Asteroids

For those with access to even a modest telescope and CCD camera, this new and improved guide delivers all the information needed to take part in the scientific study of asteroids and variable stars. New techniques in photometry continue to be refined, and expert Brian Warner covers the developing territory in detail for those both new and experienced. Updated to reflect changes in telescope and CCD technology, it also includes an expanded chapter on the analysis of asteroid lightcurves to cover some of the common pitfalls that lead to incorrect answers as well as how to discover an asteroid satellite via lightcurves. With this information, amateur astronomers can use commercially available equipment to determine the rotation rate, size, and shape of asteroids. Similarly, it is possible to discover the size, temperature, and orbits of stars in binary systems by using this powerful technique.

Learn about : Space, our SUN, Planets, Moons, Kuiper Belt, Oort cloud, Exoplanets, Galaxies, Asteroids and Meteors.

Хорошему домашнему ПК – море хороших игр! Этот сборник содержит более 900 отличных свободно распространяемых игр всех жанров, разбитых на разделы Аркады, Головоломки, Карточные, Маджонг, Настольные, Пазлы, Развивающие, Симуляторы, Спортивные, Шутеры. Теперь вы на долго обеспечите себя и всю семью приятным отдыхом за домашним компьютером!

Сборник Домашний компьютер. 900 игр включает последние версии наиболее популярных и получивших хорошие отзывы пользователей бесплатных игровых программ. При этом бесплатные программы по своим возможностям зачастую не уступают коммерческим аналогам.
На диске представлено свыше 900 игр, распределенных для удобства пользователя по следующим разделам Аркады, Головоломки, Карточные, Маджонг, Настольные, Пазлы, Развивающие, Симуляторы, Спортивные, Шутеры. Все игры снабжены скриншотами и описаниями, а также гиперссылками на сайт разработчика, что в будущем упростит поиск обновлений представленных игровых программ.
Диск оснащен тщательно разработанной графической оболочкой с возможностью поиска по фрагменту названия игры во всех категориях. Интуитивно понятный интерфейс делает работу со сборником максимально удобной для пользователя.

The team explore one of the biggest stories in space news, the 'city killer' asteroid 2024 YR4. First observed on 27 December 2024, it soon became one of the biggest threats from an asteroid ever detected, with the potential to cause a heat blast that could vaporise solid rock, wind blasts five times the speed of the strongest hurricane and a shockwave that would flatten buildings and trees for hundreds of miles. This was a potential natural disaster we needed to respond to as a planet. So how well did we do? Our team of presenters are on hand to find out, and while YR4 was later downgraded to a near miss, what has it told us about our ability to react when an asteroid strike is on its way?

Veterans of Fleet Command will remember the Neinzul as swarmers who attrited to death. Well, those were just the forward scouts. The Neinzul Abyss will see you fighting with or against their full might. Behold, the true power of the Neinzul! From the Evil Necromancer (that could be you) to the Eldritch Elderlings!

SPACEFILES is a visual compendium of space and astronomy - 26 ten-minute episodes presenting, in a uniquely flexible format, the Solar System, our Galaxy, and the Universe beyond - each programme or “file” offering a crisp, intelligent, picture-driven story.

For those with access to even a modest telescope and CCD camera, this new and improved guide delivers all the information needed to take part in the scientific study of asteroids and variable stars.