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Current system
12349-0509
RST 4502
HD 109452


Nearby doubles
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TOK 150

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SLW 764

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A 78

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UC 2350AB

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HJ 215



Selections
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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.

12349-0509 RST 4502 (HD 109452)

 
 
12h 34m 53.38s -05° 09' 17.0" P.A. 249.00 sep 0.2 mag 8.49,9.34 Sp A5 dist. 265.96 pc (867.56 l.y.)
 
 
Coord 2000 12349-0509 Discov num RST4502 Comp Coord arcsec 2000 12 34 53.38 -05 09 17.0
Date first 1938 Date last 2023 Obs 19
Pa first 68 Pa last 248.5 P.A. Now (θ) 248.5°
Sep first 0.2 Sep last 0.185 Sep. Now (ρ) 0.185"
Mag pri 8.49 Mag sec 9.34 delta mag (ΔM) 0.85 Spectral class A5 (white)
Pri motion ra -030 Sec motion ra
Pri motion dec -005 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 109452 Constellation Virgo SAO 138857 HIP 61400
Tycho2 4954-00328-1 Gaia DR2 3679932725152848512 HD 109452 BD BD-04 3307
Distance 265.96 Distance ly 867.56
 
 
ORBITAL ELEMENTS
 
 
Period (P)223.477y Periastron (T)2006.343y Semi-major axis (a)0.2261a
Eccentricity (e)0.2 Inclination (i)66.1° Longitude of periastron (ω)151°
Node (Ω)63.6° Notes ReferenceTok2024c
Equinox Last observation Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 221.8 0.140
2001 223.5 0.143
2002 225.0 0.147
2003 226.5 0.151
2004 227.9 0.154
2005 229.2 0.158
2006 230.5 0.161
2007 231.7 0.164
2008 232.9 0.167
2009 234.1 0.170
2010 235.2 0.172
2011 236.3 0.174
2012 237.4 0.177
2013 238.4 0.178
2014 239.4 0.180
2015 240.4 0.182
2016 241.4 0.183
2017 242.4 0.184
2018 243.3 0.185
2019 244.3 0.185
2020 245.2 0.186
2021 246.2 0.186
2022 247.1 0.186
2023 248.1 0.185
2024 249.1 0.185
2025 250.0 0.184
2026 251.0 0.183
2027 252.0 0.182
2028 252.9 0.181
2029 254.0 0.180
2030 255.0 0.178
2031 256.0 0.176
2032 257.1 0.174
2033 258.2 0.172
2034 259.3 0.170
2035 260.4 0.168
2036 261.6 0.166
2037 262.8 0.163
2038 264.1 0.160
2039 265.4 0.158
2040 266.7 0.155
2041 268.1 0.152
2042 269.5 0.149
2043 271.0 0.146
2044 272.6 0.143
2045 274.2 0.140
2046 275.9 0.137
2047 277.7 0.134
2048 279.6 0.131
2049 281.6 0.128
2050 283.6 0.125


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds12349-0509b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic