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Doubles in session


Current system
20377-4236
UC 4238


Nearby doubles
16' : 20381-4251
UC 4240

22' : 20389-4253
AOT 88

25' : 20356-4243
AOT 83

26' : 20355-4241
AOT 82

30' : 20370-4208
AOT 86

32' : 20351-4226
AOT 81

34' : 20348-4244
AOT 80

35' : 20374-4202
CPO 89

38' : 20409-4224
HJ 5211AB

41' : 20344-4221
DON 988AB

42' : 20345-4216
NSN 481

47' : 20417-4253
TDT2475

53' : 20360-4147
AOT 84

68' : 20392-4131
KPP1483

71' : 20391-4345
LDS 717

87' : 20400-4359
DON 990AB

92' : 20400-4109
UC 4250

96' : 20331-4116
BRT1111

100' : 20427-4400
KPP3106

104' : 20337-4104
B 490

108' : 20280-4237
RSS 36

110' : 20385-4425
I 1424

119' : 20441-4412
KPP1048AB

122' : 20319-4054
GLI 259AB

122' : 20339-4431
I 127AB

129' : 20372-4445
TOK 369



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.

20377-4236 UC 4238

 
 
20h 37m 44.79s -42° 36' 18.1" P.A. 182.00 sep 83.6 mag 15.40,15.90
 
 
Coord 2000 20377-4236 Discov num UC 4238 Comp Coord arcsec 2000 20 37 44.79 -42 36 18.1
Date first 1998 Date last 2015 Obs 4
Pa first 182 Pa last 181.6 P.A. Now (θ) 181.6°
Sep first 89.1 Sep last 83.632 Sep. Now (ρ) 83.632"
Mag pri 15.40 Mag sec 15.90 delta mag (ΔM) 0.5 Spectral class
Pri motion ra +013 Sec motion ra +004
Pri motion dec -092 Sec motion dec -109
Notes V R (Proper motion indicates physical, Red magnitudes)
rPM=0.176 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Microscopium Gaia DR2 6676503644903797888
 
 
WDS 20377-4236 UC 4238 : 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
20377-4236 UC 4238 1999 2 182 88.8 15.40 15.90 V 203744.79-423618.1
20377-4236 UC 4238 2000 2 182 89.2 15.40 15.90 V 203744.79-423618.1
20377-4236 UC 4238 2010 3 182 84.5 15.40 15.90 V R 203744.79-423618.1
20377-4236 UC 4238 2015 4 182 83.6 15.40 15.90 V R 203744.79-423618.1

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

 
 
WDS 20377-4236 UC 4238 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20377-4236 UC 4238 : MEASURES
 
 
No records found.

 
 
WDS 20377-4236 : VIRTUAL EYEPIECE
 
 

20377-4236 UC 4238A mag 15.4 20377-4236 UC 4238B sep 83.6 P.A. 181.20 mag 15.9 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 20377-4236 : ALADIN DSS IMAGE @ 20h 37m 44.79s -42° 36' 18.1"
 
 
 
 
WDS 20377-4236 UC 4238 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20377-4236 UC 4238 distance=0' 20381-4251 UC 4240 distance=16' 20389-4253 AOT 88 distance=22' 20356-4243 AOT 83 distance=25' 20355-4241 AOT 82 distance=26' 20370-4208 AOT 86 distance=30' 20351-4226 AOT 81 distance=32' 20348-4244 AOT 80 distance=34' 20374-4202 CPO 89 distance=35' 20409-4224 I 1121BC distance=38' 20409-4224 HJ 5211AB distance=38' 20344-4221 DON 988AB distance=41' 20344-4221 DON 988AB,C distance=41' 20345-4216 NSN 481 distance=42' 20417-4253 TDT2475 distance=47' 20360-4147 AOT 84 distance=53' 20392-4131 KPP1483 distance=68' 20391-4345 LDS 717 distance=71' 20400-4359 DON 990AB distance=87' 20400-4359 DON 990AC distance=87' 20400-4109 UC 4250 distance=92' 20331-4116 BRT1111 distance=96' 20427-4400 KPP3106 distance=100' 20337-4104 B 490 distance=104' 20280-4237 RSS 36 distance=108' 20385-4425 I 1424 distance=110' 20441-4412 KPP1048AB distance=119' 20339-4431 I 127BC distance=122' 20319-4054 GLI 259AB distance=122' 20319-4054 I 1627AC distance=122' 20339-4431 I 127AB distance=122' 20339-4431 DAM 325AD distance=122' 20339-4431 DAM 325AE distance=122' 20372-4445 TOK 369 distance=129' 20289-4402 HJ 5201 distance=130' 20338-4033 JC 18AB distance=131' 20338-4033 JC 18AC distance=131' 20267-4334 I 1420 distance=134' 20452-4428 BRT1114 distance=138' 20353-4017 SEE 421AB distance=142' 20353-4017 KPP4396AC distance=142' 20276-4110 UC 4190 distance=143' 20485-4359 DON 992 distance=144' 20487-4359 DON 993AB distance=146' 20487-4359 HJ 5222AC distance=146' 20336-4457 KPP 626 distance=148' 20404-4012 WG 260 distance=149' 20240-4231 DON 984 distance=152' 20239-4225 BU 763AB distance=154' 20239-4225 I 1626AC distance=154' 20239-4225 SEE 511AD distance=154' 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 20377-4236 UC 4238 182 83.6
Show 20381-4251 UC 4240 351 45.0 16
Show 20389-4253 AOT 88 55 15.8 22
Show 20356-4243 AOT 83 116 7.8 25
Show 20355-4241 AOT 82 201 4.2 26
Show 20370-4208 AOT 86 303 9.1 30
Show 20351-4226 AOT 81 185 14.1 32
Show 20348-4244 AOT 80 246 11.1 34
Show 20374-4202 CPO 89 284 16.0 35
Show 20409-4224 I 1121 BC 243 9.3 38
Show 20409-4224 HJ 5211 AB 299 20.0 38
Show 20344-4221 DON 988 AB 118 0.6 41
Show 20344-4221 DON 988 AB,C 89 23.2 41
Show 20345-4216 NSN 481 91 1.7 42
Show 20417-4253 TDT2475 303 1.0 47
Show 20360-4147 AOT 84 137 18.9 53
Show 20392-4131 KPP1483 59 11.1 68
Show 20391-4345 LDS 717 308 22.2 71
Show 20400-4359 DON 990 AB 39 0.3 87
Show 20400-4359 DON 990 AC 292 7.0 87
Show 20400-4109 UC 4250 315 28.8 92
Show 20331-4116 BRT1111 162 4.3 96
Show 20427-4400 KPP3106 232 2.5 100
Show 20337-4104 B 490 64 1.2 104
Show 20280-4237 RSS 36 267 35.7 108
Show 20385-4425 I 1424 226 2.4 110
Show 20441-4412 KPP1048 AB 183 8.4 119
Show 20339-4431 I 127 BC 209 0.6 122
Show 20319-4054 GLI 259 AB 159 4.1 122
Show 20319-4054 I 1627 AC 346 17.6 122
Show 20339-4431 I 127 AB 50 62.3 122
Show 20339-4431 DAM 325 AD 91 49.9 122
Show 20339-4431 DAM 325 AE 101 70.0 122
Show 20372-4445 TOK 369 245 0.5 129
Show 20289-4402 HJ 5201 117 10.7 130
Show 20338-4033 JC 18 AB 224 4.4 131
Show 20338-4033 JC 18 AC 145 108.0 131
Show 20267-4334 I 1420 358 0.3 134
Show 20452-4428 BRT1114 65 5.6 138
Show 20353-4017 SEE 421 AB 7 14.7 142
Show 20353-4017 KPP4396 AC 51 4.2 142
Show 20276-4110 UC 4190 62 27.4 143
Show 20485-4359 DON 992 291 5.2 144
Show 20487-4359 DON 993 AB 332 12.2 146
Show 20487-4359 HJ 5222 AC 271 28.6 146
Show 20336-4457 KPP 626 123 5.7 148
Show 20404-4012 WG 260 31 6.2 149
Show 20240-4231 DON 984 258 0.9 152
Show 20239-4225 BU 763 AB 180 0.5 154
Show 20239-4225 I 1626 AC 268 18.6 154
Show 20239-4225 SEE 511 AD 219 29.8 154

 
 
WDS 20377-4236 : COMPONENTS
 
 
  A
B pa=181.2°
sep=83.62"
 
 
20377-4236 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 203744.79-423618.1 Mag 15.4 PmRA 13.00
PmDE -92.0
 
 
20377-4236 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 203744.63-423741.7 Mag 15.9 PmRA 4.00
PmDE -109.0 Calc delta mag 0.5 Calc coord yes