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Doubles in session


Current system
20377-4520
UC 4239


Nearby doubles
19' : 20365-4533
I 41

36' : 20372-4445
TOK 369

46' : 20411-4549
SKF1166

49' : 20350-4559
UC 4223

50' : 20336-4457
KPP 626

56' : 20385-4425
I 1424

59' : 20322-4521
RST5470AB

64' : 20339-4431
I 127AB

66' : 20327-4558
UC 4211

71' : 20369-4630
KPP1368

85' : 20400-4359
DON 990AB

88' : 20454-4554
RST1076

95' : 20452-4428
BRT1114

96' : 20441-4412
KPP1048AB

97' : 20427-4400
KPP3106

97' : 20391-4345
LDS 717

98' : 20296-4609
I 1422

105' : 20476-4534
I 1427

117' : 20459-4640
RST2156

118' : 20376-4717
HJ 5209AB
Al nair

122' : 20465-4639
LDS 721

123' : 20289-4402
HJ 5201

126' : 20264-4603
UC 4184

131' : 20413-4725
CPO 617

131' : 20333-4722
BRT1110

134' : 20251-4518
DON 985



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.

20377-4520 UC 4239

 
 
20h 37m 43.47s -45° 19' 54.3" P.A. 226.00 sep 11.9 mag 13.60,14.00
 
 
Coord 2000 20377-4520 Discov num UC 4239 Comp Coord arcsec 2000 20 37 43.47 -45 19 54.3
Date first 1998 Date last 2016 Obs 7
Pa first 226 Pa last 225.8 P.A. Now (θ) 225.8°
Sep first 11.9 Sep last 11.909 Sep. Now (ρ) 11.909"
Mag pri 13.60 Mag sec 14.00 delta mag (ΔM) 0.4 Spectral class
Pri motion ra +017 Sec motion ra +012
Pri motion dec -080 Sec motion dec -084
Notes V R (Proper motion indicates physical, Red magnitudes)
rPM=0.075 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Indus Gaia DR2 6675203124510931968
 
 
WDS 20377-4520 UC 4239 : 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
20377-4520 UC 4239 1999 2 226 11.9 13.60 14.00 V 203743.47-451954.3
20377-4520 UC 4239 2000 2 226 11.9 13.60 14.00 V 203743.47-451954.3
20377-4520 UC 4239 2010 4 226 11.8 13.60 14.00 V R 203743.47-451954.3
20377-4520 UC 4239 2015 5 226 12.0 13.60 14.00 V R 203743.47-451954.3
20377-4520 UC 4239 2016 7 226 11.9 13.60 14.00 V R 203743.47-451954.3

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

 
 
WDS 20377-4520 UC 4239 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20377-4520 UC 4239 : MEASURES
 
 
No records found.

 
 
WDS 20377-4520 : VIRTUAL EYEPIECE
 
 

20377-4520 UC 4239A mag 13.6 20377-4520 UC 4239B sep 10.2 P.A. 215.90 mag 14 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 20377-4520 : ALADIN DSS IMAGE @ 20h 37m 43.47s -45° 19' 54.3"
 
 
 
 
WDS 20377-4520 UC 4239 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20377-4520 UC 4239 distance=0' 20365-4533 I 41 distance=19' 20372-4445 TOK 369 distance=36' 20411-4549 SKF1166 distance=46' 20350-4559 UC 4223 distance=49' 20336-4457 KPP 626 distance=50' 20385-4425 I 1424 distance=56' 20322-4521 RST5470AB distance=59' 20322-4521 HJ 5204AB,C distance=59' 20339-4431 I 127AB distance=64' 20339-4431 DAM 325AD distance=64' 20339-4431 DAM 325AE distance=64' 20339-4431 I 127BC distance=64' 20327-4558 UC 4211 distance=66' 20369-4630 KPP1368 distance=71' 20400-4359 DON 990AB distance=85' 20400-4359 DON 990AC distance=85' 20454-4554 RST1076 distance=88' 20452-4428 BRT1114 distance=95' 20441-4412 KPP1048AB distance=96' 20427-4400 KPP3106 distance=97' 20391-4345 LDS 717 distance=97' 20296-4609 I 1422 distance=98' 20476-4534 I 1427 distance=105' 20459-4640 RST2156 distance=117' 20376-4717 HJ 5209AB (Al nair) distance=118' 20376-4717 HJ 5209AC (Al nair) distance=118' 20465-4639 LDS 721 distance=122' 20289-4402 HJ 5201 distance=123' 20264-4603 UC 4184 distance=126' 20413-4725 CPO 617 distance=131' 20333-4722 BRT1110 distance=131' 20251-4518 DON 985 distance=134' 20286-4655 RSS 548 distance=135' 20258-4420 BRT1108 distance=141' 20485-4359 DON 992 distance=141' 20487-4359 DON 993AB distance=143' 20487-4359 HJ 5222AC distance=143' 20389-4253 AOT 88 distance=148' 20358-4747 I 665 distance=149' 20381-4251 UC 4240 distance=150' 20495-4649 HU 1331 distance=152' 20402-4749 UC 4252 distance=152' 20417-4253 TDT2475 distance=153' 20321-4742 I 1087AB distance=154' 20321-4742 TOK 628AC distance=154' 20356-4243 AOT 83 distance=159' 20267-4334 I 1420 distance=159' 20348-4244 AOT 80 distance=160' 20355-4241 AOT 82 distance=161' 20469-4730 UC 4285 distance=161' 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 20377-4520 UC 4239 226 11.9
Show 20365-4533 I 41 356 2.3 19
Show 20372-4445 TOK 369 245 0.5 36
Show 20411-4549 SKF1166 147 20.8 46
Show 20350-4559 UC 4223 99 51.7 49
Show 20336-4457 KPP 626 123 5.7 50
Show 20385-4425 I 1424 226 2.4 56
Show 20322-4521 RST5470 AB 125 0.2 59
Show 20322-4521 HJ 5204 AB,C 35 6.2 59
Show 20339-4431 I 127 AB 50 62.3 64
Show 20339-4431 DAM 325 AD 91 49.9 64
Show 20339-4431 DAM 325 AE 101 70.0 64
Show 20339-4431 I 127 BC 209 0.6 64
Show 20327-4558 UC 4211 347 28.6 66
Show 20369-4630 KPP1368 296 10.3 71
Show 20400-4359 DON 990 AB 39 0.3 85
Show 20400-4359 DON 990 AC 292 7.0 85
Show 20454-4554 RST1076 287 1.0 88
Show 20452-4428 BRT1114 65 5.6 95
Show 20441-4412 KPP1048 AB 183 8.4 96
Show 20427-4400 KPP3106 232 2.5 97
Show 20391-4345 LDS 717 308 22.2 97
Show 20296-4609 I 1422 17 0.1 98
Show 20476-4534 I 1427 211 0.6 105
Show 20459-4640 RST2156 245 0.6 117
Show Al nair 20376-4717 HJ 5209 AB 206 69.2 118
Show Al nair 20376-4717 HJ 5209 AC 336 57.5 118
Show 20465-4639 LDS 721 215 6.7 122
Show 20289-4402 HJ 5201 117 10.7 123
Show 20264-4603 UC 4184 90 71.7 126
Show 20413-4725 CPO 617 165 4.8 131
Show 20333-4722 BRT1110 239 4.1 131
Show 20251-4518 DON 985 341 1.8 134
Show 20286-4655 RSS 548 174 15.4 135
Show 20258-4420 BRT1108 191 12.3 141
Show 20485-4359 DON 992 291 5.2 141
Show 20487-4359 DON 993 AB 332 12.2 143
Show 20487-4359 HJ 5222 AC 271 28.6 143
Show 20389-4253 AOT 88 55 15.8 148
Show 20358-4747 I 665 304 2.9 149
Show 20381-4251 UC 4240 351 45.0 150
Show 20495-4649 HU 1331 194 0.9 152
Show 20402-4749 UC 4252 317 5.7 152
Show 20417-4253 TDT2475 303 1.0 153
Show 20321-4742 I 1087 AB 95 3.5 154
Show 20321-4742 TOK 628 AC 120 999.9 154
Show 20356-4243 AOT 83 116 7.8 159
Show 20267-4334 I 1420 358 0.3 159
Show 20348-4244 AOT 80 246 11.1 160
Show 20355-4241 AOT 82 201 4.2 161
Show 20469-4730 UC 4285 90 20.0 161

 
 
WDS 20377-4520 : COMPONENTS
 
 
  A
B pa=215.9°
sep=10.24"
 
 
20377-4520 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 203743.47-451954.3 Mag 13.6 PmRA 17.00
PmDE -80.0
 
 
20377-4520 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 203742.90-452002.6 Mag 14 PmRA 12.00
PmDE -84.0 Calc delta mag 0.4 Calc coord yes