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Current system
01078-4129
RST 3352
Ups Phe


Nearby doubles
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UC 505

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NSN 226

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TDS1675



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

01078-4129 RST 3352 (Ups Phe)

 
 
01h 07m 47.83s -41° 29' 13.0" P.A. 315.00 sep 0.3 mag 5.54,6.88 Sp A3IV dist. 56.95 pc (185.77 l.y.)
 
 
Coord 2000 01078-4129 Discov num RST3352 Comp Coord arcsec 2000 01 07 47.83 -41 29 13.0
Date first 1936 Date last 2023 Obs 48
Pa first 306 Pa last 315.3 P.A. Now (θ) 318.7°
Sep first 0.2 Sep last 0.331 Sep. Now (ρ) 0.327"
Mag pri 5.54 Mag sec 6.88 delta mag (ΔM) 1.34 Spectral class A3IV (white)
Pri motion ra +038 Sec motion ra
Pri motion dec +010 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Ups Phe Constellation Phoenix SAO 215374 HIP 5300
Tycho2 7537-00994-1 Gaia DR2 4987749854469123328 HD 6767 HR 331
GC 1378 CD CD-42 391 CP CP-42 111 Bayer Upsilon Phoenicis
Bayer name Ups Phe FK5 1031 Distance 56.95 Distance ly 185.77
Bayer greek υ Phe
 
 
ORBITAL ELEMENTS
 
 
Period (P)28.36y± 0.04 Periastron (T)2007.94y± 0.02 Semi-major axis (a)0.2396a± 0.0005
Eccentricity (e)0.424± 0.002 Inclination (i)65.3°± 0.3 Longitude of periastron (ω)333.9°± 0.4
Node (Ω)142.7°± 0.3 Notesn ReferenceDRs2012
Equinox Last observation2007 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 328.3 0.286
2001 331.9 0.260
2002 336.6 0.227
2003 343.0 0.187
2004 353.5 0.141
2005 14.6 0.094
2006 61.9 0.068
2007 109.2 0.092
2008 132.2 0.128
2009 146.6 0.144
2010 160.1 0.138
2011 176.7 0.120
2012 199.3 0.103
2013 227.1 0.099
2014 252.1 0.113
2015 269.8 0.139
2016 281.6 0.169
2017 289.8 0.199
2018 295.8 0.228
2019 300.6 0.255
2020 304.5 0.278
2021 307.8 0.297
2022 310.8 0.311
2023 313.5 0.322
2024 316.2 0.327
2025 318.7 0.327
2026 321.3 0.322
2027 324.1 0.311
2028 327.1 0.294
2029 330.5 0.270
2030 334.8 0.240
2031 340.4 0.202
2032 349.0 0.158
2033 4.9 0.110
2034 41.4 0.072
2035 95.7 0.080
2036 125.5 0.117
2037 141.8 0.142
2038 155.1 0.142
2039 170.1 0.127
2040 190.4 0.108
2041 216.9 0.099
2042 243.9 0.107
2043 264.3 0.129
2044 277.9 0.158
2045 287.2 0.189
2046 293.9 0.218
2047 299.0 0.246
2048 303.1 0.270
2049 306.7 0.290
2050 309.8 0.306


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds01078-4129a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic