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Current system
23078+1240
BU 1025 AB
HD 218430


Nearby doubles
11' : 23078+1229
GRV 637

15' : 23069+1246
BRT1364

21' : 23064+1235
GIC 188AB

42' : 23052+1226
GWP3230

46' : 23100+1208
KPP2346

50' : 23049+1216
DBR 324

51' : 23060+1323
BPM2475

52' : 23067+1152
GWP3234

58' : 23098+1150
GWP3245

62' : 23103+1152
CVR 976

70' : 23125+1233
LAS 1AB

74' : 23094+1350
BPM2477

76' : 23129+1233
HJ 3176

77' : 23113+1144
ROE 133

80' : 23117+1338
HEI 413

81' : 23023+1251
NSN 10

98' : 23033+1129
ROE 132AB

101' : 23015+1202
BPM2473

104' : 23088+1058
A 1238AB

108' : 23010+1202
A 1237

110' : 23007+1206
BRT1362

110' : 23100+1426
STF2986

111' : 23053+1056
GRV 633

117' : 22599+1251
GWP3219

119' : 23043+1054
SKF 246

120' : 23056+1435
AG 425



Selections
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Binary Systems
Triple Systems
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Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

23078+1240 BU 1025 AB (HD 218430)

 
 
23h 07m 48.16s +12° 40' 23.5" P.A. 329.00 sep 0.8 mag 7.77,9.75 Sp A9III dist. 133.87 pc (436.68 l.y.)
 
 
Coord 2000 23078+1240 Discov num BU 1025 Comp AB Coord arcsec 2000 23 07 48.16 +12 40 23.5
Date first 1891 Date last 2016 Obs 38
Pa first 269 Pa last 329 P.A. Now (θ) 329°
Sep first 0.8 Sep last 0.762 Sep. Now (ρ) 0.762"
Mag pri 7.77 Mag sec 9.75 delta mag (ΔM) 1.98 Spectral class A9III (white)
Pri motion ra -017 Sec motion ra -017
Pri motion dec -014 Sec motion dec -014
Notes O (Orbital solution)
This double is physical.
 
 
23078+1240 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 218430 108415 23 07 48 +12 40 24 BU 1025 AB 2016 38 329 0.8 7.77 9.75 1.98 Y <===
Show 108415 23 07 48 +12 40 24 BU 1025 AC 2014 16 84 21.7 7.77 11.70 3.93
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 218430 Constellation Pegasus SAO 108415 HIP 114215
Tycho2 1166-01376-1 Gaia DR2 2811891384767367296 HD 218430 ADS 16524
BD BD+11 4940 Distance 133.87 Distance ly 436.68
 
 
ORBITAL ELEMENTS
 
 
Period (P)1167.0044y± 591.757 Periastron (T)1845.3886y± 192.2763 Semi-major axis (a)2.57536a± 1.58238
Eccentricity (e)0.84308± 0.14692 Inclination (i)74.009°± 11.475 Longitude of periastron (ω)115.409°± 41.722
Node (Ω)66.824°± 66.495 Notes ReferenceIzm2019
Equinox Last observation2008 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 322.1 0.794
2001 322.5 0.795
2002 323.0 0.797
2003 323.5 0.798
2004 324.0 0.800
2005 324.4 0.801
2006 324.9 0.803
2007 325.4 0.805
2008 325.9 0.806
2009 326.3 0.808
2010 326.8 0.810
2011 327.2 0.812
2012 327.7 0.814
2013 328.2 0.815
2014 328.6 0.817
2015 329.1 0.819
2016 329.5 0.821
2017 330.0 0.823
2018 330.4 0.825
2019 330.9 0.828
2020 331.3 0.830
2021 331.7 0.832
2022 332.2 0.834
2023 332.6 0.836
2024 333.0 0.839
2025 333.5 0.841
2026 333.9 0.843
2027 334.3 0.846
2028 334.7 0.848
2029 335.2 0.850
2030 335.6 0.853


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


 
  


wds23078%2B1240a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 23078+1240 BU 1025 AB (HD 218430) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
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.)
 
 
DISCOVERER
 
 
idgroup discov author
1 BU Burnham, S.W. (BU 1 - 81)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
23078+1240 BU 1025 AB 1996 34 316 0.8 7.77 9.75 A9III D 230748.16+124023.5
23078+1240 BU 1025 AB 2008 35 327 0.8 7.77 9.75 A9III D 230748.16+124023.5
23078+1240 BU 1025 AB 2016 36 329 0.8 7.77 9.75 A9III 230748.16+124023.5

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

 
 
WDS 23078+1240 BU 1025 AB (HD 218430) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 23078+1240 BU 1025 AB (HD 218430) : MEASURES
 
 
No records found.

 
 
WDS 23078+1240 (HD 218430) : VIRTUAL EYEPIECE
 
 

23078+1240 BU 1025A mag 7.77 Sp A9III 23078+1240 BU 1025B sep 0.8 P.A. 329.60 mag 9.75 23078+1240 BU 1025C sep 21.2 P.A. 83.50 mag 11.7 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 23078+1240 (HD 218430) : ALADIN DSS IMAGE @ 23h 07m 48.16s +12° 40' 23.5"
 
 
 
 
WDS 23078+1240 BU 1025 AB (HD 218430) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

23078+1240 BU 1025AB distance=0' 23078+1229 GRV 637 distance=11' 23069+1246 BRT1364 distance=15' 23064+1235 HDS3291Aa,Ab distance=21' 23064+1235 GIC 188AB distance=21' 23052+1226 GWP3230 distance=42' 23100+1208 KPP2346 distance=46' 23049+1216 DBR 324 distance=50' 23060+1323 BPM2475 distance=51' 23067+1152 GWP3234 distance=52' 23098+1150 GWP3245 distance=58' 23103+1152 CVR 976 distance=62' 23125+1233 LAS 1AB distance=70' 23125+1233 LAS 1AC distance=70' 23094+1350 BPM2477 distance=74' 23129+1233 HJ 3176 distance=76' 23113+1144 ROE 133 distance=77' 23117+1338 HEI 413 distance=80' 23023+1251 NSN 10 distance=81' 23033+1129 ROE 132AB distance=98' 23033+1129 GII 71Aa,Ab distance=98' 23015+1202 BPM2473 distance=101' 23088+1058 A 1238CD distance=104' 23088+1058 A 1238AB distance=104' 23088+1058 A 1238AB,CD distance=104' 23010+1202 A 1237 distance=108' 23007+1206 BRT1362 distance=110' 23100+1426 STF2986 distance=110' 23053+1056 GRV 633 distance=111' 22599+1251 GWP3219 distance=117' 23043+1054 SKF 246 distance=119' 23056+1435 AG 425 distance=120' 23096+1043 HJ 304 distance=121' 23022+1408 KPP 684 distance=121' 23139+1402 GRV 654 distance=122' 23156+1156 GWP3261 distance=123' 23065+1039 GRV 634 distance=123' 23161+1212 KPP4308 distance=125' 23134+1104 STF2991 distance=128' 22593+1212 OSO 186 distance=128' 23068+1448 BPM2476 distance=129' 23163+1324 BRT1366 distance=132' 23165+1320 ITF 10 distance=133' 23133+1425 GRV 651 distance=134' 23003+1400 BU 850 distance=136' 22592+1144 STT 483 distance=139' 22586+1203 STTA241 distance=141' 23126+1444 LDS5059 distance=142' 22582+1306 HJ 3156 distance=144' 23131+1040 FRK 13 distance=144' 22595+1405 SLN 46 distance=148' 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 23078+1240 BU 1025 AB 329 0.8
Show 23078+1240 BU 1025 AC 84 21.7
Show 23078+1229 GRV 637 149 79.0 11
Show 23069+1246 BRT1364 258 4.8 15
Show 23064+1235 HDS3291 Aa,Ab 336 0.5 21
Show 23064+1235 GIC 188 AB 36 37.2 21
Show 23052+1226 GWP3230 221 27.9 42
Show 23100+1208 KPP2346 330 20.1 46
Show 23049+1216 DBR 324 199 3.7 50
Show 23060+1323 BPM2475 156 53.0 51
Show 23067+1152 GWP3234 192 6.9 52
Show 23098+1150 GWP3245 317 10.3 58
Show 23103+1152 CVR 976 5 22.9 62
Show 23125+1233 LAS 1 AB 256 6.7 70
Show 23125+1233 LAS 1 AC 189 10.5 70
Show 23094+1350 BPM2477 52 6.6 74
Show 23129+1233 HJ 3176 344 26.9 76
Show 23113+1144 ROE 133 324 2.1 77
Show 23117+1338 HEI 413 122 3.4 80
Show 23023+1251 NSN 10 300 5.2 81
Show 23033+1129 ROE 132 AB 73 1.1 98
Show 23033+1129 GII 71 Aa,Ab 33 0.1 98
Show 23015+1202 BPM2473 259 101.9 101
Show 23088+1058 A 1238 CD 121 1.3 104
Show 23088+1058 A 1238 AB 70 0.2 104
Show 23088+1058 A 1238 AB,CD 292 75.2 104
Show 23010+1202 A 1237 158 3.3 108
Show 23007+1206 BRT1362 144 4.7 110
Show 23100+1426 STF2986 269 31.4 110
Show 23053+1056 GRV 633 250 13.3 111
Show 22599+1251 GWP3219 219 11.2 117
Show 23043+1054 SKF 246 117 2.0 119
Show 23056+1435 AG 425 190 28.1 120
Show 23096+1043 HJ 304 181 25.6 121
Show 23022+1408 KPP 684 229 6.1 121
Show 23139+1402 GRV 654 69 27.0 122
Show 23156+1156 GWP3261 59 6.1 123
Show 23065+1039 GRV 634 99 41.6 123
Show 23161+1212 KPP4308 359 1.4 125
Show 23134+1104 STF2991 358 32.5 128
Show 22593+1212 OSO 186 91 22.7 128
Show 23068+1448 BPM2476 106 75.4 129
Show 23163+1324 BRT1366 181 3.6 132
Show 23165+1320 ITF 10 328 26.2 133
Show 23133+1425 GRV 651 99 16.3 134
Show 23003+1400 BU 850 121 3.3 136
Show 22592+1144 STT 483 31 0.4 139
Show 22586+1203 STTA241 160 84.9 141
Show 23126+1444 LDS5059 238 71.1 142
Show 22582+1306 HJ 3156 294 23.1 144
Show 23131+1040 FRK 13 4 21.3 144

 
 
WDS 23078+1240 : COMPONENTS
 
 
  A B
B pa=329.6°
sep=0.76"
 
C pa=83.5°
sep=21.21"
pa=85.4°
sep=21.53"
 
 
23078+1240 A
 
 
Name HD 218430 Coord arcsec 2000 230748.16+124023.5 Mag 7.77 Spectral class A9III (white)
PmRA -17.00 PmDE -14.0 SAO 108415 HIP 114215
Tycho2 1166-01376-1 HD 218430 ADS 16524 BD BD+11 4940
Tycho2
Tycho2 1166-01376-1 Pflag RAmdeg 346.95060241 DEmdeg 12.67316455
PmRA -17.4 PmDE -14.2 E RAmdeg 4 E DEmdeg 5
E pmRA 1.0 E pmDE 1.0 EpRAm 1991.41 EpDEm 1991.13
Num 14 Q RAmdeg 1.0 Q DEmdeg 1.6 Q pmRA 1.1
Q pmDE 1.6 BTmag 8.011 E BTmag 0.016 VTmag 7.664
E VTmag 0.011 Prox 999 TYC T HIP 114215
CCDM AB RAdeg 346.95064333 DEdeg 12.67319750 EpRA 1990 1.73
EpDE 1990 1.59 E RAdeg 4.2 E DEdeg 5.0 Posflg P
Corr -0.2
SAO
SAO 108415 DelFlag RA1950 PmRA1950 -0.0007
DE1950 PmDE1950 -0.012 Vmag 7.9 SpType F0
Double code Source 29 CatNum 9218 DM BD+11 4940
DMcomp BDsup HD 218430 M HD 0
GC RA1950rad 6.04450275 DE1950rad 0.21646503 PmRA2000 -0.0006
PmDE2000 -0.017
Hipparcos
Catalog H HIP 114215 Proxy H RAhms 23 07 48.16
DEdms +12 40 23.5 Vmag 7.6 VarFlag R Vmag G
RAdeg 346.951 DEdeg 12.6732 AstroRef A Plx 9.93
CCDM 23078+1240 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 318 Rho 0.804 HD 218430 BD BD+11 4940
CD CP Dm number +11 4940 VIred 0.42
SpType F0 R SpType Coord arcsec 2000 230748.16+124023.5
Hipparcos 2
HIP 114215 Sn 15 So 3 Nc 2
RArad 6.0554311796 DErad 0.2211888915 Plx 7.47 PmRA -19.76
PmDE -13.01 E RArad 0.88 E DErad 0.54 E Plx 0.95
E pmRA 1.04 E pmDE 0.89 Hpmag 7.6539 E Hpmag 0.0011
SHp 0.01 VA 0 BV 0.355 E BV 0.015
VI 0.42
CCDM
Ccdm 23078+1240 RComp Comp A Note1
Note2 Discov num DRAs 0.15 DDEs 24.0
R dRAs 10 Year Theta Rho
Obs 3 Vmag 7.9 Sp F0 PmNote *
PmRA -12 PmDE 0 Dm number +11 4940 Cat1 BD
Name2 +12 2720 Cat2 AGK2/3 HD 218430 M HD
ADS BDS A16524 M ADS BDS N IDS IDS 23028N1208A
HIC 114215
 
 
23078+1240 B
 
 
Coord arcsec 2000 230748.13+124024.2 Mag 9.75 PmRA -17.00 PmDE -14.0
Calc delta mag 1.98 Calc coord yes
CCDM
Ccdm 23078+1240 RComp Comp B Note1
Note2 Discov num BU 1025 DRAs DDEs
R dRAs Year 1957 Theta 304 Rho 0.8
Obs 16 Vmag 10.7 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A16524 M ADS BDS N IDS IDS 23028N1208B
HIC 114215
 
 
23078+1240 C
 
 
Coord arcsec 2000 230749.60+124025.9 Mag 11.7 PmRA -21.00 PmDE -9.0
Calc delta mag 3.93 Calc coord yes
CCDM
Ccdm 23078+1240 RComp Comp C Note1
Note2 Discov num BU 1025 DRAs DDEs
R dRAs Year 1891 Theta 084 Rho 22.1
Obs 8 Vmag 11.7 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A16524 M ADS BDS N IDS IDS 23028N1208C
HIC