11245+2037 STF 1537 (HD 99121)

 
 
11h 24m 28.94s +20° 37' 16.5" sep 2.0 mag 8.23,9.07 Sp G0 dist. 92.59 pc (302.03 l.y.)
 
 
Coord 2000 11245+2037 Discov num STF1537 Comp Coord arcsec 2000 11 24 28.94 +20 37 16.5
Date first 1830 Date last 2020 Obs 59
Pa first 357 Pa last 359.7 P.A. Now (θ) 359.7°
Sep first 3.6 Sep last 2.04 Sep. Now (ρ) 2.04"
Mag pri 8.23 Mag sec 9.07 delta mag (ΔM) 0.84 Spectral class G0 (yellow)
Pri motion ra -002 Sec motion ra
Pri motion dec +000 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 99121 Constellation Leo SAO 81805 HIP 55677
Tycho2 1439-00627-1 Gaia DR2 3978690341024113536 HD 99121 GC 15662
BD BD+21 2314 Distance 92.59 Distance ly 302.03
 
 
WDS 11245+2037 STF 1537 (HD 99121) : 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
11245+2037 STF1537 2005 49 357 2.2 8.23 9.07 G0 D 112428.94+203716.5
11245+2037 STF1537 2010 52 358 2.3 8.23 9.07 G0 D 112428.94+203716.5
11245+2037 STF1537 2012 53 358 2.2 8.23 9.07 G0 D 112428.94+203716.5
11245+2037 STF1537 2013 52 358 2.3 8.23 9.07 G0 D 112428.94+203716.5
11245+2037 STF1537 2017 55 358 2.3 8.23 9.07 G0 112428.94+203716.5
11245+2037 STF1537 2019 57 358 2.3 8.23 9.07 G0 112428.94+203716.5
11245+2037 STF1537 2020 58 0 2.0 8.23 9.07 G0 112428.94+203716.5

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

 
 
WDS 11245+2037 STF 1537 (HD 99121) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 11245+2037 STF 1537 (HD 99121) : MEASURES
 
 
No records found.

 
 
WDS 11245+2037 (HD 99121) : VIRTUAL EYEPIECE
 
 

11245+2037 STF1537A mag 8.23 Sp G0 11245+2037 STF1537B sep 2.0 P.A. 359.70 mag 9.07 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.

Radius:
Components only
 
 
WDS 11245+2037 (HD 99121) : ALADIN DSS IMAGE @ 11h 24m 28.94s +20° 37' 16.5"
 
 
 
 
WDS 11245+2037 STF 1537 (HD 99121) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


11245+2037  STF1537 distance=0' 11246+2024  CVR 117 distance=14' 11264+2047  LDS4098 distance=29' 11265+2031  TOK 546 distance=29' 11235+2009  SLW 594 distance=32' 11230+2007  BRT2411AB distance=37' 11274+2042  OSO  41 distance=42' 11201+2047  SLW 587 distance=63' 11234+1930  UC 2128 distance=70' 11219+2140  CVR1361 distance=73' 11204+1950  LDS4084AB distance=76' 11204+1950  WNO  37AC distance=76' 11299+2017  CVR 615 distance=80' 11305+2104  SLN  69 distance=90' 11276+2157  AZC  71 distance=91' 11272+1908  KU   38 distance=98' 11218+2208  LDS4088 distance=100' 11212+1859  SLW 590 distance=109' 11300+1917  GWP1593 distance=112' 11282+1859  LDS4104 distance=112' 11210+2218  ITF 182AB distance=113' 11210+2218  ITF 182AC distance=113' 11223+1841  LDS4090 distance=120' 11263+1839  ZUC   9 distance=121' 11321+2143  SLW 613 distance=126' 11323+2144  NSN 616 distance=128' 11205+1841  TDS7797 distance=130' 11279+2243  GRV 836 distance=136' 11225+2250  TDS7831 distance=136' 11151+2120  LDS4077AB distance=138' 11151+2120  WNO  36AC distance=138' 11323+1911  GWP1603 distance=140' 11301+2237  A  2484 distance=144' 11207+2253  STF1531 distance=146' 11141+2031  STT 573AB (Zosma) distance=146' 11141+2031  BU 1282AC (Zosma) distance=146' 11141+2031  DAL  35AD (Zosma) distance=146' 11178+1844  BRT2409 distance=148' 11213+2300  POU3101 distance=150' 11218+1811  STF1534 distance=151' 11137+2008  STF1517AB distance=155' 11137+2008  BU 1431AB,C distance=155' 11314+2241  TDS7906 distance=158' 11335+1903  GWP1607 distance=159' 11271+2313  KPP3239 distance=161' 11349+1921  GRV 837 distance=166' 11336+2225  HJ 2576 distance=168' 11153+1851  GWP1564 distance=168' 11139+2159  CBL  48 distance=169' 11345+1904  GWP1614 distance=170' 11139+2201  BRT2408 distance=171' 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 11245+2037 STF1537 2.0
Show 11246+2024 CVR 117 33 13.0 14
Show 11264+2047 LDS4098 245 18.4 29
Show 11265+2031 TOK 546 70 999.9 29
Show 11235+2009 SLW 594 63 8.1 32
Show 11230+2007 BRT2411 AB 316 3.1 37
Show 11274+2042 OSO 41 127 21.2 42
Show 11201+2047 SLW 587 86 26.4 63
Show 11234+1930 UC 2128 156 10.4 70
Show 11219+2140 CVR1361 14 3.9 73
Show 11204+1950 LDS4084 AB 220 17.1 76
Show 11204+1950 WNO 37 AC 61 23.1 76
Show 11299+2017 CVR 615 42 29.1 80
Show 11305+2104 SLN 69 296 2.8 90
Show 11276+2157 AZC 71 56 12.4 91
Show 11272+1908 KU 38 53 6.2 98
Show 11218+2208 LDS4088 179 40.1 100
Show 11212+1859 SLW 590 303 19.8 109
Show 11300+1917 GWP1593 311 14.6 112
Show 11282+1859 LDS4104 47 53.6 112
Show 11210+2218 ITF 182 AB 64 4.3 113
Show 11210+2218 ITF 182 AC 75 9.6 113
Show 11223+1841 LDS4090 38 10.2 120
Show 11263+1839 ZUC 9 334 1.5 121
Show 11321+2143 SLW 613 150 143.2 126
Show 11323+2144 NSN 616 125 1.7 128
Show 11205+1841 TDS7797 251 6.0 130
Show 11279+2243 GRV 836 326 46.0 136
Show 11225+2250 TDS7831 278 0.4 136
Show 11151+2120 LDS4077 AB 275 11.5 138
Show 11151+2120 WNO 36 AC 58 19.6 138
Show 11323+1911 GWP1603 102 34.7 140
Show 11301+2237 A 2484 160 0.5 144
Show 11207+2253 STF1531 167 23.5 146
Show Zosma 11141+2031 STT 573 AB 341 202.7 146
Show Zosma 11141+2031 BU 1282 AC 31 95.5 146
Show Zosma 11141+2031 DAL 35 AD 38 44.8 146
Show 11178+1844 BRT2409 104 3.8 148
Show 11213+2300 POU3101 103 9.2 150
Show 11218+1811 STF1534 314 5.1 151
Show 11137+2008 STF1517 AB 313 0.7 155
Show 11137+2008 BU 1431 AB,C 97 246.1 155
Show 11314+2241 TDS7906 244 1.9 158
Show 11335+1903 GWP1607 91 109.7 159
Show 11271+2313 KPP3239 211 6.0 161
Show 11349+1921 GRV 837 267 10.8 166
Show 11336+2225 HJ 2576 156 12.1 168
Show 11153+1851 GWP1564 132 12.4 168
Show 11139+2159 CBL 48 190 15.5 169
Show 11345+1904 GWP1614 77 6.4 170
Show 11139+2201 BRT2408 342 4.2 171

 
 
WDS 11245+2037 : COMPONENTS
 
 
  A
B pa=359.7°
sep=2.04"
 
 
11245+2037 A
 
 
Componente originario normalizzato AB Name HD 99121 Coord arcsec 2000 112428.94+203716.5 Mag 8.23
Spectral class G0 (yellow) PmRA -2.00 PmDE 0.0 SAO 81805
HIP 55677 Tycho2 1439-00627-1 HD 99121 GC 15662
BD BD+21 2314
Tycho2
Tycho2 1439-00627-1 Pflag RAmdeg 171.12056654 DEmdeg 20.62126023
PmRA -1.5 PmDE 0.2 E RAmdeg 7 E DEmdeg 7
E pmRA 1.6 E pmDE 1.5 EpRAm 1991.54 EpDEm 1991.38
Num 3 Q RAmdeg 0.7 Q DEmdeg 0.3 Q pmRA 0.7
Q pmDE 0.3 BTmag 8.727 E BTmag 0.018 VTmag 8.231
E VTmag 0.014 Prox 23 TYC T HIP 55677
CCDM A RAdeg 171.12057028 DEdeg 20.62125972 EpRA 1990 1.74
EpDE 1990 1.59 E RAdeg 6.9 E DEdeg 7.4 Posflg D
Corr 0.1
SAO
SAO 81805 DelFlag RA1950 PmRA1950 -0.0005
DE1950 PmDE1950 -0.006 Vmag 8.2 SpType G0
Double code Source 70 CatNum 15662 DM BD+21 2314
DMcomp BDsup HD 99121 M HD 0
GC 15662 RA1950rad 2.97514044 DE1950rad 0.36470151 PmRA2000 -0.0005
PmDE2000 -0.001
Hipparcos
Catalog H HIP 55677 Proxy H RAhms 11 24 28.94
DEdms +20 37 16.5 Vmag 7.78 VarFlag R Vmag H
RAdeg 171.121 DEdeg 20.6213 AstroRef A Plx 11.59
CCDM 11245+2037 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 357 Rho 2.306 HD 99121 BD BD+21 2314
CD CP Dm number +21 2314 VIred -0.21
SpType G0 R SpType Coord arcsec 2000 112428.94+203716.5
Hipparcos 2
HIP 55677 Sn 15 So 3 Nc 2
RArad 2.9866174113 DErad 0.3599088358 Plx 10.8 PmRA -0.09
PmDE 7.04 E RArad 1.11 E DErad 0.94 E Plx 1.13
E pmRA 1.42 E pmDE 1.01 Hpmag 7.8898 E Hpmag 0.0023
SHp 0.019 VA 0 BV 0.485 E BV 0.005
VI 0.56
CCDM
Ccdm 11245+2037 RComp Comp A Note1
Note2 Discov num DRAs -1.02 DDEs 16.9
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.6 Sp G0 PmNote *
PmRA 17 PmDE -4 Dm number +21 2314 Cat1 BD
Name2 +20 1259 Cat2 AGK2/3 HD 99121 M HD
ADS BDS A 8149 M ADS BDS N IDS IDS 11192N2110A
HIC 55677
 
 
11245+2037 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 112428.94+203718.5 Mag 9.07 Calc delta mag 0.84
Calc coord yes
CCDM
Ccdm 11245+2037 RComp Comp B Note1
Note2 Discov num STF1537 DRAs DDEs
R dRAs Year 1831 Theta 356 Rho 2.4
Obs 99 Vmag 9.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 8149 M ADS BDS N IDS IDS 11192N2110B
HIC 55677