| 词条 | HD 88133 |
| 释义 |
| name = HD 88133 }}{{Starbox observe | epoch = J2000.0 | constell = Leo | ra = {{RA|10|10|07.6764}}[1] | dec = {{DEC|+18|11|12.7322}}[1] | appmag_v = 8.06 }}{{Starbox character | class = G5IV | variable = }}{{Starbox astrometry | radial_v = | prop_mo_ra = {{val|−11.076|0.119}}[1] | prop_mo_dec = {{val|−265.160|0.085}}[1] | parallax = 13.5561 | p_error = 0.0557 | parallax_footnote = [1] | absmag_v = }}{{Starbox detail | mass = | radius = | gravity = | luminosity = | temperature = | metal_fe = | age_gyr = | rotational_velocity = }}{{Starbox catalog | names = {{odlist | BD=+18 2326 | HIP=498131 | LTT=12725 | NLTT=23562 | SAO=98978 }}[6] }}{{Starbox reference | Simbad = HD+88133 }}{{Starbox end}} HD 88133 is an 8th magnitude star in the constellation of Leo. It is classified as a yellow subgiant star (spectral type G5IV). It is slightly more massive than our Sun, cooler and more luminous. As a subgiant, it has left the main sequence and started to evolve towards red gianthood. Located at a distance of 240 light years from Earth it is not in our immediate neighbourhood and thus not visible to the unaided eye. With a small telescope it should be easily visible. In 2004 a planet was found to orbit the star. {{OrbitboxPlanet begin| table_ref = [8] }}{{OrbitboxPlanet | exoplanet = b | mass = {{val|0.282|0.046|p=≥}} | semimajor = {{val|0.0479|0.0032}} | period = {{val|3.414887|0.000045}} | eccentricity = 0 (fixed) }}{{Orbitbox end}} See also
References1. ^1 2 3 4 5 {{Cite Gaia DR2|623408253837371392}} [1][2][3]2. ^1 {{cite journal | title=Radial Velocities from the N2K Project: Six New Cold Gas Giant Planets Orbiting HD 55696, HD 98736, HD 148164, HD 203473, and HD 211810 | last1=Ment | first1=Kristo | last2=Fischer | first2=Debra A. | last3=Bakos | first3=Gaspar | last4=Howard | first4=Andrew W. | last5=Isaacson | first5=Howard | display-authors=1 | journal=The Astronomical Journal | volume=156 | issue=5 | at=213 | year=2018 | arxiv=1809.01228 | bibcode=2018AJ....156..213M | doi=10.3847/1538-3881/aae1f5 }} 3. ^1 {{cite simbad | title=HD 88133 | access-date=2018-12-28 }} }} External links{{Sky|10|10|07.68|+|18|11|12.74|242.7}}{{Stars of Leo}}{{subgiant-star-stub}} 6 : G-type subgiants|Henry Draper Catalogue objects|Hipparcos objects|Leo (constellation)|Planetary systems|Durchmusterung objects |
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