| 词条 | HD 215456 |
| 释义 |
|constell= Grus |name= HD 215456 |type= G0.5V [1] |ra= {{RA|22|46|08.03550}}[1] |dec= {{DEC|−48|58|43.7580}}[1] |names={{odlist|CD=-49 13955|FK5=6008|HD=215456|HIP=112414|SAO=231285}}[1] }}HD 215456 is a star in the constellation Grus. With an apparent magnitude of 6.63, it is actually a yellow sunlike star located around 124 light-years distant from Earth.[1] It has two planets that are around 32 and 76 times as massive as the earth that have periods of just under 192 and 2226 days respectively. These were detected by the HARPS survey in 2011.[2] References1. ^1 2 3 4 SIMBAD, LTT 9179 -- High proper-motion Star (accessed 20 January 2014) {{Stars of Grus}}{{main-star-stub}}2. ^{{cite arxiv |last1=Mayor |first1=M. |last2=Marmier |first2=M. |last3=Lovis |first3=C. |last4=Udry |first4=S. |last5=Ségransan |first5=D. |last6=Pepe |first6=F. |last7=Benz |first7=W. |last8=Bertaux |first8=J.-L. |last9=Bouchy |first9=F. |last10=Dumusque |first10=X. |last11=Lo Curto |first11=G. |last12=Mordasini |first12=C. |last13=Queloz |first13=D. |last14=Santos |first14=N. C. |display-authors=1 |date=2011 |title=The HARPS Search for Southern Extra-solar Planets XXXIV. Occurrence, Mass Distribution and Orbital Properties of Super-Earths and Neptune-mass Planets |eprint=1109.2497 |class=astro-ph.EP}} 6 : G-type main-sequence stars|Grus (constellation)|Durchmusterung objects|Henry Draper Catalogue objects|Hipparcos objects|Planetary systems |
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