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Doubles in session


Current system
21077+3022
UC 256


Nearby doubles
14' : 21077+3009
KPP1031

16' : 21086+3012
STF2762AB

17' : 21074+3038
TDT2767

19' : 21064+3031
TDT2751

20' : 21092+3023
CBL 90

23' : 21070+3001
J 1319

27' : 21073+3048
TDT2766

32' : 21101+3027
KPP4225

35' : 21056+3043
TDT2737

35' : 21103+3027
TDT2801

37' : 21078+2945
MLB 715AB

43' : 21088+3102
ES 375

48' : 21099+3100
HJ 1616AB

51' : 21115+3033
ALD 5

52' : 21065+2933
AG 413

55' : 21080+3116
LDS2940

56' : 21117+3038
J 1235

56' : 21034+3025
SMA 123

57' : 21058+2931
LDS2938

59' : 21075+2924
TDT2769

60' : 21050+3109
J 3124

61' : 21047+3109
DAM 226

62' : 21031+3039
GRV 407

62' : 21079+3123
GRV 421

64' : 21091+2922
COU1332

67' : 21037+3104
STT 427



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.

21077+3022 UC 256

 
 
21h 07m 40.74s +30° 22' 11.7" P.A. 67.00 sep 48.1 mag 8.79,11.10 Sp G0V
 
 
Coord 2000 21077+3022 Discov num UC  256 Comp Coord arcsec 2000 21 07 40.74 +30 22 11.7
Date first 1894 Date last 2015 Obs 15
Pa first 68 Pa last 67.2 P.A. Now (θ) 67.2°
Sep first 46.7 Sep last 48.068 Sep. Now (ρ) 48.068"
Mag pri 8.79 Mag sec 11.10 delta mag (ΔM) 2.31 Spectral class G0V (yellow)
Pri motion ra -006 Sec motion ra -010
Pri motion dec -070 Sec motion dec -064
Notes V (Proper motion indicates physical)
rPM=0.103 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 2701-00565-1 Gaia DR2 1852375899638220928
 
 
WDS 21077+3022 UC 256 : 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
21077+3022 UC 256 1999 1 67 48.1 8.79 11.10 V 210740.74+302211.7
21077+3022 UC 256 2011 8 67 48.0 8.79 11.10 VD 210740.74+302211.7
21077+3022 UC 256 2015 10 67 48.2 8.79 11.10 G0V V 210740.74+302211.7

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

 
 
WDS 21077+3022 UC 256 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21077+3022 UC 256 : MEASURES
 
 
No records found.

 
 
WDS 21077+3022 : VIRTUAL EYEPIECE
 
 

21077+3022 UC 256A mag 8.79 Sp G0V 21077+3022 UC 256B sep 42.5 P.A. 64.00 mag 11.1 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 21077+3022 : ALADIN DSS IMAGE @ 21h 07m 40.74s +30° 22' 11.7"
 
 
 
 
WDS 21077+3022 UC 256 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21077+3022 UC 256 distance=0' 21077+3009 KPP1031 distance=14' 21086+3012 STF2762AB distance=16' 21086+3012 STF2762AC distance=16' 21086+3012 STF2762AD distance=16' 21074+3038 TDT2767 distance=17' 21064+3031 TDT2751 distance=19' 21092+3023 CBL 90 distance=20' 21070+3001 J 1319 distance=23' 21073+3048 TDT2766 distance=27' 21101+3027 KPP4225 distance=32' 21056+3043 TDT2737 distance=35' 21103+3027 TDT2801 distance=35' 21078+2945 MLB 715AB distance=37' 21078+2945 MLB 715AC distance=37' 21088+3102 ES 375 distance=43' 21099+3100 HJ 1616AB distance=48' 21099+3100 GRV 431AC distance=48' 21115+3033 ALD 5 distance=51' 21065+2933 AG 413 distance=52' 21080+3116 LDS2940 distance=55' 21117+3038 J 1235 distance=56' 21034+3025 SMA 123 distance=56' 21058+2931 LDS2938 distance=57' 21075+2924 TDT2769 distance=59' 21050+3109 J 3124 distance=60' 21047+3109 DAM 226 distance=61' 21031+3039 GRV 407 distance=62' 21079+3123 GRV 421 distance=62' 21091+2922 COU1332 distance=64' 21037+3104 STT 427 distance=67' 21118+2943 HAU 27 distance=67' 21046+3116 J 2336 distance=68' 21088+2916 MLB 487 distance=68' 21026+3041 COU1182 distance=69' 21129+3014 BAS 7Aa,Ab distance=69' 21129+3014 BUP 227AB distance=69' 21129+3014 BUP 227AC distance=69' 21129+3014 BUP 227AD distance=69' 21129+3014 FYM 141AE distance=69' 21129+3014 FYM 141AF distance=69' 21129+3014 FYM 141AG distance=69' 21083+2913 COU1331 distance=70' 21109+2925 BAG 29 distance=71' 21025+2958 COU1181 distance=72' 21093+3131 COU1333 distance=72' 21052+3127 GRV 412 distance=73' 21086+3135 J 2337 distance=74' 21057+2912 GRV 416 distance=75' 21129+2944 MLB 667 distance=78' 21020+3052 LDS2937 distance=80' 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 21077+3022 UC 256 67 48.1
Show 21077+3009 KPP1031 334 8.3 14
Show 21086+3012 STF2762 AB 303 3.3 16
Show 21086+3012 STF2762 AC 229 59.3 16
Show 21086+3012 STF2762 AD 66 73.1 16
Show 21074+3038 TDT2767 173 10.5 17
Show 21064+3031 TDT2751 148 2.4 19
Show 21092+3023 CBL 90 113 54.5 20
Show 21070+3001 J 1319 206 1.7 23
Show 21073+3048 TDT2766 193 1.9 27
Show 21101+3027 KPP4225 236 2.2 32
Show 21056+3043 TDT2737 322 6.3 35
Show 21103+3027 TDT2801 237 0.9 35
Show 21078+2945 MLB 715 AB 40 5.5 37
Show 21078+2945 MLB 715 AC 336 25.3 37
Show 21088+3102 ES 375 42 4.5 43
Show 21099+3100 HJ 1616 AB 315 10.3 48
Show 21099+3100 GRV 431 AC 16 22.5 48
Show 21115+3033 ALD 5 153 3.7 51
Show 21065+2933 AG 413 107 2.7 52
Show 21080+3116 LDS2940 222 7.6 55
Show 21117+3038 J 1235 184 2.8 56
Show 21034+3025 SMA 123 145 7.2 56
Show 21058+2931 LDS2938 247 23.5 57
Show 21075+2924 TDT2769 157 1.1 59
Show 21050+3109 J 3124 208 4.5 60
Show 21047+3109 DAM 226 16 4.3 61
Show 21031+3039 GRV 407 221 59.2 62
Show 21079+3123 GRV 421 185 14.6 62
Show 21091+2922 COU1332 20 0.2 64
Show 21037+3104 STT 427 153 4.1 67
Show 21118+2943 HAU 27 297 50.0 67
Show 21046+3116 J 2336 40 9.1 68
Show 21088+2916 MLB 487 142 4.3 68
Show 21026+3041 COU1182 180 1.0 69
Show 21129+3014 BAS 7 Aa,Ab 246 0.0 69
Show 21129+3014 BUP 227 AB 205 65.2 69
Show 21129+3014 BUP 227 AC 300 91.5 69
Show 21129+3014 BUP 227 AD 63 105.3 69
Show 21129+3014 FYM 141 AE 76 42.8 69
Show 21129+3014 FYM 141 AF 267 63.6 69
Show 21129+3014 FYM 141 AG 97 70.7 69
Show 21083+2913 COU1331 37 0.3 70
Show 21109+2925 BAG 29 174 0.2 71
Show 21025+2958 COU1181 214 0.7 72
Show 21093+3131 COU1333 258 0.6 72
Show 21052+3127 GRV 412 265 42.4 73
Show 21086+3135 J 2337 349 6.2 74
Show 21057+2912 GRV 416 137 38.2 75
Show 21129+2944 MLB 667 30 2.4 78
Show 21020+3052 LDS2937 140 55.9 80

 
 
WDS 21077+3022 : COMPONENTS
 
 
  A
B pa=64.0°
sep=42.53"
 
 
21077+3022 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 210740.74+302211.7 Mag 8.79 Spectral class G0V (yellow)
PmRA -6.00 PmDE -70.0 Tycho2 2701-00565-1
Tycho2
Tycho2 2701-00565-1 Pflag RAmdeg 316.91974311 DEmdeg 30.36991049
PmRA -8.5 PmDE -69.3 E RAmdeg 8 E DEmdeg 7
E pmRA 1.3 E pmDE 1.2 EpRAm 1990.68 EpDEm 1990.98
Num 10 Q RAmdeg 1.2 Q DEmdeg 0.9 Q pmRA 1.2
Q pmDE 0.8 BTmag 9.430 E BTmag 0.017 VTmag 8.787
E VTmag 0.013 Prox 480 TYC T HIP
CCDM RAdeg 316.91976694 DEdeg 30.37007139 EpRA 1990 1.45
EpDE 1990 1.66 E RAdeg 7.6 E DEdeg 6.7 Posflg
Corr 0.0
 
 
21077+3022 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 210743.69+302230.3 Mag 11.1 PmRA -10.00
PmDE -64.0 Tycho2 2701-00841-1 Calc delta mag 2.31 Calc coord yes
Tycho2
Tycho2 2701-00841-1 Pflag RAmdeg 316.93404489 DEmdeg 30.37504359
PmRA -4.1 PmDE -68.1 E RAmdeg 50 E DEmdeg 44
E pmRA 2.0 E pmDE 2.0 EpRAm 1983.35 EpDEm 1985.16
Num 5 Q RAmdeg 1.2 Q DEmdeg 1.1 Q pmRA 1.2
Q pmDE 1.1 BTmag 12.449 E BTmag 0.168 VTmag 11.102
E VTmag 0.065 Prox 480 TYC HIP
CCDM RAdeg 316.93404611 DEdeg 30.37520111 EpRA 1990 1.45
EpDE 1990 1.66 E RAdeg 55.5 E DEdeg 47.9 Posflg
Corr 0.1