133' 18571-5315 TDT1144 distance=136' 18562-5226 TDT1135 distance=137' 18276-5402 B 390 distance=138' 18472-5103 I 1383AB distance=138' 18472-5103 I 1383AC distance=138' 18488-5108 DAW 223 distance=140' 18336-5512 UC 3609 distance=141' 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 18420-5313 UC 3644 281 18.4
Show 18436-5326 TDT1020 85 0.7 19
Show 18434-5252 HJ 5055 75 7.6 25
Show 18378-5324 FIN 268 225 0.3 40
Show 18448-5354 HRG 139 AB 311 3.4 48
Show 18455-5356 HJ 5057 90 11.6 54
Show 18363-5253 RSS 485 192 8.0 55
Show 18455-5216 TOI1122 35 0.5 65
Show 18363-5226 UC 3625 270 17.5 70
Show 18419-5202 UC 3640 317 8.2 71
Show 18493-5354 SKF 371 269 8.4 77
Show 18459-5201 RST1000 74 2.0 81
Show 18505-5247 UC 3693 94 10.7 81
Show 18376-5158 I 1373 249 5.2 86
Show 18329-5244 SKF1148 288 69.1 88
Show 18502-5412 UC 3691 88 106.9 94
Show 18436-5138 RST5451 AB 305 0.8 97
Show 18436-5138 RST5451 Ba,Bb 242 0.2 97
Show 18500-5207 HDS2669 182 0.6 98
Show 18516-5229 LDS 655 330 15.7 98
Show 18520-5356 B 408 49 2.1 99
Show 18494-5428 UC 3684 96 65.5 100
Show 18450-5450 B 400 141 0.3 101
Show 18381-5450 KPP1216 91 9.4 104
Show 18393-5126 RST 995 282 1.4 110
Show 18520-5418 TOK 325 AB 32 146.0 111
Show 18520-5418 TOK 325 Aa,Ab 242 0.1 111
Show 18462-5500 B 402 255 0.5 114
Show 18345-5445 SWR 248 125 4.8 114
Show 18294-5309 UC 3590 349 34.0 114
Show 18450-5122 RST5452 259 0.1 115
Show 18527-5210 RST1005 137 1.7 117
Show 18554-5316 UC 3724 127 6.9 120
Show 18349-5455 UC 3618 202 32.1 121
Show 18417-5514 SWR 251 104 6.9 121
Show 18552-5246 UC 3723 95 17.0 122
Show 18541-5421 HJ 5068 10 10.5 128
Show 18352-5120 HU 1607 AB 264 2.1 129
Show 18565-5313 SWR 257 296 6.5 130
Show 18278-5252 B 1361 AB 62 5.6 131
Show 18278-5252 SIN 110 AC 164 19.6 131
Show 18275-5317 RST3179 190 0.4 131
Show 18435-5103 I 1378 28 4.3 131
Show 18282-5230 B 1362 94 0.1 133
Show 18571-5315 TDT1144 124 0.5 136
Show 18562-5226 TDT1135 323 0.9 137
Show 18276-5402 B 390 8 1.4 138
Show 18472-5103 I 1383 AB 247 0.6 138
Show 18472-5103 I 1383 AC 334 34.8 138
Show 18488-5108 DAW 223 1 3.6 140
Show 18336-5512 UC 3609 27 9.5 141

 
 
WDS 18420-5313 : COMPONENTS
 
 
  A
B pa=287.8°
sep=11.37"
 
 
18420-5313 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 184201.84-531242.8 Mag 14.5 PmRA -12.00
PmDE 62.0
 
 
18420-5313 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 184200.64-531239.3 Mag 15.7 PmRA 7.00
PmDE 50.0 Calc delta mag 1.2 Calc coord yes