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Doubles in session


Current system
21487+3115
HJ 1695


Nearby doubles
10' : 21479+3117
HJ 1688

30' : 21494+3048
GRV 511

32' : 21494+3045
STF2829

41' : 21455+3113
TDT3141

41' : 21501+3151
BU 692AB

44' : 21511+3046
DEA 89

53' : 21457+3152
J 2356

56' : 21449+3145
ES 381

59' : 21444+3140
HJ 1686

60' : 21516+3030
MLB 669

62' : 21534+3115
TDT3217

68' : 21451+3026
TDT3136

73' : 21441+3203
J 2355

75' : 21441+3205
J 2354AB

77' : 21487+3231
GRV 508

77' : 21469+3229
GYL 65

77' : 21532+3205
ES 2322AB

78' : 21431+3149
A 1222

79' : 21487+3233
GRV 510

79' : 21530+3210
KPP4254

85' : 21422+3100
OSO 154AB

88' : 21457+2957
TDT3145

89' : 21544+3204
TDT3227

90' : 21509+3240
ES 382AB

90' : 21544+3206
COU1042

90' : 21458+2954
TDT3146



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.

21487+3115 HJ 1695

 
 
21h 48m 36.40s +31° 15' 17.1" P.A. 115.00 sep 13.3 mag 10.97,12.10
 
 
Coord 2000 21487+3115 Discov num HJ 1695 Comp Coord arcsec 2000 21 48 36.40 +31 15 17.1
Date first 1828 Date last 2015 Obs 11
Pa first 114 Pa last 115 P.A. Now (θ) 115°
Sep first 7.0 Sep last 13.287 Sep. Now (ρ) 13.287"
Mag pri 10.97 Mag sec 12.10 delta mag (ΔM) 1.13 Spectral class
Pri motion ra -014 Sec motion ra -010
Pri motion dec -009 Sec motion dec -007
Notes
rPM=0.269 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 2718-02113-1 Gaia DR2 1945748694807869312
 
 
WDS 21487+3115 HJ 1695 : NOTES
 
 
No records found.

 
 
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
21487+3115 HJ 1695 1999 4 115 13.3 10.97 12.10 D 214836.40+311517.1
21487+3115 HJ 1695 2002 6 115 13.3 10.97 12.10 D 214836.40+311517.1
21487+3115 HJ 1695 2010 7 115 13.1 10.97 12.10 214836.40+311517.1
21487+3115 HJ 1695 2015 8 115 13.3 10.97 12.10 214836.40+311517.1

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

 
 
WDS 21487+3115 HJ 1695 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21487+3115 HJ 1695 : MEASURES
 
 
No records found.

 
 
WDS 21487+3115 : VIRTUAL EYEPIECE
 
 

21487+3115 HJ 1695A mag 10.97 21487+3115 HJ 1695B sep 11.7 P.A. 118.60 mag 12.1 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 21487+3115 : ALADIN DSS IMAGE @ 21h 48m 36.40s +31° 15' 17.1"
 
 
 
 
WDS 21487+3115 HJ 1695 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21487+3115 HJ 1695 distance=0' 21479+3117 HJ 1688 distance=10' 21494+3048 GRV 511 distance=30' 21494+3045 STF2829 distance=32' 21455+3113 TDT3141 distance=41' 21501+3151 BU 692AB distance=41' 21501+3151 FOX 264AD distance=41' 21501+3151 FOX 264AE distance=41' 21501+3151 BU 692AC distance=41' 21501+3151 BU 692BC distance=41' 21511+3046 DEA 89 distance=44' 21457+3152 J 2356 distance=53' 21449+3145 ES 381 distance=56' 21444+3140 HJ 1686 distance=59' 21516+3030 MLB 669 distance=60' 21534+3115 TDT3217 distance=62' 21451+3026 TDT3136 distance=68' 21441+3203 J 2355 distance=73' 21441+3205 DAM 235BC distance=75' 21441+3205 J 2354AB distance=75' 21487+3231 GRV 508 distance=77' 21469+3229 GYL 65 distance=77' 21532+3205 ES 2322AB distance=77' 21532+3205 ES 2322AD distance=77' 21532+3205 ES 2322DE distance=78' 21532+3205 ES 2322BC distance=78' 21431+3149 A 1222 distance=78' 21487+3233 GRV 510 distance=79' 21530+3210 KPP4254 distance=79' 21422+3100 OSO 154AB distance=85' 21422+3100 OSO 154AC distance=85' 21422+3100 OSO 154AD distance=85' 21422+3100 OSO 154AE distance=85' 21457+2957 TDT3145 distance=88' 21544+3204 TDT3227 distance=89' 21509+3240 ES 382AB distance=90' 21509+3240 ES 382AC distance=90' 21509+3240 FYM 143AF distance=90' 21544+3206 COU1042 distance=90' 21458+2954 TDT3146 distance=90' 21509+3240 FYM 143CD distance=90' 21509+3240 FYM 143CE distance=90' 21509+3240 FYM 143CF distance=90' 21429+3014 TDT3119 distance=96' 21487+3251 ES 2386 distance=96' 21455+2948 DAM 237 distance=96' 21559+3141 ES 2360 distance=97' 21458+2945 DAM 236 distance=98' 21492+3254 ES 2265 distance=100' 21409+3122 AG 275 distance=100' 21412+3043 J 3143 distance=101' 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 21487+3115 HJ 1695 115 13.3
Show 21479+3117 HJ 1688 351 16.4 10
Show 21494+3048 GRV 511 228 40.4 30
Show 21494+3045 STF2829 15 17.1 32
Show 21455+3113 TDT3141 358 2.5 41
Show 21501+3151 BU 692 AB 10 2.9 41
Show 21501+3151 FOX 264 AD 150 40.2 41
Show 21501+3151 FOX 264 AE 178 54.5 41
Show 21501+3151 BU 692 AC 292 40.9 41
Show 21501+3151 BU 692 BC 292 40.8 41
Show 21511+3046 DEA 89 204 14.8 44
Show 21457+3152 J 2356 135 6.3 53
Show 21449+3145 ES 381 110 4.6 56
Show 21444+3140 HJ 1686 229 13.7 59
Show 21516+3030 MLB 669 309 3.2 60
Show 21534+3115 TDT3217 327 4.2 62
Show 21451+3026 TDT3136 0.8 68
Show 21441+3203 J 2355 346 3.5 73
Show 21441+3205 DAM 235 BC 206 6.5 75
Show 21441+3205 J 2354 AB 199 4.9 75
Show 21487+3231 GRV 508 8 48.6 77
Show 21469+3229 GYL 65 30 66.0 77
Show 21532+3205 ES 2322 AB 52 35.7 77
Show 21532+3205 ES 2322 AD 352 62.1 77
Show 21532+3205 ES 2322 DE 276 5.0 78
Show 21532+3205 ES 2322 BC 147 5.1 78
Show 21431+3149 A 1222 352 0.7 78
Show 21487+3233 GRV 510 98 26.5 79
Show 21530+3210 KPP4254 337 2.2 79
Show 21422+3100 OSO 154 AB 25 15.3 85
Show 21422+3100 OSO 154 AC 239 15.8 85
Show 21422+3100 OSO 154 AD 166 16.4 85
Show 21422+3100 OSO 154 AE 108 19.6 85
Show 21457+2957 TDT3145 250 2.2 88
Show 21544+3204 TDT3227 175 1.3 89
Show 21509+3240 ES 382 AB 310 9.9 90
Show 21509+3240 ES 382 AC 322 58.1 90
Show 21509+3240 FYM 143 AF 298 26.0 90
Show 21544+3206 COU1042 108 1.4 90
Show 21458+2954 TDT3146 359 2.5 90
Show 21509+3240 FYM 143 CD 90 46.9 90
Show 21509+3240 FYM 143 CE 112 45.1 90
Show 21509+3240 FYM 143 CF 160 36.3 90
Show 21429+3014 TDT3119 157 2.7 96
Show 21487+3251 ES 2386 232 4.8 96
Show 21455+2948 DAM 237 233 6.3 96
Show 21559+3141 ES 2360 226 4.2 97
Show 21458+2945 DAM 236 143 5.9 98
Show 21492+3254 ES 2265 25 3.4 100
Show 21409+3122 AG 275 13 10.9 100
Show 21412+3043 J 3143 262 6.6 101

 
 
WDS 21487+3115 : COMPONENTS
 
 
  A
B pa=118.6°
sep=11.73"
 
 
21487+3115 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 214836.40+311517.1 Mag 10.97 PmRA -14.00
PmDE -9.0 Tycho2 2718-02113-1
Tycho2
Tycho2 2718-02113-1 Pflag RAmdeg 327.15168041 DEmdeg 31.25477203
PmRA -13.5 PmDE -7.7 E RAmdeg 27 E DEmdeg 32
E pmRA 1.9 E pmDE 1.9 EpRAm 1987.14 EpDEm 1986.74
Num 5 Q RAmdeg 0.4 Q DEmdeg 1.2 Q pmRA 0.4
Q pmDE 1.2 BTmag 11.357 E BTmag 0.053 VTmag 10.970
E VTmag 0.055 Prox 999 TYC T HIP
CCDM RAdeg 327.15171861 DEdeg 31.25478750 EpRA 1990 1.59
EpDE 1990 1.93 E RAdeg 30.6 E DEdeg 35.7 Posflg
Corr 0.0
 
 
21487+3115 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 214837.20+311511.5 Mag 12.1 PmRA -10.00
PmDE -7.0 Calc delta mag 1.13 Calc coord yes