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Doubles in session


Current system
11279+4434
STF 1542
HD 99607


Nearby doubles
25' : 11277+4410
A 1848

45' : 11297+4515
LDS4105

46' : 11308+4508
LDS4107

53' : 11286+4526
UC 2147

59' : 11309+4345
YSC 42AB

62' : 11336+4445
LEO 34

80' : 11218+4520
A 1847

87' : 11219+4337
HJ 2568

91' : 11319+4555
COU1750

99' : 11238+4307
LDS4093

102' : 11288+4615
SLW 606

104' : 11277+4618
STF1541

107' : 11206+4324
A 1846

117' : 11387+4450
TDS7974

118' : 11385+4405
ES 1153

120' : 11172+4510
RAO 260

120' : 11387+4507
STF1561AB

120' : 11170+4411
SLW 586

121' : 11358+4308
SKF 832AB

124' : 11299+4232
CVR1368

126' : 11383+4338
TOK 549

128' : 11184+4552
LEP 41

136' : 11334+4637
COU1751

144' : 11406+4524
SKF2632

149' : 11146+4521
CBL 49

150' : 11294+4206
COU1905



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.

11279+4434 STF 1542 (HD 99607)

 
 
11h 27m 56.02s +44° 33' 57.0" P.A. 267.00 sep 3.9 mag 6.93,9.65 Sp F2V dist. 88.89 pc (289.96 l.y.)
 
 
Coord 2000 11279+4434 Discov num STF1542 Comp Coord arcsec 2000 11 27 56.02 +44 33 57.0
Date first 1831 Date last 2022 Obs 26
Pa first 265 Pa last 266.5 P.A. Now (θ) 266.5°
Sep first 2.5 Sep last 3.89 Sep. Now (ρ) 3.89"
Mag pri 6.93 Mag sec 9.65 delta mag (ΔM) 2.72 Spectral class F2V (yellow-white)
Pri motion ra -136 Sec motion ra -138
Pri motion dec -005 Sec motion dec -006
Notes
rPM=0.016 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 99607 Constellation Ursa Major SAO 43750 HIP 55944
Tycho2 3015-00809-1 Gaia DR2 784314496298465024 HD 99607 GC 15726
BD BD+45 1927 Distance 88.89 Distance ly 289.96
 
 
WDS 11279+4434 STF 1542 (HD 99607) : 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
11279+4434 STF1542 2003 21 267 3.4 6.93 9.65 F2V D 112756.02+443357.0
11279+4434 STF1542 2004 22 265 3.6 6.93 9.65 F2V D 112756.02+443357.0
11279+4434 STF1542 2012 23 265 3.5 6.93 9.65 F2V D 112756.02+443357.0
11279+4434 STF1542 2016 25 266 3.5 6.93 9.65 F2V 112756.02+443357.0
11279+4434 STF1542 2022 26 267 3.9 6.93 9.65 F2V 112756.02+443357.0

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

 
 
WDS 11279+4434 STF 1542 (HD 99607) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 11279+4434 STF 1542 (HD 99607) : MEASURES
 
 
No records found.

 
 
WDS 11279+4434 (HD 99607) : VIRTUAL EYEPIECE
 
 

11279+4434 STF1542A mag 6.93 Sp F2V 11279+4434 STF1542B sep 2.8 P.A. 265.10 mag 9.65 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 11279+4434 (HD 99607) : ALADIN DSS IMAGE @ 11h 27m 56.02s +44° 33' 57.0"
 
 
 
 
WDS 11279+4434 STF 1542 (HD 99607) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

11279+4434 STF1542 distance=0' 11277+4410 A 1848 distance=25' 11297+4515 LDS4105 distance=45' 11308+4508 LDS4107 distance=46' 11286+4526 UC 2147 distance=53' 11309+4345 YSC 42AB distance=59' 11309+4345 TOK 547AC distance=59' 11336+4445 LEO 34 distance=62' 11218+4520 A 1847 distance=80' 11219+4337 HJ 2568 distance=87' 11319+4555 COU1750 distance=91' 11238+4307 LDS4093 distance=99' 11288+4615 SLW 606 distance=102' 11277+4618 STF1541 distance=104' 11206+4324 A 1846 distance=107' 11387+4450 TDS7974 distance=117' 11385+4405 ES 1153 distance=118' 11172+4510 RAO 260 distance=120' 11387+4507 STF1561BC distance=120' 11387+4507 STF1561BE distance=120' 11387+4507 STF1561AB distance=120' 11387+4507 STF1561AC distance=120' 11387+4507 STF1561AE distance=120' 11387+4507 STF1561AD distance=120' 11170+4411 SLW 586 distance=120' 11358+4308 SKF 832AB distance=121' 11387+4507 STF1561CD distance=123' 11299+4232 CVR1368 distance=124' 11383+4338 TOK 549 distance=126' 11184+4552 LEP 41 distance=128' 11334+4637 COU1751 distance=136' 11406+4524 SKF2632 distance=144' 11146+4521 CBL 49 distance=149' 11294+4206 COU1905 distance=150' 11157+4551 STTA109 distance=151' 11390+4614 LDS5736 distance=154' 11221+4655 FR 1 distance=154' 11342+4656 LDS4117 distance=156' 11154+4316 LDS6241 distance=156' 11401+4608 LDS4130 distance=159' 11139+4315 KPP 240 distance=171' 11438+4411 ES 123BC distance=172' 11438+4411 ES 123AB distance=172' 11438+4411 ES 123AC distance=172' 11435+4334 COU1423 distance=179' 11444+4518 KPP3245 distance=180' 11158+4227 COU1904 distance=183' 11336+4729 COU1573 distance=185' 11166+4215 HJ 2564 distance=186' 11248+4128 HJ 2570AB distance=187' 11248+4128 HJ 2570AC distance=187' 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 11279+4434 STF1542 267 3.9
Show 11277+4410 A 1848 190 0.6 25
Show 11297+4515 LDS4105 325 127.6 45
Show 11308+4508 LDS4107 193 51.5 46
Show 11286+4526 UC 2147 236 38.0 53
Show 11309+4345 YSC 42 AB 127 0.1 59
Show 11309+4345 TOK 547 AC 319 999.9 59
Show 11336+4445 LEO 34 159 1.7 62
Show 11218+4520 A 1847 330 1.4 80
Show 11219+4337 HJ 2568 247 24.0 87
Show 11319+4555 COU1750 235 2.0 91
Show 11238+4307 LDS4093 343 60.7 99
Show 11288+4615 SLW 606 156 21.7 102
Show 11277+4618 STF1541 27 7.8 104
Show 11206+4324 A 1846 165 1.9 107
Show 11387+4450 TDS7974 40 0.5 117
Show 11385+4405 ES 1153 259 5.8 118
Show 11172+4510 RAO 260 277 0.4 120
Show 11387+4507 STF1561 BC 89 179.6 120
Show 11387+4507 STF1561 BE 347 61.7 120
Show 11387+4507 STF1561 AB 246 8.9 120
Show 11387+4507 STF1561 AC 90 176.8 120
Show 11387+4507 STF1561 AE 338 60.7 120
Show 11387+4507 STF1561 AD 76 718.2 120
Show 11170+4411 SLW 586 251 48.0 120
Show 11358+4308 SKF 832 AB 252 29.5 121
Show 11387+4507 STF1561 CD 72 553.1 123
Show 11299+4232 CVR1368 39 3.9 124
Show 11383+4338 TOK 549 10 528.0 126
Show 11184+4552 LEP 41 143 432.8 128
Show 11334+4637 COU1751 147 0.2 136
Show 11406+4524 SKF2632 275 10.5 144
Show 11146+4521 CBL 49 38 64.2 149
Show 11294+4206 COU1905 188 0.5 150
Show 11157+4551 STTA109 256 83.8 151
Show 11390+4614 LDS5736 248 319.6 154
Show 11221+4655 FR 1 254 0.7 154
Show 11342+4656 LDS4117 55 55.2 156
Show 11154+4316 LDS6241 147 6.8 156
Show 11401+4608 LDS4130 247 156.9 159
Show 11139+4315 KPP 240 304 3.7 171
Show 11438+4411 ES 123 BC 282 42.1 172
Show 11438+4411 ES 123 AB 204 6.8 172
Show 11438+4411 ES 123 AC 273 44.6 172
Show 11435+4334 COU1423 204 1.0 179
Show 11444+4518 KPP3245 125 1.4 180
Show 11158+4227 COU1904 212 0.6 183
Show 11336+4729 COU1573 90 0.6 185
Show 11166+4215 HJ 2564 135 32.0 186
Show 11248+4128 HJ 2570 AB 279 17.5 187
Show 11248+4128 HJ 2570 AC 211 46.1 187

 
 
WDS 11279+4434 : COMPONENTS
 
 
  A
B pa=265.1°
sep=2.78"
 
 
11279+4434 A
 
 
Componente originario normalizzato AB Name HD 99607 Coord arcsec 2000 112756.02+443357.0 Mag 6.93
Spectral class F2V (yellow-white) PmRA -136.00 PmDE -5.0 SAO 43750
HIP 55944 Tycho2 3015-00809-1 HD 99607 GC 15726
BD BD+45 1927
Tycho2
Tycho2 3015-00809-1 Pflag RAmdeg 171.98340617 DEmdeg 44.56583234
PmRA -136.1 PmDE -5.1 E RAmdeg 4 E DEmdeg 4
E pmRA 1.2 E pmDE 1.2 EpRAm 1991.38 EpDEm 1991.45
Num 9 Q RAmdeg 2.2 Q DEmdeg 1.0 Q pmRA 2.2
Q pmDE 1.0 BTmag 7.273 E BTmag 0.015 VTmag 6.929
E VTmag 0.010 Prox 34 TYC T HIP 55944
CCDM A RAdeg 171.98385333 DEdeg 44.56584417 EpRA 1990 1.59
EpDE 1990 1.61 E RAdeg 4.0 E DEdeg 4.2 Posflg
Corr 0.1
SAO
SAO 43750 DelFlag RA1950 PmRA1950 -0.0124
DE1950 PmDE1950 0.006 Vmag 6.9 SpType F0
Double code Source 70 CatNum 15726 DM BD+45 1927
DMcomp BDsup HD 99607 M HD 0
GC 15726 RA1950rad 2.98984623 DE1950rad 0.78263082 PmRA2000 -0.0121
PmDE2000 0.011
Hipparcos
Catalog H HIP 55944 Proxy H RAhms 11 27 56.13
DEdms +44 33 57.0 Vmag 6.84 VarFlag R Vmag H
RAdeg 171.984 DEdeg 44.5658 AstroRef A Plx 13.17
CCDM 11279+4434 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 266 Rho 3.431 HD 99607 BD BD+45 1927
CD CP Dm number +45 1927 VIred 0.33
SpType F0 R SpType Coord arcsec 2000 112756.13+443357.0
Hipparcos 2
HIP 55944 Sn 15 So 3 Nc 2
RArad 3.0016848231 DErad 0.7778207199 Plx 11.25 PmRA -137.63
PmDE -6.43 E RArad 0.38 E DErad 0.37 E Plx 0.52
E pmRA 0.43 E pmDE 0.4 Hpmag 6.9326 E Hpmag 0.0009
SHp 0.008 VA 0 BV 0.387 E BV 0.013
VI 0.45
CCDM
Ccdm 11279+4434 RComp Comp A Note1
Note2 Discov num DRAs 2.02 DDEs -3.7
R dRAs 10 Year Theta Rho
Obs 2 Vmag 6.9 Sp F0 PmNote *
PmRA -135 PmDE -23 Dm number +45 1927 Cat1 BD
Name2 +44 1010 Cat2 AGK2/3 HD 99607 M HD
ADS BDS A 8171 M ADS BDS N IDS IDS 11225N4507A
HIC 55944
 
 
11279+4434 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 112755.76+443356.8 Mag 9.65 PmRA -138.00
PmDE -6.0 Calc delta mag 2.72 Calc coord yes
CCDM
Ccdm 11279+4434 RComp Comp B Note1
Note2 Discov num STF1542 DRAs DDEs
R dRAs Year 1831 Theta 265 Rho 3.0
Obs 12 Vmag 10.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 8171 M ADS BDS N IDS IDS 11225N4507B
HIC 55944