Ceres Dictionary of astronomy, letter C Ceres is the largest of the Asteroids or small planets and the first to have been discovered, by Giuseppe Piazzi, director of the astronomical observatory of Palermo, on January 1, 1801. It has a diameter of 1,000 km and complete a round around the Sun every 4.6 years, at an average distance of 413.
I wondered how time would be dilated for an object in the middle of 2 black holes, however https://en.wikipedia.org/wiki/Gravitational_time_dilation only provides a formula for one source of gravi…
I have just started studying Cosmology and we have been asked to prove that in an expanding FRW Universe which obeys the strong energy condition: $$
ho + 3P >0$$ Then there must exist a Big Bang
The brightest galaxy from our Milky Way is the Great Magellan (GNM). It is predominantly visible from the southern hemisphere, the GNM is the second nearest and neighboring galaxy of the Small Magellanic Cloud and is one of the eleven known dwarf galaxies that orbit our Milky Way. The GNM is an irregular galaxy composed of a bar of old and red stars, clouds of young stars and a bright region of formation that is visible at the top of this image called the Tarantula Nebula.
I was looking through sky yesterday and saw something red in sky (naked eye ) like nebula or something then tried using stellarium and mobile observatory apps to find out what it was, But couldnt f…
