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Johnny Birthman
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✨🇼️🇪️🇱️🇨️🇴️🇲️🇪️ 🇹️🇴️ 🇹️🇭️🇪️ 🇨️🇴️🇲️🇲️🇺️🇳️🇮️🇹️🇾️
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✨🇲️🇦️🇬️🇮️🇨️🇦️🇱️ 🇺️🇳️🇮️🇻️🇪️🇷️🇸️🇪️ - A Mysterious Elliptical Galaxy

This image of the elliptical galaxy NGC 1132 and its surrounding region combines data from the Chandra X-ray Observatory and the Hubble Space Telescope. The blue-purple color of the image is the X-ray glow from hot and diffuse gas detected by Chandra. The Hubble data reveal a giant elliptical galaxy in the foreground, as well as numerous dwarf galaxies in its vicinity, and a background replete with large distant galaxies. What astronomers have christened NGC 1132 is a "fossil group," since it contains a large amount of dark matter, in a quantity comparable to the dark matter found in a whole group of galaxies. In addition, the large amount of hot gas detected by Chandra is usually found in clusters of galaxies, rather than in a single galaxy.

The origin of such systems of groups of fossil remains is a true puzzle. They can be the final phases of the complete fusion of two groups of galaxies. Or, there may be very few objects that were formed in a region or period of time in which the growth of moderately sized galaxies was somehow suppressed, and a large galaxy has formed. Elliptical galaxies are smooth and without the distinctive features that characterize spiral galaxies. These ellipticals contain hundreds of millions to billions of stars, ranging from almost spherical to very elongated. Usually, its yellowish color comes from ..... Click on the image to read the full article.

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✨🇲️🇦️🇬️🇮️🇨️🇦️🇱️ 🇺️🇳️🇮️🇻️🇪️🇷️🇸️🇪️ - M78 and Barnard Loop by Terry Hancock

In this excellent image of Terry Hancock we can see the reflection nebula M78, in the center of the image, accompanied by a portion of Barnard's loop, at the top. Captured from the backyard of my new home in Colorado, this is my first light image using QHY367C, full frame 7376x4938, with the 36.4mega CMOS color camera, says Terry in his Flickr account. M78 is part of Orion's molecular cloud complex, located at a distance of 1,600 light years from Earth, however, Barnard's pink loop is much closer, about 500 light-years. If we see this loop in a wide-field image, we would see a wide arc in which the Orion Nebula M42 and the Horsehead Nebula are embedded, among others.

M78 is the most brilliant diffuse reflection nebula in a group of nebulae that includes NGC 2064, NGC 2067 and NGC 2071. M78 is easily visible with small-range telescopes as a diffuse spot, and includes two stars of magnitude 10. These two stars ..... Click on the image to read the full article.

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✨🇺️🇳️🇮️🇻️🇪️🇷️🇸️🇴️ 🇲️🇦️🇬️🇮️🇨️🇴️ - REVIEW
✨La galaxia anular AM 0644-741 desde el Hubble
✨The annular galaxy AM 0644-741 from Hubble

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✨🇲️🇦️🇬️🇮️🇨️🇦️🇱️ 🇺️🇳️🇮️🇻️🇪️🇷️🇸️🇪️ - The Flame Nebula by Robert Gendler

Although the bright light of Alnitak (Zeta Orionis) dominates the image and threatens to overwhelm the flame nebula, however, they are not physically related. NGC 2024 is an HII region, an ampoule on the surface of the complex molecular cloud of Orion B that is at a distance of 1500 light years from Earth. Alnitak on the other hand is in the foreground at a distance of 815 light years. The dusty bifurcated structure of the flame nebula is mainly opaque for optical telescopes. But infrared telescopes (2MASS) have penetrated the dusty veil examined the invisible structure within the Flame. Behind the thick dark strip that divides the two halves of the flame is a rich array of new stars less than 1 million years old. Young stars are accessible only at infrared wavelengths. At least half of the stars are known to have circumstellar accretion discs, possibly the precursors of Earth-like planets. Recent works have identified a massive star in the center, which will be type O sooner or later or type B (IRS2b) that acts as the only source of ionization of the flame nebula.

Alnitak (Zeta Orionis) the most eastern star of Orion stars belts is a remarkable tertiary star system in its own right. Alnitak A, the dominant element of the binary star system, is a hot blue supergiant, and is the brightest type O star in the sky. Visually its luminosity is 10,000 times greater than that of our Sun, however, its surface temperature of 31,000 degrees Kelvin causes that radiates above all the ultraviolet light that the eye can not see. Taking the UV emission into account, Alnitak A is ..... Click on the image to read the full article.

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✨🇲️🇦️🇬️🇮️🇨️🇦️🇱️ 🇺️🇳️🇮️🇻️🇪️🇷️🇸️🇪️ - Surprise clouds surrounding giant stars

This new image of the VLT Tracking Telescope (VST), located at ESO's Paranal Observatory, shows the remarkable stellar supercluster Westerlund 1. This exceptionally bright cluster is about 16,000 light years from Earth in the southern constellation of El Altar . It contains hundreds of very massive and bright stars, all of which are only a few million years old, are baby stars by stellar standards. But our vision of this group is hampered by gas and dust that prevents most visible light from the star cluster arriving on Earth. Now astronomers studying the images of Westerlund 1 have a new study of the southern skies, and have discovered something unexpected in this cluster. Around one of the stars, known as W26, a red supergiant and possibly the largest known star, have been discovered clouds of glowing hydrogen gas, shown in the image in green. These types of clouds glowing around massive stars are very rare, and are even rarer around a red supergiant. This is the first ionized nebula discovered around a star of this type.

W26 would be too cold to make the glow of the gas shine. Astronomers speculate that the source of ionizing radiation may be any of the hot blue stars elsewhere in the cluster, or possibly a weaker, but much hotter companion star of W26. W26 will eventually burst like a supernova. The nebula that surrounds it is very similar to ..... Click on the image to read the full article.
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