بلغات أخرى
- الألمانيّة: Granulation
- الإنجليزيّة: Granulation
- الإسبانيّة: Granulación
- الفرنسيّة: Granulation
- الإيطاليّة: Granulazione
- اليابانيّة: 粒状斑 (رابط خارجي)
- النيبالية: कणिकीकरण
- البرتغاليّة البرازيليّة: Granulação
- الصينيّة المبسطة: 米粒组织
- الصينيّة التقليدية: 米粒組織
وسائط ذات صلة
صورة عالية الدقة لسطح الشمس
Close-up view of a sunspot
الشرح: This image of a sunspot was taken by the Daniel K Inouye Solar Telescope (DKIST), operated by the U.S. National Science Foundation. It was taken only in light with a wavelength of 530 nanometers, within the greenish-yellow part of the visible spectrum.
The picture reveals the detail of the spot's structure and the Sun’s photosphere. The dark central region, known as the umbra, is surrounded by a lighter area called the penumbra with radially elongated features stretching towards the umbra. Note that the umbra and penumbra here are not the same as the umbra and penumbra that occur during an eclipse.
The sunspot measures approximately 5000 kilometres in diameter, roughly equivalent to the east-west span of China. While the umbra appears black, it is actually hot and bright. It only appears dark because it is a few thousand kelvin cooler than the surrounding solar photosphere. Surrounding the sunspot, granulation patterns of plasma are visible on the photospheric surface of the Sun.
المصدر: NSO/NSF/AURA
رابط المصدر
License: CC-BY-4.0 المشاع الإبداعي نَسب المُصنَّف 4.0 دولي (CC BY 4.0) أيقونات
