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Doubles in session


Current system
08521+0428
STF 1290
HD 75768


Nearby doubles
28' : 08510+0405
SKF 734

34' : 08507+0401
STF1286

50' : 08534+0513
A 2752

53' : 08524+0520
A 2900

56' : 08558+0424
BAL2825

58' : 08516+0525
CVR 513

61' : 08505+0333
BAL2351

62' : 08494+0341
A 2899

69' : 08487+0342
TDS6111

70' : 08540+0325
SLW 310

71' : 08522+0318
BAL2355

73' : 08492+0329
LEP 33

74' : 08568+0413
BAL2826

82' : 08501+0311
BAL2349

84' : 08465+0419
STF1267

87' : 08495+0311
SLW 300

88' : 08562+0531
CVR 516

91' : 08503+0301
BAL2350

92' : 08481+0317
BAL2348

93' : 08515+0256
BAL2354

95' : 08510+0255
BAL2352

97' : 08512+0253
BAL2353

99' : 08586+0429
SLW 318

99' : 08484+0550
AGC 3

99' : 08486+0304
A 2550

101' : 08581+0344
SKF 755



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.

08521+0428 STF 1290 (HD 75768)

 
 
08h 52m 03.40s +04° 27' 58.0" P.A. 325.00 sep 2.8 mag 7.40,9.24 Sp A2 dist. 202.84 pc (661.66 l.y.)
 
 
Coord 2000 08521+0428 Discov num STF1290 Comp Coord arcsec 2000 08 52 03.40 +04 27 58.0
Date first 1830 Date last 2017 Obs 32
Pa first 320 Pa last 324.7 P.A. Now (θ) 324.7°
Sep first 3.0 Sep last 2.775 Sep. Now (ρ) 2.775"
Mag pri 7.40 Mag sec 9.24 delta mag (ΔM) 1.84 Spectral class A2 (white)
Pri motion ra -005 Sec motion ra
Pri motion dec -006 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 75768 Constellation Hydra SAO 117208 HIP 43539
Tycho2 0220-00729-1 Gaia DR2 581822593771232768 HD 75768 GC 12239
BD BD+05 2073 Distance 202.84 Distance ly 661.66
 
 
WDS 08521+0428 STF 1290 (HD 75768) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
STFA (F. Struve DD - Appendix list #1) ...................
STFB (F. Struve DD - Appendix list #2) ...................
StF1833A Ma - Struve, F.G.W. 1833MmRAS...5...13H
StF1833A +Mc cited by Herschel (MemRAS 5, 13, 1833)
StF1833B Ma - Struve, F.G.W. 1833AN.....10..389B
StF1833B cited by Bessel (AN 10, 389, 1833)
StF1837 Ma - Struve, F.G.W. 1837AN.....14...249
StF1837 Stellarum duplicium et multiplicium mensurae micrometricae...
StF1837 (Dorpat, Academiae scientiarum caesareae petropolitaneifique), 1837
StF1844A Ma - Struve, F.G.W. 1844QB43.S66.......
StF1844A cited by Smyth (Cycle of Celestial Objects 2, 1844)
StF1852A Ma - Struve, F.G.W. .
StF1852A cited by Bishop (Bishop Obs. Astron. Observations 1852)
StF1865A Ma - Struve, F.G.W. 1865AN.....64...81E
StF1865A cited by Engelmann (AN 64, 81, #1518, 1865)
StF1875A Ma - Struve, F.G.W. 1875AN.....85..323D
StF1875A cited by Doberck, 1875 (see Dob1875b,f,g,h)
StF1878 Ma - Struve, F.G.W. .
StF1878 Pulkova Observations 9, 1878
StF1878B Ma - Struve, F.G.W. 1878Obs.....2..239G
StF1878B cited by Gledhill (Obs 2, 239, 1878)
StF1880A Ma - Struve, F.G.W. 1880Obs.....3..535G
StF1880A cited by Gledhill (Obs 3, 535, 1880)
StF1906A Ma - Struve, F.G.W. 1906QB821.B972.....
StF1906A cited in BDS (Burnham Double Star Cat.), 1906
StF1906B Ma - Struve, F.G.W. 1906MmRAS..56....1L
StF1906B cited by Lewis (MemRAS 56, 1, 1906)
StF1922A Ma - Struve, F.G.W. 1922AN....216...49R
StF1922A cited by Rabe (AN 216, 49, 1922)
StF1932A Ma - Struve, F.G.W. 1932QB821.A43......
StF1932A cited in ADS (Aitken Double Star Cat.), 1932
StF2002 - - Weis, J.
StF2002 F. G. W. Struve's double stars : the Dorpat catalogue; the Pulkovo catalogue
StF2002 USNO Library : QB 821 .S8 W49 2002
StF2022 - - email note from Jan Weis: 6 July 2022
StF9999 Ma - Struve, F.G.W. ...................
StF9999 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
08521+0428 STF1290 1998 29 326 2.8 7.40 9.24 A2 085203.40+042758.0
08521+0428 STF1290 2009 30 325 2.8 7.40 9.24 A2 085203.40+042758.0
08521+0428 STF1290 2017 31 325 2.8 7.40 9.24 A2 085203.40+042758.0

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

 
 
WDS 08521+0428 STF 1290 (HD 75768) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 08521+0428 STF 1290 (HD 75768) : MEASURES
 
 
No records found.

 
 
WDS 08521+0428 (HD 75768) : VIRTUAL EYEPIECE
 
 

08521+0428 STF1290A mag 7.4 Sp A2 08521+0428 STF1290B sep 2.8 P.A. 324.80 mag 9.24 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 08521+0428 (HD 75768) : ALADIN DSS IMAGE @ 08h 52m 03.40s +04° 27' 58.0"
 
 
 
 
WDS 08521+0428 STF 1290 (HD 75768) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

08521+0428 STF1290 distance=0' 08510+0405 SKF 734 distance=28' 08507+0401 STF1286 distance=34' 08534+0513 A 2752 distance=50' 08524+0520 A 2900 distance=53' 08558+0424 BAL2825 distance=56' 08516+0525 CVR 513 distance=58' 08505+0333 BAL2351 distance=61' 08494+0341 A 2899 distance=62' 08487+0342 TDS6111 distance=69' 08540+0325 SLW 310 distance=70' 08522+0318 BAL2355 distance=71' 08492+0329 LEP 33 distance=73' 08568+0413 BAL2826 distance=74' 08501+0311 BAL2349 distance=82' 08465+0419 STF1267 distance=84' 08495+0311 SLW 300 distance=87' 08562+0531 CVR 516 distance=88' 08503+0301 BAL2350 distance=91' 08481+0317 BAL2348 distance=92' 08515+0256 BAL2354 distance=93' 08510+0255 BAL2352 distance=95' 08512+0253 BAL2353 distance=97' 08586+0429 SLW 318 distance=99' 08484+0550 AGC 3 distance=99' 08486+0304 A 2550 distance=99' 08581+0344 SKF 755 distance=101' 08480+0308 BAL2347AB distance=101' 08480+0308 DAM1485AC distance=101' 08588+0449 SKF 515 distance=103' 08452+0414 HJ 5542 distance=104' 08570+0321 GRV1014 distance=110' 08537+0240 BAL2356 distance=112' 08594+0358 SKF1715 distance=114' 08443+0431 SKF 500 distance=116' 08543+0236 BAL1854 distance=117' 08442+0414 BAL2823 distance=119' 08440+0424 BAL2822 distance=122' 08472+0251 CVR1163 distance=122' 08557+0617 SKF 743 distance=123' 08440+0453 A 2898 distance=123' 08486+0237 A 2551 distance=123' 08482+0235 BU 335 distance=128' 08439+0508 A 2751 distance=128' 08478+0619 SKF 726 distance=128' 08484+0629 KAM 2 distance=132' 09008+0448 HDS1307AB distance=133' 09008+0448 LEP 34AB,C distance=133' 09008+0448 GII 165Aa,Ab distance=133' 08497+0637 ROE 33 distance=133' 09008+0455 DAM1517 distance=134' 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 08521+0428 STF1290 325 2.8
Show 08510+0405 SKF 734 343 2.1 28
Show 08507+0401 STF1286 82 29.2 34
Show 08534+0513 A 2752 231 5.1 50
Show 08524+0520 A 2900 314 0.7 53
Show 08558+0424 BAL2825 110 10.1 56
Show 08516+0525 CVR 513 229 20.7 58
Show 08505+0333 BAL2351 110 14.2 61
Show 08494+0341 A 2899 231 0.7 62
Show 08487+0342 TDS6111 94 0.6 69
Show 08540+0325 SLW 310 62 41.2 70
Show 08522+0318 BAL2355 334 11.2 71
Show 08492+0329 LEP 33 285 159.5 73
Show 08568+0413 BAL2826 294 16.4 74
Show 08501+0311 BAL2349 204 6.1 82
Show 08465+0419 STF1267 61 10.9 84
Show 08495+0311 SLW 300 98 16.3 87
Show 08562+0531 CVR 516 114 19.5 88
Show 08503+0301 BAL2350 334 6.6 91
Show 08481+0317 BAL2348 164 16.2 92
Show 08515+0256 BAL2354 40 8.6 93
Show 08510+0255 BAL2352 297 19.4 95
Show 08512+0253 BAL2353 197 15.5 97
Show 08586+0429 SLW 318 59 33.4 99
Show 08484+0550 AGC 3 146 12.1 99
Show 08486+0304 A 2550 204 0.4 99
Show 08581+0344 SKF 755 139 2.1 101
Show 08480+0308 BAL2347 AB 204 4.0 101
Show 08480+0308 DAM1485 AC 204 4.0 101
Show 08588+0449 SKF 515 165 1.6 103
Show 08452+0414 HJ 5542 137 65.0 104
Show 08570+0321 GRV1014 71 25.5 110
Show 08537+0240 BAL2356 300 14.2 112
Show 08594+0358 SKF1715 335 1.4 114
Show 08443+0431 SKF 500 226 1.8 116
Show 08543+0236 BAL1854 350 19.5 117
Show 08442+0414 BAL2823 74 15.4 119
Show 08440+0424 BAL2822 208 12.6 122
Show 08472+0251 CVR1163 307 4.1 122
Show 08557+0617 SKF 743 44 3.6 123
Show 08440+0453 A 2898 76 1.7 123
Show 08486+0237 A 2551 158 0.1 123
Show 08482+0235 BU 335 265 2.6 128
Show 08439+0508 A 2751 13 1.5 128
Show 08478+0619 SKF 726 213 1.4 128
Show 08484+0629 KAM 2 177 2.6 132
Show 09008+0448 HDS1307 AB 34 0.6 133
Show 09008+0448 LEP 34 AB,C 257 12.3 133
Show 09008+0448 GII 165 Aa,Ab 121 0.1 133
Show 08497+0637 ROE 33 261 5.0 133
Show 09008+0455 DAM1517 105 3.5 134

 
 
WDS 08521+0428 : COMPONENTS
 
 
  A
B pa=324.8°
sep=2.77"
 
 
08521+0428 A
 
 
Componente originario normalizzato AB Name HD 75768 Coord arcsec 2000 085203.40+042758.0 Mag 7.4
Spectral class A2 (white) PmRA -5.00 PmDE -6.0 SAO 117208
HIP 43539 Tycho2 0220-00729-1 HD 75768 GC 12239
BD BD+05 2073
Tycho2
Tycho2 0220-00729-1 Pflag RAmdeg 133.01415198 DEmdeg 4.46612357
PmRA -4.9 PmDE -6.2 E RAmdeg 5 E DEmdeg 5
E pmRA 1.5 E pmDE 1.4 EpRAm 1991.44 EpDEm 1991.31
Num 9 Q RAmdeg 0.8 Q DEmdeg 1.0 Q pmRA 0.9
Q pmDE 0.9 BTmag 7.522 E BTmag 0.016 VTmag 7.404
E VTmag 0.011 Prox 28 TYC T HIP 43539
CCDM A RAdeg 133.01416361 DEdeg 4.46613833 EpRA 1990 1.60
EpDE 1990 1.49 E RAdeg 4.6 E DEdeg 4.9 Posflg D
Corr 0.3
SAO
SAO 117208 DelFlag RA1950 PmRA1950 -0.0005
DE1950 PmDE1950 -0.015 Vmag 7.3 SpType A2
Double code Source 70 CatNum 12239 DM BD+05 2073
DMcomp BDsup HD 75768 M HD 0
GC 12239 RA1950rad 2.31007038 DE1950rad 0.08124076 PmRA2000 -0.0003
PmDE2000 -0.012
Hipparcos
Catalog H HIP 43539 Proxy H RAhms 08 52 03.40
DEdms +04 27 58.1 Vmag 7.2 VarFlag R Vmag H
RAdeg 133.014 DEdeg 4.46614 AstroRef A Plx 8.03
CCDM 08521+0428 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 324 Rho 2.841 HD 75768 BD BD+05 2073
CD CP Dm number +05 2073 VIred 0.12
SpType A2 R SpType Coord arcsec 2000 085203.40+042758.1
Hipparcos 2
HIP 43539 Sn 15 So 3 Nc 2
RArad 2.32153519 DErad 0.0779488231 Plx 4.93 PmRA -4.29
PmDE -0.58 E RArad 0.74 E DErad 0.69 E Plx 0.96
E pmRA 0.95 E pmDE 0.75 Hpmag 7.2538 E Hpmag 0.0011
SHp 0.007 VA 0 BV 0.171 E BV 0.012
VI 0.19
CCDM
Ccdm 08521+0428 RComp Comp A Note1
Note2 Discov num DRAs -2.57 DDEs -1.3
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.5 Sp A2 PmNote *
PmRA 8 PmDE 2 Dm number +05 2073 Cat1 BD
Name2 +04 1243 Cat2 AGK2/3 HD 75768 M HD
ADS BDS A 7055 M ADS BDS N IDS IDS 08468N0450A
HIC 43539
 
 
08521+0428 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 085203.29+042800.3 Mag 9.24 Calc delta mag 1.84
Calc coord yes
CCDM
Ccdm 08521+0428 RComp Comp B Note1
Note2 Discov num STF1290 DRAs DDEs
R dRAs Year 1834 Theta 320 Rho 3.0
Obs 15 Vmag 9.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 7055 M ADS BDS N IDS IDS 08468N0450B
HIC 43539