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ADHARA

Adhara comes from the Arabic phrase "Al Adhara", and roughly translates as "girls". This is a binary star system consisting of Epsilon Canis Majoris A and the accompanying star Epsilon Canis Majoris B. Here I am writing about the star Epsilon Canis Majoris A. Adhara is the second brightest star in the constellation Canis Majoris and is 430 light-years from Earth. Of course, the brightest star in the constellation Canis Majoris is Sirius. Adhara forms a recognizable constellation shape in the sky. It is a beautiful star that with a magnitude of 1.5 is not difficult to find in the night sky. Approximately 4.7 million years ago, Adhara was only 34 light-years from Earth and with a magnitude of 3.99 was the brightest star in the sky.  

Adhara the brightest star Adhara the brightest star When you look at Canis Majoris, you will see that Adhara together with Sirius and the Furud star form a recognizable triangle. Star is right down below Sirius, and in a way remains in the “shadow” of the majestic Sirius. The surface temperature of the Adhara star is estimated at approximately 23,000 K, and it is much higher than our Sun. In addition, Adhara is the brightest ultraviolet object in the night sky. With total data, Adhara is 38,600 times brighter than the Sun. However, all this is not just in the visible spectrum. Due to the high temperature of the star, a good part of its energy Adhara reflects in the invisible ultraviolet spectrum. And the question arises, is Adhara in the "shadow" of Sirius. If you saw this star with ultraviolet eyes, Adhara would be the brightest star in the sky. An interesting and bright star.  

Adhara position   Join our Facebook group : Learn Astronomy and Astrophotography ... HERE  ADHARA SPACE Learn Astronomy and Astrophotography Read the full article

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EUPHROSYNE

Huge asteroid Euphrosyne is a very large asteroid. With a diameter of about 267 kilometers, this asteroid is larger than 99% of asteroids. It is located in the main part of the asteroid belt, and orbits between Mars and Jupiter. Euphrosyne is not classified as a potential hazard to the Earth. The orbit never approaches Earth. When closest to Earth, Euphrosyne's orbit is 1.58 astronomical units away from Earth's orbit. This means that there is an extremely wide space between this asteroid and the Earth at all times. By tracking this asteroid, no approach to Earth was observed.  

EUPHROSYNE   Distance of Euphrosyne from the Sun Euphrosyne orbits the Sun every 5.61 years. The distance of the asteroid from the Sun is stable. When it is closest to the Sun, it is at a distance of 2.46 astronomical units. When the asteroid is furthest away, it is measured at 3.85 astronomical units. Euphrosyne rotation was observed. It rotates around its axis every 5.50 days. During many years of research, astronomers have come to the following results. This asteroid probably contains nickel, iron, cobalt, water, nitrogen and ammonia. Eufrosine was last officially observed on January 16, 2020. Join our Facebook group : Learn Astronomy and Astrophotography ... HERE Learn Astronomy and Astrophotography Read the full article

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C/2020 T2 (PALOMAR)

C/2020 T2 This is a very beautiful comet and currently a big challenge for astrophotographers. These days you can see C / 2020 T2 in the famous constellation Libra. However, these days you can see a comet from Bosnia and Herzegovina low in the western sky after 8 p.m. Since it was quite high in the sky during the past month, we can now say that the comet is "outgoing". You can see the C/2020 T2 (Palomar) with a minimum of 6 inches with a telescope.

C2020 T2 (Palomar) 02  

C2020 T2 (Palomar) 03   This comet has a relatively large orbital period of approximately 5500 years. That’s a lot less than last year’s famous Neowise comet which has an orbital period of 6750 years. So, we can see the C / 2020 T2 (Palomar) comet again in 5500 years. Currently the comet has a magnitude of 10.4 and can certainly be seen beautifully. During the passage, the comet was closest to the Sun on July 11, 2021 and at a distance of 2.4 astronomical units (AU).  

C2020 T2 (Palomar) 07  

C2020 T2 (Palomar) POSITION   Join our Facebook group : Learn Astronomy and Astrophotography ... HERE   C/2020 T2 (PALOMAR) COMET Learn Astronomy and Astrophotography Read the full article

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C/2020 T2 (PALOMAR)

C/2020 T2 This is a very beautiful comet and currently a big challenge for astrophotographers. These days you can see C / 2020 T2 in the famous constellation Libra. However, these days you can see a comet from Bosnia and Herzegovina low in the western sky after 8 p.m. Since it was quite high in the sky during the past month, we can now say that the comet is "outgoing". You can see the C/2020 T2 (Palomar) with a minimum of 6 inches with a telescope.

C2020 T2 (Palomar) 02  

C2020 T2 (Palomar) 03   This comet has a relatively large orbital period of approximately 5500 years. That’s a lot less than last year’s famous Neowise comet which has an orbital period of 6750 years. So, we can see the C / 2020 T2 (Palomar) comet again in 5500 years. Currently the comet has a magnitude of 10.4 and can certainly be seen beautifully. During the passage, the comet was closest to the Sun on July 11, 2021 and at a distance of 2.4 astronomical units (AU).  

C2020 T2 (Palomar) 07  

C2020 T2 (Palomar) POSITION   Join our Facebook group : Learn Astronomy and Astrophotography ... HERE   C/2020 T2 (PALOMAR) COMET Learn Astronomy and Astrophotography Read the full article

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Soul and Heart Nebula

Two nebulae The Soul Nebula is a large emission nebula located in the constellation Cassiopeia, approximately 6,000 light-years from Earth and has an estimated age of 1 million years. The nebula is the neighbor of IC 1805 - The Heart Nebula and the two deep-sky objects are often mentioned together as the “Soul and Heart”. Soul and Heart Nebula The Heart and Soul Nebulae complex spans an area about 300 light years across and is a vast star-forming region illuminated by the light of the young stars surrounded by star-forming clouds of dust and gas. The two large clouds are separated by only 2.5 degrees and physically connected by a bridge of gas. The stars in the region are less than a few million years old and are only beginning their life. Technical details: Scope: William Optics Zenithstar Z73II + Flat 73A Camera: ZWO Asi 1600mm pro Guiding: Sky Watcher EQ6r Pro, ZWO Asi 224mc, William Optics Uniguide Total integration: 19.5 hours autor: Bogdan Bordeianu   Read the full article

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REGULUS BINARY STAR SYSTEM

Beautiful starry sky In a starry night with clear skies above us, we see beautiful stars dotted with the sky. Many of these stars can be easily recognized. Regulus is one of them. Regulus looks like a single star to the naked eye. However, it is actually a system with two pairs of stars. Regulus is a binary star system consisting of a blue-and-white star and a vague stellar companion that is not directly visible. Therefore, the companion is considered a white dwarf. The mass of a star is 3.8 times the mass of the Sun, and the radius of a star is about three times that of the Sun. The star's temperature, 12460 K, emits 288 times more light than the Sun. The age of the star The star rotates around its axis very quickly. The speed of rotation at the equator is approximately 318km / s. Due to this rapid rotation, the star deforms into a very convex sphere. Therefore, the equatorial diameter is 32% larger than the diameter of the pole. The age of the star is at least a billion years. Regulus is a multi-star system located in Leo. Its distance from Earth is 79.3 light years. With 1.36 apparent magnitude, it is the brightest star in Leo. Although Regulus is the 21st brightest star in the sky, it is the faintest star of the first magnitude. Reguslus - little king The Latin name Regulus means "little king" or "prince". Regulus is also known by the Arabic name Qalb al-Assad and the Latin Cor Leonis. In Europe, this star is called Rex. Read the full article

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COMET C/2020 R4 (Atlas)

COMET C/2020 R4 Last year we witnessed the spectacular passage of the NEOWIS comet, and for a long time we enjoyed the view of the comet coming to us again in approximately 7000 years. Fortunately, many of us have seen it with the naked eye, and many photos have been left in the archives for generations to come. Many comets have different orbital periods, and some appear much more often in our sky. The current comet in our sky is C / 2020 R4 (Atlas), but it also has a long orbital period. The return period of the Comet C/2020 R4 (Atlas) is every 934 years.   When it was discovered This comet was observed in mid-September 2020, and was 1.03 astronomical units away from the Sun. This means that the comet approached the Sun at a distance slightly greater than the distance of the Earth from the Sun. With a current apparent magnitude of 9.5, you can find the comet with binoculars and small telescopes in the constellation Aquila. It can already be found in the sky, but the comet still does not have the strongest glow. This beautiful space object will be best seen on April 15, when its glow will reach +6.3 magnitude. Although it is close to being seen, it will not be seen with the naked eye even then. However, this should not discourage you. All those who have good binoculars or a small telescope - will enjoy the view of the beautiful C / 2020 R4 (Atlas) comet. Join our Facebook group : Learn Astronomy and Astrophotography ... HERE Europe : Read the full article

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Hinds variable nebula

Hinds nebula Variable nebulae are some of the most beautiful objects in deep space. Many think the nebulae are far away. However, at a distance of approximately 400 light-years you can see the beautiful Hinds variable nebula. In addition, this object is located in the direction of the constellation Taurus. John Russell Hind discovered this nebula in September 1852. Therefore, this nebula is called the Hindu variable nebula. Why is it changeable? The variability is due to stellar sources reflected by its light. Therefore, this is a reflection nebula. Herbig Hero Observing this region came to a conclusion. The star T Tauri is responsible for the changing glow of the nebula. This variable star shines from 8.5 to 13 apparent magnitude. The stars shine with different intensity. In conclusion, the Hindi variable nebula also has a variable brightness. Scientists have carefully researched this area and concluded that inside the Hindu nebula is the Herbig Hero object HH155. This is the area where the bright parts of the nebula are associated with newborn stars. After that, the nebula reflects light. Similarly, the iris of the nebula shines. Join our Facebook group : Learn Astronomy and Astrophotography ... HERE Europe : Our recommendation is (click on image):   USA : Our recommendation is (click on image): Equipment for astronomy in Europe. Therefore, go here: Equipment for astronomy in USA. Therefore, go here: Read the full article

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Aquarius is a very interesting constellation

Where is everything seen? Looking at the beautiful starry sky, we immediately notice the constellations in the sky. Famous star contours create constellations that people get to know quickly. However, there are many constellations and people should learn about everyone. Now I am writing about another famous contour in the sky. Beautiful Aquarius. This is an interesting constellation and can be seen from both the southern and northern hemispheres. Of course, it is not visible from both sides at the same time during the year. The constellation is visible in autumn in the northern hemisphere and in spring in the southern hemisphere. Aquarius is zodiac constallation Aquarius is large and it is the tenth largest constellation in the sky. In addition, Aquarius is one of the 13 constellations of the zodiac. This shows that the constellation moves along the path that the Sun moves during the year. As with all constellations, it is difficult to determine the distance from Earth. Logically, the stars are differently distant from our planet. However, if we take the average of the farthest and nearest major stars in the constellation relative to our planet we get the average distance. The farthest main star is at 782 light-years, and the nearest main at 92 light-years. The average distance of the Aquarius constellation is 284 light-years. The nearest and farthest star In addition to the major stars, the nearest star is Ross 780 15 light-years from Earth. Read the full article

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HAMAL - ALPHA ARIETIS STAR

Bright star Hamal is the main star in the constellation Aries and is 66 light-years from Earth. So the light of the star we see started from the star 66 years ago. With 2.0 apparent magnitude, star dominates the Aries constellation. This star is ranked 49th in brightness in the night sky, and is visible to the naked eye. Hamal shines 90 times brighter than our Sun, and is 12 times larger than the Sun. This is an orange-red giant, and the surface temperature of the Hamal star is 4500 K. It is assumed that many planets formed around the star over time. However, one extrasolar planet orbiting the star has been confirmed. But I repeat, the weather ahead of us will probably bring confirmations of a number of planets orbiting the star.   Distance Hamal stars Like everything in space, star is moving and approaching the Earth at a speed of 14.64000 km / s. However, the universe is so large that there is not the slightest fear that a collision will occur soon. If he ever comes. And finally to try to understand the distance of the Hamal star of 66 light years from us. The New Horizons probe is currently moving at a speed of about 55,100 km / h. If it moved in the direction of the Hamal star, it would reach that area in approximately one million three hundred thousand years. And an Airbus A380 with a speed of 1180 km / h, would fly to the star for sixty million years. The universe is huge. Join our Facebook group : Learn Astronomy and Astrophotography ... HERE Europe : Read the full article

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Days of the Sun

Days of the Sun The Rotating Ball of Fire. I imaged the sun for 100 days in a row, from 25th December 2020 to 3rd April 2021. This is an animation of 100 images taken over these days. Like all the planets, the sun also rotates on its axis. But unnlike Earth, sun doesn't have a solid surface, so its rotation is not uniform and rigid. Its rotational speed varies across the latitude: it rotates faster at the equatorial region a nd slower as we move towards the polar regions. Rotation of the Sun Sun's equator takes about 24-25 days for a full rotation whereas it takes around 30-35 days for the polar regions to make a complete rotation. What we are seeing here is almost 4 complete rotation of the Sun (at least in the equator).  Soumyadeep Mukherjee Join our Facebook group : Learn Astronomy and Astrophotography ... HERE Europe : Our recommendation is (click on image):   USA : Our recommendation is (click on image): Equipment for astronomy in Europe. Therefore, go here: Equipment for astronomy in USA. Therefore, go here: days of the Sun SPACE Learn Astronomy and Astrophotography Read the full article

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Jupiters protections for the Earth

Asteroid belt When I recently wrote a text about Jupiter’s protections, you saw in the video how Jupiter affects objects approaching it, but also their orbits. All this is happening under the watchful eye of scientists. However, Jupiters shields don’t just react the way you saw in that video. The asteroid belt between Jupiter and Mars contains millions of moving asteroids. There are objects known to astronomers in that belt, and one of them is the planetoid Ceres. Jupiters protections for the Earth There are theories that there was once a planet in that area that was broken. However, it now floats through that part of the universe like numerous asteroid objects. Many scientists accuse Jupiter of tearing the planet apart by its gravity. No one has yet provided evidence to support the incident. But there is a proven link between Jupiter’s “shields” and internal asteroids moving in the space between Jupiter and Mars. Unfortunately, the video is not of good quality - but it shows nicely what I'm talking about. Learn astronomy and astrophotography. Earth is in danger from asteroids. However, there are Jupiter's shields.     Join our Facebook group : Learn Astronomy and Astrophotography ... HERE Europe : Our recommendation is (click on image):   USA : Our recommendation is (click on image): Equipment for astronomy in Europe. Therefore, go here: Equipment for astronomy in USA. Therefore, go here: Jupiters protections SPACE Learn Astronomy and Astrophotography Read the full article

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Alpheratz is a blue and white star in Andromeda

A bright star Looking at the constellation Andromeda, many of us immediately think of the beautiful galaxy M31. This is the closest galaxy to our solar system. In addition, there are interesting stars to observe. One of them is a binary star named Alpheratz. This star represents the head of the constellation Andromeda. Because of this, Alpheratz is not hard to find. The diameter of the star is approximately 4,692,770 kilometers and the star is 3.37 times larger than the Sun. With an apparent magnitude of 2.07, this star is 97 light-years from Earth. Alpheratz is the 55th brightest star in the night sky. However, it cannot be said that it is also dominantly the brightest star of Andromeda. Mirach has the same 2.07 apparent magnitude. Because of this, from Earth these stars shine with the same intensity and are easy to find. Alpheratz is a binary star Alpheratz is a binary star, but he also appears as one star with the naked eye and a telescope. The two stars are extremely close. Therefore, we see Alpheratz only as one star. These stars orbit every 96 days. But the stars have another companion with an apparent magnitude of 10.8. However, it is 1360 light-years away and is not physically attached to Alpharetz. The dominant star in this system is the blue and white giant. With a rotation speed of 52 km / s, Alpheratz shines 240 times brighter than the Sun. In conclusion, the surface temperature of the Alpheratz star has been calculated to be 15000 K. Read the full article

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Hinode probe in solar exploration

Japanese probe The astronomical results that scientists present are always interesting and exciting. In other words, the universe is becoming more and more familiar to us every day. The development of technology has led to the discovery of planets in other galaxies. However, not all the characteristics of our Sun have been learned yet. The sun is our star, but it still has its secrets. Our star is much observed from Earth. However, the probes do not go to the sun often. One of the most serious projects to test the characteristics of the Sun began on September 22, 2006. It was then that the Japanese Hinode spacecraft was launched. It is located in orbit at an altitude of approximately 680 kilometers. In conclusion, this orbit allows the observation of the Sun continuously throughout the nine months of the year. Hinode probe The mission also began in October 2006. The Hinode probe explores the Sun's magnetic fields. Above all, the probe examines what triggers solar eruptions. In addition, it monitors the movement of the solar atmosphere. There are three basic instruments for observation. These are the solar optical telescope, the extreme ultraviolet spectrometer and the X-ray telescope. Scientists monitored the operation of these devices. The telescopes worked flawlessly. Above all, they met their goals. The magnetic activities of the Sun have been investigated. In addition, they monitored the transmission and release of magnetic energy. Read the full article

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Jupiters shields for Earth

Asteroid belt When I recently wrote a text about Jupiter’s protection, you saw in the video how Jupiter affects objects approaching it, but also their orbits. All this is happening under the watchful eye of scientists. However, Jupiters shields don’t just react the way you saw in that video. The asteroid belt between Jupiter and Mars contains millions of moving asteroids. There are objects known to astronomers in that belt, and one of them is the planetoid Ceres. Jupiters shields are protection for the Earth There are theories that in that area there once existed a planet that was shattered and now floats through that part of the universe like numerous asteroid objects. Some of the scientists even accuse Jupiter of tearing the planet by its gravity. No one has yet provided evidence to support the incident. But there is a proven relationship of Jupiter's "shields" to the inner asteroids moving in the space between Jupiter and Mars. Unfortunately, the video is not of good quality - but it nicely shows what I'm talking about. Learn Astronomy and Astrophotography.     Join our Facebook group : Learn Astronomy and Astrophotography ... HERE Europe : Our recommendation is (click on image):   USA : Our recommendation is (click on image): Equipment for astronomy in Europe. Therefore, go here: Equipment for astronomy in USA. Therefore, go here: Jupiters shields SPACE Learn Astronomy and Astrophotography Read the full article

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Apus is a small constellation in the southern hemisphere

Little Apus We can find several small constellations in the southern hemisphere. Not much is known about them, but they have their beauty. This is one small constellation located relatively close to the South Pole. Therefore, Apus is visible from all southern latitudes and covers 206 square degrees of sky. Therefore, Apus is the 67th largest constellation in the starry sky. This constellation is not easy to locate, and it is quite an uninteresting constellation. In addition, Apus contains only two stars that are brighter than 4 magnitudes. Apus does not contain Messier objects, but there are interesting deep sky objects in this region. Bright stars With approximately the same apparent magnitude, Alpha Apodis and Gamma Apodis are the brightest stars in this constellation. However, they are nice to see. The orange giant star Alpha Apodis is located at a distance of 410 light-years, and has an apparent magnitude of 3.83. Second in brightness is the yellow giant Gamma Apodis star. This star is approximately 160 light-years away from Earth with an apparent magnitude of 3.86. The Apus constellation contains several interesting deep sky objects. However, this is not easy to find. The IC4633 spiral galaxy is interesting. This galaxy is surrounded by an unusual nebulous structure. North of the Gamma Apodis star is the NGC 6101 globular cluster. In addition, in the Apus direction you can find the IC 4499 young globular star cluster. Read the full article

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PALLAS

Millions of asteroids All planets in the solar system have fixed orbits in which they move, and at different distances from the Sun. And the planets are arranged in roughly some order. However, there is no "expected" planet in the space between Mars and Jupiter. In that space are millions of asteroids and planetoids orbiting their orbits. There are many theories as to why there is no planet there. Most likely, the planet Jupiter influenced the formation of a new planet in the asteroid belt. But there are many planetoids in the area that are larger than 100 kilometers, and one of them is the dwarf planet Pallas. Diameter of Pallas Pallas is the third largest asteroid in the asteroid belt, just behind Ceres and Vesta. However, not much is known about the asteroid. The diameter of asteroid is approximately 545 kilometers, and it can be compared to Great Britain in size. Although it was discovered in 1802, it remains a great mystery to this day. The orbital period of Pallas is 4.63 years and it is not a potentially dangerous asteroid on Earth. When moving in an orbital orbit, asteroid comes closest to the Sun at 2.14 astronomical units. When it is furthest away, asteroid is at a distance of 3.41 astronomical units from the Sun. Let me remind you - 1 astronomical unit is the distance from the Earth to the Sun, and as you can see - Pallas is not dangerous for the Earth. Read the full article