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Doubles in session


Current system
20247-6541
UC 4170


Nearby doubles
14' : 20262-6551
B 989

34' : 20223-6511
KPP3070

43' : 20240-6623
KPP1588

70' : 20222-6649
TDS1064

71' : 20354-6519
HDS2942

74' : 20151-6625
KPP 464

78' : 20196-6652
WIS 337

78' : 20309-6648
MLO 89

80' : 20371-6523
UC 4233

82' : 20121-6608
UC 4120

84' : 20218-6420
LDS 708AB

87' : 20370-6623
TDT2424

90' : 20370-6455
TSN 35

91' : 20227-6411
B 988

93' : 20319-6420
TDT2342

95' : 20324-6704
TDT2345

96' : 20094-6600
KPP 819

97' : 20304-6711
TDT2329

98' : 20404-6551
KPP4210

99' : 20146-6426
HJ 5171AB

104' : 20079-6549
TDT2009

105' : 20115-6437
TDS1049

106' : 20278-6357
UC 4191AB

108' : 20073-6551
B 985

109' : 20348-6414
UC 4220

109' : 20361-6705
CBL 179



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.

20247-6541 UC 4170

 
 
20h 24m 40.86s -65° 41' 01.5" P.A. 221.00 sep 26.6 mag 10.39,12.81
 
 
Coord 2000 20247-6541 Discov num UC 4170 Comp Coord arcsec 2000 20 24 40.86 -65 41 01.5
Date first 1896 Date last 2016 Obs 8
Pa first 222 Pa last 221 P.A. Now (θ) 221°
Sep first 26.6 Sep last 26.573 Sep. Now (ρ) 26.573"
Mag pri 10.39 Mag sec 12.81 delta mag (ΔM) 2.42 Spectral class
Pri motion ra +008 Sec motion ra +007
Pri motion dec -064 Sec motion dec -068
Notes V (Proper motion indicates physical)
rPM=0.06 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Pavo Tycho2 9099-00533-1 Gaia DR2 6426018025467085056
 
 
WDS 20247-6541 UC 4170 : 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
20247-6541 UC 4170 2000 2 221 26.6 10.30 12.80 V 202440.86-654101.5
20247-6541 UC 4170 2010 5 221 26.5 10.39 12.81 V 202440.86-654101.5
20247-6541 UC 4170 2015 6 221 26.6 10.39 12.81 V 202440.86-654101.5
20247-6541 UC 4170 2016 8 221 26.6 10.39 12.81 V 202440.86-654101.5

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

 
 
WDS 20247-6541 UC 4170 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20247-6541 UC 4170 : MEASURES
 
 
No records found.

 
 
WDS 20247-6541 : VIRTUAL EYEPIECE
 
 

20247-6541 UC 4170A mag 10.39 20247-6541 UC 4170B sep 21.3 P.A. 199.70 mag 12.81 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 20247-6541 : ALADIN DSS IMAGE @ 20h 24m 40.86s -65° 41' 01.5"
 
 
 
 
WDS 20247-6541 UC 4170 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20247-6541 UC 4170 distance=0' 20262-6551 B 989 distance=14' 20223-6511 KPP3070 distance=34' 20240-6623 KPP1588 distance=43' 20222-6649 TDS1064 distance=70' 20354-6519 HDS2942 distance=71' 20151-6625 KPP 464 distance=74' 20196-6652 WIS 337 distance=78' 20309-6648 MLO 89 distance=78' 20371-6523 UC 4233 distance=80' 20121-6608 UC 4120 distance=82' 20218-6420 LDS 708AB distance=84' 20218-6420 BAU 62AC distance=84' 20370-6623 TDT2424 distance=87' 20370-6455 TSN 35 distance=90' 20227-6411 B 988 distance=91' 20319-6420 TDT2342 distance=93' 20324-6704 TDT2345 distance=95' 20094-6600 KPP 819 distance=96' 20304-6711 TDT2329 distance=97' 20404-6551 KPP4210 distance=98' 20146-6426 HJ 5171AB distance=99' 20146-6426 HJ 5171AC distance=99' 20146-6426 BAU 60AD distance=99' 20146-6426 HJ 5171BC distance=99' 20079-6549 TDT2009 distance=104' 20115-6437 TDS1049 distance=105' 20278-6357 UC 4191AB distance=106' 20073-6551 B 985 distance=108' 20348-6414 UC 4220 distance=109' 20361-6705 CBL 179 distance=109' 20071-6606 DON 976 distance=110' 20112-6657 TDT2060 distance=112' 20071-6514 RST1057 distance=113' 20084-6639 DON 977 distance=115' 20411-6638 NZO 102 distance=115' 20360-6412 B 991 distance=115' 20397-6436 FAB 16 distance=115' 20210-6734 TDS1062 distance=116' 20082-6639 UC 4096 distance=116' 20192-6735 TDT2164 distance=119' 20398-6430 HJ 5217 distance=120' 20072-6453 KPP 457 distance=120' 20138-6728 DON 981 distance=125' 20416-6427 UC 4259 distance=131' 20446-6630 TOK 918Aa,Ab distance=131' 20357-6348 TDT2403 distance=133' 20407-6411 HU 1616 distance=136' 20253-6800 TDT2258 distance=140' 20074-6415 RST5467 distance=140' 20105-6738 TDT2049 distance=145' 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 20247-6541 UC 4170 221 26.6
Show 20262-6551 B 989 70 1.2 14
Show 20223-6511 KPP3070 138 3.8 34
Show 20240-6623 KPP1588 67 12.1 43
Show 20222-6649 TDS1064 285 0.9 70
Show 20354-6519 HDS2942 86 0.7 71
Show 20151-6625 KPP 464 112 3.6 74
Show 20196-6652 WIS 337 176 577.1 78
Show 20309-6648 MLO 89 137 5.2 78
Show 20371-6523 UC 4233 2 9.3 80
Show 20121-6608 UC 4120 323 15.4 82
Show 20218-6420 LDS 708 AB 210 22.1 84
Show 20218-6420 BAU 62 AC 281 46.3 84
Show 20370-6623 TDT2424 19 1.8 87
Show 20370-6455 TSN 35 73 35.3 90
Show 20227-6411 B 988 68 1.8 91
Show 20319-6420 TDT2342 182 2.5 93
Show 20324-6704 TDT2345 217 0.5 95
Show 20094-6600 KPP 819 173 7.0 96
Show 20304-6711 TDT2329 167 0.5 97
Show 20404-6551 KPP4210 53 1.5 98
Show 20146-6426 HJ 5171 AB 305 17.3 99
Show 20146-6426 HJ 5171 AC 335 34.6 99
Show 20146-6426 BAU 60 AD 215 52.1 99
Show 20146-6426 HJ 5171 BC 21.5 99
Show 20079-6549 TDT2009 303 0.5 104
Show 20115-6437 TDS1049 27 1.2 105
Show 20278-6357 UC 4191 AB 214 28.3 106
Show 20073-6551 B 985 206 4.7 108
Show 20348-6414 UC 4220 9 41.6 109
Show 20361-6705 CBL 179 107 24.7 109
Show 20071-6606 DON 976 304 1.1 110
Show 20112-6657 TDT2060 105 0.5 112
Show 20071-6514 RST1057 50 1.7 113
Show 20084-6639 DON 977 88 5.2 115
Show 20411-6638 NZO 102 141 10.1 115
Show 20360-6412 B 991 167 3.1 115
Show 20397-6436 FAB 16 358 20.0 115
Show 20210-6734 TDS1062 240 1.0 116
Show 20082-6639 UC 4096 97 43.5 116
Show 20192-6735 TDT2164 225 0.6 119
Show 20398-6430 HJ 5217 232 7.7 120
Show 20072-6453 KPP 457 344 4.6 120
Show 20138-6728 DON 981 169 3.1 125
Show 20416-6427 UC 4259 191 13.9 131
Show 20446-6630 TOK 918 Aa,Ab 336 0.1 131
Show 20357-6348 TDT2403 237 1.0 133
Show 20407-6411 HU 1616 68 0.7 136
Show 20253-6800 TDT2258 72 0.7 140
Show 20074-6415 RST5467 285 0.8 140
Show 20105-6738 TDT2049 214 0.6 145

 
 
WDS 20247-6541 : COMPONENTS
 
 
  A
B pa=199.7°
sep=21.30"
 
 
20247-6541 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 202440.86-654101.5 Mag 10.39 PmRA 8.00
PmDE -64.0 Tycho2 9099-00533-1
Tycho2
Tycho2 9099-00533-1 Pflag RAmdeg 306.17028076 DEmdeg -65.68375080
PmRA 9.6 PmDE -66.6 E RAmdeg 27 E DEmdeg 25
E pmRA 1.7 E pmDE 1.5 EpRAm 1985.52 EpDEm 1982.80
Num 6 Q RAmdeg 0.5 Q DEmdeg 0.8 Q pmRA 0.5
Q pmDE 0.8 BTmag 11.555 E BTmag 0.065 VTmag 10.392
E VTmag 0.037 Prox 999 TYC T HIP
CCDM RAdeg 306.17022222 DEdeg -65.68359444 EpRA 1990 1.71
EpDE 1990 1.65 E RAdeg 29.6 E DEdeg 31.4 Posflg
Corr -0.2
 
 
20247-6541 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 202439.70-654121.6 Mag 12.81 PmRA 7.00
PmDE -68.0 Calc delta mag 2.42 Calc coord yes