18455+0530 FIN 332 Ba,Bb

 
 
18h 45m 28.36s +05° 30' 00.4" P.A. 324.00 sep 0.1 mag 7.48,7.48 Sp A1V+... dist. 188.68 pc (615.47 l.y.)
 
 
Coord 2000 18455+0530 Discov num FIN 332 Comp Ba,Bb Coord arcsec 2000 18 45 28.36 +05 30 00.4
Date first 1953 Date last 2021 Obs 58
Pa first 315 Pa last 324.4 P.A. Now (θ) 323.4°
Sep first 0.1 Sep last 0.125 Sep. Now (ρ) 0.131"
Mag pri 7.48 Mag sec 7.48 delta mag (ΔM) 0 Spectral class A1V+... (white)
Pri motion ra +009 Sec motion ra +009
Pri motion dec -003 Sec motion dec -003
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
18455+0530 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 123886 18 45 28 +05 30 00 FIN 332 Aa,Ab 2021 75 142 0.0 6.91 7.31 0.40 Y
Show HD 173495 123886 18 45 28 +05 30 00 STF 2375 AB 2019 307 120 2.6 6.34 6.73 0.39 Y
Show 123886 18 45 28 +05 30 00 FIN 332 Ba,Bb 2021 58 324 0.1 7.48 7.48 0.00 Y <===
Quadruple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Serpens SAO 123886 HIP 92027 Tycho2 0456-01022-1
Gaia DR2 4285283042432285568 HD 173495 HR 7048 ADS 11640
BD BD+05 3941 Distance 188.68 Distance ly 615.47
 
 
ORBITAL ELEMENTS
 
 
Period (P)39.76y± 0.37 Periastron (T)2005.09y± 0.33 Semi-major axis (a)0.12a± 0.008
Eccentricity (e)0.843± 0.02 Inclination (i)106.9°± 1.6 Longitude of periastron (ω)305.9°± 4.1
Node (Ω)119.3°± 1.5 Notesn ReferenceTok2020k
Equinox Last observation Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 306.6 0.118
2001 305.0 0.106
2002 302.9 0.091
2003 299.8 0.071
2004 293.4 0.043
2005 160.5 0.008
2006 103.0 0.030
2007 79.4 0.029
2008 53.9 0.028
2009 30.6 0.032
2010 13.2 0.038
2011 1.2 0.045
2012 352.8 0.054
2013 346.7 0.062
2014 342.1 0.071
2015 338.5 0.079
2016 335.5 0.087
2017 333.0 0.094
2018 330.9 0.102
2019 329.0 0.108
2020 327.4 0.115
2021 325.9 0.121
2022 324.6 0.126
2023 323.4 0.131
2024 322.2 0.136
2025 321.1 0.140
2026 320.1 0.143
2027 319.2 0.146
2028 318.2 0.149
2029 317.3 0.151
2030 316.4 0.152


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



 
 


wds18455%2B0530p.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
WDS 18455+0530 FIN 332 Ba,Bb : NOTES
 
 
discov_num notes refcode
STF2375 This remarkable quadruple system is comprised of two close (0".14)
pairs of similar position angle, discovered by Finsen with his Fin1953c
eyepiece interferometer. Our 1982 observations (McAlister et al. McA1987b
1987) were made at lower magnification and included all four stars in
the field. The resulting overlapping autocorrelation peaks precluded
measurement of the Aab or Bab pairs directly, but did permit measures
of the AB; Aa,Bb; and Ab,Ba configurations. In later observations
made at higher magnification we observed the A and B components
separately, enabling measurement of Aa,Ab and Ba,Bb but not AB.
Listed in the first speckle catalogue as STF 2375 AB,CD. McA1984b
FIN 332 Aa,Ab: Listed in the first speckle catalogue as Fin 332 AB. McA1984b
FIN 332 Ba,Bb: Listed in the first speckle catalogue as Fin 332 CD. McA1984b
 
 
REFERENCES
 
 
refcode metd author reference
Fin1953c J - Finsen, W.S. 1953MNSSA..12...86F
Fin1953c MNASSA 12, 86, 1953
McA1984b Sc j McAlister, H.A. & Hartkopf, W.I. ...................
McA1984b Catalog of Interferometric Measurements of Binary Stars, CHARA Contrib. #1, 1984
McA1984b (previously unpublished KPNO 2.1m and 3.8m data)
McA1987b Sc j McAlister, H.A., Hartkopf, W.I., Hutter, D.J., & Franz, O.G. 1987AJ.....93..688M
McA1987b AJ 93, 688, 1987
Tok2020k orb - Tokovinin, A. 2020AstL...46..612T
Tok2020k Ast. Lett. 46, 612, 2020
 
 
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
18455+0530 FIN 332 Ba,Bb 1997 43 130 0.1 7.19 7.95 NO 184528.36+053000.4
18455+0530 FIN 332 Ba,Bb 2008 44 42 0.0 7.19 7.95 NO 184528.36+053000.4
18455+0530 FIN 332 Ba,Bb 2015 55 337 0.1 7.19 7.95 A1V+... NO 184528.36+053000.4
18455+0530 FIN 332 Ba,Bb 2018 56 330 0.1 7.19 7.95 A1V+... NO 184528.36+053000.4
18455+0530 FIN 332 Ba,Bb 2019 57 328 0.1 7.19 7.95 A1V+... NO 184528.36+053000.4
18455+0530 FIN 332 Ba,Bb 2020 58 326 0.1 7.48 7.48 A1V+... NO 184528.36+053000.4
18455+0530 FIN 332 Ba,Bb 2021 58 324 0.1 7.48 7.48 A1V+... NO 184528.36+053000.4

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

 
 
WDS 18455+0530 FIN 332 Ba,Bb : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18455+0530 FIN 332 Ba,Bb : MEASURES
 
 
No records found.

 
 
WDS 18455+0530 : VIRTUAL EYEPIECE
 
 

18455+0530 STF2375A mag 6.34 Sp A1V 18455+0530 FIN 332Ab mag 7.31 Sp A1V 18455+0530 FIN 332B mag 7.48 Sp A1V 18455+0530 FIN 332Bb sep 0.1 P.A. 324.50 mag 7.48 Sp ... virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.

Radius:
Components only
 
 
WDS 18455+0530 : ALADIN DSS IMAGE @ 18h 45m 28.36s +05° 30' 00.4"
 
 
 
 
WDS 18455+0530 FIN 332 Ba,Bb : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


18455+0530  FIN 332Ba,Bb distance=0' 18437+0539  STT 361 distance=28' 18465+0504  KPP4120 distance=31' 18429+0545  BU  136 distance=42' 18428+0541  TOK 324 distance=42' 18433+0502  J   527 distance=43' 18454+0444  BAL2935 distance=46' 18425+0518  TDT1014 distance=46' 18427+0556  WOL   3AB distance=49' 18427+0556  CRT  11AC distance=49' 18427+0556  CRT  11AD distance=49' 18427+0556  CRT  11AE distance=49' 18427+0556  CRT  11AF distance=49' 18427+0556  CRT  11AG distance=49' 18427+0556  CRT  11AH distance=49' 18427+0556  CRT  11AI distance=49' 18427+0556  CRT  11AJ distance=49' 18427+0556  CRT  11AK distance=49' 18427+0556  CRT  11AL distance=49' 18427+0556  CRT  11AM distance=49' 18427+0556  CRT  11AN distance=49' 18427+0556  CRT  11AO distance=49' 18427+0556  CRT  11AP distance=49' 18427+0556  CRT  11AQ distance=49' 18427+0556  CRT  11AR distance=49' 18427+0556  CRT  11AS distance=49' 18427+0556  CRT  11AT distance=49' 18427+0556  CRT  11AU distance=49' 18427+0556  CRT  11AV distance=49' 18427+0556  CRT  11A,Wa distance=49' 18427+0556  CRT  11A,Wb distance=49' 18427+0556  CRT  11A,Wc distance=49' 18427+0556  CRT  11A,Wd distance=49' 18427+0556  CRT  11A,We distance=49' 18427+0556  CRT  11A,Wf distance=49' 18427+0556  CRT  11A,Wg distance=49' 18427+0556  CRT  11A,Wh distance=49' 18427+0556  CRT  11A,Wi distance=49' 18427+0556  CRT  11A,Wj distance=49' 18427+0556  CRT  11A,Wk distance=49' 18427+0556  CRT  11A,Wl distance=49' 18427+0556  CRT  11A,Wm distance=49' 18427+0556  CRT  11A,Wn distance=49' 18427+0556  CRT  11A,Wo distance=49' 18427+0556  CRT  11A,Wp distance=49' 18468+0443  TDT1051 distance=52' 18436+0444  A   357 distance=54' 18431+0612  CRT   9AB distance=55' 18431+0612  CRT   9AC distance=55' 18431+0612  CRT   9AD distance=55' 18431+0612  CRT   9AE distance=55' grafico limitrofi
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Pass over with the mouse cursor to display the catalog designation.

Show name coord_2000 discov# comp pa sep dist(')
Show 18455+0530 FIN 332 Aa,Ab 142 0.0
Show 18455+0530 STF2375 AB 120 2.6
Show 18455+0530 FIN 332 Ba,Bb 324 0.1
Show 18437+0539 STT 361 172 22.6 28
Show 18465+0504 KPP4120 1 1.8 31
Show 18429+0545 BU 136 7 4.6 42
Show 18428+0541 TOK 324 246 222.4 42
Show 18433+0502 J 527 40 3.2 43
Show 18454+0444 BAL2935 161 5.8 46
Show 18425+0518 TDT1014 339 0.7 46
Show 18427+0556 WOL 3 AB 307 2.5 49
Show 18427+0556 CRT 11 AC 163 3.1 49
Show 18427+0556 CRT 11 AD 223 4.1 49
Show 18427+0556 CRT 11 AE 217 7.6 49
Show 18427+0556 CRT 11 AF 56 8.0 49
Show 18427+0556 CRT 11 AG 263 8.8 49
Show 18427+0556 CRT 11 AH 5 10.4 49
Show 18427+0556 CRT 11 AI 113 10.8 49
Show 18427+0556 CRT 11 AJ 211 11.0 49
Show 18427+0556 CRT 11 AK 159 11.3 49
Show 18427+0556 CRT 11 AL 119 11.4 49
Show 18427+0556 CRT 11 AM 206 11.7 49
Show 18427+0556 CRT 11 AN 104 12.0 49
Show 18427+0556 CRT 11 AO 235 12.0 49
Show 18427+0556 CRT 11 AP 256 12.3 49
Show 18427+0556 CRT 11 AQ 178 12.8 49
Show 18427+0556 CRT 11 AR 13 12.8 49
Show 18427+0556 CRT 11 AS 4 13.4 49
Show 18427+0556 CRT 11 AT 293 13.5 49
Show 18427+0556 CRT 11 AU 94 14.5 49
Show 18427+0556 CRT 11 AV 102 14.8 49
Show 18427+0556 CRT 11 A,Wa 31 16.1 49
Show 18427+0556 CRT 11 A,Wb 164 16.4 49
Show 18427+0556 CRT 11 A,Wc 311 16.5 49
Show 18427+0556 CRT 11 A,Wd 237 16.7 49
Show 18427+0556 CRT 11 A,We 177 17.4 49
Show 18427+0556 CRT 11 A,Wf 50 17.6 49
Show 18427+0556 CRT 11 A,Wg 26 18.0 49
Show 18427+0556 CRT 11 A,Wh 221 18.2 49
Show 18427+0556 CRT 11 A,Wi 233 18.4 49
Show 18427+0556 CRT 11 A,Wj 77 18.8 49
Show 18427+0556 CRT 11 A,Wk 62 18.9 49
Show 18427+0556 CRT 11 A,Wl 292 18.9 49
Show 18427+0556 CRT 11 A,Wm 31 19.6 49
Show 18427+0556 CRT 11 A,Wn 120 19.6 49
Show 18427+0556 CRT 11 A,Wo 315 19.7 49
Show 18427+0556 CRT 11 A,Wp 332 20.0 49
Show 18468+0443 TDT1051 168 1.6 52
Show 18436+0444 A 357 71 0.6 54
Show 18431+0612 CRT 9 AB 271 4.4 55
Show 18431+0612 CRT 9 AC 258 4.6 55

 
 
WDS 18455+0530 : COMPONENTS
 
 
  A Ab B
Ab pa=141.8°
sep=0.01"
 
B pa=0.0°
sep=0.00"
pa=321.8°
sep=0.01"
 
Bb pa=324.5°
sep=0.12"
pa=324.3°
sep=0.14"
pa=324.5°
sep=0.12"
 
 
18455+0530 A
 
 
Name HD 173495 Coord arcsec 2000 184528.36+053000.4 Mag 6.34 Spectral class A1V (white)
PmRA 9.00 PmDE -3.0 SAO 123886 HIP 92027
Tycho2 0456-01022-2 HD 173495 HR 7048 GC 25674
ADS 11640 BD BD+05 3941
Tycho2
Tycho2 0456-01022-2 Pflag P RAmdeg 281.36838204 DEmdeg 5.50000042
PmRA 9.4 PmDE -2.5 E RAmdeg 4 E DEmdeg 4
E pmRA 2.0 E pmDE 1.9 EpRAm 1991.76 EpDEm 1991.68
Num 5 Q RAmdeg 1.5 Q DEmdeg 0.5 Q pmRA 1.5
Q pmDE 0.5 BTmag 6.375 E BTmag 0.014 VTmag 6.338
E VTmag 0.010 Prox 25 TYC T HIP 92027
CCDM A RAdeg 281.36815306 DEdeg 5.50012167 EpRA 1990 1.82
EpDE 1990 1.74 E RAdeg 3.8 E DEdeg 4.2 Posflg D
Corr 0.1
SAO
SAO 123886 DelFlag RA1950 PmRA1950 0.0008
DE1950 PmDE1950 -0.01 Vmag 5.7 SpType A0
Double code Source 70 CatNum 25674 DM BD+05 3941
DMcomp BDsup HD 173495 M HD 0
GC 25674 RA1950rad 4.90007521 DE1950rad 0.09505659 PmRA2000 0.001
PmDE2000 -0.011
Hipparcos
Catalog H HIP 92027 Proxy H RAhms 18 45 28.36
DEdms +05 30 00.4 Vmag 5.82 VarFlag R Vmag G
RAdeg 281.368 DEdeg 5.50012 AstroRef A Plx 4.6
CCDM 18455+0530 N CCDM I Nsys 1 Ncomp 3
MultFlag C Source Qual B M HIP
Theta Rho HD 173495 BD BD+05 3941
CD CP Dm number +05 3941 VIred 0.06
SpType A1V R SpType Coord arcsec 2000 184528.36+053000.4
Hipparcos 2
HIP 92027 Sn 15 So 3 Nc 3
RArad 4.9108006148 DErad 0.0959952549 Plx 5.3 PmRA 14.32
PmDE 0.16 E RArad 0.72 E DErad 0.64 E Plx 0.85
E pmRA 1.04 E pmDE 0.87 Hpmag 5.8291 E Hpmag 0.0008
SHp 0.005 VA 0 BV 0.041 E BV 0.006
VI 0.06
CCDM
Ccdm 18455+0530 RComp Comp A Note1
Note2 Discov num DRAs -1.55 DDEs 0.0
R dRAs 10 Year Theta Rho
Obs 4 Vmag 6.5 Sp A0 PmNote *
PmRA 27 PmDE -1 Dm number +05 3941 Cat1 BD
Name2 +05 2590 Cat2 AGK2/3 HD 173495 M HD
ADS BDS A11640 M ADS BDS N IDS IDS 18406N0524A
HIC 92027
 
 
18455+0530 Ab
 
 
Coord arcsec 2000 184528.36+053000.4 Mag 7.31 Spectral class A1V (white) Calc delta mag 0.4
Calc coord yes
 
 
18455+0530 B
 
 
Coord arcsec 2000 184528.36+053000.4 Coord calc 184528.51+052959.1 Mag 7.48 Mag composta 6.73
Spectral class A1V (white) PmRA 9.00 PmDE -3.0 Calc delta mag 0.57
 
 
18455+0530 Bb
 
 
Coord arcsec 2000 184528.36+053000.5 Mag 7.48 Spectral class ... PmRA 9.00
PmDE -3.0 Calc delta mag 0.57 Calc coord yes