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Doubles in session


Current system
21424+0027
STF 2817 AB


Nearby doubles
3' : 21426+0027
WAA9001

6' : 21423+0021
CHE 312

7' : 21428+0028
CHE 313

12' : 21417-0024
UC 4532

12' : 21424+0037
BAL1236AB

14' : 21427-0039
WAA9002

14' : 21426-0013
UC 4535

14' : 21417-0036
J 1409

15' : 21422+0040
CHE 311

19' : 21416+0013
CHE 308

22' : 21437+0030
CHE 315

23' : 21409-0035
J 1408

29' : 21435+0003
CHE 314

29' : 21406-0023
CVR 914

30' : 21406-0018
AOT 106

30' : 21415+0000
CHE 307

31' : 21435+0052
WAA9003

33' : 21421+0059
CHE 310

33' : 21404+0034
SMA 151

35' : 21444+0008
CHE 316

37' : 21406+0051
SLW1247

39' : 21421+0104
CHE 309

40' : 21404+0003
AOT 105

40' : 21451+0022
SLW1252

42' : 21447-0003
CHE 317

42' : 21452-0030
TOK 348



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.

21424+0027 STF 2817 AB

 
 
21h 42m 26.72s +00° 26' 44.0" P.A. 155.00 sep 26.1 mag 8.88,9.20 Sp F8
 
 
Coord 2000 21424+0027 Discov num STF2817 Comp AB Coord arcsec 2000 21 42 26.72 +00 26 44.0
Date first 1828 Date last 2016 Obs 39
Pa first 156 Pa last 155.1 P.A. Now (θ) 155.1°
Sep first 25.9 Sep last 26.058 Sep. Now (ρ) 26.058"
Mag pri 8.88 Mag sec 9.20 delta mag (ΔM) 0.32 Spectral class F8 (yellow-white)
Pri motion ra -036 Sec motion ra -034
Pri motion dec -035 Sec motion dec -033
Notes
rPM=0.056 (< 0.3, Physical double)
This double is physical.
 
 
21424+0027 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 127004 21 42 27 +00 26 44 STF 2817 AB 2016 39 155 26.1 8.88 9.20 0.32 <===
Show 21 42 27 +00 26 44 AOT 107 AC 2015 8 157 35.7 8.88 14.90 6.02
Show 127004 21 42 27 +00 26 20 AOT 107 BC 2013 4 174 6.4 9.20 14.90 5.70
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Aquarius SAO 127004 Tycho2 0543-01654-1 Gaia DR2 2687236242538088192
 
 
WDS 21424+0027 STF 2817 AB : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
AOT Astronomical Obs. Torino (from additional DD list) ...................
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
21424+0027 STF2817 AB 2004 28 155 25.7 8.88 9.20 F8 D 214226.72+002644.0
21424+0027 STF2817 AB 2013 31 155 25.8 8.88 9.20 F8 214226.72+002644.0
21424+0027 STF2817 AB 2015 34 155 26.1 8.88 9.20 F8 214226.72+002644.0
21424+0027 STF2817 AB 2016 39 155 26.1 8.88 9.20 F8 214226.72+002644.0

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

 
 
WDS 21424+0027 STF 2817 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21424+0027 STF 2817 AB : MEASURES
 
 
No records found.

 
 
WDS 21424+0027 : VIRTUAL EYEPIECE
 
 

21424+0027 STF2817A mag 8.88 Sp F8 21424+0027 AOT 107B sep 26.0 P.A. 155.50 mag 9.2 Sp F8 21424+0027 AOT 107C sep 35.7 P.A. 157.40 mag 14.9 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 21424+0027 : ALADIN DSS IMAGE @ 21h 42m 26.72s +00° 26' 44.0"
 
 
 
 
WDS 21424+0027 STF 2817 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21424+0027 STF2817AB distance=0' 21424+0027 AOT 107BC distance=1' 21426+0027 WAA9001 distance=3' 21423+0021 CHE 312 distance=6' 21428+0028 CHE 313 distance=7' 21417-0024 UC 4532 distance=12' 21424+0037 SMA 152AC distance=12' 21424+0037 BAL1236AB distance=12' 21424+0037 SMA 152BC distance=12' 21427-0039 WAA9002 distance=14' 21426-0013 UC 4535 distance=14' 21417-0036 J 1409 distance=14' 21422+0040 CHE 311 distance=15' 21416+0013 CHE 308 distance=19' 21437+0030 CHE 315 distance=22' 21409-0035 J 1408 distance=23' 21435+0003 CHE 314 distance=29' 21406-0023 CVR 914 distance=29' 21406-0018 AOT 106 distance=30' 21415+0000 CHE 307 distance=30' 21435+0052 WAA9003 distance=31' 21421+0059 CHE 310 distance=33' 21404+0034 SMA 151 distance=33' 21444+0008 CHE 316 distance=35' 21406+0051 SLW1247 distance=37' 21421+0104 CHE 309 distance=39' 21404+0003 AOT 105 distance=40' 21451+0022 SLW1252 distance=40' 21447-0003 CHE 317 distance=42' 21452-0030 TOK 348 distance=42' 21442+0102 LDS6359 distance=45' 21453+0007 CHE 318 distance=48' 21408+0110 SLW1248 distance=50' 21395-0003 BU 1212AB distance=50' 21395-0003 BU 1212AB,C distance=50' 21457+0031 CHE 319 distance=50' 21412+0117 BAL1235 distance=54' 21459+0015 CHE 320 distance=55' 21412+0118 TOB 318 distance=56' 21406+0116 CHE 306 distance=57' 21390-0002 CBL 532 distance=58' 21383-0020 STF2811 distance=63' 21466+0045 CHE 321 distance=66' 21467-0010 BNG 2 distance=66' 21404+0126 BAL1234 distance=68' 21467+0007 CHE 323 distance=68' 21469+0051 STF2825 distance=71' 21376+0035 ARU 4 distance=74' 21376-0023 STF2809AB distance=74' 21376-0023 FYM9001AC distance=74' 21467+0110 CHE 322 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 21424+0027 STF2817 AB 155 26.1
Show 21424+0027 AOT 107 AC 157 35.7
Show 21424+0027 AOT 107 BC 174 6.4 1
Show 21426+0027 WAA9001 27 1.7 3
Show 21423+0021 CHE 312 282 24.0 6
Show 21428+0028 CHE 313 180 7.1 7
Show 21417-0024 UC 4532 160 17.3 12
Show 21424+0037 SMA 152 AC 102 17.4 12
Show 21424+0037 BAL1236 AB 312 15.6 12
Show 21424+0037 SMA 152 BC 112 30.8 12
Show 21427-0039 WAA9002 80 1.2 14
Show 21426-0013 UC 4535 143 19.5 14
Show 21417-0036 J 1409 327 3.8 14
Show 21422+0040 CHE 311 229 22.3 15
Show 21416+0013 CHE 308 186 10.8 19
Show 21437+0030 CHE 315 334 9.6 22
Show 21409-0035 J 1408 356 6.6 23
Show 21435+0003 CHE 314 229 37.8 29
Show 21406-0023 CVR 914 12 29.8 29
Show 21406-0018 AOT 106 83 16.6 30
Show 21415+0000 CHE 307 80 21.7 30
Show 21435+0052 WAA9003 9 0.9 31
Show 21421+0059 CHE 310 30 20.9 33
Show 21404+0034 SMA 151 124 4.5 33
Show 21444+0008 CHE 316 297 38.4 35
Show 21406+0051 SLW1247 225 162.8 37
Show 21421+0104 CHE 309 336 27.3 39
Show 21404+0003 AOT 105 159 18.7 40
Show 21451+0022 SLW1252 143 18.9 40
Show 21447-0003 CHE 317 223 29.2 42
Show 21452-0030 TOK 348 57 146.2 42
Show 21442+0102 LDS6359 144 7.2 45
Show 21453+0007 CHE 318 121 26.3 48
Show 21408+0110 SLW1248 36 18.3 50
Show 21395-0003 BU 1212 AB 156 0.1 50
Show 21395-0003 BU 1212 AB,C 178 36.2 50
Show 21457+0031 CHE 319 101 29.3 50
Show 21412+0117 BAL1235 319 8.9 54
Show 21459+0015 CHE 320 274 13.1 55
Show 21412+0118 TOB 318 104 29.0 56
Show 21406+0116 CHE 306 183 25.0 57
Show 21390-0002 CBL 532 263 80.6 58
Show 21383-0020 STF2811 273 31.1 63
Show 21466+0045 CHE 321 201 21.2 66
Show 21467-0010 BNG 2 251 31.6 66
Show 21404+0126 BAL1234 43 20.1 68
Show 21467+0007 CHE 323 316 28.5 68
Show 21469+0051 STF2825 156 0.4 71
Show 21376+0035 ARU 4 235 0.3 74
Show 21376-0023 STF2809 AB 163 31.1 74
Show 21376-0023 FYM9001 AC 18 37.8 74

 
 
WDS 21424+0027 : COMPONENTS
 
 
  A B
B pa=155.5°
sep=26.04"
 
C pa=157.4°
sep=35.68"
pa=162.5°
sep=9.68"
 
 
21424+0027 A
 
 
Coord arcsec 2000 214226.72+002644.0 Mag 8.88 Spectral class F8 (yellow-white) PmRA -36.00
PmDE -35.0 Tycho2 0543-01654-1
Tycho2
Tycho2 0543-01654-1 Pflag RAmdeg 325.61132638 DEmdeg 0.44555606
PmRA -36.3 PmDE -33.5 E RAmdeg 11 E DEmdeg 12
E pmRA 0.9 E pmDE 1.0 EpRAm 1989.10 EpDEm 1989.23
Num 12 Q RAmdeg 1.4 Q DEmdeg 1.0 Q pmRA 1.6
Q pmDE 1.1 BTmag 9.439 E BTmag 0.023 VTmag 8.876
E VTmag 0.019 Prox 260 TYC T HIP
CCDM RAdeg 325.61140917 DEdeg 0.44563500 EpRA 1990 1.71
EpDE 1990 1.52 E RAdeg 10.7 E DEdeg 12.3 Posflg
Corr -0.2
 
 
21424+0027 B
 
 
Coord arcsec 2000 214227.44+002620.3 Coord calc 214227.44+002620.3 Mag 9.2 Spectral class F8 (yellow-white)
PmRA -34.00 PmDE -33.0 SAO 127004 Tycho2 0543-01595-1
HD 206488 DM BD-00 4251 Calc delta mag 0.32
Tycho2
Tycho2 0543-01595-1 Pflag RAmdeg 325.61437065 DEmdeg 0.43899527
PmRA -35.1 PmDE -33.5 E RAmdeg 15 E DEmdeg 17
E pmRA 1.1 E pmDE 1.0 EpRAm 1988.70 EpDEm 1987.79
Num 9 Q RAmdeg 1.7 Q DEmdeg 1.1 Q pmRA 1.6
Q pmDE 1.1 BTmag 9.940 E BTmag 0.032 VTmag 9.205
E VTmag 0.024 Prox 260 TYC T HIP
CCDM RAdeg 325.61445361 DEdeg 0.43907444 EpRA 1990 1.70
EpDE 1990 1.59 E RAdeg 16.0 E DEdeg 18.0 Posflg
Corr -0.2
SAO
SAO 127004 DelFlag RA1950 PmRA1950 -0.0029
DE1950 PmDE1950 -0.038 Vmag 8.7 SpType F8
Double code Source 31 CatNum 5498 DM BD-00 4251
DMcomp A BDsup HD 206488 M HD 0
GC RA1950rad 5.67182928 DE1950rad 0.00378995 PmRA2000 -0.0027
PmDE2000 -0.043
 
 
21424+0027 C
 
 
Coord arcsec 2000 214227.63+002611.1 Mag 14.9 PmRA 14.00 PmDE 26.0
Calc delta mag 6.02 Calc coord yes