Read More
Date: 17-8-2020
1313
Date: 28-8-2020
1654
Date: 24-7-2020
1582
|
Ecliptic Coordinate System
In the ecliptic coordinate system, the reference is the plane of the ecliptic that is, the plane formed by Earth’s orbit around the sun. The orbits of the other planets in the solar system, with the except of Pluto, lie within 7° of this plane. (Pluto’s orbit is inclined 17° to the ecliptic.) The coordinates of an object are given as celestial longitude, measured eastward along the ecliptic from the vernal equinox, and celestial latitude, measured north (+) or south (-) from the ecliptic. This system is handy for studying the solar system.
|
|
حقن "تنحيف" قاتلة.. تحذير عاجل من منظمة الصحة العالمية
|
|
|
|
|
"أقزام بنية" من نوع غير مألوف اكتُشفت في مجرة درب التبانة
|
|
|
|
|
أسئلة في علوم القرآن الكريم وأجوبتها.. الإصدار الأوّل ضمن مشروع (دليل الباحث القرآنيّ)
|
|
|