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Doubles in session


Current system
21228+4031
HO 287


Nearby doubles
19' : 21219+4049
GRV 456

24' : 21217+4053
ES 1691

28' : 21221+4011
ES 2518

32' : 21257+4043
COU2306

36' : 21204+4017
RAO 451

36' : 21209+4010
UC 259AB

36' : 21241+4002
ES 1994

37' : 21248+4106
COU2305

39' : 21215+4002
SEI1511

39' : 21212+4003
COU2230

42' : 21209+4002
LDS2512

42' : 21195+4048
TDT2903

44' : 21240+3954
TDT2944

46' : 21192+4026
LDS2508AB

50' : 21260+4112
HDS3052

50' : 21259+3959
TDT2958

51' : 21192+4102
HO 602

51' : 21250+4122
ES 1692

53' : 21199+3957
SEI1506

54' : 21193+4108
TDT2901

54' : 21189+4102
HO 601AB

57' : 21209+4127
HO 156

57' : 21224+3940
ALI1161

57' : 21264+3954
RAO 455

57' : 21267+3957
MLB1021

57' : 21279+4046
TDT2979



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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

21228+4031 HO 287

 
 
21h 23m 01.74s +40° 35' 39.3" P.A. 6.00 sep 2.7 mag 11.06,11.16
 
 
Coord 2000 21228+4031 Discov num HO  287 Comp Coord arcsec 2000 21 23 01.74 +40 35 39.3
Date first 1889 Date last 2015 Obs 10
Pa first 9 Pa last 6.3 P.A. Now (θ) 6.3°
Sep first 1.6 Sep last 2.669 Sep. Now (ρ) 2.669"
Mag pri 11.06 Mag sec 11.16 delta mag (ΔM) 0.1 Spectral class
Pri motion ra -009 Sec motion ra -006
Pri motion dec -012 Sec motion dec +017
Notes
rPM=1.617
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3186-01820-1 Gaia DR2 1965694248059078656
 
 
WDS 21228+4031 HO 287 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Ho_1883 Ma j Hough, G.W. 1883MNRAS..43..371H
Ho_1883 MNRAS 43, 371, 1883 (data also in Ho_1890) 1890AN....125....1H
Ho_1884 Ma j Hough, G.W. 1884MNRAS..44..365H
Ho_1884 MNRAS 44, 365, 1884 (data also in Ho_1890) 1890AN....125....1H
Ho_1885 Ma j Hough, G.W. 1885MNRAS..45..417H
Ho_1885 MNRAS 45, 417, 1885 (data also in Ho_1890) 1890AN....125....1H
Ho_1886 Ma j Hough, G.W. 1886MNRAS..46..393H
Ho_1886 MNRAS 46, 393, 1886 (data also in Ho_1890) 1890AN....125....1H
Ho_1887 Ma j Hough, G.W. 1887AN....116..273H
Ho_1887 AN 116, 273, 1887
Ho_1890 Ma j Hough, G.W. 1890AN....125....1H
Ho_1890 AN 125, 1, 1890
Ho_1890b Ma j Hough, G.W. 1890AJ......9..177H
Ho_1890b AJ 9, 177, 1890 (some data also in Ho_1890 or Ho_1894b) 1890AN....125....1H
Ho_1894a Ma - Hough, G.W. 1894MNRAS..54..251H
Ho_1894a MNRAS 54, 251, 1894
Ho_1894b Ma j Hough, G.W. (HO 304 - 490) 1894AN....135..281H
Ho_1894b AN 135, 281, 1894
Ho_1894c Ma - Hough, G.W. (measure by Dembowski, H.) 1894AN....135..281H
Ho_1894c AN 135, 281, 1894
Ho_1899a Ma j Hough, G.W. 1899AN....149..65H
Ho_1899a AN 149, 65, 1899
Ho_1899b Ma - Hough, G.W. (measure by Burnham, S.W.) 1899AN....149..65H
Ho_1899b AN 149, 65, 1899
Ho_1907 Ma - Hough, G.W. 1907PFAO....3c...1D
Ho_1907 Pub. Univ. Penn. 3, Pt. 3, 1907 (measures sent to Doolittle)
Ho_1932A Ma - Hough, G.W. 1932QB821.A43......
Ho_1932A cited in ADS, 1932 (unpublished measures sent to Aitken in manuscript by Fox)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21228+4031 HO 287 2002 8 6 2.7 11.06 11.16 212301.74+403539.3
21228+4031 HO 287 2015 10 6 2.7 11.06 11.16 212301.74+403539.3

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

 
 
WDS 21228+4031 HO 287 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21228+4031 HO 287 : MEASURES
 
 
No records found.

 
 
WDS 21228+4031 : VIRTUAL EYEPIECE
 
 

21228+4031 HO 287A mag 11.06 21228+4031 HO 287B sep 2.7 P.A. 4.80 mag 11.16 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 21228+4031 : ALADIN DSS IMAGE @ 21h 23m 01.74s +40° 35' 39.3"
 
 
 
 
WDS 21228+4031 HO 287 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21228+4031 HO 287 distance=0' 21219+4049 GRV 456 distance=19' 21217+4053 ES 1691 distance=24' 21221+4011 ES 2518 distance=28' 21257+4043 COU2306 distance=32' 21204+4017 RAO 451 distance=36' 21209+4010 UC 259AB distance=36' 21241+4002 ES 1994 distance=36' 21248+4106 COU2305 distance=37' 21215+4002 SEI1511 distance=39' 21212+4003 COU2230 distance=39' 21209+4002 LDS2512 distance=42' 21195+4048 TDT2903 distance=42' 21240+3954 TDT2944 distance=44' 21192+4026 LDS2508AB distance=46' 21260+4112 HDS3052 distance=50' 21259+3959 TDT2958 distance=50' 21192+4102 HO 602 distance=51' 21250+4122 ES 1692 distance=51' 21199+3957 SEI1506 distance=53' 21193+4108 TDT2901 distance=54' 21189+4102 HO 601AB distance=54' 21189+4102 HO 601AC distance=54' 21209+4127 HO 156 distance=57' 21224+3940 ALI1161 distance=57' 21264+3954 RAO 455 distance=57' 21267+3957 MLB1021 distance=57' 21279+4046 TDT2979 distance=57' 21199+3948 SEI1507 distance=59' 21191+3954 SEI1502 distance=61' 21196+3948 SEI1503AB distance=61' 21196+3948 SEI1504AC distance=61' 21196+3948 ABH 143AD distance=61' 21196+3948 ABH 143AE distance=61' 21196+3948 ABH 143AF distance=61' 21196+3948 ABH 143AG distance=61' 21196+3948 ABH 143AH distance=61' 21196+3948 ABH 143AI distance=61' 21176+4023 LDS2505 distance=65' 21275+3954 MLB 984 distance=66' 21180+4003 LDS2506 distance=67' 21174+4020 SEI1492 distance=67' 21281+4110 COU2231 distance=67' 21191+3944 SEI1501 distance=69' 21190+3945 STT 434AB distance=69' 21190+3945 ARY 5AC distance=69' 21286+4102 UC 262 distance=69' 21256+4138 A 618 distance=70' 21170+4020 SEI1487 distance=71' 21235+4147 TDT2939 distance=72' 21276+3944 MLB 985 distance=73' 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 21228+4031 HO 287 6 2.7
Show 21219+4049 GRV 456 56 36.5 19
Show 21217+4053 ES 1691 174 5.3 24
Show 21221+4011 ES 2518 247 2.7 28
Show 21257+4043 COU2306 18 0.7 32
Show 21204+4017 RAO 451 116 2.8 36
Show 21209+4010 UC 259 AB 110 55.0 36
Show 21241+4002 ES 1994 106 4.3 36
Show 21248+4106 COU2305 101 0.3 37
Show 21215+4002 SEI1511 283 28.5 39
Show 21212+4003 COU2230 81 0.4 39
Show 21209+4002 LDS2512 30 85.1 42
Show 21195+4048 TDT2903 9 0.4 42
Show 21240+3954 TDT2944 186 1.6 44
Show 21192+4026 LDS2508 AB 357 7.8 46
Show 21260+4112 HDS3052 260 0.2 50
Show 21259+3959 TDT2958 109 0.9 50
Show 21192+4102 HO 602 27 4.2 51
Show 21250+4122 ES 1692 313 3.8 51
Show 21199+3957 SEI1506 60 7.8 53
Show 21193+4108 TDT2901 306 0.5 54
Show 21189+4102 HO 601 AB 176 17.1 54
Show 21189+4102 HO 601 AC 82 56.7 54
Show 21209+4127 HO 156 50 2.2 57
Show 21224+3940 ALI1161 292 15.5 57
Show 21264+3954 RAO 455 345 1.4 57
Show 21267+3957 MLB1021 81 3.6 57
Show 21279+4046 TDT2979 135 0.4 57
Show 21199+3948 SEI1507 146 11.6 59
Show 21191+3954 SEI1502 274 13.1 61
Show 21196+3948 SEI1503 AB 278 9.7 61
Show 21196+3948 SEI1504 AC 66 22.5 61
Show 21196+3948 ABH 143 AD 119 104.7 61
Show 21196+3948 ABH 143 AE 161 54.4 61
Show 21196+3948 ABH 143 AF 229 50.9 61
Show 21196+3948 ABH 143 AG 45 111.9 61
Show 21196+3948 ABH 143 AH 66 86.5 61
Show 21196+3948 ABH 143 AI 74 124.3 61
Show 21176+4023 LDS2505 23 4.3 65
Show 21275+3954 MLB 984 94 5.2 66
Show 21180+4003 LDS2506 161 14.1 67
Show 21174+4020 SEI1492 246 24.6 67
Show 21281+4110 COU2231 35 0.1 67
Show 21191+3944 SEI1501 240 29.7 69
Show 21190+3945 STT 434 AB 122 24.4 69
Show 21190+3945 ARY 5 AC 317 97.2 69
Show 21286+4102 UC 262 199 48.3 69
Show 21256+4138 A 618 276 0.6 70
Show 21170+4020 SEI1487 238 21.2 71
Show 21235+4147 TDT2939 174 0.4 72
Show 21276+3944 MLB 985 256 3.3 73

 
 
WDS 21228+4031 : COMPONENTS
 
 
  A
B pa=4.8°
sep=2.66"
 
 
21228+4031 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 212301.74+403539.3 Mag 11.06 PmRA -9.00
PmDE -12.0 Tycho2 3186-01820-1
Tycho2
Tycho2 3186-01820-1 Pflag RAmdeg 320.75723563 DEmdeg 40.59425882
PmRA -8.8 PmDE -12.2 E RAmdeg 42 E DEmdeg 44
E pmRA 1.7 E pmDE 1.6 EpRAm 1984.74 EpDEm 1983.16
Num 3 Q RAmdeg 0.0 Q DEmdeg 2.5 Q pmRA 0.1
Q pmDE 2.5 BTmag 11.679 E BTmag 0.072 VTmag 11.061
E VTmag 0.070 Prox 26 TYC T HIP
CCDM RAdeg 320.75726222 DEdeg 40.59428722 EpRA 1990 1.74
EpDE 1990 1.64 E RAdeg 43.8 E DEdeg 46.2 Posflg D
Corr 0.0
 
 
21228+4031 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 212301.76+403542.0 Mag 11.16 PmRA -6.00
PmDE 17.0 Tycho2 3186-01820-2 Calc delta mag 0.1 Calc coord yes
Tycho2
Tycho2 3186-01820-2 Pflag RAmdeg 320.75736498 DEmdeg 40.59500636
PmRA -8.0 PmDE -3.6 E RAmdeg 41 E DEmdeg 43
E pmRA 2.4 E pmDE 2.2 EpRAm 1988.42 EpDEm 1987.58
Num 2 Q RAmdeg Q DEmdeg Q pmRA
Q pmDE BTmag 11.574 E BTmag 0.067 VTmag 11.157
E VTmag 0.075 Prox 26 TYC HIP
CCDM RAdeg 320.75738917 DEdeg 40.59501472 EpRA 1990 1.74
EpDE 1990 1.65 E RAdeg 42.4 E DEdeg 44.2 Posflg D
Corr 0.0