https://en.wikipedia.org/wiki/WR_140#cite_note-aa2022-11 WR140.png WR Period (P)7.9241 yr Semi-major axis (a)8.30 Eccentricity (e)0.9012 Inclination (i)119.4 Mass8.4 M☉ Luminosity537,000 L☉ Temperature70,000 K O Mass20.5 M☉ Radius35 R☉ Luminosity1,600,000 L☉ Temperature35,000 K https://arxiv.org/abs/2210.06452 Nested Dust Shells around the Wolf-Rayet Binary WR 140 observed with JWST The carbon-rich WR (WC) binary WR~140 presents an ideal astrophysical laboratory for investigating these questions given its well-defined orbital period and predictable dust-formation episodes every 7.93 ye ..read more

Didymos looks similar to Bennu if you ask me. Very cool that we finally got to see an asteroid moon up close ..read more

EarthMoon wrote: I made a countdown that will count until the last second before the impact: https://earthmoon.glitch.me/space/specials/dart-impact-countdown/. This puts the impact at 05:14:20 UTC on September 27, 8 hours later than the actual time. Added 26.09.2022, 23:36: Impact has now happened (~20 minutes ago, even though EarthMoon's countdown says there are about 7.5 hours left...) NASA article with image, in case you missed it ..read more

Tonight NASA's Double Asteroid Redirection Test impacts on the moon Dimorphos of the asteroid Didymos. The goal: Change Dimorphos' orbital period by 10 minutes. I made a countdown that will count until the last second before the impact: https://earthmoon.glitch.me/space/specials/dart-impact-countdown/. NASA mission trailer: https://www.youtube.com/watch?v=nHBuVbGkmBY NASA official live stream: https://www.youtube.com/watch?v=21X5lGlDOfg NASA DART live stream: https://www.youtube.com/watch?v=-6Z1E0mW2ag ..read more

SevenSpheres wrote: EarthMoon wrote: I made a countdown that will count until the last second before the impact: https://earthmoon.glitch.me/space/specials/dart-impact-countdown/. This puts the impact at 05:14:20 UTC on September 27, 8 hours later than the actual time. Added after 4 hours 36 minutes: Impact has now happened (~20 minutes ago, even though EarthMoon's countdown says there are about 7.5 hours left...) NASA article with image, in case you missed it. The countdown worked correctly for me. Maybe it's just the time zone difference ..read more

Is there a Celestia add-on containing the SDSS-IV data? https://www.sdss.org/dr17 Selden has the 2017 release here: https://www.classe.cornell.edu/~seb/celestia/catalogs.html#3.5.12 ..read more

Anthony_B_Russo10 wrote: And for the images: a tool that compares the Webb images to images to the Hubble images of the same objects: https://johnedchristensen.github.io/WebbCompare/ stacked together the JWST and hubble images of the quintet from that tool in gimp its such eye-candy, best time to be alive right now for space exploration unknown.png its just truly remarkable at what JWST can do, it can spot Thebe, Metis, jupiter's rings, and even this little young galaxy (from deep field image) Untitled.png ..read more

And for the images: a tool that compares the Webb images to images to the Hubble images of the same objects: https://johnedchristensen.github.io/WebbCompare/ Edit: The first image is not aligned perfectly ..read more

WASP-96b spectrum: WASP-96b.png NGC 3132 / Southern Ring Nebula / Eight-Burst Nebula in near- and mid-infrared: NGC 3132.png Stephan's Quintet: Stephan's Quintet.png Part of the Carina Nebula: Carina Nebula.png All images can be found here: https://webbtelescope.org/resource-gallery/images There are some more pictures in this pdf, including infrared Jupiter ..read more

The first (non-calibration) image from the James Webb Space Telescope has been released, showing the galaxy cluster SMACS 0723. https://www.nasa.gov/webbfirstimages SMACS 0723.png Additional images will be released in under 24 hours ..read more