Milky Way Star Clusters and Gaia: A Review of the Ongoing Revolution Tristan Cantat-Gaudin Max-Planck-Institut für Astronomie, Königstuhl 17, D-69117 Heidelberg, Germany; cantat@mpia.de Abstract: The unprecedented quality of the astrometric measurements obtained with the ESA Gaia spacecraft have initiated a revolution in Milky Way astronomy. The galaxy we live in, called the Milky Way Galaxy, is a barred spiral galaxy composed of at least 100 billion stars. It is approximately 100,000 light years across and about 1000 light years thick. It has a central bulge that is about 10,000 light years in diameter. Our solar system is about a third of the way towards the edge of the Galaxy

The method is quite simple. Take one photo shortly after sunset using a small aperture like f/11 to get substantial depth of field. Then, keep your tripod in the same spot until the Milky Way rises. Take a second photo at your usual astrophotography settings – say, f/1.8 and focused on the stars.

The faraway system, called ceers-2112, was spotted by an international team using the James Webb Space Telescope. Like our home galaxy, the newly discovered ceers-2112 is a barred spiral galaxy
6. MILKY WAY GALAXY If you could travel outside the galaxy and look down on it from above, you’d see that the Milky Way is a barred spiral galaxy measuring about 120,000 light-years across and about 1,000 light-years thick. For the longest time, the Milky Way was thought to have 4 spiral arms, but newer surveys have determined that it actually seems to just have 2 spiral arms, called Scutum
There are about 60 small galaxies within about 1.4 million light-years of the Milky Way. Not all of them are in orbit around our galaxy, but many of them are. Since they lay outside our galactic Our solar system is the rarest kind of four types of planetary system, suggests new research. getty. To us everything seems normal. Our planet, blue and bursting with life, sits in the middle of The star S4716 orbits the supermassive black hole at the heart of the Milky Way, coming as close to it as 9.2 billion miles. An illustration shows a star rapidly orbiting a supermassive black hole.
By Ken Croswell March 23, 2022 at 12:00 pm A new analysis of nearly a quarter million stars puts firm ages on the most momentous pages from our galaxy’s life story. Far grander than most of its
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    • milky way revolution time