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Current system
21477-3054
FIN 330 AB


Nearby doubles
32' : 21481-3023
RST2187

56' : 21452-3139
DAW 230AB

68' : 21528-3112
LDS5932

70' : 21509-3151
LDS4915

72' : 21530-3119
RST2188

74' : 21466-3206
UC 4558

80' : 21538-3114
LDS5934

87' : 21511-2938
LDS5929AB

90' : 21408-3102
HJ 3045

98' : 21553-3045
HJ 5304

99' : 21405-3127
DAW 155

105' : 21420-2940
HDS3090

107' : 21560-3055
HJ 5307AB

109' : 21551-3148
I 1449

115' : 21393-3018
SEE 451

119' : 21567-3123
B 1014

127' : 21575-3105
PRO 234

129' : 21514-2853
LDS5930

130' : 21528-2903
UC 4587

133' : 21449-3302
I 1051

138' : 21395-2928
HJ 5285

142' : 21368-3043
VOU 35AB

146' : 21581-3150
LDS5939

148' : 21389-2921
KPP4239

150' : 21576-2935
UC 4613

151' : 21593-3110
BRT3104



Selections
Full WDS
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.

21477-3054 FIN 330 AB

 
 
21h 47m 44.17s -30° 53' 53.9" P.A. 347.00 sep 0.1 mag 5.80,5.80 Sp A2V dist. 98.43 pc (321.08 l.y.)
 
 
Coord 2000 21477-3054 Discov num FIN 330 Comp AB Coord arcsec 2000 21 47 44.17 -30 53 53.9
Date first 1951 Date last 2021 Obs 29
Pa first 37 Pa last 346.8 P.A. Now (θ) 307.4°
Sep first 0.1 Sep last 0.066 Sep. Now (ρ) 0.043"
Mag pri 5.80 Mag sec 5.80 delta mag (ΔM) 0 Spectral class A2V (white)
Pri motion ra -032 Sec motion ra
Pri motion dec +002 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
21477-3054 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 213292 21 47 44 -30 53 54 FIN 330 AB 2021 29 347 0.1 5.80 5.80 0.00 Y <===
Show The PsA 213292 21 47 44 -30 53 54 HJ 5296 AB,C 2020 12 343 32.1 5.01 11.30 6.29
Triple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Piscis Austrinus SAO 213292 HIP 107608 Tycho2 7487-01984-1
Gaia DR2 6592981614920839168 HD 207155 HR 8326 GC 30509
CD CD-3118466 CP CP-31 6596 Bayer Theta Piscis Austrini Bayer name The PsA
Flamsteed 10 Piscis Austrini Flamsteed name 10 PsA FK5 3741 Distance 98.43
Distance ly 321.08 Bayer greek θ PsA
 
 
ORBITAL ELEMENTS
 
 
Period (P)20.218y± 0.13 Periastron (T)2007.26y± 0.16 Semi-major axis (a)0.124a± 0.0016
Eccentricity (e)0.427± 0.026 Inclination (i)108.4°± 0.9 Longitude of periastron (ω)215.2°± 3.1
Node (Ω)31.9°± 1.2 Notesn ReferenceTok2020e
Equinox Last observation Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 4.5 0.098
2001 353.9 0.075
2002 334.4 0.054
2003 298.0 0.042
2004 257.6 0.049
2005 233.6 0.066
2006 218.7 0.077
2007 204.4 0.067
2008 170.7 0.034
2009 77.1 0.038
2010 50.6 0.078
2011 41.7 0.111
2012 36.6 0.136
2013 32.8 0.152
2014 29.7 0.161
2015 26.7 0.164
2016 23.8 0.161
2017 20.6 0.152
2018 17.0 0.139
2019 12.4 0.123
2020 6.2 0.102
2021 356.7 0.080
2022 339.8 0.058
2023 307.4 0.043
2024 265.1 0.046
2025 237.7 0.063
2026 221.6 0.076
2027 208.0 0.071
2028 182.9 0.041
2029 91.7 0.031
2030 53.7 0.069


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


 
  


wds21477-3054f.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 21477-3054 FIN 330 AB : NOTES
 
 
discov_num notes refcode
FIN 330 the PsA = 10 PsA
AB: Malkov et al. (2012) derive dynamical, photometric, and
spectroscopic masses 5.52 +/- 1.62, 5.30, and 2.09 Msun, respectively. Mlk2012
AB: Docobo & Andrade (2013) derive a dynamical parallax of 11.17 +/-
0.41 mas and component masses 2.32 +/- 0.33 and 2.32 +/- 0.33 Msun.
See paper for extensive notes on this system. Doc2013d
 
 
REFERENCES
 
 
refcode metd author reference
Doc2013d orb - Docobo, J.A. & Andrade, M. 2013MNRAS.428..321D
Doc2013d MNRAS 428, 321, 2013
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
Tok2020e St j Tokovinin, A., Mason, B.D., Mendez, R.A., Costa, E. & Horch, E.P. 2020AJ....160....7T
Tok2020e +orb AJ 160, 7, 2020
 
 
DISCOVERER
 
 
idgroup discov author
1 FIN Finsen, W.S.
171 HJ Herschel, J.F.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21477-3054 FIN 330 AB 1996 17 23 0.1 5.80 5.80 A2V NO 214744.17-305353.9
21477-3054 FIN 330 AB 2008 23 91 0.0 5.80 5.80 A2V NO 214744.17-305353.9
21477-3054 FIN 330 AB 2010 24 44 0.1 5.80 5.80 A2V NO 214744.17-305353.9
21477-3054 FIN 330 AB 2012 24 33 0.2 5.80 5.80 A2V NO 214744.17-305353.9
21477-3054 FIN 330 AB 2015 25 24 0.2 5.80 5.80 A2V NO 214744.17-305353.9
21477-3054 FIN 330 AB 2018 26 15 0.1 5.80 5.80 A2V NO 214744.17-305353.9
21477-3054 FIN 330 AB 2019 27 10 0.1 5.80 5.80 A2V NO 214744.17-305353.9
21477-3054 FIN 330 AB 2020 28 359 0.1 5.80 5.80 A2V NO 214744.17-305353.9
21477-3054 FIN 330 AB 2021 29 347 0.1 5.80 5.80 A2V NO 214744.17-305353.9

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

 
 
WDS 21477-3054 FIN 330 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21477-3054 FIN 330 AB : MEASURES
 
 
No records found.

 
 
WDS 21477-3054 : VIRTUAL EYEPIECE
 
 

21477-3054 FIN 330A mag 5.8 Sp A2V 21477-3054 FIN 330B sep 0.1 P.A. 348.60 mag 5.8 21477-3054 HJ 5296C sep 31.7 P.A. 344.90 mag 11.3 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 21477-3054 : ALADIN DSS IMAGE @ 21h 47m 44.17s -30° 53' 53.9"
 
 
 
 
WDS 21477-3054 FIN 330 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21477-3054 FIN 330AB distance=0' 21481-3023 RST2187 distance=32' 21452-3139 DAW 230AB distance=56' 21452-3139 HJ 5293AC distance=56' 21528-3112 LDS5932 distance=68' 21509-3151 LDS4915 distance=70' 21530-3119 RST2188 distance=72' 21466-3206 UC 4558 distance=74' 21538-3114 LDS5934 distance=80' 21511-2938 LDS5929AB distance=87' 21511-2938 LDS5929Aa,Ab distance=87' 21408-3102 HJ 3045 distance=90' 21553-3045 HJ 5304 distance=98' 21405-3127 DAW 155 distance=99' 21420-2940 HDS3090 distance=105' 21560-3055 HJ 5307AB distance=107' 21560-3055 HJ 5307BC distance=107' 21551-3148 I 1449 distance=109' 21393-3018 SEE 451 distance=115' 21567-3123 B 1014 distance=119' 21575-3105 PRO 234 distance=127' 21514-2853 LDS5930 distance=129' 21528-2903 UC 4587 distance=130' 21449-3302 I 1051 distance=133' 21395-2928 HJ 5285 distance=138' 21368-3043 VOU 35AB distance=142' 21368-3043 TOK 386AC distance=142' 21581-3150 LDS5939 distance=146' 21389-2921 KPP4239 distance=148' 21576-2935 UC 4613 distance=150' 21593-3110 BRT3104 distance=151' 21363-3026 B 532 distance=151' 21583-3207 RST2190 distance=154' 21585-2944 LSC 100 distance=156' 22000-3039 BUG 6 distance=160' 21352-3033 HJ 5280 distance=164' 21597-2959 COO 247 distance=165' 21349-3044 UC 4501 distance=167' 21406-2834 B 533 distance=168' 21423-2821 RST2185 distance=169' 21589-3227 LDS4929 distance=171' 21558-3313 TSN 200 distance=174' 21487-3351 RSS 564 distance=178' 21342-3013 LDS5925 distance=179' 21540-3334 LDS4919 distance=179' 21416-2813 HJ 3046AB distance=181' 21416-2813 UC 4530AC distance=181' 21508-2756 HJ 3059 distance=183' 21463-3401 RSS 563 distance=188' 21595-2903 HJ 5311AB distance=189' 21595-2903 HJ 5311AC distance=189' 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 21477-3054 FIN 330 AB 347 0.1
Show 21477-3054 HJ 5296 AB,C 343 32.1
Show 21481-3023 RST2187 107 2.0 32
Show 21452-3139 DAW 230 AB 106 13.1 56
Show 21452-3139 HJ 5293 AC 250 19.0 56
Show 21528-3112 LDS5932 173 167.0 68
Show 21509-3151 LDS4915 126 3.1 70
Show 21530-3119 RST2188 1 1.8 72
Show 21466-3206 UC 4558 251 18.4 74
Show 21538-3114 LDS5934 69 70.2 80
Show 21511-2938 LDS5929 AB 128 54.7 87
Show 21511-2938 LDS5929 Aa,Ab 326 1.1 87
Show 21408-3102 HJ 3045 253 34.6 90
Show 21553-3045 HJ 5304 255 9.2 98
Show 21405-3127 DAW 155 45 2.1 99
Show 21420-2940 HDS3090 350 0.1 105
Show 21560-3055 HJ 5307 AB 160 32.6 107
Show 21560-3055 HJ 5307 BC 161 26.2 107
Show 21551-3148 I 1449 268 0.3 109
Show 21393-3018 SEE 451 256 12.2 115
Show 21567-3123 B 1014 139 2.6 119
Show 21575-3105 PRO 234 66 3.3 127
Show 21514-2853 LDS5930 128 257.8 129
Show 21528-2903 UC 4587 187 10.5 130
Show 21449-3302 I 1051 290 20.0 133
Show 21395-2928 HJ 5285 290 10.0 138
Show 21368-3043 VOU 35 AB 307 0.1 142
Show 21368-3043 TOK 386 AC 6 0.5 142
Show 21581-3150 LDS5939 291 265.4 146
Show 21389-2921 KPP4239 79 1.6 148
Show 21576-2935 UC 4613 314 16.5 150
Show 21593-3110 BRT3104 226 3.4 151
Show 21363-3026 B 532 290 0.6 151
Show 21583-3207 RST2190 293 1.0 154
Show 21585-2944 LSC 100 172 0.1 156
Show 22000-3039 BUG 6 5 1.0 160
Show 21352-3033 HJ 5280 305 9.5 164
Show 21597-2959 COO 247 264 2.6 165
Show 21349-3044 UC 4501 42 58.5 167
Show 21406-2834 B 533 204 0.3 168
Show 21423-2821 RST2185 121 3.2 169
Show 21589-3227 LDS4929 353 113.1 171
Show 21558-3313 TSN 200 229 0.0 174
Show 21487-3351 RSS 564 172 57.9 178
Show 21342-3013 LDS5925 272 94.6 179
Show 21540-3334 LDS4919 118 36.2 179
Show 21416-2813 HJ 3046 AB 57 29.0 181
Show 21416-2813 UC 4530 AC 246 79.9 181
Show 21508-2756 HJ 3059 252 25.4 183
Show 21463-3401 RSS 563 322 10.7 188
Show 21595-2903 HJ 5311 AB 291 39.8 189

 
 
WDS 21477-3054 : COMPONENTS
 
 
  A B
B pa=348.6°
sep=0.07"
 
C pa=344.9°
sep=31.72"
pa=344.9°
sep=31.65"
 
 
21477-3054 A
 
 
Coord arcsec 2000 214744.17-305353.9 Mag 5.8 Spectral class A2V (white) PmRA -32.00
PmDE 2.0 SAO 213292 HIP 107608 Tycho2 7487-01984-1
HD 207155 HR 8326 GC 30509 CD CD-3118466
CP CP-31 6596 Bayer Theta Piscis Austrini Bayer name The PsA Flamsteed 10 Piscis Austrini
Flamsteed name 10 PsA FK5 3741
Tycho2
Tycho2 7487-01984-1 Pflag RAmdeg 326.93394969 DEmdeg -30.89830014
PmRA -36.6 PmDE 2.5 E RAmdeg 3 E DEmdeg 4
E pmRA 0.8 E pmDE 0.8 EpRAm 1991.45 EpDEm 1990.93
Num 19 Q RAmdeg 1.3 Q DEmdeg 1.2 Q pmRA 1.5
Q pmDE 1.2 BTmag 5.074 E BTmag 0.014 VTmag 5.022
E VTmag 0.009 Prox 999 TYC T HIP 107608
CCDM RAdeg 326.93404750 DEdeg -30.89830611 EpRA 1990 1.73
EpDE 1990 1.42 E RAdeg 3.3 E DEdeg 3.6 Posflg
Corr -0.2
SAO
SAO 213292 DelFlag RA1950 PmRA1950 -0.0018
DE1950 PmDE1950 0.001 Vmag 5.1 SpType A2
Double code Source 70 CatNum 30509 DM CD-3118466
DMcomp BDsup HD 207155 M HD 0
GC 30509 RA1950rad 5.69329394 DE1950rad -0.54333384 PmRA2000 -0.0018
PmDE2000 -0.002
Hipparcos
Catalog H HIP 107608 Proxy RAhms 21 47 44.17
DEdms -30 53 53.9 Vmag 5.02 VarFlag R Vmag H
RAdeg 326.934 DEdeg -30.8983 AstroRef Plx 9.63
CCDM 21477-3054 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual S M HIP
Theta Rho HD 207155 BD
CD CD-3118466 CP CP-31 6596 Dm number -3118466 VIred 0.06
SpType A1V R SpType Coord arcsec 2000 214744.17-305353.9
Hipparcos 2
HIP 107608 Sn 5 So 0 Nc 1
RArad 5.7060757051 DErad -0.5392771747 Plx 10.16 PmRA -34.4
PmDE -0.08 E RArad 0.28 E DErad 0.26 E Plx 0.4
E pmRA 0.34 E pmDE 0.33 Hpmag 5.0443 E Hpmag 0.0005
SHp 0.005 VA 0 BV 0.042 E BV 0.002
VI 0.06
CCDM
Ccdm 21477-3054 RComp Comp A Note1
Note2 Discov num DRAs 2.20 DDEs 7.0
R dRAs 41 Year Theta Rho
Obs 3 Vmag 5.8 Sp A2 PmNote *
PmRA -32 PmDE 1 Dm number -3118466 Cat1 CD
Name2 213292 Cat2 SAO HD 207155 M HD
ADS BDS M ADS BDS N IDS IDS 21419S3122A
HIC 107608
 
 
21477-3054 B
 
 
Coord arcsec 2000 214744.17-305353.8 Mag 5.8 Calc coord yes
CCDM
Ccdm 21477-3054 RComp Comp B Note1
Note2 Discov num FIN 330 DRAs DDEs
R dRAs Year 1959 Theta 006 Rho 0.1
Obs 6 Vmag 5.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 21419S3122B
HIC 107608
 
 
21477-3054 C
 
 
Coord arcsec 2000 214743.53-305323.3 Mag 11.3 PmRA -6.00 PmDE -15.0
Calc delta mag 5.5 Calc coord yes
CCDM
Ccdm 21477-3054 RComp Comp C Note1
Note2 Discov num HJ 5296 DRAs 1.23 DDEs 38.4
R dRAs 41 Year 1877 Theta 339 Rho 35.6
Obs 6 Vmag 11.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 21419S3122C
HIC