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Doubles in session


Current system
18378+1127
BLL 33
HD 172100


Nearby doubles
14' : 18369+1129
BPM 792

20' : 18380+1107
BPM 795

22' : 18385+1107
BPM 798

30' : 18368+1151
L 39

33' : 18396+1146
AG 363AB

33' : 18360+1144
STT 357

38' : 18400+1146
TDT 984

39' : 18403+1141
BRT1306

43' : 18350+1127
STF2341

48' : 18346+1134
BPM 790

50' : 18412+1128
BPM 802

54' : 18414+1133
BPM 803

54' : 18344+1116
KRU 7

55' : 18342+1123
HJ 1329

55' : 18390+1035
J 2140

56' : 18413+1146
GRV 236

60' : 18390+1027
J 1266

61' : 18384+1027
BRT1305

63' : 18381+1229
BPM 797

64' : 18395+1225
BPM 800

65' : 18408+1214
HJ 1334

69' : 18424+1113
KU 120

70' : 18367+1019
L 9002

72' : 18411+1035
BPMA 57

72' : 18370+1016
HU 247

73' : 18379+1015
DAM 286



Selections
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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.

18378+1127 BLL 33 (HD 172100)

 
 
18h 37m 49.63s +11° 26' 50.4" P.A. 265.00 sep 131.1 mag 8.52,11.93 Sp K5
 
 
Coord 2000 18378+1127 Discov num BLL  33 Comp Coord arcsec 2000 18 37 49.63 +11 26 50.4
Date first 1876 Date last 2015 Obs 13
Pa first 265 Pa last 264.6 P.A. Now (θ) 264.6°
Sep first 132.5 Sep last 131.087 Sep. Now (ρ) 131.087"
Mag pri 8.52 Mag sec 11.93 delta mag (ΔM) 3.41 Spectral class K5 (yellow-orange)
Pri motion ra -011 Sec motion ra -004
Pri motion dec -003 Sec motion dec +001
Notes
rPM=0.707
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 172100 Constellation Ophiuchus SAO 103927 Tycho2 1032-01274-1
Gaia DR2 4504822632221891328 HD 172100
 
 
WDS 18378+1127 BLL 33 (HD 172100) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Bll1872 orb - Ball, R.S. .
Bll1872 Proc. Royal Irish Acad., June 1872
Bll1884 Ma j Ball, R.S. 1884DunOP...5....1B
Bll1884 Pub. Dunsink Obs. 5, 1, 1884
Bll1913A Ma - Ball, R.S. 1913QB811.B8.......
Bll1913A cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Bll1932A - Ball, R.S. 1932QB821.A43......
Bll1932A cited in ADS (Aitken Double Star Cat.), 1932
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18378+1127 BLL 33 1999 5 265 131.2 8.52 10.50 K5 D 183749.63+112650.4
18378+1127 BLL 33 2001 7 265 131.2 8.52 10.50 K5 D 183749.63+112650.4
18378+1127 BLL 33 2010 8 265 131.4 8.52 11.93 K5 183749.63+112650.4
18378+1127 BLL 33 2015 9 265 131.1 8.52 11.93 K5 183749.63+112650.4

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

 
 
WDS 18378+1127 BLL 33 (HD 172100) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18378+1127 BLL 33 (HD 172100) : MEASURES
 
 
No records found.

 
 
WDS 18378+1127 (HD 172100) : VIRTUAL EYEPIECE
 
 

18378+1127 BLL 33A mag 8.52 Sp K5 18378+1127 BLL 33B sep 128.5 P.A. 264.50 mag 11.93 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 18378+1127 (HD 172100) : ALADIN DSS IMAGE @ 18h 37m 49.63s +11° 26' 50.4"
 
 
 
 
WDS 18378+1127 BLL 33 (HD 172100) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18378+1127 BLL 33 distance=1' 18369+1129 BPM 792 distance=14' 18380+1107 BPM 795 distance=20' 18385+1107 BPM 798 distance=22' 18368+1151 L 39 distance=30' 18396+1146 SLE 229BC distance=32' 18396+1146 AG 363AB distance=33' 18396+1146 SLE 229AD distance=33' 18396+1146 SLE 229AC distance=33' 18360+1144 STT 357 distance=33' 18400+1146 TDT 984 distance=38' 18403+1141 BRT1306 distance=39' 18350+1127 STF2341 distance=43' 18346+1134 BPM 790 distance=48' 18412+1128 BPM 802 distance=50' 18414+1133 BPM 803 distance=54' 18344+1116 KRU 7 distance=54' 18342+1123 HJ 1329 distance=55' 18390+1035 J 2140 distance=55' 18413+1146 GRV 236 distance=56' 18390+1027 J 1266 distance=60' 18384+1027 BRT1305 distance=61' 18381+1229 BPM 797 distance=63' 18395+1225 BPM 800 distance=64' 18408+1214 HJ 1334 distance=65' 18424+1113 KU 120 distance=69' 18367+1019 L 9002 distance=70' 18411+1035 BPMA 57 distance=72' 18370+1016 HU 247 distance=72' 18379+1015 DAM 286 distance=73' 18364+1017 PRZ 14AB distance=73' 18364+1017 PRZ 14AC distance=73' 18388+1014 DAM 287 distance=74' 18329+1111 DAM 639 distance=75' 18427+1152 AG 364AB distance=76' 18427+1152 AG 364AC distance=76' 18427+1152 AG 364BC distance=76' 18328+1147 HU 245 distance=77' 18340+1219 J 1170 distance=78' 18337+1216 ADP 4 distance=78' 18381+1245 BPM 796 distance=79' 18418+1033 BPM 805 distance=80' 18339+1220 J 1197 distance=80' 18365+1009 BRT1304 distance=81' 18417+1029 BPM 804 distance=82' 18328+1054 HEI 561 distance=82' 18433+1100 J 1189 distance=85' 18434+1059 J 1190 distance=86' 18355+1005 J 2137CD distance=89' 18355+1005 BRT1945AB distance=89' 18355+1005 BRT1945AC distance=89' 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 18378+1127 BLL 33 265 131.1 1
Show 18369+1129 BPM 792 358 86.9 14
Show 18380+1107 BPM 795 38 108.9 20
Show 18385+1107 BPM 798 43.0 22
Show 18368+1151 L 39 218 2.2 30
Show 18396+1146 SLE 229 BC 195 22.4 32
Show 18396+1146 AG 363 AB 197 15.6 33
Show 18396+1146 SLE 229 AD 146 59.8 33
Show 18396+1146 SLE 229 AC 196 37.9 33
Show 18360+1144 STT 357 68 0.4 33
Show 18400+1146 TDT 984 137 1.4 38
Show 18403+1141 BRT1306 348 3.6 39
Show 18350+1127 STF2341 265 15.4 43
Show 18346+1134 BPM 790 218 40.1 48
Show 18412+1128 BPM 802 36 61.1 50
Show 18414+1133 BPM 803 341 84.4 54
Show 18344+1116 KRU 7 50 2.7 54
Show 18342+1123 HJ 1329 313 15.8 55
Show 18390+1035 J 2140 184 6.4 55
Show 18413+1146 GRV 236 353 57.4 56
Show 18390+1027 J 1266 29 2.0 60
Show 18384+1027 BRT1305 135 4.9 61
Show 18381+1229 BPM 797 13 97.1 63
Show 18395+1225 BPM 800 50 92.4 64
Show 18408+1214 HJ 1334 91 11.1 65
Show 18424+1113 KU 120 304 61.0 69
Show 18367+1019 L 9002 275 4.9 70
Show 18411+1035 BPMA 57 118 259.3 72
Show 18370+1016 HU 247 359 0.4 72
Show 18379+1015 DAM 286 312 3.4 73
Show 18364+1017 PRZ 14 AB 300 11.0 73
Show 18364+1017 PRZ 14 AC 101 43.9 73
Show 18388+1014 DAM 287 110 2.7 74
Show 18329+1111 DAM 639 256 7.0 75
Show 18427+1152 AG 364 AB 1 29.8 76
Show 18427+1152 AG 364 AC 14 23.6 76
Show 18427+1152 AG 364 BC 144 8.6 76
Show 18328+1147 HU 245 53 2.1 77
Show 18340+1219 J 1170 120 4.5 78
Show 18337+1216 ADP 4 301 3.9 78
Show 18381+1245 BPM 796 221 65.0 79
Show 18418+1033 BPM 805 245 74.5 80
Show 18339+1220 J 1197 180 2.3 80
Show 18365+1009 BRT1304 235 5.5 81
Show 18417+1029 BPM 804 140 40.7 82
Show 18328+1054 HEI 561 190 2.4 82
Show 18433+1100 J 1189 16 7.1 85
Show 18434+1059 J 1190 166 4.0 86
Show 18355+1005 J 2137 CD 156 11.8 89
Show 18355+1005 BRT1945 AB 358 5.8 89
Show 18355+1005 BRT1945 AC 108 8.3 89

 
 
WDS 18378+1127 : COMPONENTS
 
 
  A
B pa=264.5°
sep=128.50"
 
 
18378+1127 A
 
 
Componente originario normalizzato AB Name HD 172100 Coord arcsec 2000 183749.63+112650.4 Mag 8.52
Spectral class K5 (yellow-orange) PmRA -11.00 PmDE -3.0 SAO 103927
Tycho2 1032-01274-1 HD 172100 DM BD+11 3534
Tycho2
Tycho2 1032-01274-1 Pflag RAmdeg 279.45681466 DEmdeg 11.44734834
PmRA -10.6 PmDE -3.3 E RAmdeg 10 E DEmdeg 10
E pmRA 1.2 E pmDE 1.2 EpRAm 1990.86 EpDEm 1990.83
Num 7 Q RAmdeg 0.9 Q DEmdeg 0.4 Q pmRA 0.9
Q pmDE 0.4 BTmag 10.351 E BTmag 0.034 VTmag 8.524
E VTmag 0.014 Prox 999 TYC T HIP
CCDM RAdeg 279.45683917 DEdeg 11.44735583 EpRA 1990 1.74
EpDE 1990 1.81 E RAdeg 9.6 E DEdeg 10.3 Posflg
Corr -0.2
SAO
SAO 103927 DelFlag RA1950 PmRA1950 -0.0015
DE1950 PmDE1950 0.005 Vmag 8.6 SpType K5
Double code Source 29 CatNum 6723 DM BD+11 3534
DMcomp BDsup HD 172100 M HD 0
GC RA1950rad 4.86723031 DE1950rad 0.19902045 PmRA2000 -0.0014
PmDE2000 0.004
CCDM
Ccdm 18378+1127 RComp Comp A Note1
Note2 Discov num DRAs 1.64 DDEs -9.5
R dRAs 65 Year Theta Rho
Obs 2 Vmag 8.9 Sp K5 PmNote *
PmRA -1 PmDE -1 Dm number +11 3534 Cat1 BD
Name2 +11 2093 Cat2 AGK2/3 HD 172100 M HD ?
ADS BDS M ADS BDS N IDS IDS 18327N1122A
HIC
 
 
18378+1127 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 183740.93+112638.1 Mag 11.93 PmRA -4.00
PmDE 1.0 Calc delta mag 3.41 Calc coord yes
CCDM
Ccdm 18378+1127 RComp Comp B Note1
Note2 Discov num BUP DRAs -7.25 DDEs -21.2
R dRAs 65 Year 1876 Theta 265 Rho 132.5
Obs 3 Vmag 10.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 18327N1122B
HIC