This review provides useful background and information on how we find, vet and compile Planetary Nebulae (PNe) candidates and verify them. It presents a summary of the known Galactic PNe population and their curation in the Hong Kong/AAO/Strasbourg/H伪 PNe catalogue, "HASH...
Therefore, these spiral nebulae were indeed other galaxies outside our own. There are still many mysteries surrounding galaxy formation, but on the next page we'll explain some of the best theories about it. Light-years Away Galaxies are far apart. The Andromeda galaxy, which is also ...
How far is Canis Major from the Big Dipper? How far is the Polaris star from Earth? How far away is spiral planetary nebula? How far away is the star Vega? How far away can the Hubble Telescope see? How far away is VY Canis Majoris?
For farther stars, other methods involving luminosity are used. Globular Clusters and Spiral Nebulae Around the time that Kapteyn published his model of the Milky Way, his colleague Harlow Shapely noticed that a type of star cluster called a globular cluster had a unique distribution in the sky...
French astronomerCharles Messier(1730–1817) composed a database of objects known at the time as "nebulae," which included 103 objects at its final publication, though additional objects were added based on his personal notes. Many of these objects are often listed with their catalog name, such...
Some nebulae, such as the Horsehead, are a real challenge to find and observe. Nebulae are best viewed under low magnification, and rich-field telescopes can provide good views. Large aperture telescopes can gather enough light to produce bright images, and light pollution filters may help you ...
French astronomerCharles Messier(1730–1817) composed a database of objects known at the time as "nebulae," which included 103 objects at its final publication, though additional objects were added based on his personal notes. Many of these objects are often listed with their catalog name, such...
Could our Sun end its life looking like the planetary nebula NGC 678? Astronomers suspect that it may well do so. ESO High-mass stars, however, are different from the Sun in many ways. They live short lives and leave behind gorgeous remains. When they will explode as supernovae, they...
Our sun will never go supernova because it simply isn't big enough. It would need to be about ten times more massive to collapse with such force. The life cycle of a star depends on its size, and the ultimate fate of a star the same mass as our sun is to essentially burn out. ...
Deep Sky Imaging (Galaxies, Nebulae, Star Clusters) Planetary Imaging Solar Imaging Detailed Moon Surface Imaging A DSLR camera attached to a telescope for prime focus astrophotography. Astrophotography covers a wide variety of styles and photography subjects. The type of image you’re after is up ...