بلغات أخرى
- البنغاليّة: নৈমিত্তিক ছায়াপথ
- الألمانيّة: Irreguläre Galaxie
- الإنجليزيّة: Irregular Galaxy
- الفرنسيّة: Galaxie irrégulière
- الإيطاليّة: Galassia irregolare
- اليابانيّة: 不規則銀河 (رابط خارجي)
- الكوريّة: 불규칙은하
- البرتغاليّة البرازيليّة: Galáxia Irregular
- الصينيّة المبسطة: 不规则星系
- الصينيّة التقليدية: 不規則星系
وسائط ذات صلة
NGC 5264 - An irregular island
الشرح: The dwarf irregular galaxy NGC 5264 is located 15 million light years away. It is only about 11,000 light years across, much smaller than our Milky Way, and consists of approximately a billion stars. It lacks the spiral structure of our home Galaxy. The small blue patches in NGC 5264 mark groups of young hot blue stars. This suggests that stars formation in this galaxy is still on-going.
المصدر: ESA/Hubble and NASA
رابط المصدر
License: CC-BY-4.0 المشاع الإبداعي نَسب المُصنَّف 4.0 دولي (CC BY 4.0) أيقونات
الرسوم التوضيحية المرتبطة
Sculptor Constellation Map
الشرح: The constellation Sculptor with its brighter stars and surrounding constellations. Sculptor is surrounded by (going clockwise from the top): Cetus, Aquarius, Piscis Austrinus, Grus, Phoenix and Fornax.
Sculptor is a southern constellation and thus the whole constellation is visible at some point in the year throughout the southern hemisphere. The whole constellation is also visible in equatorial and most temperate regions of the northern hemisphere. Parts of the constellation are also visible to the remaining northern temperate regions. Sculptor is best viewed in the evening in the late northern hemisphere autumn and late southern hemisphere spring.
The irregular galaxy NGC 55, and the spiral galaxies NGC 253 and NGC 300 all lie in Sculptor. There are marked here with red ellipses.
The y-axis of this diagram is in degrees of declination with north as up and the x-axis is in hours of right ascension with east to the left. The sizes of the stars marked here relate to the star's apparent magnitude, a measure of its apparent brightness. The larger dots represent brighter stars. The Greek letters mark the brightest stars in the constellation. These are ranked by brightness with the brightest star being labeled alpha, the second brightest beta, etc., although this ordering is not always followed exactly. The dotted boundary lines mark the IAU's boundaries of the constellations and the solid green lines mark one of the common forms used to represent the figures of the constellations. Neither the constellation boundaries, nor the lines joining the stars appear on the sky.
المصدر: Adapted by the IAU Office of Astronomy for Education from the original by the IAU and Sky & Telescope
License: CC-BY-4.0 المشاع الإبداعي نَسب المُصنَّف 4.0 دولي (CC BY 4.0) أيقونات
