The asteroid belt or main belt is a ring of small and large rocks and dust between the orbits of Mars and Jupiter. The biggest object in the asteroid belt is Ceres , a dwarf planet . The Kirkwood gaps separate the asteroid belt into several groups.
(6780) Borodin is a main-belt asteroid with an estimated diameter of 4 km and an orbital period of 3.37 years.  The score of the 1953 musical Kismet and the subsequent film version was based extensively on compositions by Borodin, such as the second string quartet, second symphony and piano works.
Ceres, also known as 1 Ceres, is the smallest dwarf planet in the Solar System and the only one in the main asteroid belt.. It was discovered on 1 January 1801, by Giuseppe Piazzi, and is named after the Roman goddess Ceres, as the goddess of growing plants, the harvest, and of motherly love.
The outer main-belt asteroid 1005 Arago, an inner ring of Neptune, the lunar crater Arago as well as the Martian crater Arago were also named in his honor. Two French cable ships were named after him, the François Arago of 1882 and the Arago of 1914/1931. Honours. Kingdom of Belgium: Officer of the Order of Leopold.
Mikhail Aleksandrovich Sholokhov (24 May 1905 – 21 February 1984) was a Soviet/Russian novelist and winner of the 1965 Nobel Prize in Literature.
Ejnar Hertzsprung (8 October 1873 – 21 October 1967) was a Danish chemist and astronomer born in Copenhagen. In the period 1911–1913, together with Henry Norris Russell , he helped to create the Hertzsprung–Russell diagram .
کمربند کویپر، (به انگلیسی: Kuiper Belt)، نخستینبار توسط اخترشناس هلندی تبار، جرارد کویپر عنوان شد؛ وی بر پایهٔ مدار برخی از دنبالهدارهای شناختهشده و وجود اجرامی مانند سیارهٔ کوتولهٔ پلوتون باور داشت که کمربندی از ...
1,735.97 کلومیٹر (0.273 Earths): چپٹا پن: 0.001 2 5: محیط: 10,921 کلومیٹر (خط استواial)
کمربند سیارکها یا کمربند اصلی یا کمربند اصلی سیارکها؛ (نامهایی که برای متمایز کردن این گروه از دیگر گروههای سیارکی سامانه مانند سیارکهای نزدیک به زمین و تروجانها به کار رفته)، یک قرص پیرا-ستارهای و منطقهای ...