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Current system
21056+1749
J 797


Nearby doubles
34' : 21080+1748
LDS4865

36' : 21063+1824
BPM2326

39' : 21083+1757
BPM2332

44' : 21041+1712
GWP3033

47' : 21061+1836
TDS1116

48' : 21089+1748
HU 365

52' : 21041+1837
KPP 546

54' : 21087+1717
HEI 184

57' : 21029+1708
BPMA250

58' : 21089+1715
HEI 185

58' : 21094+1809
SLN 89

60' : 21039+1844
BRT2489

61' : 21088+1709
TDT2783

62' : 21094+1721
STF2763AB

63' : 21079+1656
UC 4385

63' : 21013+1757
BOY 11

66' : 21079+1851
HO 150

67' : 21033+1655
J 284

69' : 21008+1756
TDT2692

77' : 21109+1801
COU 69

78' : 21081+1857
J 3125

81' : 21017+1652
BPM2311AB

83' : 20599+1741
KPP1329

84' : 21017+1851
UC 4363

87' : 21044+1625
BPM2317

87' : 21099+1648
BPM2335



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.

21056+1749 J 797

 
 
21h 05m 37.30s +17° 49' 46.5" P.A. 214.00 sep 4.1 mag 12.10,13.30
 
 
Coord 2000 21056+1749 Discov num J   797 Comp Coord arcsec 2000 21 05 37.30 +17 49 46.5
Date first 1912 Date last 2017 Obs 8
Pa first 215 Pa last 213.9 P.A. Now (θ) 213.9°
Sep first 2.5 Sep last 4.08 Sep. Now (ρ) 4.08"
Mag pri 12.10 Mag sec 13.30 delta mag (ΔM) 1.2 Spectral class
Pri motion ra +002 Sec motion ra
Pri motion dec -009 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Delphinus Tycho2 1653-01452-1 Gaia DR2 1764258215987522176
 
 
WDS 21056+1749 J 797 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
J__1908 Ma - Jonckheere, R. 1908BuAsI..25..458J
J__1908 Bull. Astronomique 25, 458, 1908
J__1909a Ma - Jonckheere, R. ...................
J__1909a Journal Astronomique 1, no. 1, 1, 1909
J__1909b Ma - Jonckheere, R. ...................
J__1909b Journal Astronomique 1, no. 2, 1909
J__1909c Ma - Jonckheere, R. ...................
J__1909c Journal Astronomique 1, no. 3, 1909
J__1910a Ma j Jonckheere, R. ...................
J__1910a Journal Astronomique 1, no. 4, 25, 1910
J__1910b Ma - Jonckheere, R. ...................
J__1910b Journal Astronomique 1, no. 5, 1910
J__1910c Ma j Jonckheere, R. ...................
J__1910c Journal Astronomique 1, no. 7, 1910
J__1910d Ma - Jonckheere, R. ...................
J__1910d Journal Astronomique 1, no. 7, 1910
J__1910e Ma j Jonckheere, R. ...................
J__1910e Journal Astronomique 1, no. 7, 1910
J__1910f Ma j Jonckheere, R. ...................
J__1910f Journal Astronomique 1, no. 10, 77, 1910
J__1910g Ma - Jonckheere, R. ...................
J__1910g Journal Astronomique 1, no. 11, 81, 1910
J__1910h Ma j Jonckheere, R. ...................
J__1910h Journal Astronomique 1, no. 12, 89, 1910
J__1910i Ma j Jonckheere, R. ...................
J__1910i Journal Astronomique 1, no. 13, 98, 1910
J__1911a Ma - Jonckheere, R. ...................
J__1911a Journal Astronomique 1, no. 15, 114, 1911
J__1911b Ma j Jonckheere, R. ...................
J__1911b Journal Astronomique 1, no. 16, 121, 1911
J__1911c Ma j Jonckheere, R. 1911MNRAS..71..750J
J__1911c MNRAS 71, 750, 1911
J__1911d Ma - Jonckheere, R. 1911MNRAS..72...45J
J__1911d MNRAS 72, 45, 1911
J__1911e Ma - Jonckheere, R. 1911MNRAS..72..156J
J__1911e MNRAS 72, 156, 1911
J__1911f Ma j Jonckheere, R. 1911MNRAS..72..162J
J__1911f MNRAS 72, 162, 1911
J__1912a Ma j Jonckheere, R. 1912MNRAS..72..188J
J__1912a MNRAS 72, 188, 1912
J__1912b Ma j Jonckheere, R. ...................
J__1912b Journal Astronomique 1, no. 17, 129, 1912
J__1912c Ma - Jonckheere, R. ...................
J__1912c Journal Astronomique 1, no. 19, 134, 1912
J__1912d Ma j Jonckheere, R. ...................
J__1912d Journal Astronomique 1, no. 21, 145, 1912
J__1912e Ma - Jonckheere, R. ...................
J__1912e Journal Astronomique 1, no. 22, 148, 1912
J__1912f Ma j Jonckheere, R. ...................
J__1912f Journal Astronomique 1, no. 23, 150, 1912
J__1912g Ma j Jonckheere, R. ...................
J__1912g Journal Astronomique 2, no. 25, 1, 1912
J__1912h Ma - Jonckheere, R. ...................
J__1912h Journal Astronomique 2, no. 26, 5, 1912
J__1913a Ma j Jonckheere, R. ...................
J__1913a Journal Astronomique 2, no. 27, 9, 1913
J__1913b Ma j Jonckheere, R. ...................
J__1913b Journal Astronomique 2, no. 28, 13, 1913
J__1914 Ma - Jonckheere, R. ...................
J__1914 Journal Astronomique 2, no. 29, 18, 1914
J__1917a Ma - Jonckheere, R. 1917MmRAS..61....1J
J__1917a MemRAS 61, 1, 1917
J__1917c Ma j Jonckheere, R. 1917AJ.....31....1J
J__1917c AJ 31, 1, 1917
J__1918 Ma - Jonckheere, R. 1918AJ.....31..113J
J__1918 AJ 31, 113, 1918
J__1918b Ma j Jonckheere, R. 1918MNRAS..78..479J
J__1918b MNRAS 78, 479, 1918
J__1919 Ma j Jonckheere, R. 1919AJ.....32...65J
J__1919 AJ 32, 65, 1919
J__1920 Ma - Jonckheere, R. 1920AJ.....32..166J
J__1920 AJ 32, 166, 1920
J__1924 Ma - Jonckheere, R. 1924AJ.....35..173J
J__1924 +Mb AJ 35, 173, 1924
J__1930 Ma j Jonckheere, R. 1930JO.....13...76J
J__1930 J. Obs. 13, 76, 1930
J__1941a Ma - Jonckheere, R. 1941JO.....24...21J
J__1941a J. Obs. 24, 21, 1941
J__1941b Ma - Jonckheere, R. 1941JO.....24...69J
J__1941b +Mb J. Obs. 24, 69, 1941
J__1941c Ma - Jonckheere, R. 1941JO.....24...93J
J__1941c +Mb J. Obs. 24, 93, 1941
J__1941d Ma - Jonckheere, R. 1941JO.....24..114J
J__1941d +Mb J. Obs. 24, 114, 1941
J__1942a Ma - Jonckheere, R. 1942JO.....25...11J
J__1942a J. Obs. 25, 11, 1942
J__1942b Ma - Jonckheere, R. 1942JO.....25...15J
J__1942b J. Obs. 25, 15, 1942
J__1942c Ma - Jonckheere, R. 1942JO.....25...25J
J__1942c +Mb J. Obs. 25, 25, 1942
J__1942d Mb - Jonckheere, R. 1942JO.....25...78J
J__1942d J. Obs. 25, 78, 1942
J__1943 Ma - Jonckheere, R. 1943JO.....26...28J
J__1943 +Mb J. Obs. 26, 28, 1943
J__1944a Ma j Jonckheere, R. 1944JO.....27....1J
J__1944a +Mb J. Obs. 27, 1, 1944
J__1944b Ma - Jonckheere, R. 1944JO.....27....5J
J__1944b J. Obs. 27, 5, 1944
J__1944c Mb - Jonckheere, R. 1944JO.....27....6J
J__1944c J. Obs. 27, 6, 1944
J__1944d Ma j Jonckheere, R. 1944JO.....27....7J
J__1944d +Mb J. Obs. 27, 7, 1944
J__1944e Ma - Jonckheere, R. 1944JO.....27...11J
J__1944e J. Obs. 27, 11, 1944
J__1945 Ma - Jonckheere, R. 1945JO.....28...26J
J__1945 +Mb J. Obs. 28, 26, 1945
J__1946 Mb j Jonckheere, R. 1946JO.....29...49J
J__1946 J. Obs. 29, 49, 1946
J__1948 Ma j Jonckheere, R. 1948JO.....31...65J
J__1948 J. Obs. 31, 65, 1948
J__1949a Ma j Jonckheere, R. 1949JO.....32...13J
J__1949a +Mb J. Obs. 32, 13, 1949
J__1949b Ma j Jonckheere, R. 1949JO.....32...81J
J__1949b +Mb J. Obs. 32, 81, 1949
J__1952 M+ j Jonckheere, R. 1952JO.....35...37J
J__1952 +Pa J. Obs. 35, 37, 1952
J__1953a Ma - Jonckheere, R. 1953JO.....36...44J
J__1953a J. Obs. 36, 44, 1953
J__1953b Mb j Jonckheere, R. 1953JO.....36...49J
J__1953b J. Obs. 36, 49, 1953
J__1954 Mb j Jonckheere, R. 1954JO.....37...13J
J__1954 J. Obs. 37, 13, 1954
J__1955 Mb - Jonckheere, R. 1955JO.....38..254J
J__1955 J. Obs. 38, 254, 1955
J__1957 Mb j Jonckheere, R. 1957JO.....40....1J
J__1957 J. Obs. 40, 1, 1957
J__1958 Mb j Jonckheere, R. 1958JO.....41..145J
J__1958 J. Obs. 41, 145, 1958
J__1962a M+ j Jonckheere, R. 1962QB821.J64......
J__1962a +Pa General Cat. of Double Stars, Marseille, 1962
J__1962b Ma - Jonckheere, R. (measure by Vanderdonck, J.) 1962QB821.J64......
J__1962b General Cat. of Double Stars, Marseille, 1962
J__1963A - Jonckheere, R. 1963icvd.book.....J
J__1963A cited in IDS (Lick Index Cat.), 1963
J__9999 Ma - Jonckheere, R. ...................
J__9999 +Pp Unpublished, manuscript or reference not found.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21056+1749 J 797 1971 5 213 3.4 9.50 11.00
21056+1749 J 797 2000 6 214 3.4 12.30 13.80 210537.30+174946.5
21056+1749 J 797 2010 7 203 3.4 12.10 13.30 210537.30+174946.5
21056+1749 J 797 2017 8 213 4.1 12.10 13.30 210537.30+174946.5

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

 
 
WDS 21056+1749 J 797 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21056+1749 J 797 : MEASURES
 
 
No records found.

 
 
WDS 21056+1749 : VIRTUAL EYEPIECE
 
 

21056+1749 J 797A mag 12.1 21056+1749 J 797B sep 4.0 P.A. 212.60 mag 13.3 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 21056+1749 : ALADIN DSS IMAGE @ 21h 05m 37.30s +17° 49' 46.5"
 
 
 
 
WDS 21056+1749 J 797 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21056+1749 J 797 distance=0' 21080+1748 LDS4865 distance=34' 21063+1824 BPM2326 distance=36' 21083+1757 BPM2332 distance=39' 21041+1712 GWP3033 distance=44' 21061+1836 TDS1116 distance=47' 21089+1748 HU 365 distance=48' 21041+1837 KPP 546 distance=52' 21087+1717 HEI 184 distance=54' 21029+1708 BPMA250 distance=57' 21089+1715 HEI 185 distance=58' 21094+1809 SLN 89 distance=58' 21039+1844 BRT2489 distance=60' 21088+1709 TDT2783 distance=61' 21094+1721 STF2763BC distance=62' 21094+1721 STF2763AB distance=62' 21079+1656 UC 4385 distance=63' 21013+1757 BOY 11 distance=63' 21079+1851 HO 150 distance=66' 21033+1655 J 284 distance=67' 21008+1756 TDT2692 distance=69' 21109+1801 COU 69 distance=77' 21081+1857 J 3125 distance=78' 21017+1652 BPM2312BC distance=80' 21017+1652 BPM2311AB distance=81' 20599+1741 KPP1329 distance=83' 21017+1851 UC 4363 distance=84' 21044+1625 BPM2317 distance=87' 21099+1648 BPM2335 distance=87' 21111+1704 HEI 187 distance=91' 21091+1906 COU 329 distance=91' 20593+1744 J 1716 distance=92' 21117+1821 LDS1051 distance=92' 21106+1650 HU 367 distance=93' 21111+1659 KPP 486 distance=93' 20595+1712 GRV 400 distance=95' 20589+1741 BRT2487 distance=97' 21120+1822 ZIE 12AB distance=97' 21120+1822 ZIE 12AC distance=97' 21125+1727 BPMA252 distance=102' 20598+1649 STTA213 distance=103' 21010+1910 COU 523 distance=104' 20587+1823 HU 363 distance=104' 21130+1802 J 577 distance=106' 21052+1936 HDS3005 distance=107' 21107+1909 J 2339 distance=107' 20582+1756 BPM2303 distance=107' 20587+1833 RAO 444 distance=108' 21126+1706 BPM2342 distance=109' 20588+1701 BPM2305 distance=109' 20596+1642 TDT2679 distance=110' 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 21056+1749 J 797 214 4.1
Show 21080+1748 LDS4865 106 147.9 34
Show 21063+1824 BPM2326 314 67.8 36
Show 21083+1757 BPM2332 327 113.5 39
Show 21041+1712 GWP3033 36 12.1 44
Show 21061+1836 TDS1116 265 1.2 47
Show 21089+1748 HU 365 19 1.0 48
Show 21041+1837 KPP 546 61 5.1 52
Show 21087+1717 HEI 184 62 2.9 54
Show 21029+1708 BPMA250 39 202.4 57
Show 21089+1715 HEI 185 35 0.1 58
Show 21094+1809 SLN 89 15 2.1 58
Show 21039+1844 BRT2489 246 5.4 60
Show 21088+1709 TDT2783 327 1.1 61
Show 21094+1721 STF2763 BC 227 30.2 62
Show 21094+1721 STF2763 AB 293 17.1 62
Show 21079+1656 UC 4385 334 56.4 63
Show 21013+1757 BOY 11 94 0.3 63
Show 21079+1851 HO 150 136 3.0 66
Show 21033+1655 J 284 236 2.7 67
Show 21008+1756 TDT2692 155 0.6 69
Show 21109+1801 COU 69 330 1.5 77
Show 21081+1857 J 3125 259 4.7 78
Show 21017+1652 BPM2312 BC 68 82.7 80
Show 21017+1652 BPM2311 AB 110 113.7 81
Show 20599+1741 KPP1329 129 10.1 83
Show 21017+1851 UC 4363 216 6.4 84
Show 21044+1625 BPM2317 186 91.4 87
Show 21099+1648 BPM2335 54 14.9 87
Show 21111+1704 HEI 187 255 1.2 91
Show 21091+1906 COU 329 99 0.6 91
Show 20593+1744 J 1716 223 6.3 92
Show 21117+1821 LDS1051 88 298.5 92
Show 21106+1650 HU 367 339 0.3 93
Show 21111+1659 KPP 486 334 3.9 93
Show 20595+1712 GRV 400 197 58.7 95
Show 20589+1741 BRT2487 120 4.4 97
Show 21120+1822 ZIE 12 AB 26 13.3 97
Show 21120+1822 ZIE 12 AC 268 298.4 97
Show 21125+1727 BPMA252 173 255.4 102
Show 20598+1649 STTA213 36 70.9 103
Show 21010+1910 COU 523 139 0.9 104
Show 20587+1823 HU 363 101 0.8 104
Show 21130+1802 J 577 19 2.4 106
Show 21052+1936 HDS3005 14 0.3 107
Show 21107+1909 J 2339 249 7.2 107
Show 20582+1756 BPM2303 131 120.5 107
Show 20587+1833 RAO 444 194 1.4 108
Show 21126+1706 BPM2342 220 72.4 109
Show 20588+1701 BPM2305 249 73.9 109
Show 20596+1642 TDT2679 61 0.6 110

 
 
WDS 21056+1749 : COMPONENTS
 
 
  A
B pa=212.6°
sep=4.02"
 
 
21056+1749 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 210537.30+174946.5 Mag 12.1 PmRA 2.00
PmDE -9.0 Tycho2 1653-01452-1
Tycho2
Tycho2 1653-01452-1 Pflag RAmdeg 316.40539099 DEmdeg 17.82960437
PmRA 1.0 PmDE -8.3 E RAmdeg 78 E DEmdeg 96
E pmRA 2.0 E pmDE 2.2 EpRAm 1970.90 EpDEm 1959.58
Num 3 Q RAmdeg 0.1 Q DEmdeg 0.5 Q pmRA 0.2
Q pmDE 0.5 BTmag 13.321 E BTmag 0.377 VTmag 11.902
E VTmag 0.175 Prox 999 TYC HIP
CCDM RAdeg 316.40538833 DEdeg 17.82962389 EpRA 1990 1.63
EpDE 1990 1.37 E RAdeg 88.0 E DEdeg 118.1 Posflg
Corr 0.0
 
 
21056+1749 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 210537.15+174943.1 Mag 13.3 Calc delta mag 1.2
Calc coord yes