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Current system
12306+0943
STF 1647
HD 108875


Nearby doubles
7' : 12303+0949
CVR1442

42' : 12278+0935
CBL 595

44' : 12281+0920
A 1090

48' : 12286+1021
TDS8401

52' : 12335+1012
HJ 212

59' : 12335+0901
REU 1

61' : 12342+0917
SLW 735

68' : 12262+0923
GWP1809

69' : 12337+1026
BRT3298

73' : 12312+0831
SLW 731

81' : 12264+0851
CVR1432

81' : 12290+0826
WSI 113

82' : 12358+1009
HEI 512

86' : 12362+0925
KPP2598

89' : 12332+0824
CLZ 56

91' : 12348+0838
SKF1851

97' : 12370+0952
SLW 745

99' : 12241+1004
CVR 653

99' : 12286+1117
UC 2345

103' : 12347+0821
SHN 163

109' : 12236+0912
LDS1304

116' : 12302+0748
SHN 159

119' : 12305+1142
BRT1278

119' : 12375+0843
BRT3218AB

121' : 12260+0804
MCT 6

129' : 12360+1124
STF1661



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Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

12306+0943 STF 1647 (HD 108875)

 
 
12h 30m 33.75s +09° 42' 56.4" P.A. 249.00 sep 1.3 mag 8.09,8.37 Sp F2 dist. 92.51 pc (301.77 l.y.)
 
 
Coord 2000 12306+0943 Discov num STF1647 Comp Coord arcsec 2000 12 30 33.75 +09 42 56.4
Date first 1828 Date last 2017 Obs 282
Pa first 201 Pa last 248.7 P.A. Now (θ) 248.7°
Sep first 1.2 Sep last 1.306 Sep. Now (ρ) 1.306"
Mag pri 8.09 Mag sec 8.37 delta mag (ΔM) 0.28 Spectral class F2 (yellow-white)
Pri motion ra +051 Sec motion ra +051
Pri motion dec -058 Sec motion dec -058
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 108875 Constellation Virgo SAO 119436 HIP 61035
Tycho2 0874-00223-1 Gaia DR2 3903746082287027072 HD 108875 GC 17047
ADS 8575 BD BD+10 2432 Distance 92.51 Distance ly 301.77
 
 
ORBITAL ELEMENTS
 
 
Period (P)1010.6613y± 461.8854 Periastron (T)2101.1215y± 37.8188 Semi-major axis (a)1.96209a± 0.84009
Eccentricity (e)0.637± 0.27204 Inclination (i)66.97°± 9.808 Longitude of periastron (ω)259.437°± 21.707
Node (Ω)78.669°± 14.391 Notesn ReferenceIzm2019
Equinox Last observation2015 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 244.4 1.334
2001 244.6 1.331
2002 244.8 1.328
2003 245.1 1.325
2004 245.3 1.322
2005 245.5 1.319
2006 245.8 1.316
2007 246.0 1.313
2008 246.2 1.309
2009 246.5 1.306
2010 246.7 1.302
2011 247.0 1.299
2012 247.2 1.295
2013 247.5 1.291
2014 247.7 1.287
2015 248.0 1.283
2016 248.2 1.279
2017 248.5 1.274
2018 248.7 1.270
2019 249.0 1.265
2020 249.2 1.261
2021 249.5 1.256
2022 249.8 1.251
2023 250.0 1.246
2024 250.3 1.241
2025 250.6 1.236
2026 250.8 1.230
2027 251.1 1.225
2028 251.4 1.219
2029 251.7 1.213
2030 252.0 1.207


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.


 
  


wds12306%2B0943b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 12306+0943 STF 1647 (HD 108875) : NOTES
 
 
discov_num notes refcode
STF1647 Hopmann (1964) orbit rejected from Fourth Orbit Catalog Hop1964b
("period over 4000 years") Wor1983
 
 
REFERENCES
 
 
refcode metd author reference
Hop1964b orb - Hopmann, J. 1964AnWie..26....1H
Hop1964b Ann. Sternw. Wien 26, #1, 1964
Izm2019 orb u Izmailov, I.S. 2019AstL...45...30I
Izm2019 Ast. Lett. 45, 30, 2019
Izm2019 (Orbital elements from weighted solutions used when available (Table 2),
Izm2019 unweighted elements (Table 1) used for remaining 29 systems.)
Wor1983 - Worley, C.E. & Heintz, W.D. 1983PUSNO..24g...1W
Wor1983 Pub. USNO 24, Pt. 7, 1983 (Fourth Orbit Catalog)
 
 
DISCOVERER
 
 
idgroup discov author
1 STF Struve, F.G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12306+0943 STF1647 2007 278 246 1.3 8.09 8.37 F2 NOD 123033.75+094256.4
12306+0943 STF1647 2008 281 247 1.2 8.09 8.37 F2 NOD 123033.75+094256.4
12306+0943 STF1647 2010 282 248 1.3 8.09 8.37 F2 NOD 123033.75+094256.4
12306+0943 STF1647 2012 274 248 1.3 8.09 8.37 F2 NOD 123033.75+094256.4
12306+0943 STF1647 2014 275 248 1.3 8.09 8.37 F2 NOD 123033.75+094256.4
12306+0943 STF1647 2015 276 248 1.2 8.09 8.37 F2 NO 123033.75+094256.4
12306+0943 STF1647 2017 278 249 1.3 8.09 8.37 F2 NO 123033.75+094256.4

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

 
 
WDS 12306+0943 STF 1647 (HD 108875) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 12306+0943 STF 1647 (HD 108875) : MEASURES
 
 
No records found.

 
 
WDS 12306+0943 (HD 108875) : VIRTUAL EYEPIECE
 
 

12306+0943 STF1647A mag 8.09 Sp F2 12306+0943 STF1647B sep 1.3 P.A. 248.40 mag 8.37 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 12306+0943 (HD 108875) : ALADIN DSS IMAGE @ 12h 30m 33.75s +09° 42' 56.4"
 
 
 
 
WDS 12306+0943 STF 1647 (HD 108875) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

12306+0943 STF1647 distance=0' 12303+0949 CVR1442 distance=7' 12278+0935 CBL 595 distance=42' 12281+0920 A 1090 distance=44' 12286+1021 TDS8401 distance=48' 12335+1012 HJ 212 distance=52' 12335+0901 REU 1 distance=59' 12342+0917 SLW 735 distance=61' 12262+0923 GWP1809 distance=68' 12337+1026 BRT3298 distance=69' 12312+0831 SLW 731 distance=73' 12264+0851 CVR1432 distance=81' 12290+0826 WSI 113 distance=81' 12358+1009 HEI 512 distance=82' 12362+0925 KPP2598 distance=86' 12332+0824 CLZ 56 distance=89' 12348+0838 SKF1851 distance=91' 12370+0952 SLW 745 distance=97' 12241+1004 CVR 653 distance=99' 12286+1117 UC 2345 distance=99' 12347+0821 SHN 163 distance=103' 12236+0912 LDS1304 distance=109' 12302+0748 SHN 159 distance=116' 12305+1142 BRT1278 distance=119' 12375+0843 FYM 622BC distance=119' 12375+0843 BRT3218AB distance=119' 12260+0804 MCT 6 distance=121' 12360+1124 STF1661 distance=129' 12299+1157 SKF1348 distance=135' 12276+0736 GWP1812 distance=135' 12364+1131 LDS1327 distance=138' 12332+1200 LDS1318 distance=143' 12317+1208 SHY 607AB distance=146' 12274+0723 STF1644 distance=148' 12324+1211 LDS 937 distance=150' 12357+0731 GWP1833 distance=153' 12351+0727 STF1658AB distance=153' 12351+0727 STF1658AC distance=153' 12336+0717 TOK 149 distance=153' 12345+1206 BPM 593 distance=154' 12277+1213 TDS 663BC distance=156' 12273+0714 FOX 175 distance=157' 12277+1213 GWP1813AB distance=157' 12405+1044 CVR1460 distance=159' 12394+1118 CVR 661 distance=161' 12409+0850 STF1668AB distance=163' 12409+0850 STF1668AC distance=163' 12284+1223 LDS1311 distance=164' 12200+1032 HJ 847 distance=164' 12310+1228 SHN 161 distance=166' 12205+1058 BRT1277 distance=166' 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 12306+0943 STF1647 249 1.3
Show 12303+0949 CVR1442 355 4.1 7
Show 12278+0935 CBL 595 303 11.0 42
Show 12281+0920 A 1090 92 1.9 44
Show 12286+1021 TDS8401 105 0.7 48
Show 12335+1012 HJ 212 264 21.7 52
Show 12335+0901 REU 1 290 0.4 59
Show 12342+0917 SLW 735 342 113.2 61
Show 12262+0923 GWP1809 260 48.6 68
Show 12337+1026 BRT3298 189 9.6 69
Show 12312+0831 SLW 731 272 49.2 73
Show 12264+0851 CVR1432 140 3.5 81
Show 12290+0826 WSI 113 16 0.2 81
Show 12358+1009 HEI 512 161 0.3 82
Show 12362+0925 KPP2598 43 23.6 86
Show 12332+0824 CLZ 56 147 110.9 89
Show 12348+0838 SKF1851 32 2.1 91
Show 12370+0952 SLW 745 274 38.9 97
Show 12241+1004 CVR 653 124 13.7 99
Show 12286+1117 UC 2345 22.0 99
Show 12347+0821 SHN 163 -1 0.5 103
Show 12236+0912 LDS1304 32 11.7 109
Show 12302+0748 SHN 159 -1 0.7 116
Show 12305+1142 BRT1278 26 2.8 119
Show 12375+0843 FYM 622 BC 6 5.4 119
Show 12375+0843 BRT3218 AB 357 7.7 119
Show 12260+0804 MCT 6 109 2.0 121
Show 12360+1124 STF1661 253 2.3 129
Show 12299+1157 SKF1348 320 30.1 135
Show 12276+0736 GWP1812 166 14.9 135
Show 12364+1131 LDS1327 35 8.6 138
Show 12332+1200 LDS1318 163 7.9 143
Show 12317+1208 SHY 607 AB 46 999.9 146
Show 12274+0723 STF1644 239 19.0 148
Show 12324+1211 LDS 937 122 42.3 150
Show 12357+0731 GWP1833 283 23.0 153
Show 12351+0727 STF1658 AB 20 2.8 153
Show 12351+0727 STF1658 AC 266 129.1 153
Show 12336+0717 TOK 149 223 17.1 153
Show 12345+1206 BPM 593 132 118.3 154
Show 12277+1213 TDS 663 BC 285 3.4 156
Show 12273+0714 FOX 175 320 62.7 157
Show 12277+1213 GWP1813 AB 243 225.0 157
Show 12405+1044 CVR1460 309 4.5 159
Show 12394+1118 CVR 661 139 18.7 161
Show 12409+0850 STF1668 AB 187 1.1 163
Show 12409+0850 STF1668 AC 98 14.8 163
Show 12284+1223 LDS1311 25 15.9 164
Show 12200+1032 HJ 847 82 26.1 164
Show 12310+1228 SHN 161 -1 0.3 166
Show 12205+1058 BRT1277 325 3.2 166

 
 
WDS 12306+0943 : COMPONENTS
 
 
  A
B pa=248.4°
sep=1.29"
 
 
12306+0943 A
 
 
Componente originario normalizzato AB Name HD 108875 Coord arcsec 2000 123033.75+094256.4 Mag 8.09
Spectral class F2 (yellow-white) PmRA 51.00 PmDE -58.0 SAO 119436
HIP 61035 Tycho2 0874-00223-1 HD 108875 GC 17047
BD BD+10 2432
Tycho2
Tycho2 0874-00223-1 Pflag P RAmdeg 187.64062991 DEmdeg 9.71567571
PmRA 50.7 PmDE -57.5 E RAmdeg 5 E DEmdeg 7
E pmRA 1.7 E pmDE 1.7 EpRAm 1991.64 EpDEm 1991.16
Num 6 Q RAmdeg 0.4 Q DEmdeg 1.1 Q pmRA 0.4
Q pmDE 1.1 BTmag 8.624 E BTmag 0.017 VTmag 8.094
E VTmag 0.013 Prox 14 TYC T HIP 61035
CCDM A RAdeg 187.64064528 DEdeg 9.71587722 EpRA 1990 1.76
EpDE 1990 1.42 E RAdeg 5.4 E DEdeg 7.1 Posflg D
Corr 0.0
SAO
SAO 119436 DelFlag RA1950 PmRA1950 0.0035
DE1950 PmDE1950 -0.057 Vmag 7.9 SpType F2
Double code Source 70 CatNum 17047 DM BD+10 2432
DMcomp BDsup HD 108875 M HD 0
GC 17047 RA1950rad 3.26385929 DE1950rad 0.17440388 PmRA2000 0.0036
PmDE2000 -0.053
Hipparcos
Catalog H HIP 61035 Proxy H RAhms 12 30 33.75
DEdms +09 42 57.2 Vmag 7.46 VarFlag R Vmag G
RAdeg 187.641 DEdeg 9.71588 AstroRef A Plx 11.85
CCDM 12306+0943 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 243 Rho 1.358 HD 108875 BD BD+10 2432
CD CP Dm number +10 2432 VIred 0.55
SpType F2 R SpType Coord arcsec 2000 123033.75+094257.2
Hipparcos 2
HIP 61035 Sn 15 So 3 Nc 2
RArad 3.274946937 DErad 0.1695741281 Plx 10.81 PmRA 51.76
PmDE -58.01 E RArad 0.8 E DErad 0.58 E Plx 0.9
E pmRA 0.94 E pmDE 0.6 Hpmag 7.5581 E Hpmag 0.0011
SHp 0.012 VA 0 BV 0.481 E BV 0.016
VI 0.55
CCDM
Ccdm 12306+0943 RComp Comp A Note1
Note2 Discov num DRAs -2.23 DDEs -3.6
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.5 Sp F2 PmNote *
PmRA 58 PmDE -57 Dm number +10 2432 Cat1 BD
Name2 +09 1519 Cat2 AGK2/3 HD 108875 M HD
ADS BDS A 8575 M ADS BDS N IDS IDS 12255N1016A
HIC 61035
 
 
12306+0943 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 123033.67+094255.9 Mag 8.37 PmRA 51.00
PmDE -58.0 HIP 61035 Tycho2 0874-00223-2 Calc delta mag 0.28
Calc coord yes
Tycho2
Tycho2 0874-00223-2 Pflag P RAmdeg 187.64062991 DEmdeg 9.71567571
PmRA 50.7 PmDE -57.5 E RAmdeg 5 E DEmdeg 7
E pmRA 1.7 E pmDE 1.7 EpRAm 1991.64 EpDEm 1991.16
Num 6 Q RAmdeg 0.4 Q DEmdeg 1.1 Q pmRA 0.4
Q pmDE 1.1 BTmag 8.899 E BTmag 0.017 VTmag 8.373
E VTmag 0.013 Prox 14 TYC HIP 61035
CCDM B RAdeg 187.64030139 DEdeg 9.71571083 EpRA 1990 1.76
EpDE 1990 1.42 E RAdeg 6.0 E DEdeg 8.1 Posflg D
Corr 0.0
Hipparcos
Catalog H HIP 61035 Proxy H RAhms 12 30 33.75
DEdms +09 42 57.2 Vmag 7.46 VarFlag R Vmag G
RAdeg 187.641 DEdeg 9.71588 AstroRef A Plx 11.85
CCDM 12306+0943 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 243 Rho 1.358 HD 108875 BD BD+10 2432
CD CP Dm number +10 2432 VIred 0.55
SpType F2 R SpType Coord arcsec 2000 123033.75+094257.2
Hipparcos 2
HIP 61035 Sn 15 So 3 Nc 2
RArad 3.274946937 DErad 0.1695741281 Plx 10.81 PmRA 51.76
PmDE -58.01 E RArad 0.8 E DErad 0.58 E Plx 0.9
E pmRA 0.94 E pmDE 0.6 Hpmag 7.5581 E Hpmag 0.0011
SHp 0.012 VA 0 BV 0.481 E BV 0.016
VI 0.55
CCDM
Ccdm 12306+0943 RComp Comp B Note1 *
Note2 Discov num STF1647 DRAs DDEs
R dRAs Year 1959 Theta 237 Rho 1.3
Obs 99 Vmag 8.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 8575 M ADS BDS N IDS IDS 12255N1016B
HIC 61035