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Doubles in session


Current system
20177+3331
HJ 1500 AB
HD 228771


Nearby doubles
17' : 20189+3325
COU1948

18' : 20181+3315
SEI1072

21' : 20180+3311
BAR 11AB

21' : 20187+3315
STT 405

27' : 20169+3307
OSO 122AB

32' : 20154+3344
A 283

34' : 20153+3316
COU1808

37' : 20165+3406
J 785AB

39' : 20160+3403
SMA 115

39' : 20201+3357
RAO 519

41' : 20196+3259
SEI1083

42' : 20209+3346
NSN 2

45' : 20158+3409
TDT2127

50' : 20173+3420
SEI1064

51' : 20212+3304
DAM 314AB

51' : 20153+3412
DAM 205

52' : 20158+3417
DAM 206

56' : 20155+3415
GCB 51

56' : 20165+3238
GII 15

58' : 20223+3326
OSO 124AB

58' : 20169+3235
A 284

59' : 20150+3244
CVR 221

60' : 20192+3235
KLT 21AB

62' : 20132+3309
SKF1649

63' : 20189+3230
SEI1076

64' : 20127+3330
FAL 67



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.

20177+3331 HJ 1500 AB (HD 228771)

 
 
20h 17m 43.96s +33° 31' 18.7" P.A. 53.00 sep 17.7 mag 9.45,10.60 Sp F5
 
 
Coord 2000 20177+3331 Discov num HJ 1500 Comp AB Coord arcsec 2000 20 17 43.96 +33 31 18.7
Date first 1828 Date last 2015 Obs 17
Pa first 111 Pa last 53.3 P.A. Now (θ) 53.3°
Sep first 10.0 Sep last 17.7 Sep. Now (ρ) 17.7"
Mag pri 9.45 Mag sec 10.60 delta mag (ΔM) 1.15 Spectral class F5 (yellow-white)
Pri motion ra +015 Sec motion ra +051
Pri motion dec -031 Sec motion dec +044
Notes
rPM=1.235
This double is not physical.
 
 
20177+3331 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 228771 69767 20 17 44 +33 31 19 HJ 1500 AB 2015 17 53 17.7 9.45 10.60 1.15 <===
Show 69767 20 17 44 +33 31 19 HJ 1500 AC 2015 10 336 32.2 9.45 12.80 3.35
Show 69767 20 17 44 +33 31 19 HJ 1500 AD 2015 12 318 40.9 9.45 12.40 2.95
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 228771 Constellation Cygnus SAO 69767 Tycho2 2676-00756-1
Gaia DR2 2055377254020660864 HD 228771
 
 
WDS 20177+3331 HJ 1500 AB (HD 228771) : 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
20177+3331 HJ 1500 AB 1999 8 54 17.1 9.45 10.60 D 201743.96+333118.7
20177+3331 HJ 1500 AB 2002 10 53 17.2 9.45 10.60 D 201743.96+333118.7
20177+3331 HJ 1500 AB 2011 11 53 17.8 9.45 10.60 D 201743.96+333118.7
20177+3331 HJ 1500 AB 2013 12 52 18.0 9.45 10.60 F5 201743.96+333118.7
20177+3331 HJ 1500 AB 2015 13 53 17.7 9.45 10.60 F5 201743.96+333118.7

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

 
 
WDS 20177+3331 HJ 1500 AB (HD 228771) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20177+3331 HJ 1500 AB (HD 228771) : MEASURES
 
 
No records found.

 
 
WDS 20177+3331 (HD 228771) : VIRTUAL EYEPIECE
 
 

20177+3331 HJ 1500A mag 9.45 Sp F5 20177+3331 HJ 1500B sep 15.9 P.A. 48.20 mag 10.6 20177+3331 HJ 1500C sep 31.4 P.A. 339.50 mag 12.8 20177+3331 HJ 1500D sep 38.0 P.A. 322.60 mag 12.4 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 20177+3331 (HD 228771) : ALADIN DSS IMAGE @ 20h 17m 43.96s +33° 31' 18.7"
 
 
 
 
WDS 20177+3331 HJ 1500 AB (HD 228771) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20177+3331 HJ 1500AB distance=1' 20177+3331 HJ 1500AC distance=1' 20177+3331 HJ 1500AD distance=1' 20189+3325 COU1948 distance=17' 20181+3315 SEI1072 distance=18' 20180+3311 BAR 11AB distance=21' 20180+3311 HO 592AB,C distance=21' 20187+3315 STT 405 distance=21' 20169+3307 OSO 122AB distance=27' 20169+3307 OSO 122AC distance=27' 20169+3307 OSO 122AD distance=27' 20154+3344 A 283 distance=32' 20153+3316 COU1808 distance=34' 20165+3406 J 785AB distance=37' 20165+3406 J 785AC distance=37' 20160+3403 SMA 115 distance=39' 20201+3357 RAO 519 distance=39' 20196+3259 SEI1083 distance=41' 20209+3346 NSN 2 distance=42' 20158+3409 TDT2127 distance=45' 20173+3420 SEI1064 distance=50' 20212+3304 DAM 314AB distance=51' 20153+3412 DAM 205 distance=51' 20212+3304 MLB 772BC distance=52' 20158+3417 DAM 206 distance=52' 20155+3415 GCB 51 distance=56' 20165+3238 GII 15 distance=56' 20223+3326 OSO 124AB distance=58' 20223+3326 OSO 124AC distance=58' 20223+3326 OSO 124AD distance=58' 20223+3326 OSO 124AE distance=58' 20223+3326 OSO 124AF distance=58' 20169+3235 A 284 distance=58' 20150+3244 CVR 221 distance=59' 20192+3235 KLT 21AB distance=60' 20192+3235 KLT 21AC distance=60' 20192+3235 KLT 21BC distance=60' 20132+3309 SKF1649 distance=62' 20189+3230 SEI1076 distance=63' 20127+3330 FAL 67 distance=64' 20168+3435 TDT2137 distance=65' 20134+3253 SHN 242 distance=67' 20211+3424 SEI1096 distance=68' 20231+3342 COU1949 distance=68' 20190+3225 TDT2161 distance=69' 20121+3330 BKO 898 distance=71' 20233+3338 J 1231 distance=71' 20131+3411 STTA203 distance=71' 20120+3333 COU1631 distance=72' 20233+3351 J 786 distance=74' 20169+3218 SEI1060 distance=75' 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 20177+3331 HJ 1500 AB 53 17.7 1
Show 20177+3331 HJ 1500 AC 336 32.2 1
Show 20177+3331 HJ 1500 AD 318 40.9 1
Show 20189+3325 COU1948 340 0.1 17
Show 20181+3315 SEI1072 328 17.7 18
Show 20180+3311 BAR 11 AB 199 0.5 21
Show 20180+3311 HO 592 AB,C 255 3.1 21
Show 20187+3315 STT 405 150 0.8 21
Show 20169+3307 OSO 122 AB 11 16.2 27
Show 20169+3307 OSO 122 AC 271 20.9 27
Show 20169+3307 OSO 122 AD 117 22.5 27
Show 20154+3344 A 283 287 3.5 32
Show 20153+3316 COU1808 209 1.1 34
Show 20165+3406 J 785 AB 25 2.7 37
Show 20165+3406 J 785 AC 12 10.2 37
Show 20160+3403 SMA 115 188 19.0 39
Show 20201+3357 RAO 519 -1 0.2 39
Show 20196+3259 SEI1083 198 23.4 41
Show 20209+3346 NSN 2 190 5.2 42
Show 20158+3409 TDT2127 344 0.8 45
Show 20173+3420 SEI1064 254 23.9 50
Show 20212+3304 DAM 314 AB 124 34.5 51
Show 20153+3412 DAM 205 359 8.6 51
Show 20212+3304 MLB 772 BC 133 8.4 52
Show 20158+3417 DAM 206 174 5.0 52
Show 20155+3415 GCB 51 215 2.9 56
Show 20165+3238 GII 15 232 9.7 56
Show 20223+3326 OSO 124 AB -1 -1.0 58
Show 20223+3326 OSO 124 AC 308 11.4 58
Show 20223+3326 OSO 124 AD 129 14.6 58
Show 20223+3326 OSO 124 AE 41 20.3 58
Show 20223+3326 OSO 124 AF 228 23.1 58
Show 20169+3235 A 284 253 0.4 58
Show 20150+3244 CVR 221 56 35.9 59
Show 20192+3235 KLT 21 AB 185 1.3 60
Show 20192+3235 KLT 21 AC 187 1.2 60
Show 20192+3235 KLT 21 BC 324 0.1 60
Show 20132+3309 SKF1649 252 20.3 62
Show 20189+3230 SEI1076 196 13.1 63
Show 20127+3330 FAL 67 165 21.3 64
Show 20168+3435 TDT2137 110 0.6 65
Show 20134+3253 SHN 242 -1 0.2 67
Show 20211+3424 SEI1096 53 9.3 68
Show 20231+3342 COU1949 84 0.2 68
Show 20190+3225 TDT2161 37 1.1 69
Show 20121+3330 BKO 898 65 4.7 71
Show 20233+3338 J 1231 82 6.4 71
Show 20131+3411 STTA203 37 88.4 71
Show 20120+3333 COU1631 329 0.4 72
Show 20233+3351 J 786 93 3.4 74
Show 20169+3218 SEI1060 8 23.8 75

 
 
WDS 20177+3331 : COMPONENTS
 
 
  A B C
B pa=48.2°
sep=15.87"
 
C pa=339.5°
sep=31.36"
pa=309.5°
sep=29.57"
 
D pa=322.6°
sep=37.95"
pa=299.3°
sep=39.98"
pa=273.7°
sep=12.06"
 
 
20177+3331 A
 
 
Name HD 228771 Coord arcsec 2000 201743.96+333118.7 Mag 9.45 Spectral class F5 (yellow-white)
PmRA 15.00 PmDE -31.0 SAO 69767 Tycho2 2676-00756-1
HD 228771 DM BD+33 3843
Tycho2
Tycho2 2676-00756-1 Pflag RAmdeg 304.43318324 DEmdeg 33.52188095
PmRA 16.1 PmDE -29.5 E RAmdeg 12 E DEmdeg 10
E pmRA 1.4 E pmDE 1.4 EpRAm 1990.25 EpDEm 1990.60
Num 9 Q RAmdeg 1.1 Q DEmdeg 1.3 Q pmRA 1.1
Q pmDE 1.3 BTmag 9.925 E BTmag 0.022 VTmag 9.453
E VTmag 0.018 Prox 999 TYC T HIP
CCDM RAdeg 304.43313667 DEdeg 33.52194833 EpRA 1990 1.44
EpDE 1990 1.71 E RAdeg 12.1 E DEdeg 10.3 Posflg
Corr 0.1
SAO
SAO 69767 DelFlag RA1950 PmRA1950 0.002
DE1950 PmDE1950 -0.014 Vmag 9.1 SpType F0
Double code Source 6 CatNum 1930 DM BD+33 3843
DMcomp BDsup HD 228771 M HD 0
GC RA1950rad 5.30482845 DE1950rad 0.5823465 PmRA2000 0.0022
PmDE2000 -0.016
CCDM
Ccdm 20177+3331 RComp Comp A Note1
Note2 Discov num DRAs 1.94 DDEs 18.9
R dRAs 10 Year Theta Rho
Obs 4 Vmag 9.6 Sp F5 PmNote *
PmRA 26 PmDE -31 Dm number +33 3843 Cat1 BD
Name2 +33 1930 Cat2 AGK2/3 HD 228771 M HD
ADS BDS B10087 M ADS BDS N IDS IDS 20138N3313A
HIC
 
 
20177+3331 B
 
 
Coord arcsec 2000 201744.91+333129.3 Mag 10.6 PmRA 51.00 PmDE 44.0
Calc delta mag 1.15 Calc coord yes
CCDM
Ccdm 20177+3331 RComp Comp B Note1
Note2 Discov num HJ 1500 DRAs DDEs
R dRAs Year 1925 Theta 067 Rho 12.6
Obs 2 Vmag 10.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS B10087 M ADS BDS N IDS IDS 20138N3313B
HIC
 
 
20177+3331 C
 
 
Coord arcsec 2000 201743.08+333148.1 Mag 12.8 PmRA 0.00 PmDE -6.0
Calc delta mag 3.35 Calc coord yes
CCDM
Ccdm 20177+3331 RComp Comp C Note1
Note2 Discov num HJ 1500 DRAs DDEs
R dRAs Year 1925 Theta 338 Rho 30.1
Obs 2 Vmag 12.7 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS B10087 M ADS BDS N IDS IDS 20138N3313C
HIC
 
 
20177+3331 D
 
 
Coord arcsec 2000 201742.12+333148.9 Mag 12.4 PmRA 8.00 PmDE 7.0
Calc delta mag 2.95 Calc coord yes
CCDM
Ccdm 20177+3331 RComp Comp D Note1
Note2 Discov num HJ 1500 DRAs DDEs
R dRAs Year 1925 Theta 316 Rho 38.3
Obs 2 Vmag 12.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS B10087 M ADS BDS N IDS IDS 20138N3313D
HIC