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Current system
20278+0311
HJ 917


Nearby doubles
10' : 20274+0317
BAL2025

25' : 20291+0325
HJ 2968

31' : 20294+0330
HJ 2970

34' : 20257+0304
BAL2024

37' : 20302+0321
DOO 87

41' : 20283+0351
BAL2533

42' : 20286+0351
HJ 2967

44' : 20307+0311
BAL2029

47' : 20247+0302
J 1342

52' : 20298+0227
BAL2027

56' : 20251+0233
BAL2023

59' : 20253+0355
UC 4175

62' : 20251+0225
LDS4841

63' : 20306+0224
BAL2028

67' : 20321+0251
BAL2030

68' : 20309+0400
BAL2538

72' : 20321+0330
J 2573

76' : 20310+0211
J 561

78' : 20267+0155
J 155AB

78' : 20263+0156
BAL1557

83' : 20302+0156
BAL1562

89' : 20221+0331
UC 4158

91' : 20266+0143
BAL1558

91' : 20281+0140
BAL1560

92' : 20285+0443
J 3220

96' : 20341+0256
BAL2031



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.

20278+0311 HJ 917

 
 
20h 27m 50.92s +03° 10' 38.5" P.A. 37.00 sep 12.8 mag 11.92,12.67
 
 
Coord 2000 20278+0311 Discov num HJ  917 Comp Coord arcsec 2000 20 27 50.92 +03 10 38.5
Date first 1909 Date last 2015 Obs 9
Pa first 36 Pa last 36.6 P.A. Now (θ) 36.6°
Sep first 13.1 Sep last 12.796 Sep. Now (ρ) 12.796"
Mag pri 11.92 Mag sec 12.67 delta mag (ΔM) 0.75 Spectral class
Pri motion ra -001 Sec motion ra +014
Pri motion dec -009 Sec motion dec -016
Notes N (See Notes)
rPM=0.779
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Delphinus Tycho2 0501-02411-1 Gaia DR2 4244711368273471488
 
 
WDS 20278+0311 HJ 917 : NOTES
 
 
discov_num notes refcode
HJ 917 BAL2026.
 
 
REFERENCES
 
 
refcode metd author reference
HJ_1826 Mb - Herschel, J.F.W. 1826MmRAS...2..459H
HJ_1826 MemRAS 2, 459, 1826
HJ_1829a Mb - Herschel, J.F.W. 1829MmRAS...3...47H
HJ_1829a MemRAS 3, 47, 1829
HJ_1829b Mb - Herschel, J.F.W. 1829MmRAS...3..177H
HJ_1829b MemRAS 3, 177, 1829
HJ_1831 Ma - Herschel, J.F.W. 1831MmRAS...4..331H
HJ_1831 +Mb MemRAS 4, part 2, 331, 1831
HJ_1833a Ma - Herschel, J.F.W. 1833MmRAS...5...13H
HJ_1833a +Mb MemRAS 5, 13, 1833
HJ_1833b orb - Herschel, J.F.W. 1833MmRAS...5..171H
HJ_1833b MemRAS 5, 171, 1833
HJ_1833c Mb - Herschel, J.F.W. 1833MmRAS...6....1H
HJ_1833c MemRAS 6, 1, 1833
HJ_1833d orb - Herschel, J.F.W. 1833MmRAS...6..149H
HJ_1833d MemRAS 6, 149, 1833
HJ_1835 Ma - Herschel, J.F.W. 1835MmRAS...8...37H
HJ_1835 +Mb MemRAS 8, 37, 1835
HJ_1836 Mb - Herschel, J.F.W. 1836MmRAS...9..193H
HJ_1836 MemRAS 9, 193, 1836
HJ_1847a Ma j Herschel, J.F.W. .
HJ_1847a +Mb Cape Results, London, 1847 (Cape of Good Hope Astronomical Observations 1834-1838)
HJ_1847b Ma j Herschel, J.F.W. .
HJ_1847b Cape Results, London, 1847
HJ_1850 orb - Herschel, J.F.W. 1850MmRAS..18...47H
HJ_1850 MemRAS 18, 47, 1850
HJ_1870 Mb - Herschel, J.F.W. 1870MmRAS..38....1H
HJ_1870 MemRAS 38, 1, 1870
HJ_1874A - Herschel, J.F.W. 1874MNRAS..35...28B
HJ_1874A cited by Burnham (MNRAS 35, 28, 1874)
HJ_1875A Ma - Herschel, J.F.W. 1875AN.....85..323D
HJ_1875A +Mb cited by Doberck, 1875 (see Dob1875b,f,g,h)
HJ_1880A Ma - Herschel, J.F.W. 1880Obs.....3..508G
HJ_1880A +Mb cited by Gledhill (Obs 3, 508, 1880)
HJ_1880B Mb - Herschel, J.F.W. 1880MNRAS..40..497B
HJ_1880B cited by Burnham (MNRAS 40, 497, 1880)
HJ_1897A Ma j Herschel, J.F.W. 1897MNRAS..57..541S
HJ_1897A cited by See (MNRAS 57, 541, 1897)
HJ_1905A Ma - Herschel, J.F.W. 1905LicOB...3..147A
HJ_1905A +Mb cited by Aitken (Lick Obs. Bull. 3, 147, 1905)
HJ_1906A Ma - Herschel, J.F.W. 1906MmRAS..56....1L
HJ_1906A +Mb cited by Lewis (MemRAS 56, 1, 1906)
HJ_1906B Ma - Herschel, J.F.W. 1906QB821.B972.....
HJ_1906B +Mb cited in BDS (Burnham Double Star Cat.), 1906
HJ_1927A Mb - Herschel, J.F.W. 1927sdsc.book......
HJ_1927A cited in SDS (Southern Double Star Catalog), 1927
HJ_1932A Mb - Herschel, J.F.W. 1932QB821.A43......
HJ_1932A cited in ADS (Aitken Double Star Cat.), 1932
HJ_9999 M j Herschel, J.F.W. ...................
HJ_9999 +Ma 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
20278+0311 HJ 917 2000 5 37 12.8 11.92 12.30 N D 202750.92+031038.5
20278+0311 HJ 917 2010 6 37 12.7 11.92 12.67 N 202750.92+031038.5
20278+0311 HJ 917 2015 7 37 12.8 11.92 12.67 N 202750.92+031038.5

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

 
 
WDS 20278+0311 HJ 917 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20278+0311 HJ 917 : MEASURES
 
 
No records found.

 
 
WDS 20278+0311 : VIRTUAL EYEPIECE
 
 

20278+0311 HJ 917A mag 11.92 20278+0311 HJ 917B sep 12.8 P.A. 36.60 mag 12.67 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 20278+0311 : ALADIN DSS IMAGE @ 20h 27m 50.92s +03° 10' 38.5"
 
 
 
 
WDS 20278+0311 HJ 917 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20278+0311 HJ 917 distance=0' 20274+0317 BAL2025 distance=10' 20291+0325 HJ 2968 distance=25' 20294+0330 HJ 2970 distance=31' 20257+0304 BAL2024 distance=34' 20302+0321 DOO 87 distance=37' 20283+0351 BAL2533 distance=41' 20286+0351 HJ 2967 distance=42' 20307+0311 BAL2029 distance=44' 20247+0302 J 1342 distance=47' 20298+0227 BAL2027 distance=52' 20251+0233 BAL2023 distance=56' 20253+0355 UC 4175 distance=59' 20251+0225 LDS4841 distance=62' 20306+0224 BAL2028 distance=63' 20321+0251 BAL2030 distance=67' 20309+0400 BAL2538 distance=68' 20321+0330 J 2573 distance=72' 20310+0211 J 561 distance=76' 20267+0155 J 155BC distance=77' 20267+0155 J 155AB distance=78' 20263+0156 BAL1557 distance=78' 20302+0156 BAL1562 distance=83' 20221+0331 UC 4158 distance=89' 20266+0143 BAL1558 distance=91' 20281+0140 BAL1560 distance=91' 20285+0443 J 3220 distance=92' 20341+0256 BAL2031 distance=96' 20291+0135 GWP2956AB distance=98' 20291+0135 GWP2957AC distance=98' 20214+0336 BAL2532AB distance=100' 20214+0336 BAL2532AC distance=100' 20213+0250 HLD 158 distance=101' 20293+0132 BAL1561 distance=102' 20324+0426 A 2281 distance=102' 20212+0249 TOK 730 distance=103' 20347+0321 CRC 38 distance=104' 20330+0201 TDT2361 distance=104' 20311+0444 UC 4205 distance=105' 20253+0133 BAL1556 distance=106' 20228+0156 TDT2221 distance=107' 20225+0155 HJ 2955 distance=108' 20315+0444 BAL2966 distance=109' 20253+0453 KPP4195AB distance=110' 20353+0239 HJ 2981 distance=117' 20200+0308 HJ 913 distance=118' 20199+0254 TDT2175 distance=120' 20351+0218 UC 4224 distance=121' 20340+0433 A 2282 distance=125' 20327+0453 J 2314AB distance=126' 20327+0453 J 2314AC distance=126' 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 20278+0311 HJ 917 37 12.8
Show 20274+0317 BAL2025 94 10.2 10
Show 20291+0325 HJ 2968 50 15.3 25
Show 20294+0330 HJ 2970 180 12.0 31
Show 20257+0304 BAL2024 70 16.1 34
Show 20302+0321 DOO 87 33 11.9 37
Show 20283+0351 BAL2533 256 19.0 41
Show 20286+0351 HJ 2967 131 7.1 42
Show 20307+0311 BAL2029 141 7.5 44
Show 20247+0302 J 1342 333 2.4 47
Show 20298+0227 BAL2027 171 4.2 52
Show 20251+0233 BAL2023 330 7.4 56
Show 20253+0355 UC 4175 87 20.7 59
Show 20251+0225 LDS4841 246 44.6 62
Show 20306+0224 BAL2028 196 9.5 63
Show 20321+0251 BAL2030 286 10.8 67
Show 20309+0400 BAL2538 202 10.8 68
Show 20321+0330 J 2573 151 4.0 72
Show 20310+0211 J 561 176 4.3 76
Show 20267+0155 J 155 BC 164 3.3 77
Show 20267+0155 J 155 AB 348 53.1 78
Show 20263+0156 BAL1557 211 6.4 78
Show 20302+0156 BAL1562 308 9.0 83
Show 20221+0331 UC 4158 218 20.6 89
Show 20266+0143 BAL1558 9 18.3 91
Show 20281+0140 BAL1560 3 6.6 91
Show 20285+0443 J 3220 181 3.9 92
Show 20341+0256 BAL2031 334 17.4 96
Show 20291+0135 GWP2956 AB 250 16.5 98
Show 20291+0135 GWP2957 AC 258 172.4 98
Show 20214+0336 BAL2532 AB 271 5.3 100
Show 20214+0336 BAL2532 AC 22 7.3 100
Show 20213+0250 HLD 158 41 1.2 101
Show 20293+0132 BAL1561 8 15.8 102
Show 20324+0426 A 2281 63 1.9 102
Show 20212+0249 TOK 730 146 0.2 103
Show 20347+0321 CRC 38 300 10.5 104
Show 20330+0201 TDT2361 37 0.5 104
Show 20311+0444 UC 4205 254 48.5 105
Show 20253+0133 BAL1556 22 6.6 106
Show 20228+0156 TDT2221 260 0.7 107
Show 20225+0155 HJ 2955 246 14.1 108
Show 20315+0444 BAL2966 117 10.4 109
Show 20253+0453 KPP4195 AB 16 11.7 110
Show 20353+0239 HJ 2981 5 12.9 117
Show 20200+0308 HJ 913 144 9.6 118
Show 20199+0254 TDT2175 164 1.8 120
Show 20351+0218 UC 4224 220 16.1 121
Show 20340+0433 A 2282 166 0.2 125
Show 20327+0453 J 2314 AB 70 4.9 126
Show 20327+0453 J 2314 AC 138 19.0 126

 
 
WDS 20278+0311 : COMPONENTS
 
 
  A
B pa=36.6°
sep=12.79"
 
 
20278+0311 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 202750.92+031038.5 Mag 11.92 PmRA -1.00
PmDE -9.0 Tycho2 0501-02411-1
Tycho2
Tycho2 0501-02411-1 Pflag RAmdeg 306.96218111 DEmdeg 3.17735015
PmRA 0.4 PmDE -7.9 E RAmdeg 56 E DEmdeg 62
E pmRA 1.9 E pmDE 1.8 EpRAm 1974.43 EpDEm 1970.97
Num 4 Q RAmdeg 0.4 Q DEmdeg 0.7 Q pmRA 0.4
Q pmDE 0.8 BTmag 12.045 E BTmag 0.128 VTmag 11.922
E VTmag 0.181 Prox 999 TYC HIP
CCDM RAdeg 306.96218167 DEdeg 3.17737417 EpRA 1990 1.59
EpDE 1990 1.52 E RAdeg 78.1 E DEdeg 80.9 Posflg
Corr -0.3
CCDM
Ccdm 20278+0311 RComp Comp A Note1
Note2 Discov num DRAs 2.95 DDEs -21.8
R dRAs 65 Year Theta Rho
Obs 2 Vmag 10.1 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20228N0251A
HIC
 
 
20278+0311 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 202751.43+031048.8 Mag 12.67 PmRA 14.00
PmDE -16.0 Calc delta mag 0.75 Calc coord yes
CCDM
Ccdm 20278+0311 RComp Comp B Note1
Note2 Discov num BAL2026 DRAs 3.44 DDEs -11.6
R dRAs 65 Year 1909 Theta 036 Rho 13.0
Obs 2 Vmag 10.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20228N0251B
HIC