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Doubles in session


Current system
20256+0604
UC 4177


Nearby doubles
20' : 20264+0620
GWP2946

25' : 20271+0551
HJ 2963

38' : 20246+0531
BU 664AB

43' : 20234+0535
WHC 19

46' : 20233+0534
OPI 24

56' : 20254+0700
UC 4176

65' : 20238+0506
J 556

66' : 20218+0635
TDT2207

72' : 20253+0453
KPP4195AB

77' : 20295+0514
UC 4199

82' : 20309+0626
DAE 10AB

83' : 20290+0710
A 610

84' : 20300+0655
LDS4845

85' : 20251+0728
UC 4173

92' : 20285+0443
J 3220

96' : 20316+0530
A 395

96' : 20278+0734
GWP2954

98' : 20264+0741
UC 4183

98' : 20312+0513
AG 257

101' : 20314+0701
J 3221

104' : 20276+0745
J 1297

108' : 20301+0730
LDS4846

108' : 20284+0746
BRT2186

109' : 20300+0730
NSN 733

110' : 20209+0727
UC 4153

111' : 20185+0626
J 2191



Selections
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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.

20256+0604 UC 4177

 
 
20h 25m 38.38s +06° 04' 14.3" P.A. 278.00 sep 14.3 mag 12.60,13.90
 
 
Coord 2000 20256+0604 Discov num UC 4177 Comp Coord arcsec 2000 20 25 38.38 +06 04 14.3
Date first 2000 Date last 2015 Obs 8
Pa first 278 Pa last 278.1 P.A. Now (θ) 278.1°
Sep first 14.3 Sep last 14.32 Sep. Now (ρ) 14.32"
Mag pri 12.60 Mag sec 13.90 delta mag (ΔM) 1.3 Spectral class
Pri motion ra +027 Sec motion ra +027
Pri motion dec -052 Sec motion dec -061
Notes V R (Proper motion indicates physical, Red magnitudes)
rPM=0.135 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Delphinus Tycho2 0509-00564-1 Gaia DR2 4246664478885195392
 
 
WDS 20256+0604 UC 4177 : 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
20256+0604 UC 4177 2000 2 278 14.3 12.60 13.90 V 202538.38+060414.3
20256+0604 UC 4177 2010 3 278 14.3 12.60 13.90 V R 202538.38+060414.3
20256+0604 UC 4177 2015 4 278 14.1 12.60 13.90 V R 202538.38+060414.3

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

 
 
WDS 20256+0604 UC 4177 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20256+0604 UC 4177 : MEASURES
 
 
No records found.

 
 
WDS 20256+0604 : VIRTUAL EYEPIECE
 
 

20256+0604 UC 4177A mag 12.6 20256+0604 UC 4177B sep 14.2 P.A. 278.10 mag 13.9 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 20256+0604 : ALADIN DSS IMAGE @ 20h 25m 38.38s +06° 04' 14.3"
 
 
 
 
WDS 20256+0604 UC 4177 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20256+0604 UC 4177 distance=0' 20264+0620 GWP2946 distance=20' 20271+0551 HJ 2963 distance=25' 20246+0531 BU 664AB distance=38' 20246+0531 FOX9034AC distance=38' 20234+0535 WHC 19 distance=43' 20233+0534 OPI 24 distance=46' 20254+0700 UC 4176 distance=56' 20238+0506 J 556 distance=65' 20218+0635 TDT2207 distance=66' 20253+0453 KPP4195AB distance=72' 20295+0514 UC 4199 distance=77' 20309+0626 DAE 10AB distance=82' 20309+0626 WSP 2AC distance=82' 20309+0626 WSP 2AD distance=82' 20309+0626 WSP 2AE distance=82' 20309+0626 WSP 2AF distance=82' 20290+0710 A 610 distance=83' 20300+0655 LDS4845 distance=84' 20251+0728 UC 4173 distance=85' 20285+0443 J 3220 distance=92' 20316+0530 A 395 distance=96' 20278+0734 GWP2954 distance=96' 20264+0741 UC 4183 distance=98' 20312+0513 AG 257 distance=98' 20314+0701 J 3221 distance=101' 20276+0745 J 1297 distance=104' 20301+0730 LDS4846 distance=108' 20284+0746 BRT2186 distance=108' 20300+0730 NSN 733 distance=109' 20209+0727 UC 4153 distance=110' 20185+0626 J 2191 distance=111' 20183+0627 DAM 208AB distance=112' 20183+0627 DAM 208AC distance=112' 20198+0716 GRV 331 distance=113' 20311+0444 UC 4205 distance=115' 20329+0647 UC 4213 distance=116' 20256+0801 LDS4842 distance=117' 20327+0656 HDS2934 distance=117' 20178+0612 AG 251AB distance=118' 20178+0612 AG 251AC distance=118' 20331+0525 TDT2364 distance=119' 20315+0444 BAL2966 distance=120' 20186+0704 HJ 2945 distance=122' 20277+0803 HJ 2966 distance=122' 20335+0527 STF2696AB distance=124' 20335+0527 STF2696AC distance=124' 20230+0803 UC 4163 distance=126' 20264+0810 GWP2947AB distance=126' 20327+0453 J 2314AB distance=127' 20327+0453 J 2314AC distance=127' 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 20256+0604 UC 4177 278 14.3
Show 20264+0620 GWP2946 30 25.6 20
Show 20271+0551 HJ 2963 209 9.5 25
Show 20246+0531 BU 664 AB 287 9.0 38
Show 20246+0531 FOX9034 AC 89 35.6 38
Show 20234+0535 WHC 19 178 2.0 43
Show 20233+0534 OPI 24 351 9.2 46
Show 20254+0700 UC 4176 120 51.9 56
Show 20238+0506 J 556 187 2.9 65
Show 20218+0635 TDT2207 258 0.9 66
Show 20253+0453 KPP4195 AB 16 11.7 72
Show 20295+0514 UC 4199 240 54.1 77
Show 20309+0626 DAE 10 AB 103 0.7 82
Show 20309+0626 WSP 2 AC 114 11.6 82
Show 20309+0626 WSP 2 AD 183 13.6 82
Show 20309+0626 WSP 2 AE 16 18.5 82
Show 20309+0626 WSP 2 AF 176 19.8 82
Show 20290+0710 A 610 99 0.6 83
Show 20300+0655 LDS4845 27 83.4 84
Show 20251+0728 UC 4173 359 42.9 85
Show 20285+0443 J 3220 181 3.9 92
Show 20316+0530 A 395 160 0.7 96
Show 20278+0734 GWP2954 290 50.4 96
Show 20264+0741 UC 4183 195 59.7 98
Show 20312+0513 AG 257 75 1.7 98
Show 20314+0701 J 3221 167 3.9 101
Show 20276+0745 J 1297 2 1.0 104
Show 20301+0730 LDS4846 313 39.4 108
Show 20284+0746 BRT2186 173 5.0 108
Show 20300+0730 NSN 733 133 39.4 109
Show 20209+0727 UC 4153 201 23.7 110
Show 20185+0626 J 2191 134 4.8 111
Show 20183+0627 DAM 208 AB 8 4.9 112
Show 20183+0627 DAM 208 AC 298 5.3 112
Show 20198+0716 GRV 331 323 47.5 113
Show 20311+0444 UC 4205 254 48.5 115
Show 20329+0647 UC 4213 204 9.0 116
Show 20256+0801 LDS4842 218 101.0 117
Show 20327+0656 HDS2934 75 1.2 117
Show 20178+0612 AG 251 AB 185 7.3 118
Show 20178+0612 AG 251 AC 221 87.7 118
Show 20331+0525 TDT2364 126 1.9 119
Show 20315+0444 BAL2966 117 10.4 120
Show 20186+0704 HJ 2945 55 10.1 122
Show 20277+0803 HJ 2966 259 3.6 122
Show 20335+0527 STF2696 AB 298 0.5 124
Show 20335+0527 STF2696 AC 348 13.7 124
Show 20230+0803 UC 4163 291 56.4 126
Show 20264+0810 GWP2947 AB 43.1 126
Show 20327+0453 J 2314 AB 70 4.9 127
Show 20327+0453 J 2314 AC 138 19.0 127

 
 
WDS 20256+0604 : COMPONENTS
 
 
  A
B pa=278.1°
sep=14.24"
 
 
20256+0604 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 202538.38+060414.3 Mag 12.6 PmRA 27.00
PmDE -52.0 Tycho2 0509-00564-1
Tycho2
Tycho2 0509-00564-1 Pflag RAmdeg 306.40992968 DEmdeg 6.07051512
PmRA 27.1 PmDE -59.5 E RAmdeg 106 E DEmdeg 137
E pmRA 4.3 E pmDE 4.3 EpRAm 1981.85 EpDEm 1972.94
Num 2 Q RAmdeg Q DEmdeg Q pmRA
Q pmDE BTmag 13.439 E BTmag 0.439 VTmag 12.076
E VTmag 0.220 Prox 999 TYC HIP
CCDM RAdeg 306.40986639 DEdeg 6.07065972 EpRA 1990 1.62
EpDE 1990 1.25 E RAdeg 114.3 E DEdeg 158.1 Posflg
Corr -0.1
 
 
20256+0604 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 202537.43+060416.3 Mag 13.9 PmRA 27.00
PmDE -61.0 Calc delta mag 1.3 Calc coord yes