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Current system
21174+3203
HJ 931


Nearby doubles
4' : 21171+3203
FOX9054

20' : 21158+3159
TDT2868

23' : 21160+3217
SEI1482

24' : 21162+3145
TDT2871

28' : 21182+3227
GRV 444

35' : 21146+3157
GRV 437

36' : 21148+3216
SEI1463

40' : 21198+3138
GRV 445

43' : 21157+3235
HJ 1628

48' : 21207+3226
POP 201

49' : 21148+3238
TOB 218

50' : 21149+3240
HJ 1627

51' : 21138+3225
DAM1261

51' : 21208+3227
STT 437AB

53' : 21132+3202
J 3127AB

53' : 21218+3230
HLM 40

54' : 21203+3240
GRV 449

54' : 21155+3114
TDT2862

55' : 21152+3251
HEI 284AB

59' : 21128+3210
TDT2827

60' : 21132+3228
SEI1451

64' : 21125+3217
SEI1443

65' : 21205+3107
J 3135

67' : 21226+3158
HJ 1637AB

67' : 21136+3249
TDT2837

69' : 21223+3139
ES 377AB



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.

21174+3203 HJ 931

 
 
21h 17m 21.56s +32° 02' 30.8" P.A. 356.00 sep 9.9 mag 9.50,10.64 Sp G0
 
 
Coord 2000 21174+3203 Discov num HJ  931 Comp Coord arcsec 2000 21 17 21.56 +32 02 30.8
Date first 1827 Date last 2015 Obs 35
Pa first 40 Pa last 355.5 P.A. Now (θ) 355.5°
Sep first 12.0 Sep last 9.88 Sep. Now (ρ) 9.88"
Mag pri 9.50 Mag sec 10.64 delta mag (ΔM) 1.14 Spectral class G0 (yellow)
Pri motion ra +037 Sec motion ra -008
Pri motion dec +005 Sec motion dec -005
Notes U (Proper motion indicates non-physical)
rPM=1.235
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 2706-02537-1 Gaia DR2 1854414497280739584
 
 
WDS 21174+3203 HJ 931 : 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
21174+3203 HJ 931 2008 14 358 9.9 9.50 10.64 G0 LD 211721.56+320230.8
21174+3203 HJ 931 2010 17 357 9.8 9.50 10.64 G0 LD 211721.56+320230.8
21174+3203 HJ 931 2011 20 357 10.0 9.50 10.64 G0 LD 211721.56+320230.8
21174+3203 HJ 931 2013 23 356 9.9 9.50 10.64 G0 L 211721.56+320230.8
21174+3203 HJ 931 2015 25 356 9.9 9.50 10.64 G0 L 211721.56+320230.8

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

 
 
WDS 21174+3203 HJ 931 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21174+3203 HJ 931 : MEASURES
 
 
No records found.

 
 
WDS 21174+3203 : VIRTUAL EYEPIECE
 
 

21174+3203 HJ 931A mag 9.5 Sp G0 21174+3203 HJ 931B sep 9.9 P.A. 356.20 mag 10.64 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 21174+3203 : ALADIN DSS IMAGE @ 21h 17m 21.56s +32° 02' 30.8"
 
 
 
 
WDS 21174+3203 HJ 931 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21174+3203 HJ 931 distance=1' 21171+3203 FOX9054 distance=4' 21158+3159 TDT2868 distance=20' 21160+3217 SEI1482 distance=23' 21162+3145 TDT2871 distance=24' 21182+3227 GRV 444 distance=28' 21146+3157 GRV 437 distance=35' 21148+3216 SEI1463 distance=36' 21198+3138 GRV 445 distance=40' 21157+3235 HJ 1628 distance=43' 21207+3226 POP 201 distance=48' 21148+3238 TOB 218 distance=49' 21149+3240 HJ 1627 distance=50' 21138+3225 DAM1261 distance=51' 21208+3227 STT 437AB distance=51' 21208+3227 STT 437AC distance=51' 21132+3202 J 3127AB distance=53' 21132+3202 J 3127AC distance=53' 21218+3230 HLM 40 distance=53' 21203+3240 GRV 449 distance=54' 21155+3114 TDT2862 distance=54' 21152+3251 HEI 284AB distance=55' 21152+3251 HEI 284AC distance=55' 21128+3210 TDT2827 distance=59' 21132+3228 SEI1451 distance=60' 21125+3217 SEI1443 distance=64' 21205+3107 J 3135 distance=65' 21226+3158 HJ 1637AB distance=67' 21226+3158 DAL 15AC distance=67' 21136+3249 TDT2837 distance=67' 21223+3139 ES 377BC distance=68' 21223+3139 ES 377AB distance=69' 21194+3306 J 1228 distance=69' 21133+3248 KPP2620 distance=70' 21119+3216 SEI1440 distance=71' 21118+3211 SEI1438 distance=72' 21229+3149 J 2344 distance=72' 21131+3249 SEI1446 distance=72' 21230+3202 HO 157 distance=72' 21216+3253 GYL 54 distance=74' 21229+3142 GRV 458 distance=74' 21180+3049 COU1183 distance=74' 21155+3313 TOB 215 distance=75' 21156+3314 GYL 51 distance=76' 21151+3313 TOB 217 distance=76' 21153+3051 GRV 439 distance=76' 21231+3144 HDS3046AB distance=76' 21231+3144 DAM 229AC distance=76' 21156+3315 TOB 216 distance=77' 21142+3058 COU 834 distance=77' 21225+3123 KPP1063 distance=78' 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 21174+3203 HJ 931 356 9.9 1
Show 21171+3203 FOX9054 358 6.1 4
Show 21158+3159 TDT2868 185 2.0 20
Show 21160+3217 SEI1482 197 19.9 23
Show 21162+3145 TDT2871 230 3.3 24
Show 21182+3227 GRV 444 250 36.1 28
Show 21146+3157 GRV 437 204 51.6 35
Show 21148+3216 SEI1463 127 26.6 36
Show 21198+3138 GRV 445 278 36.2 40
Show 21157+3235 HJ 1628 252 15.1 43
Show 21207+3226 POP 201 203 7.1 48
Show 21148+3238 TOB 218 295 21.8 49
Show 21149+3240 HJ 1627 182 2.5 50
Show 21138+3225 DAM1261 339 19.4 51
Show 21208+3227 STT 437 AB 19 2.5 51
Show 21208+3227 STT 437 AC 144 79.6 51
Show 21132+3202 J 3127 AB 159 1.6 53
Show 21132+3202 J 3127 AC 194 12.3 53
Show 21218+3230 HLM 40 23 15.5 53
Show 21203+3240 GRV 449 327 64.2 54
Show 21155+3114 TDT2862 305 0.5 54
Show 21152+3251 HEI 284 AB 26 4.3 55
Show 21152+3251 HEI 284 AC 224 8.7 55
Show 21128+3210 TDT2827 297 2.5 59
Show 21132+3228 SEI1451 250 27.7 60
Show 21125+3217 SEI1443 139 25.6 64
Show 21205+3107 J 3135 97 4.0 65
Show 21226+3158 HJ 1637 AB 104 13.4 67
Show 21226+3158 DAL 15 AC 142 8.3 67
Show 21136+3249 TDT2837 93 0.7 67
Show 21223+3139 ES 377 BC 211 2.2 68
Show 21223+3139 ES 377 AB 291 48.7 69
Show 21194+3306 J 1228 281 3.7 69
Show 21133+3248 KPP2620 346 24.1 70
Show 21119+3216 SEI1440 110 17.0 71
Show 21118+3211 SEI1438 93 22.5 72
Show 21229+3149 J 2344 227 6.7 72
Show 21131+3249 SEI1446 155 8.7 72
Show 21230+3202 HO 157 26 3.6 72
Show 21216+3253 GYL 54 137 22.2 74
Show 21229+3142 GRV 458 123 43.4 74
Show 21180+3049 COU1183 16 0.3 74
Show 21155+3313 TOB 215 232 16.2 75
Show 21156+3314 GYL 51 102 43.1 76
Show 21151+3313 TOB 217 268 16.4 76
Show 21153+3051 GRV 439 127 21.5 76
Show 21231+3144 HDS3046 AB 329 4.8 76
Show 21231+3144 DAM 229 AC 22 14.2 76
Show 21156+3315 TOB 216 135 14.2 77
Show 21142+3058 COU 834 77 7.9 77
Show 21225+3123 KPP1063 321 8.4 78

 
 
WDS 21174+3203 : COMPONENTS
 
 
  A
B pa=356.2°
sep=9.87"
 
 
21174+3203 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 211721.56+320230.8 Mag 9.5 Spectral class G0 (yellow)
PmRA 37.00 PmDE 5.0 Tycho2 2706-02537-1
Tycho2
Tycho2 2706-02537-1 Pflag RAmdeg 319.33985387 DEmdeg 32.04190053
PmRA 38.9 PmDE 4.9 E RAmdeg 11 E DEmdeg 11
E pmRA 1.1 E pmDE 1.1 EpRAm 1990.19 EpDEm 1990.24
Num 10 Q RAmdeg 1.0 Q DEmdeg 0.7 Q pmRA 1.0
Q pmDE 0.7 BTmag 10.172 E BTmag 0.023 VTmag 9.503
E VTmag 0.017 Prox 101 TYC T HIP
CCDM RAdeg 319.33974500 DEdeg 32.04188917 EpRA 1990 1.47
EpDE 1990 1.57 E RAdeg 11.3 E DEdeg 10.9 Posflg
Corr 0.1
CCDM
Ccdm 21174+3203 RComp Comp A Note1
Note2 Discov num DRAs -2.53 DDEs -29.3
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.6 Sp PmNote *
PmRA 27 PmDE 6 Dm number +31 4403 Cat1 BD
Name2 +31 2164 Cat2 AGK2/3 HD M HD
ADS BDS B10873 M ADS BDS N IDS IDS 21131N3138A
HIC
 
 
21174+3203 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 211721.51+320240.6 Mag 10.64 PmRA -8.00
PmDE -5.0 Tycho2 2706-03801-1 Calc delta mag 1.14 Calc coord yes
Tycho2
Tycho2 2706-03801-1 Pflag RAmdeg 319.33982114 DEmdeg 32.04468256
PmRA -7.6 PmDE -9.9 E RAmdeg 24 E DEmdeg 24
E pmRA 1.2 E pmDE 1.2 EpRAm 1986.12 EpDEm 1986.03
Num 9 Q RAmdeg 0.9 Q DEmdeg 1.3 Q pmRA 0.9
Q pmDE 1.2 BTmag 11.014 E BTmag 0.040 VTmag 10.643
E VTmag 0.042 Prox 101 TYC T HIP
CCDM RAdeg 319.33984222 DEdeg 32.04470528 EpRA 1990 1.51
EpDE 1990 1.53 E RAdeg 24.6 E DEdeg 25.2 Posflg
Corr 0.1
CCDM
Ccdm 21174+3203 RComp Comp B Note1
Note2 Discov num HJ 931 DRAs -2.53 DDEs -18.5
R dRAs 10 Year 1894 Theta 020 Rho 12.1
Obs 2 Vmag 10.0 Sp PmNote *
PmRA -19 PmDE -1 Dm number Cat1
Name2 +31 2165 Cat2 AGK2/3 HD M HD
ADS BDS B10873 M ADS BDS N IDS IDS 21131N3138B
HIC