04509-5328 DUN 18 AB (Iot Pic)

 
 
04h 50m 55.31s -53° 27' 41.5" P.A. 58.00 sep 12.3 mag 5.61,6.24 Sp F0V+F4V dist. 41.56 pc (135.57 l.y.)
 
 
Coord 2000 04509-5328 Discov num DUN  18 Comp AB Coord arcsec 2000 04 50 55.31 -53 27 41.5
Date first 1826 Date last 2015 Obs 43
Pa first 60 Pa last 58.3 P.A. Now (θ) 58.3°
Sep first 12.6 Sep last 12.34 Sep. Now (ρ) 12.34"
Mag pri 5.61 Mag sec 6.24 delta mag (ΔM) 0.63 Spectral class F0V+F4V (yellow-white/yellow-white)
Pri motion ra -099 Sec motion ra -081
Pri motion dec +066 Sec motion dec +086
Notes N T (See Notes, Parallax indicates physical)
rPM=0.226 (< 0.3, Physical double)
This double is physical.
 
 
04509-5328 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Iot Pic 233709 04 50 55 -53 27 42 DUN 18 AB 2015 43 58 12.3 5.61 6.24 0.63 <===
Show 233709 04 50 55 -53 27 42 SHY 172 AC 1999 5 48 301.5 5.61 9.11 3.50
Show 233710 04 50 56 -53 27 35 SHY 173 BC 2016 7 48 289.4 6.24 9.11 2.87
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Iot Pic Constellation Pictor SAO 233709 HIP 22531
Tycho2 8510-01940-1 Gaia DR2 4777112872882315648 HD 31203 HR 1563
GC 5945 CP CP-53 760 Bayer Iota Pictoris Bayer name Iot Pic
Distance 41.56 Distance ly 135.57 Bayer greek ι Pic
 
 
WDS 04509-5328 DUN 18 AB (Iot Pic) : NOTES
 
 
discov_num notes refcode
DUN 18 iot Pic
SHY 172 AC: HIP 22531 + HIP 22562.
SHY 173 BC: HIP 22534 + HIP 22562.
In addition to the three visual components, which are physical, the A Tok2020h
component has two spectroscopic components with periods of 1.6d and
1003d. The B component also has a spectroscopic component with a period
of 208d making this a physical sextuple. The AB visual pair has an
estimated period of 6k yr and the wide AB,C pair has an estimated
period of 600k years.
 
 
REFERENCES
 
 
refcode metd author reference
Tok2020h not j Tokovinin, A. 2020AJ....160...69T
Tok2020h AJ 160, 69, 2020
 
 
DISCOVERER
 
 
idgroup discov author
1 DUN Dunlop, J.
3 SHY Shaya, E.J. & Olling, R.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
04509-5328 DUN 18 AB 2008 40 58 12.7 5.61 6.24 F0IV F4V: NZD 045055.31-532741.5
04509-5328 DUN 18 AB 2009 41 59 12.8 5.61 6.24 F0IV F4V: NZD 045055.31-532741.5
04509-5328 DUN 18 AB 2015 43 58 12.3 5.61 6.24 F0IV+F4V: NZW 045055.31-532741.5

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WDS 04509-5328 DUN 18 AB (Iot Pic) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 04509-5328 DUN 18 AB (Iot Pic) : MEASURES
 
 
No records found.

 
 
WDS 04509-5328 (Iot Pic) : VIRTUAL EYEPIECE
 
 

virtual eyepiece
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Radius:
Components only
 
 
WDS 04509-5328 (Iot Pic) : ALADIN DSS IMAGE @
 
 
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.