وسائط ذات صلة
Hubble Ultra Deep Field
الشرح: This awe-inspiring image referred to as the Hubble Ultra-Deep Field (HUDF), was obtained using the Hubble Space Telescope (HST), by combining 800 exposures from 400 orbits of the HST, which equates to 11.3 days of total exposure time.
The image shows nearly 10,000 galaxies and was taken in the direction of a patch of sky with the least amount of stars from the Milky Way galaxy in the field of view. The region of sky that the HST observed corresponds to 1/10 the angular size of the Full Moon, which is roughly equal to approximately a 1 millimeter-sized object placed 1 meter away.
Every object in the image, except for the bright points with the crosshairs, are galaxies. As a consequence of the speed of light being a constant in a vacuum, the more distant an object, the further back in time we are observing. Therefore, the light from some of the galaxies in the HUDF image is from when the Universe as only a few hundred million years old. The HUDF image takes us through on a journey through space, and also in time.
المصدر: NASA, ESA, and S. Beckwith (STScI) and the HUDF Team
رابط المصدر
License: CC-BY-4.0 المشاع الإبداعي نَسب المُصنَّف 4.0 دولي (CC BY 4.0) أيقونات
إندماج مجرة حلزونية
مجرة سومبريرو
The Lenticular Galaxy NGC 2787
الشرح: The lenticular galaxy NGC 2787. This galaxy is a disk galaxy but lacks the large, dominant spiral arm structure seen in the disks of spiral galaxies. Its core is very bright compared to the core of a spiral galaxy. Thin rings of dust can be seen in the galaxy's disk.
المصدر: NASA/ESA and The Hubble Heritage Team
رابط المصدر
License: CC-BY-4.0 المشاع الإبداعي نَسب المُصنَّف 4.0 دولي (CC BY 4.0) أيقونات
الرسوم التوضيحية المرتبطة
Leo Constellation Map
الشرح: The zodiac constellation Leo and its surrounding constellations. Starting from the top of the diagram and going clockwise, these are Leo Minor, Cancer, Sextans, Hydra, Crater, Virgo and Ursa Major. The brightest star in Leo, Regulus, lies almost exactly on the ecliptic (shown here as a blue line): the path the Sun appears to take across the sky over the course of a year. The Sun spends the period from mid August to mid September in Leo. The other planets in the Solar System can often be found in Leo.
Leo spans the celestial equator and is thus part of it is visible at some time in the year from all of planet Earth with some of the constellation obscured for the most arctic and antarctic regions of the world. Leo is most visible in the evenings in the northern hemisphere spring and southern hemisphere autumn.
Several objects can be seen in Leo, including M65 and M66 – two galaxies in the Leo Triplet, a trio of galaxies including NGC 3628, not listed here. In addition, M96, a spiral galaxy, can be seen as a fuzzy object using a small telescope, and Messier 105, an elliptical galaxy. Each of these objects are labelled on the map as 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 labelled 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 line marking the ecliptic, nor the lines joining the stars appear on the sky.
المصدر: Adapted by the IAU Office of Astronomy for Education from the original by IAU/Sky & Telescope
License: CC-BY-4.0 المشاع الإبداعي نَسب المُصنَّف 4.0 دولي (CC BY 4.0) أيقونات
الأنشطة المرتبطة
Glitter Your Milky Way
astroEDU educational activity (links to astroEDU website) Description: Explore the Milky Way and characteristics of galaxies using glitter drawing.
License: CC-BY-4.0 المشاع الإبداعي نَسب المُصنَّف 4.0 دولي (CC BY 4.0) أيقونات
وسوم:
Art
, Creativity
, Hands-on
, Handcraft
الفئات العمرية:
6-8
, 8-10
المرحلة التعليمية:
المرحلة المتوسطة
, المرحلة الابتدائية
مجالات التعلم:
يركز على الفنون الجميلة
التكاليف:
تكلفة متوسطة
حجم المجموعة:
جماعي
المهارات:
توصيل المعلومات
Coma Cluster of Galaxies
astroEDU educational activity (links to astroEDU website) Description: The basics of galaxy classification, using Hubble Space Telescope images.
License: CC-BY-4.0 المشاع الإبداعي نَسب المُصنَّف 4.0 دولي (CC BY 4.0) أيقونات
وسوم:
Coma Cluster
الفئات العمرية:
14-16
, 16-19
, 19+
المرحلة التعليمية:
المرحلة الثانوية
, الجامعة
مجالات التعلم:
تعلم استكشافي موجه
التكاليف:
تكلفة منخفضة
المدة:
ساعة واحدة
حجم المجموعة:
جماعي
المهارات:
تحليل البيانات وتفسيرها
, توصيل المعلومات
, صياغة التفسيرات
, تخطيط وتنفيذ التحقيقات
Living in the Milky Way
astroEDU educational activity (links to astroEDU website) Description: Build a model of the Milky Way to discover what our galaxy contains.
License: CC-BY-4.0 المشاع الإبداعي نَسب المُصنَّف 4.0 دولي (CC BY 4.0) أيقونات
وسوم:
Hands-on
, Model
الفئات العمرية:
6-8
, 8-10
المرحلة التعليمية:
المرحلة الابتدائية
مجالات التعلم:
حل المشكلات
, تعلم منظم قائم على الاستقصاء
التكاليف:
تكلفة متوسطة
المدة:
ساعة ونصف
حجم المجموعة:
جماعي
المهارات:
طرح الأسئلة
, توصيل المعلومات
, تطوير النماذج واستخدامها
