19088+3446 STF 2470 (HD 178849)

 
 
19h 08m 45.20s +34° 45' 37.1" P.A. 267.00 sep 13.8 mag 7.03,8.44 Sp B5V dist. 719.42 pc (2346.75 l.y.)
 
 
Coord 2000 19088+3446 Discov num STF2470 Comp Coord arcsec 2000 19 08 45.20 +34 45 37.1
Date first 1824 Date last 2017 Obs 63
Pa first 272 Pa last 267.3 P.A. Now (θ) 267.3°
Sep first 13.1 Sep last 13.8 Sep. Now (ρ) 13.8"
Mag pri 7.03 Mag sec 8.44 delta mag (ΔM) 1.41 Spectral class B5V (blue-white)
Pri motion ra +004 Sec motion ra +001
Pri motion dec +001 Sec motion dec -004
Notes N (See Notes)
rPM=1.414
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 178849 Constellation Lyra SAO 67870 HIP 94039
Tycho2 2648-02147-1 Gaia DR2 2044533728593913088 HD 178849 GC 26392
BD BD+34 3436 Distance 719.42 Distance ly 2346.75
 
 
WDS 19088+3446 STF 2470 (HD 178849) : NOTES
 
 
discov_num notes refcode
STF2470 B is BD+34 3436. A is a spectroscopic binary.
 
 
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
19088+3446 STF2470 2007 50 268 13.7 7.03 8.44 B5V N D 190845.20+344537.1
19088+3446 STF2470 2010 53 269 13.8 7.03 8.44 B5V N D 190845.20+344537.1
19088+3446 STF2470 2013 56 267 13.9 7.03 8.44 B5V N D 190845.20+344537.1
19088+3446 STF2470 2014 57 268 13.8 7.03 8.44 B5V N D 190845.20+344537.1
19088+3446 STF2470 2017 59 267 13.8 7.03 8.44 B5V N 190845.20+344537.1

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WDS 19088+3446 STF 2470 (HD 178849) : VISUAL OBSERVATIONS REPORTS
 
 
Show date username difficulty separation pa_estim interest notes
Show 23/11/25 Diego Vercelli very easy separated 260 enought interesting Same FOV STF2474.

 
 
WDS 19088+3446 STF 2470 (HD 178849) : MEASURES
 
 
No records found.

 
 
WDS 19088+3446 (HD 178849) : VIRTUAL EYEPIECE
 
 

19088+3446 STF2470A mag 7.03 Sp B5V 19088+3446 STF2470B sep 11.3 P.A. 266.70 mag 8.44 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.

Radius:
Components only
 
 
WDS 19088+3446 (HD 178849) : ALADIN DSS IMAGE @ 19h 08m 45.20s +34° 45' 37.1"
 
 
 
 
WDS 19088+3446 STF 2470 (HD 178849) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


19088+3446  STF2470 distance=0' 19091+3436  CHR  84Aa,Ab distance=11' 19091+3436  STF2474AB distance=11' 19091+3436  WAL 105AC distance=11' 19098+3430  KPP4140 distance=21' 19088+3419  POP  30 distance=27' 19069+3505  POP  18 distance=31' 19059+3502  BKO  58DE distance=38' 19059+3502  BKO  58BC distance=38' 19059+3502  BKO  58BD distance=38' 19059+3502  HZG  13AB distance=39' 19059+3502  BKO  58AC distance=39' 19089+3404  COU1462Aa,Ab distance=42' 19089+3404  TOK 327AB distance=42' 19069+3410  WFC 217 distance=43' 19077+3402  ES 2288 distance=45' 19106+3530  ALI 145 distance=51' 19129+3427  ES 2289 distance=55' 19129+3510  HU  942 distance=57' 19071+3539  TDT1231 distance=57' 19066+3355  ZUL   1 distance=58' 19072+3350  HEI 806AB distance=59' 19072+3350  HEI 806AC distance=59' 19132+3420  COU1616 distance=61' 19041+3425  TDT1207 distance=62' 19137+3454  ES 2238 distance=62' 19060+3354  TDS 965 distance=62' 19108+3545  TDT1278 distance=65' 19045+3406  J  1209 distance=67' 19125+3534  CRC  33 distance=67' 19055+3352  HU  940 distance=67' 19141+3433  GMC  26 distance=67' 19120+3543  ALI 146 distance=70' 19039+3409  BU 1285AB distance=70' 19039+3409  BU 1285AC distance=70' 19132+3400  ES 2290AB distance=72' 19132+3400  ES 2290AB,C distance=72' 19132+3400  ES 2290AB,D distance=72' 19061+3549  COU1614 distance=72' 19145+3434  BU  975BC distance=72' 19145+3434  STT 367A,BC distance=72' 19145+3434  HO  648AD distance=72' 19145+3434  RAO  84AE distance=72' 19142+3413  STT 366AB distance=76' 19142+3413  ES 2675AC distance=76' 19142+3413  WAL 106AD distance=76' 19060+3553  H 5 103 distance=76' 19142+3413  ES 2675CD distance=76' 19147+3506  ES 2239 distance=77' 19074+3601  COU1615 distance=77' 19061+3335  TDT1223 distance=78' grafico limitrofi
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Pass over with the mouse cursor to display the catalog designation.

Show name coord_2000 discov# comp pa sep dist(')
Show 19088+3446 STF2470 267 13.8
Show 19091+3436 CHR 84 Aa,Ab 114 0.1 11
Show 19091+3436 STF2474 AB 262 16.0 11
Show 19091+3436 WAL 105 AC 126 97.5 11
Show 19098+3430 KPP4140 236 35.7 21
Show 19088+3419 POP 30 316 2.3 27
Show 19069+3505 POP 18 213 4.3 31
Show 19059+3502 BKO 58 DE 140 14.3 38
Show 19059+3502 BKO 58 BC 292 13.9 38
Show 19059+3502 BKO 58 BD 184 46.7 38
Show 19059+3502 HZG 13 AB 137 27.4 39
Show 19059+3502 BKO 58 AC 159 16.0 39
Show 19089+3404 COU1462 Aa,Ab 32 0.2 42
Show 19089+3404 TOK 327 AB 47 44.4 42
Show 19069+3410 WFC 217 335 7.7 43
Show 19077+3402 ES 2288 60 4.5 45
Show 19106+3530 ALI 145 308 14.4 51
Show 19129+3427 ES 2289 198 1.7 55
Show 19129+3510 HU 942 278 1.7 57
Show 19071+3539 TDT1231 269 0.9 57
Show 19066+3355 ZUL 1 165 1.4 58
Show 19072+3350 HEI 806 AB 89 3.3 59
Show 19072+3350 HEI 806 AC 224 4.1 59
Show 19132+3420 COU1616 132 0.3 61
Show 19041+3425 TDT1207 125 2.4 62
Show 19137+3454 ES 2238 218 2.2 62
Show 19060+3354 TDS 965 165 1.4 62
Show 19108+3545 TDT1278 25 2.0 65
Show 19045+3406 J 1209 155 4.4 67
Show 19125+3534 CRC 33 127 12.0 67
Show 19055+3352 HU 940 187 0.4 67
Show 19141+3433 GMC 26 205 19.0 67
Show 19120+3543 ALI 146 123 7.9 70
Show 19039+3409 BU 1285 AB 289 11.2 70
Show 19039+3409 BU 1285 AC 208 41.8 70
Show 19132+3400 ES 2290 AB 328 2.7 72
Show 19132+3400 ES 2290 AB,C 77 16.3 72
Show 19132+3400 ES 2290 AB,D 67 27.0 72
Show 19061+3549 COU1614 117 0.5 72
Show 19145+3434 BU 975 BC 261 1.0 72
Show 19145+3434 STT 367 A,BC 226 34.6 72
Show 19145+3434 HO 648 AD 93 15.7 72
Show 19145+3434 RAO 84 AE 73 2.9 72
Show 19142+3413 STT 366 AB 230 21.8 76
Show 19142+3413 ES 2675 AC 139 26.6 76
Show 19142+3413 WAL 106 AD 116 22.6 76
Show 19060+3553 H 5 103 55 56.9 76
Show 19142+3413 ES 2675 CD 16 10.9 76
Show 19147+3506 ES 2239 46 8.8 77
Show 19074+3601 COU1615 96 0.4 77
Show 19061+3335 TDT1223 41 2.5 78

 
 
WDS 19088+3446 : COMPONENTS
 
 
  A
B pa=266.7°
sep=11.34"
 
 
19088+3446 A
 
 
Componente originario normalizzato AB Name HD 178849 Coord arcsec 2000 190845.20+344537.1 Mag 7.03
Spectral class B5V (blue-white) PmRA 4.00 PmDE 1.0 SAO 67870
HIP 94043 Tycho2 2648-02147-1 HD 178849 GC 26392
BD BD+34 3437
Tycho2
Tycho2 2648-02147-1 Pflag RAmdeg 287.18831571 DEmdeg 34.76029973
PmRA 0.2 PmDE -3.4 E RAmdeg 4 E DEmdeg 4
E pmRA 1.6 E pmDE 1.7 EpRAm 1991.45 EpDEm 1991.55
Num 11 Q RAmdeg 1.0 Q DEmdeg 1.2 Q pmRA 0.9
Q pmDE 1.1 BTmag 6.884 E BTmag 0.014 VTmag 7.031
E VTmag 0.010 Prox 138 TYC T HIP 94043
CCDM A RAdeg 287.18831500 DEdeg 34.76030778 EpRA 1990 1.58
EpDE 1990 1.66 E RAdeg 4.0 E DEdeg 3.8 Posflg
Corr 0.0
SAO
SAO 67870 DelFlag RA1950 PmRA1950 0.0002
DE1950 PmDE1950 -0.004 Vmag 6.6 SpType B3
Double code Source 70 CatNum 26392 DM BD+34 3437
DMcomp BDsup HD 178849 M HD 0
GC 26392 RA1950rad 5.00442093 DE1950rad 0.6052646 PmRA2000 0.0005
PmDE2000 -0.004
Hipparcos
Catalog H HIP 94043 Proxy RAhms 19 08 45.19
DEdms +34 45 37.1 Vmag 7.04 VarFlag R Vmag H
RAdeg 287.188 DEdeg 34.7603 AstroRef A Plx 2.47
CCDM 19088+3446 N CCDM I Nsys 2 Ncomp 1
MultFlag C Source P Qual A M HIP
Theta Rho HD 178849 BD BD+34 3437
CD CP Dm number +34 3437 VIred -0.14
SpType B3V R SpType Coord arcsec 2000 190845.19+344537.1
Hipparcos 2
HIP 94043 Sn 95 So 3 Nc 1
RArad 5.0123816112 DErad 0.6066818196 Plx 0.08 PmRA 5.58
PmDE -4.54 E RArad 0.99 E DErad 1.02 E Plx 1.31
E pmRA 1.17 E pmDE 1.17 Hpmag 7.0019 E Hpmag 0.0082
SHp 0.048 VA 0 BV -0.127 E BV 0.005
VI -0.12
CCDM
Ccdm 19088+3446 RComp Comp A Note1
Note2 Discov num DRAs -2.75 DDEs -23.7
R dRAs 10 Year Theta Rho
Obs 2 Vmag 6.6 Sp B3 PmNote *
PmRA 8 PmDE -21 Dm number +34 3437 Cat1 BD
Name2 +34 1803 Cat2 AGK2/3 HD 178849 M HD
ADS BDS A12093 M ADS BDS N IDS IDS 19051N3436A
HIC 94043
 
 
19088+3446 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 190844.28+344536.4 Mag 8.44 PmRA 1.00
PmDE -4.0 HIP 94039 BD BD+34 3436 Calc delta mag 1.41
Calc coord yes
Hipparcos
Catalog H HIP 94039 Proxy RAhms 19 08 44.08
DEdms +34 45 36.7 Vmag 8.48 VarFlag R Vmag H
RAdeg 287.184 DEdeg 34.7602 AstroRef B Plx 6.68
CCDM 19088+3446 N CCDM I Nsys 2 Ncomp 1
MultFlag C Source I Qual A M HIP
Theta Rho HD BD BD+34 3436
CD CP Dm number +34 3436 VIred 0.04
SpType A2 R SpType Coord arcsec 2000 190844.08+344536.7
Hipparcos 2
HIP 94039 Sn 95 So 3 Nc 1
RArad 5.0123004406 DErad 0.606679826 Plx -1.39 PmRA 3.66
PmDE -2.45 E RArad 1.47 E DErad 1.51 E Plx 1.94
E pmRA 1.74 E pmDE 1.62 Hpmag 8.6354 E Hpmag 0.0256
SHp 0 VA 0 BV 0.061 E BV 0.015
VI 0.07
CCDM
Ccdm 19088+3446 RComp Comp B Note1
Note2 Discov num STF2470 DRAs -3.91 DDEs -23.5
R dRAs 10 Year 1829 Theta 271 Rho 13.4
Obs 14 Vmag 8.6 Sp PmNote *
PmRA -4 PmDE -8 Dm number +34 3436 Cat1 BD
Name2 +34 1802 Cat2 AGK2/3 HD M HD
ADS BDS A12093 M ADS BDS N IDS IDS 19051N3436B
HIC 94039