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Number of Results: 478

Hoyle state hâlat-e Hoyle Fr.: état de Hoyle An → In honor of the British astrophysicist Fred Hoyle (1915-2001), who predicted
this state in 1953 (Hoyle et al. 1953, Physical Review 92, 1095); it
was discovered by W. A. Fowler in 1957; → |

HRD nemudâr-e H-R Fr.: diagramme H-R Same as → Short for → |

Hubble Hubble (#) Fr.: Hubble Edwin Powell Hubble (1889-1953), the American astronomer who provided the
observational evidence of the expansion of the Universe in 1929;
→ |

Hubble classification radebandi-ye Hubble (#) Fr.: classification de Hubble The classification of galaxies according to their visual appearance into four
basic types suggested by E. Hubble:
→ → |

Hubble constant pâyâ-ye Hubble (#) Fr.: constante de Hubble |

Hubble Deep Field (HDF) meydân-e žarf-e Hubble (#) Fr.: champ profond de Hubble An image of a small region in the constellation → |

Hubble diagram nemudâr-e Hubble (#) Fr.: diagramme de Hubble A plot of the → |

Hubble distance durâ-ye Hubble Fr.: distance de Hubble The distance from the Earth to the → |

Hubble flow tacân-e Hubble Fr.: flot de Hubble |

Hubble law qânun-e Hubble Fr.: loi de Hubble |

Hubble length derâzâ-ye Hubble Fr.: longueur de Hubble The distance traveled by light along a straight → |

Hubble parameter pârânmun-e Hubble Fr.: paramètre de Hubble |

Hubble radius šo'â'-e Hubble (#) Fr.: rayon de Hubble The size of the observable Universe as derived from the ratio H is the
→ _{0}Hubble-Lemaitre constant and c
the → speed of light. Same as
→ Hubble distance, → Hubble length,
and → cosmic horizon. |

Hubble sequence peyâye-ye Hubble Fr.: séquence de Hubble A classification scheme in which galaxies are ordered into a sequence based on their morphology.
Same as the → |

Hubble Space Telescope (HST) durbin-e fazâyi-ye Hubble, teleskop-e ~ ~ (#) Fr.: télescope spatial de Hubble A telescope of 2.4 m in diameter, a joint NASA and ESA project, launched in 1990 into a low-Earth orbit 600 km above the ground. It was equipped with a collection of several science instruments that worked across the entire optical spectrum (from infrared, through the visible, to ultraviolet light). During its lifetime Hubble has become one of the most important science projects ever. |

Hubble time zamân-e Hubble (#) Fr.: temps de Hubble An estimate for the age of the Universe by presuming that the Universe
has always expanded at the same rate as it is expanding today. It is the
inverse of the → Hubble age or the Hubble period. |

Hubble-Lemaitre constant pâyâ-ye Hubble-Lemaître Fr.: constante de Hubble-Lemaître The → → |

Hubble-Lemaitre flow tacân-e Hubble-Lemaître Fr.: flot de Hubble-Lemaître The general outward motion of → → |

Hubble-Lemaitre law qânun-e Hubble-Lamaître Fr.: loi de Hubble-Lemaître The speed with which a → v is
the recessional velocity,
H the → _{0}Hubble-Lamaitre constant,
and d the distance. See also
→ Hubble-Lemaitre flow.
It should be underlined that Hubble was not the first to discover the
→ velocity-distance relation. Two years
before Hubble, in 1927, Georges Lemaître (1894-1966)
had derived the relation and published it in a paper in French which
remained neglected (→ Friedmann-Lemaitre Universe).The International Astronomical Union (IAU) at its 30th Meeting
approved the Resolution B4 proposed by the IAU Executive Committee
recommending the use of |

Hubble-Lemaitre parameter pârânmun-e Hubble-Lemaître Fr.: paramètre de Hubble-Lemaître The rate pf change of the → → |

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