Experience the wonders of space with our comprehensive astronomy website. From stunning images captured by telescopes to informative articles on celestial phenomena, join us as we unravel the mysteries of our vast universe.
One of the most mesmerizing sights in our world is the view of the starry sky on a dark, moonless night. Countless stars, shining brightly or faintly, in various colors like red, white, and yellow, adorn the celestial expanse. But what exactly are stars? Let me explain it in a simple way that everyone can…
After contemplating this inquiry, I arrived at the determination that up until the mid-1800s, humanity lacked any concrete knowledge regarding the inner composition of our planet. All notions regarding the subterranean realm were merely unsubstantiated hypotheses or legends. The primary factor contributing to this predicament was the limited technological advancements at that time. Current and…
The sky provides a delightful spectacle not only for hopeless romantics and meticulous scientists. From time to time, every individual enjoys gazing at one of the most breathtaking phenomena of our vast universe – the dazzling stars. Therefore, it is of great interest to discover which celestial bodies possess the highest luminosity. Sirius Undoubtedly, Sirius…
Celestial systems of coordinates are systems of coordinates that are used to describe the location of a celestial object on the celestial sphere. Typically, spherical coordinate systems are used, which describe the position on a given sphere using two angular quantities. In the case where the distances to the celestial objects are known, Cartesian coordinate…
The months of July and August offer excellent opportunities to observe the Sagittarius constellation. With its distinct shape and abundance of captivating celestial objects, Sagittarius is a popular target for both amateur stargazers and professional astronomers. Often likened to a teapot, the Sagittarius constellation is known for its unique appearance. Its square-shaped body resembles the…
If you have the chance to gaze at the pitch-black sky, then you possess an extraordinary collection of stars. Without any equipment, one can observe approximately 2500 stars in the Milky Way, and with the aid of binoculars or a telescope, this number can increase to 5800-8000. However, this accounts for only a fraction of…
Saturn, the sixth planet from the Sun, is known for its impressive atmosphere. With its similar composition and rotational features to Jupiter, it is often referred to as a sister planet. Among all the planets in our solar system, Saturn stands out as the most recognizable. Its most notable feature is its expansive and stunning…
Stellar magnitude, also known as visible stellar magnitude, is a dimensionless numerical value used to describe the brightness of celestial objects, primarily stars, as seen from the observer’s location. It takes into account both the amount of light emitted by the object and its distance from the observer. Stellar magnitude serves as a metric for…
While contemplating whether or not to resume translations on my main blog (the blog with my translations on IT topics can be found here), I recollected one of the most significant discussions on this blog, which centered around the translation of “The Dream of Interstellar Travel Is Fading” (original). This article sparked a lively conversation,…
An atmosphere is a layer of gas that surrounds a celestial body, such as Earth, and is held in place by gravity. It serves several crucial functions, including shielding the planet from harmful ultraviolet radiation emitted by the sun, regulating temperature, and acting as a barrier against meteorites. The unique composition and characteristics of Earth’s…
The Sun’s outermost layers, specifically the atmosphere, are responsible for producing all types of radiation that we detect. The photosphere, which is the deepest and densest layer of the atmosphere, is approximately 200-300 km thick and has a matter density of about 10-5 kg/m3. This density is significantly lower than that of the Earth’s atmosphere,…
While not officially classified as such, there is a compelling argument that the Moon revolves around the Sun rather than the Earth. If we examine the Moon’s path from a Sun-centered perspective, we find that its trajectory is consistently convex. As stated in a Wikipedia article: Unlike most moons in the solar system, the Moon’s…
Hello! If you have any inquiries regarding the International Space Station and its operations, we will make an effort to provide you with answers. If you encounter any difficulties while watching videos on Internet Explorer, we recommend utilizing a more modern browser like Google Chrome or Mozilla to resolve these issues. Today, we will introduce…
Residents of the Northern Hemisphere of the Earth are fortunate – they can determine the north even without a compass or landmarks by knowing how to locate Polaris. Polaris always remains in one part of the sky and points north more accurately than any other instrument, making it a valuable tool for astronomers to navigate…
Upon viewing this instructional video, you will acquire knowledge regarding the Earth’s form and dimensions. You will familiarize yourself with the methodology of triangulation for gauging the length of the meridian arc. Additionally, we will explore the concept of horizontal parallax and angular radius of a celestial object, and discover their utility in ascertaining the…
As we have discussed in previous articles, our solar system is comprised of 8 planets and the planetoid Pluto, which is no longer classified as a planet due to its size. We have already examined Mercury, Venus, Mars, Jupiter, and Saturn in detail, so now we can focus on Uranus. Known as the iconic blue…
At the core of the Solar System lies the magnificent Sun, which reigns as the largest entity. Boasting 99.8% of the solar system’s mass, it dwarfs the Earth with a diameter that is approximately 109 times greater – an astonishing fact that allows for a million Earths to be comfortably accommodated within its fiery embrace….
Authored by Andrei Konstantinov Published on September 19, 2013, at 00:00 On the 12th of September, NASA made a groundbreaking announcement stating that the Voyager 1 space probe, after an incredible 35 years of interstellar travel, has finally exited the boundaries of our solar system. This revelation has left many pondering the mysteries that lie…
As ancient humans lifted their heads and gazed up at the sky, they undoubtedly pondered the nature of the stationary “fireflies” that dotted the celestial expanse. By observing these lights, people began to associate certain natural phenomena, such as the changing of seasons, with celestial events, attributing magical properties to the latter. For instance, in…
Solar System The Earth, just like any other celestial body, is in perpetual motion. Despite our inability to perceive it, the planet is continuously rotating on its axis and orbiting the Sun at an astonishing velocity. We remain oblivious to this motion due to a phenomenon similar to that experienced when traveling in an airplane…