VST image of the star-forming region Messier 17
Acknowledgement: OmegaCen/Astro-WISE/Kapteyn Institute
Credit: Brian Drourr
Sky watcher Brian Drourr sent in his composite image of star trails and an auroral display seen over northern Vermont. He says he captured the aurora and 200+ stacked images of the star trails “this past summer” at Sand Bar State Park in northern VT. — Tom Chao
When stars form, pandemonium reigns.
A particularly colorful case is the star forming region Simeis 188 which houses an unusual and bright cloud arc cataloged as NGC 6559. Visible above are red glowing emission nebulas of hydrogen, blue reflection nebulas of dust, dark absorption nebulas of dust, and the stars that formed from them.
The first massive stars formed from the dense gas will emit energetic light and winds that erode, fragment, and sculpt their birthplace. And then they explode. The resulting morass can be as beautiful as it is complex.
After tens of millions of years, the dust boils away, the gas gets swept away, and all that is left is a naked open cluster of stars. Simeis 188 is located about 4,000 light years away and can be found about one degree northeast of M8, the Lagoon Nebula.
On the 40th anniversary of the famous ‘Blue Marble’ photograph taken of Earth from space, Planetary Collective presents a short film documenting astronauts’ life-changing stories of seeing the Earth from the outside – a perspective-altering experience often described as the Overview Effect.
Messier 7 and Barnard 287 taken in Réunion island with an Epsilon Takahashi 8” f/d=3 and EOS 7D baader at 800 iso. — Jérôme ASTREOUD