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Doubles in session


Current system
21157-0114
STF 2778 AB
HD 202405


Nearby doubles
9' : 21151-0117
LYS 40AB

33' : 21176-0101
LYS 43

49' : 21126-0128
UC 4404

58' : 21123-0142
BAL 263AB

62' : 21116-0118
BAL 621AB

69' : 21112-0100
LDS4867

71' : 21122-0203
A 179

72' : 21203-0130
BU 1304

78' : 21164-0003
LYS 42AB

78' : 21162-0003
LYS 41

79' : 21177-0227
UC 4433

79' : 21182-0224
J 1719

80' : 21209-0136
RST5161

83' : 21155+0008
SLW1233

91' : 21186+0005
SLW1236

92' : 21180+0010
ENG 82AB

92' : 21123-0002
KPP1761

93' : 21112-0218
BAL 262

96' : 21187+0010
KPP1282

105' : 21133-0024
NSN 73

105' : 21188+0019
WSS 4

108' : 21113+0011
GWP3040

110' : 21149-0303
TDT2856

111' : 21155+0037
ITF 234

112' : 21225-0155
BAL 264

113' : 21166-0037
HDS3029



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.

21157-0114 STF 2778 AB (HD 202405)

 
 
21h 15m 39.18s -01° 14' 09.7" P.A. 284.00 sep 18.4 mag 8.71,10.90 Sp F2
 
 
Coord 2000 21157-0114 Discov num STF2778 Comp AB Coord arcsec 2000 21 15 39.18 -01 14 09.7
Date first 1828 Date last 2015 Obs 24
Pa first 267 Pa last 284.4 P.A. Now (θ) 284.4°
Sep first 21.2 Sep last 18.355 Sep. Now (ρ) 18.355"
Mag pri 8.71 Mag sec 10.90 delta mag (ΔM) 2.19 Spectral class F2 (yellow-white)
Pri motion ra -022 Sec motion ra -004
Pri motion dec -048 Sec motion dec -018
Notes
rPM=0.663
Nature of this double is uncertain.
 
 
21157-0114 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 202405 145245 21 15 39 -01 14 10 STF 2778 AB 2015 24 284 18.4 8.71 10.90 2.19 <===
Show 145245 21 15 39 -01 14 10 STF 2778 AC 2015 7 264 69.0 8.71 12.53 3.82
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 202405 Constellation Aquarius SAO 145245 Tycho2 5194-00740-1
Gaia DR2 2688832565918400512 HD 202405 GC 29728
 
 
WDS 21157-0114 STF 2778 AB (HD 202405) : 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
21157-0114 STF2778 AB 1998 18 283 18.6 8.71 10.90 F2 D 211539.18-011409.7
21157-0114 STF2778 AB 2010 20 285 18.3 8.71 10.90 F2 D 211539.18-011409.7
21157-0114 STF2778 AB 2015 22 284 18.4 8.71 10.90 F2 211539.18-011409.7

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

 
 
WDS 21157-0114 STF 2778 AB (HD 202405) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21157-0114 STF 2778 AB (HD 202405) : MEASURES
 
 
No records found.

 
 
WDS 21157-0114 (HD 202405) : VIRTUAL EYEPIECE
 
 

21157-0114 STF2778A mag 8.71 Sp F2 21157-0114 STF2778B sep 18.4 P.A. 284.40 mag 10.9 21157-0114 STF2778C sep 69.0 P.A. 263.70 mag 12.53 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 21157-0114 (HD 202405) : ALADIN DSS IMAGE @ 21h 15m 39.18s -01° 14' 09.7"
 
 
 
 
WDS 21157-0114 STF 2778 AB (HD 202405) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21157-0114 STF2778AB distance=0' 21151-0117 LYS 40AB distance=9' 21151-0117 LYS 40AC distance=9' 21151-0117 LYS 40AD distance=9' 21176-0101 LYS 43 distance=33' 21126-0128 UC 4404 distance=49' 21123-0142 BAL 263AB distance=58' 21123-0142 LYS 37AC distance=58' 21123-0142 FYM 190AD distance=58' 21116-0118 BAL 621AB distance=62' 21116-0118 FYM 189AC distance=62' 21112-0100 LDS4867 distance=69' 21122-0203 A 179 distance=71' 21203-0130 BU 1304 distance=72' 21164-0003 LYS 42AB distance=78' 21164-0003 LYS 42AC distance=78' 21164-0003 LYS 42AD distance=78' 21162-0003 LYS 41 distance=78' 21177-0227 UC 4433 distance=79' 21182-0224 J 1719 distance=79' 21209-0136 RST5161 distance=80' 21155+0008 SLW1233 distance=83' 21186+0005 SLW1236 distance=91' 21180+0010 ENG 82AB distance=92' 21180+0010 TOB 317AD distance=92' 21123-0002 KPP1761 distance=92' 21112-0218 BAL 262 distance=93' 21180+0010 BUP 228BC distance=94' 21180+0010 LYS 44BD distance=94' 21187+0010 KPP1282 distance=96' 21133-0024 NSN 73 distance=105' 21188+0019 WSS 4 distance=105' 21113+0011 GWP3040 distance=108' 21149-0303 TDT2856 distance=110' 21155+0037 ITF 234 distance=111' 21225-0155 BAL 264 distance=112' 21166-0037 HDS3029 distance=113' 21151-0306 OCC9216 distance=113' 21212+0001 BAL 931 distance=113' 21080-0104 J 1402 distance=117' 21198+0026 WAA 50 distance=118' 21098-0232 BAL 261 distance=118' 21161+0045 SLN 40 distance=120' 21103-0016 LDS4866 distance=120' 21119+0032 ITF 212 distance=120' 21147-0050 LYS 39FG distance=124' 21147-0050 A 883AB distance=125' 21147-0050 LYS 39AF distance=125' 21147-0050 LYS 39AH distance=125' 21147-0050 STF2775AB,C distance=125' 21147-0050 STF2775AB,D distance=125' 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 21157-0114 STF2778 AB 284 18.4
Show 21157-0114 STF2778 AC 264 69.0
Show 21151-0117 LYS 40 AB 169 19.6 9
Show 21151-0117 LYS 40 AC 123 8.8 9
Show 21151-0117 LYS 40 AD 219 19.0 9
Show 21176-0101 LYS 43 38 10.3 33
Show 21126-0128 UC 4404 269 32.6 49
Show 21123-0142 BAL 263 AB 358 15.9 58
Show 21123-0142 LYS 37 AC 85 33.1 58
Show 21123-0142 FYM 190 AD 169 16.1 58
Show 21116-0118 BAL 621 AB 136 11.3 62
Show 21116-0118 FYM 189 AC 46 12.4 62
Show 21112-0100 LDS4867 104 28.6 69
Show 21122-0203 A 179 180 0.3 71
Show 21203-0130 BU 1304 55 3.5 72
Show 21164-0003 LYS 42 AB 188 6.2 78
Show 21164-0003 LYS 42 AC 108 55.7 78
Show 21164-0003 LYS 42 AD 170 69.9 78
Show 21162-0003 LYS 41 234 6.4 78
Show 21177-0227 UC 4433 9 16.8 79
Show 21182-0224 J 1719 170 5.8 79
Show 21209-0136 RST5161 234 2.9 80
Show 21155+0008 SLW1233 19 13.5 83
Show 21186+0005 SLW1236 51 176.0 91
Show 21180+0010 ENG 82 AB 41 152.5 92
Show 21180+0010 TOB 317 AD 53 123.3 92
Show 21123-0002 KPP1761 90 13.6 92
Show 21112-0218 BAL 262 279 17.5 93
Show 21180+0010 BUP 228 BC 117 12.2 94
Show 21180+0010 LYS 44 BD 181 41.2 94
Show 21187+0010 KPP1282 16 9.8 96
Show 21133-0024 NSN 73 265 7.9 105
Show 21188+0019 WSS 4 37 2.8 105
Show 21113+0011 GWP3040 290 12.7 108
Show 21149-0303 TDT2856 107 0.5 110
Show 21155+0037 ITF 234 129 2.9 111
Show 21225-0155 BAL 264 98 13.6 112
Show 21166-0037 HDS3029 120 0.6 113
Show 21151-0306 OCC9216 91 0.4 113
Show 21212+0001 BAL 931 234 34.7 113
Show 21080-0104 J 1402 147 3.1 117
Show 21198+0026 WAA 50 99 15.8 118
Show 21098-0232 BAL 261 191 8.8 118
Show 21161+0045 SLN 40 207 2.0 120
Show 21103-0016 LDS4866 245 1.8 120
Show 21119+0032 ITF 212 176 2.6 120
Show 21147-0050 LYS 39 FG 11 20.0 124
Show 21147-0050 A 883 AB 264 0.1 125
Show 21147-0050 LYS 39 AF 297 185.0 125
Show 21147-0050 LYS 39 AH 126 262.6 125
Show 21147-0050 STF2775 AB,C 178 21.3 125

 
 
WDS 21157-0114 : COMPONENTS
 
 
  A B
B pa=284.4°
sep=18.35"
 
C pa=263.7°
sep=68.98"
pa=256.6°
sep=52.22"
 
 
21157-0114 A
 
 
Name HD 202405 Coord arcsec 2000 211539.18-011409.7 Mag 8.71 Spectral class F2 (yellow-white)
PmRA -22.00 PmDE -48.0 SAO 145245 Tycho2 5194-00740-1
HD 202405 GC 29728 DM BD-01 4134
Tycho2
Tycho2 5194-00740-1 Pflag RAmdeg 318.91326203 DEmdeg -1.23604170
PmRA -20.7 PmDE -46.7 E RAmdeg 9 E DEmdeg 10
E pmRA 1.0 E pmDE 1.0 EpRAm 1990.06 EpDEm 1988.95
Num 14 Q RAmdeg 1.0 Q DEmdeg 0.9 Q pmRA 1.0
Q pmDE 0.9 BTmag 9.183 E BTmag 0.021 VTmag 8.714
E VTmag 0.017 Prox 999 TYC T HIP
CCDM RAdeg 318.91330944 DEdeg -1.23593556 EpRA 1990 1.85
EpDE 1990 1.89 E RAdeg 8.9 E DEdeg 10.6 Posflg
Corr -0.1
SAO
SAO 145245 DelFlag RA1950 PmRA1950 -0.0008
DE1950 PmDE1950 -0.054 Vmag 8.5 SpType F2
Double code Source 70 CatNum 29728 DM BD-01 4134
DMcomp BDsup HD 202405 M HD 0
GC 29728 RA1950rad 5.55483635 DE1950rad -0.02520604 PmRA2000 -0.0006
PmDE2000 -0.058
 
 
21157-0114 B
 
 
Coord arcsec 2000 211537.99-011405.1 Mag 10.9 PmRA -4.00 PmDE -18.0
Calc delta mag 2.19 Calc coord yes
 
 
21157-0114 C
 
 
Coord arcsec 2000 211534.61-011417.3 Mag 12.53 PmRA 0.00 PmDE -3.0
Calc delta mag 3.82 Calc coord yes