SH2-298 NGC2359 Thor's Helmet

Feb 13th, 2026

3 h 35 m

This is not just a gas cloud, but a Wolf-Rayet bubble. At its center lies an extremely hot and massive star (WR 7), which is in the final stage of its evolution. It ejects a colossal amount of material in the form of a powerful "stellar wind," which collides with the surrounding interstellar gas and inflates this glowing bubble. In my case, the target reached a maximum altitude of only 23 degrees. I captured it over two consecutive nights during a brief window when it could be caught between light pollution and thermal convection from nearby houses. The weather allowed me to gather a bit more data on the torus. The colors were challenging, so I made two versions: one with a hydrogen background and one without.

Feb 5th, 2026

1 h 55 m

Had to cram everything onto the flat roof to at least somewhat dampen the convection from neighboring houses—it's painfully low. And a good chunk of the files went in the trash; I only stacked the more or less decent frames. I'll definitely try to get as many again if possible. A nice addition for the Sharpless catalog collection. Sensor temperature -32°C, ASIAIR processor 2.8°C, and outside it was -26°C. Removed a bit of the redness from the background.

Feb 5th, 2026

1 h 55 m

Had to cram everything onto the flat roof to at least somewhat dampen the convection from neighboring houses—it's painfully low. And a good chunk of the files went to the trash; I only stacked the more or less decent frames. I'll definitely try to get as many more if possible. A nice addition for the Sharpless catalog collection. Sensor temperature -32°C, ASIAIR processor 2.8°C. And outside it was -26°C.