The term “dwarf planet” was officially introduced in 2006 following the discovery of planets larger than Pluto outside the orbit of Neptune. Since then, numerous celestial bodies in our solar system have been classified as dwarf planets. The idea has sparked considerable debate, particularly in relation to the classification and characteristics of Pluto. At present,…

Today, there is a wide range of telescopes to choose from, but not many are familiar with the concept of a Newtonian reflector – not only is it one of the most popular designs, but it also holds great historical significance. The Newtonian reflector played a crucial role in making some of the most important…

Is it true that the moon does not spin on its axis? This question has been debated by scientists for years, but a universally satisfying answer has yet to be found. Various hypotheses have been proposed and attempts have been made to prove them. Currently, there is still a contentious situation surrounding this issue. The…

Following the successful launch of the Artemis I mission in late 2022, NASA has been preparing for the upcoming Artemis II, III, and IV missions. While the first mission was unmanned, the second mission aimed to orbit the moon with a crew, and the third and fourth missions are planned to land humans on the…

The star Sirius, also known as the Syrian star, is renowned for being the brightest star in the entire night sky. It is often referred to as Alpha the Big Dog as well. This stunning star has a beautiful white hue and boasts a magnitude of -1.46. Situated approximately 8.6 light years away from Earth,…

The question of how many galaxies there are in the universe is a complex one. Historically, astronomers have made attempts to determine the total number of galaxies in existence. However, counting them has proven to be a daunting task. As the numbers reach into the billions, the process becomes time-consuming. Additionally, the limited capabilities of…

While stars can vary in their physical characteristics, there are certain limitations to what is possible. Not every star that can be imagined by humans can actually exist. Stars are cosmic bodies that can only possess a certain amount of mass within certain limits. If the mass of a celestial body is less than 0.02…

Centuries ago, there was a prevailing belief that the Earth occupied the center of the universe, with all other celestial bodies orbiting around it. In today’s world, this notion has been widely discredited, and it is now widely accepted that the Earth revolves around the central star. The Solar System is comprised of all the…

The enigmatic nature of outer space has always captivated the human imagination. Since ancient times, astronomers have sought to unveil the mysteries of the universe and discover the closest star to our own. Through the invention of various instruments, they observed the twinkling lights in the night sky. With modern scientific advancements, we now have…

When reading popular science articles about space and astronomy, you may come across the term “ecliptic” which can be somewhat ambiguous. This term is commonly used by both scientists and astrologers to describe the position of objects in the solar system and the orbits of celestial bodies within the system. But what exactly does “ecliptic”…

The visibility of a star in the sky depends on its stellar magnitude. Stars with a smaller magnitude are more visible to the naked eye. Stars with a magnitude of fifth and sixth can be seen without any visual aids, whereas larger stars require the use of binoculars or a telescope. Register your star in…

The sun serves as the center and life-giver of our solar system. Classified as a yellow dwarf, this star comprises 99.86% of the total mass of our system and exerts the strongest gravitational force over all celestial bodies. Since ancient times, humanity has recognized the vital role of the Sun in sustaining life on Earth,…

1. The dimness of the moon’s ash light is a result of the moon’s motion around the Earth and the Earth’s motion around the Sun, which determine the phases of the Moon. This information can be used to learn how to identify lunar phases and understand the conditions under which they occur. 2. The study…

History of Astronomy In the late 16th century, there was a significant development in the field of astronomy. It involved a clash between two different models of our solar system: the geocentric system proposed by Ptolemy, where the Earth is considered the center of rotation for all celestial bodies, and the heliocentric system introduced by…

The Red Army Air Defense Artillery, also known as 2MW, had not spread by the beginning of the Great Patriotic War. In the pre-war years, there were tankettes and small tanks of pre-war construction in the Soviet tanks of the beginning of the war (01). The Russian Navy had cruisers of the Baltic Fleet, which…

The final countdown: a disaster resembling the Tunguska meteorite blast is imminent The 115th anniversary of the colossal explosion that shook the Podkamennaya Tunguska region in the early 1900s is celebrated on June 30. According to an expert, a similar event could occur in the near future, and humanity is unprepared for it. Andrei Zlobin,…

Our planet is quite solitary from an astronomical standpoint. The Earth possesses merely one natural satellite – the Moon. However, humans actively compensate for this deficiency by creating their own artificial satellites to keep the planet company. What is a satellite, and how many does the Earth have? From an astronomical perspective, a satellite is…

Planets in our solar system come in different sizes and shapes. They range from being extremely large to being relatively small compared to their moons. For instance, Mercury is smaller than Ganymede. Additionally, some planets have a larger diameter at the equator compared to their poles. Let’s explore the diameters of the planets in the…

What is the name for celestial bodies that do not emit their own light? What is the term for celestial bodies that do not emit their own light? Which celestial bodies emit light: stars, planets, satellites, or do all celestial bodies emit light? Do stars, planets, and satellites emit light, or do all celestial bodies…

During June 2022, the best conditions are present for observing Mercury, although this is only possible in the middle of the month. On June 21st, the summer solstice occurs, marking the longest day of the year and the shortest night. As a result, even during the nighttime hours, the Sun does not dip far below…