18091+3101 BLL 31 AB (T Her)

 
 
18h 09m 06.21s +31° 01' 16.1" P.A. 320.00 sep 64.5 mag 10.04,11.08 Sp M4e dist. 925.93 pc (3020.38 l.y.)
 
 
Coord 2000 18091+3101 Discov num BLL  31 Comp AB Coord arcsec 2000 18 09 06.21 +31 01 16.1
Date first 1877 Date last 2015 Obs 19
Pa first 321 Pa last 320.3 P.A. Now (θ) 320.3°
Sep first 66.9 Sep last 64.532 Sep. Now (ρ) 64.532"
Mag pri 10.04 Mag sec 11.08 delta mag (ΔM) 1.04 Spectral class M4e (red)
Pri motion ra -005 Sec motion ra +014
Pri motion dec +009 Sec motion dec -009
Notes N (See Notes)
rPM=1.573
This double is not physical.
 
 
18091+3101 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show T Her 66680 18 09 06 +31 01 16 BLL 31 AB 2015 19 320 64.5 10.04 11.08 1.04 <===
Show 18 09 03 +31 02 06 BKO 51 BC 2015 8 207 19.0 11.08 13.20 2.12
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name T Her Constellation Hercules SAO 66680 HIP 88923
Tycho2 2622-01634-1 Gaia DR2 4591149275824008960 HD 166382 GC 24757
DM BD+31 3185 BD BD+30 3137 Distance 925.93 Distance ly 3020.38
 
 
WDS 18091+3101 BLL 31 AB (T Her) : NOTES
 
 
discov_num notes refcode
BLL 31 A is the Mira-type system T Her. B is BD+31@3185.
 
 
REFERENCES
 
 
refcode metd author reference
Bko2002 C - Ladanyi, T. & Berko, E. ...................
Bko2002 Webb Soc., Double Star Circ. 10, 2002
Bko2003 C u Ladanyi, T., Berko, E. & Vaskuti, G ...................
Bko2003 Webb Soc., Double Star Circ. 11, 2003
Bko2004 C u Berko, E., Ladanyi, T. & Vaskuti, G ...................
Bko2004 Webb Soc., Double Star Circ. 12, 2004
Bko2005 C u Berko, E., Ladanyi, T. & Vaskuti, G ...................
Bko2005 Webb Soc., Double Star Circ. 13, 2005
Bko2008 C u Berko, E. & Vaskuti, G. ...................
Bko2008 Webb Soc., Double Star Circ. 16, 2008
Bko2008b C u Berko, E. 2008JDSO....4..144B
Bko2008b JDSO 4, 144, 2008
Bko2009 C u Berko, E. 2009JDSO....5...49B
Bko2009 JDSO 5, 49, 2009
Bko2009b C u Berko, E. 2009JDSO....5..168B
Bko2009b JDSO 5, 168, 2009
Bko2009c C u Berko, E. ...................
Bko2009c Webb Soc., Double Star Circ. 17, 2009
Bko2009d C u Berko, E. 2009JDSO....5..189B
Bko2009d JDSO 5, 189, 2009
Bko2010a C u Berko, E. 2010JDSO....6...21B
Bko2010a JDSO 6, 21, 2010
Bko2010b C u Berko, E. ...................
Bko2010b Webb Soc., Double Star Circ. 18, 2010
Bko2011a C u Berko, E. 2011JDSO....7....2B
Bko2011a JDSO 7, 2, 2011
Bko2011b C u Berko, E. ...................
Bko2011b Webb Soc., Double Star Circ. 19, 29, 2011 (BKO 898 - BKO 980)
Bko2011c C u Berko, E. ...................
Bko2011c Webb Soc., Double Star Circ. 19, 42, 2011 (BKO 981 - BKO1042)
Bko2012 C u Berko, E. ...................
Bko2012 Webb Soc., Double Star Circ. 20, 2012
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
18091+3101 BLL 31 AB 2002 12 321 65.0 10.04 11.08 M4e N 180906.21+310116.1
18091+3101 BLL 31 AB 2015 15 320 64.5 10.04 11.08 M4e N 180906.21+310116.1

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WDS 18091+3101 BLL 31 AB (T Her) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18091+3101 BLL 31 AB (T Her) : MEASURES
 
 
No records found.

 
 
WDS 18091+3101 (T Her) : VIRTUAL EYEPIECE
 
 

18091+3101 BLL  31A mag 10.04 Sp M4e 18091+3101 BKO  51B sep 65.0 P.A. 320.30 mag 11.08 18091+3101 BKO  51C sep 59.0 P.A. 304.10 mag 13.2 virtual eyepiece
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Radius:
Components only
 
 
WDS 18091+3101 (T Her) : ALADIN DSS IMAGE @ 18h 09m 06.21s +31° 01' 16.1"
 
 
 
 
WDS 18091+3101 BLL 31 AB (T Her) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


18091+3101  BLL  31AB distance=1' 18091+3101  BKO  51BC distance=2' 18095+3113  TDS 908 distance=13' 18079+3042  SLE 138 distance=25' 18092+3129  COU 812 distance=28' 18110+3124  ES  345 distance=34' 18070+3034  SCA 170Aa,Ab distance=39' 18070+3034  AC   15AB distance=39' 18070+3034  AC   15AC distance=39' 18070+3034  AC   15AD distance=39' 18070+3034  AC   15AE distance=39' 18070+3034  AC   15AF distance=39' 18070+3034  AC   15AG distance=39' 18061+3110  SLE 134 distance=39' 18123+3106  SLE 141 distance=42' 18094+3144  A   237DE distance=42' 18094+3144  A   237AB distance=44' 18094+3144  A   237AC distance=44' 18094+3144  A   237AD distance=44' 18094+3144  DAM 807AF distance=44' 18054+3054  SLE 130 distance=49' 18095+3151  KPP 951 distance=51' 18101+3150  BRT 259 distance=51' 18126+3135  STF2295 distance=56' 18054+3029  SLE 131AB distance=56' 18054+3029  SLE 131AC distance=56' 18054+3029  SLE 131BC distance=57' 18094+2957  MET  83AB distance=65' 18094+2957  MET  83AC distance=65' 18094+2957  MET  83AD distance=65' 18094+2957  MET  83AE distance=65' 18094+2957  GAT  25AF distance=65' 18060+3002  TDT 679 distance=72' 18049+3015  TDT 667 distance=72' 18041+3025  KPP4077 distance=75' 18039+3023  WIS 322 distance=78' 18083+2941  YSC  65Aa,Ac distance=81' 18083+2941  LAF  60Aa,Ab distance=81' 18083+2941  LAF  60AB distance=81' 18083+2941  LAF  60AC distance=81' 18083+2941  LAF  60AD distance=81' 18083+2941  LAF  60AE distance=81' 18099+2941  HJ 1315 distance=81' 18028+3115  TDT 651 distance=82' 18104+3221  HO   81 distance=82' 18071+3223  HJ 1314 distance=86' 18041+3159  KPP 641 distance=86' 18039+3200  COU1004 distance=90' 18118+3224  LDS4778 distance=91' 18111+3241  TOK 615BC distance=92' 18069+2933  SLE 135 distance=93' grafico limitrofi
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Show name coord_2000 discov# comp pa sep dist(')
Show 18091+3101 BLL 31 AB 320 64.5 1
Show 18091+3101 BKO 51 BC 207 19.0 2
Show 18095+3113 TDS 908 236 0.8 13
Show 18079+3042 SLE 138 329 10.1 25
Show 18092+3129 COU 812 265 0.7 28
Show 18110+3124 ES 345 15 2.7 34
Show 18070+3034 SCA 170 Aa,Ab 230 0.2 39
Show 18070+3034 AC 15 AB 331 1.4 39
Show 18070+3034 AC 15 AC 60 97.0 39
Show 18070+3034 AC 15 AD 103 140.1 39
Show 18070+3034 AC 15 AE 78 169.9 39
Show 18070+3034 AC 15 AF 165 162.4 39
Show 18070+3034 AC 15 AG 175.9 39
Show 18061+3110 SLE 134 292 7.2 39
Show 18123+3106 SLE 141 16 6.1 42
Show 18094+3144 A 237 DE 308 8.2 42
Show 18094+3144 A 237 AB 103 2.2 44
Show 18094+3144 A 237 AC 358 28.7 44
Show 18094+3144 A 237 AD 221 101.8 44
Show 18094+3144 DAM 807 AF 63 10.6 44
Show 18054+3054 SLE 130 103 6.7 49
Show 18095+3151 KPP 951 259 7.8 51
Show 18101+3150 BRT 259 278 4.0 51
Show 18126+3135 STF2295 173 8.3 56
Show 18054+3029 SLE 131 AB 203 52.4 56
Show 18054+3029 SLE 131 AC 206 67.2 56
Show 18054+3029 SLE 131 BC 217 15.0 57
Show 18094+2957 MET 83 AB 274 2.7 65
Show 18094+2957 MET 83 AC 239 3.3 65
Show 18094+2957 MET 83 AD 183 9.5 65
Show 18094+2957 MET 83 AE 281 10.4 65
Show 18094+2957 GAT 25 AF 301 29.2 65
Show 18060+3002 TDT 679 347 0.7 72
Show 18049+3015 TDT 667 146 1.5 72
Show 18041+3025 KPP4077 249 16.8 75
Show 18039+3023 WIS 322 284 999.9 78
Show 18083+2941 YSC 65 Aa,Ac 246 0.1 81
Show 18083+2941 LAF 60 Aa,Ab 251 0.1 81
Show 18083+2941 LAF 60 AB 53 10.4 81
Show 18083+2941 LAF 60 AC 196 11.2 81
Show 18083+2941 LAF 60 AD 168 13.4 81
Show 18083+2941 LAF 60 AE 262 16.3 81
Show 18099+2941 HJ 1315 129 9.0 81
Show 18028+3115 TDT 651 228 0.6 82
Show 18104+3221 HO 81 215 3.3 82
Show 18071+3223 HJ 1314 152 17.6 86
Show 18041+3159 KPP 641 117 5.8 86
Show 18039+3200 COU1004 109 1.3 90
Show 18118+3224 LDS4778 63 48.6 91
Show 18111+3241 TOK 615 BC 57 49.2 92
Show 18069+2933 SLE 135 126 9.7 93

 
 
WDS 18091+3101 : COMPONENTS
 
 
  A B
B pa=320.3°
sep=64.99"
 
C pa=304.1°
sep=58.98"
pa=203.4°
sep=18.49"
 
 
18091+3101 A
 
 
Var name T Her Coord arcsec 2000 180906.21+310116.1 Mag 10.04 Spectral class M4e (red)
PmRA -5.00 PmDE 9.0 SAO 66680 HIP 88923
Tycho2 2622-01634-1 HD 166382 GC 24757 BD BD+30 3137
Tycho2
Tycho2 2622-01634-1 Pflag RAmdeg 272.27587691 DEmdeg 31.02116428
PmRA -4.1 PmDE 7.1 E RAmdeg 19 E DEmdeg 18
E pmRA 1.4 E pmDE 1.3 EpRAm 1988.31 EpDEm 1988.83
Num 10 Q RAmdeg 1.4 Q DEmdeg 1.2 Q pmRA 1.4
Q pmDE 1.2 BTmag 10.990 E BTmag 0.045 VTmag 10.042
E VTmag 0.030 Prox 651 TYC T HIP 88923
CCDM RAdeg 272.27589167 DEdeg 31.02114583 EpRA 1990 1.42
EpDE 1990 1.60 E RAdeg 20.8 E DEdeg 19.2 Posflg
Corr -0.1
SAO
SAO 66680 DelFlag RA1950 PmRA1950 0.0009
DE1950 PmDE1950 0.006 Vmag 6.9 SpType M3e
Double code Source 70 CatNum 24757 DM BD+30 3137
DMcomp BDsup HD 166382 M HD 0
GC 24757 RA1950rad 4.74385106 DE1950rad 0.54124631 PmRA2000 0.0011
PmDE2000 0.006
Hipparcos
Catalog H HIP 88923 Proxy RAhms 18 09 06.21
DEdms +31 01 16.1 Vmag 9.65 VarFlag 3 R Vmag H
RAdeg 272.276 DEdeg 31.0212 AstroRef Plx -0.33
CCDM 18091+3102 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual S M HIP
Theta Rho HD 166382 BD BD+30 3137
CD CP Dm number +30 3137 VIred 3.34
SpType M2.5e-M8e R SpType Coord arcsec 2000 180906.21+310116.1
Hipparcos 2
HIP 88923 Sn 5 So 0 Nc 1
RArad 4.75211065 DErad 0.5414212225 Plx 1.08 PmRA -2.44
PmDE 6.59 E RArad 0.53 E DErad 0.76 E Plx 0.9
E pmRA 0.65 E pmDE 0.86 Hpmag 9.4433 E Hpmag 0.1753
SHp 1.483 VA 1 BV 1.118 E BV 0.037
VI 3.34
 
 
18091+3101 B
 
 
Coord arcsec 2000 180902.98+310206.1 Coord calc 180902.98+310206.1 Mag 11.08 PmRA 14.00
PmDE -9.0 Tycho2 2622-01164-1 DM BD+31 3185 Calc delta mag 1.04
Tycho2
Tycho2 2622-01164-1 Pflag RAmdeg 272.26244559 DEmdeg 31.03503268
PmRA 14.4 PmDE -10.4 E RAmdeg 29 E DEmdeg 29
E pmRA 1.6 E pmDE 1.6 EpRAm 1983.45 EpDEm 1983.27
Num 9 Q RAmdeg 1.2 Q DEmdeg 2.1 Q pmRA 1.2
Q pmDE 2.1 BTmag 11.885 E BTmag 0.088 VTmag 11.077
E VTmag 0.073 Prox 651 TYC T HIP
CCDM RAdeg 272.26238722 DEdeg 31.03503694 EpRA 1990 1.39
EpDE 1990 1.60 E RAdeg 51.3 E DEdeg 46.1 Posflg
Corr -0.2
 
 
18091+3101 C
 
 
Coord arcsec 2000 180902.41+310149.1 Mag 13.2 PmRA 0.00 PmDE 11.0
Calc delta mag 3.16 Calc coord yes