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Doubles in session


Current system
20509+1953
UC 255


Nearby doubles
7' : 20507+1959
ROE 16AB

11' : 20517+1954
TDT2585

26' : 20524+2008
HO 144

31' : 20488+1943
JNN 286

41' : 20493+2026
HJ 926

43' : 20536+1935
HO 597

46' : 20534+1921
J 573

47' : 20509+1907
J 195

65' : 20471+1918
HO 141AB

67' : 20554+1935
UC 4329

68' : 20485+1854
HO 459

72' : 20466+1915
COU 426

72' : 20467+1913
GWP2997

74' : 20472+1901
TDT2538

75' : 20523+1841
UC 4314

77' : 20558+2027
J 606

78' : 20467+2044
HJ 2999AB

85' : 20479+1840
UC 4292

87' : 20448+1943
COU 424

87' : 20553+1852
KPP3364

90' : 20467+1846
YR 28

92' : 20537+2116
J 2327AB

93' : 20444+1945
CAR 2

94' : 20574+2010
HO 640

96' : 20447+2032
BRT2484

97' : 20449+2041
J 1179



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.

20509+1953 UC 255

 
 
20h 50m 53.66s +19° 52' 44.5" P.A. 263.00 sep 11.9 mag 13.83,14.89
 
 
Coord 2000 20509+1953 Discov num UC  255 Comp Coord arcsec 2000 20 50 53.66 +19 52 44.5
Date first 1999 Date last 2016 Obs 11
Pa first 263 Pa last 262.8 P.A. Now (θ) 262.8°
Sep first 11.9 Sep last 11.911 Sep. Now (ρ) 11.911"
Mag pri 13.83 Mag sec 14.89 delta mag (ΔM) 1.06 Spectral class
Pri motion ra +008 Sec motion ra +013
Pri motion dec -133 Sec motion dec -133
Notes V (Proper motion indicates physical)
rPM=0.037 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Delphinus Gaia DR2 1813674670885071616
 
 
WDS 20509+1953 UC 255 : 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
20509+1953 UC 255 1999 1 263 12.0 13.83 14.89 V 205053.66+195244.5
20509+1953 UC 255 2001 2 263 11.9 13.83 14.89 VD 205053.66+195244.5
20509+1953 UC 255 2015 3 263 12.0 13.83 14.89 V 205053.66+195244.5
20509+1953 UC 255 2016 11 263 11.9 13.83 14.89 V 205053.66+195244.5

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

 
 
WDS 20509+1953 UC 255 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20509+1953 UC 255 : MEASURES
 
 
No records found.

 
 
WDS 20509+1953 : VIRTUAL EYEPIECE
 
 

20509+1953 UC 255A mag 13.83 20509+1953 UC 255B sep 11.2 P.A. 262.30 mag 14.89 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 20509+1953 : ALADIN DSS IMAGE @ 20h 50m 53.66s +19° 52' 44.5"
 
 
 
 
WDS 20509+1953 UC 255 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20509+1953 UC 255 distance=0' 20507+1959 ROE 16AB distance=7' 20507+1959 ROE 16AC distance=7' 20517+1954 TDT2585 distance=11' 20524+2008 HO 144 distance=26' 20488+1943 JNN 286 distance=31' 20493+2026 HJ 926 distance=41' 20536+1935 HO 597 distance=43' 20534+1921 J 573 distance=46' 20509+1907 J 195 distance=47' 20471+1918 HO 141AB distance=65' 20471+1918 HO 141AC distance=65' 20554+1935 UC 4329 distance=67' 20485+1854 HO 459 distance=68' 20466+1915 COU 426 distance=72' 20467+1913 GWP2997 distance=72' 20472+1901 TDT2538 distance=74' 20523+1841 UC 4314 distance=75' 20558+2027 J 606 distance=77' 20467+2044 HJ 2999AB distance=78' 20467+2044 TOB 197AC distance=78' 20479+1840 UC 4292 distance=85' 20448+1943 COU 424 distance=87' 20553+1852 KPP3364 distance=87' 20467+1846 YR 28 distance=90' 20537+2116 J 2327AB distance=92' 20537+2116 KPP3429AD distance=92' 20444+1945 CAR 2 distance=93' 20537+2116 J 2327BC distance=93' 20574+2010 HO 640 distance=94' 20447+2032 BRT2484 distance=96' 20449+2041 J 1179 distance=97' 20499+1811 UC 4302 distance=103' 20579+2009 BRT2486 distance=103' 20436+1944 STF2722 distance=103' 20448+2051 A 172 distance=104' 20582+1942 TDT2663 distance=104' 20435+1953 STF2721 distance=105' 20480+1816 BPM2268 distance=106' 20530+1806 UC 4316 distance=111' 20565+2118 A 2797 distance=117' 20577+1846 GWP3022 distance=117' 20558+2131 COU 727 distance=120' 20433+1855 TDS1094 distance=123' 20422+1952 LBU 19AB distance=124' 20422+1952 LBU 19AC distance=124' 20422+1952 LBU 19AD distance=124' 20444+2119 A 171 distance=126' 20567+1818 BPM2298 distance=126' 20423+1921 SHN 39 distance=126' 20598+2004 STF2739 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 20509+1953 UC 255 263 11.9
Show 20507+1959 ROE 16 AB 75 6.0 7
Show 20507+1959 ROE 16 AC 246 8.6 7
Show 20517+1954 TDT2585 272 0.6 11
Show 20524+2008 HO 144 350 0.4 26
Show 20488+1943 JNN 286 179 0.2 31
Show 20493+2026 HJ 926 190 5.8 41
Show 20536+1935 HO 597 236 10.3 43
Show 20534+1921 J 573 186 4.2 46
Show 20509+1907 J 195 23 3.3 47
Show 20471+1918 HO 141 AB 294 1.6 65
Show 20471+1918 HO 141 AC 64 22.6 65
Show 20554+1935 UC 4329 262 32.9 67
Show 20485+1854 HO 459 24 0.5 68
Show 20466+1915 COU 426 158 0.3 72
Show 20467+1913 GWP2997 116 272.0 72
Show 20472+1901 TDT2538 234 1.0 74
Show 20523+1841 UC 4314 181 49.2 75
Show 20558+2027 J 606 185 2.6 77
Show 20467+2044 HJ 2999 AB 221 10.3 78
Show 20467+2044 TOB 197 AC 271 19.5 78
Show 20479+1840 UC 4292 105 11.0 85
Show 20448+1943 COU 424 239 5.5 87
Show 20553+1852 KPP3364 154 2.7 87
Show 20467+1846 YR 28 71 0.0 90
Show 20537+2116 J 2327 AB 48 68.4 92
Show 20537+2116 KPP3429 AD 9 32.9 92
Show 20444+1945 CAR 2 82 0.2 93
Show 20537+2116 J 2327 BC 175 4.4 93
Show 20574+2010 HO 640 257 12.5 94
Show 20447+2032 BRT2484 5 2.9 96
Show 20449+2041 J 1179 143 4.0 97
Show 20499+1811 UC 4302 172 82.1 103
Show 20579+2009 BRT2486 165 2.9 103
Show 20436+1944 STF2722 306 7.5 103
Show 20448+2051 A 172 219 2.9 104
Show 20582+1942 TDT2663 36 0.9 104
Show 20435+1953 STF2721 22 2.6 105
Show 20480+1816 BPM2268 54 74.1 106
Show 20530+1806 UC 4316 216 48.9 111
Show 20565+2118 A 2797 237 0.1 117
Show 20577+1846 GWP3022 108 5.7 117
Show 20558+2131 COU 727 353 1.1 120
Show 20433+1855 TDS1094 261 1.0 123
Show 20422+1952 LBU 19 AB 138 124.7 124
Show 20422+1952 LBU 19 AC 111 94.9 124
Show 20422+1952 LBU 19 AD 23 129.8 124
Show 20444+2119 A 171 325 5.4 126
Show 20567+1818 BPM2298 348 78.4 126
Show 20423+1921 SHN 39 54 0.5 126
Show 20598+2004 STF2739 252 3.3 127

 
 
WDS 20509+1953 : COMPONENTS
 
 
  A
B pa=262.3°
sep=11.21"
 
 
20509+1953 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 205053.66+195244.5 Mag 13.83 PmRA 8.00
PmDE -133.0
 
 
20509+1953 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 205052.87+195243.0 Mag 14.89 PmRA 13.00
PmDE -133.0 Calc delta mag 1.06 Calc coord yes