Joseph R Farah
@drjrfarah.bsky.social
Astrophysicist, artist, 1/4-mile drag racer.
🧪We published a paper exploring the ability of a black hole's photon ring to measure how fast the BH is spinning, using the kinds of images we hope to make with BHEX. One cool result was tools (e.g., below) to measure the geometry of the PR. Read our study here: iopscience.iop.org/article/10.3...
April 20, 2025 at 9:46 PM
🧪We published a paper exploring the ability of a black hole's photon ring to measure how fast the BH is spinning, using the kinds of images we hope to make with BHEX. One cool result was tools (e.g., below) to measure the geometry of the PR. Read our study here: iopscience.iop.org/article/10.3...
🧪My friend David and I are astrophysicists. He's at the CTI Observatory in Chile right now, and we made this walkaround of the telescopes and crazy views! David worked there for many yrs so he knows all the equipment/science very well. Video: www.youtube.com/watch?v=7km9... and sneak peek below!
December 26, 2024 at 4:16 PM
🧪My friend David and I are astrophysicists. He's at the CTI Observatory in Chile right now, and we made this walkaround of the telescopes and crazy views! David worked there for many yrs so he knows all the equipment/science very well. Video: www.youtube.com/watch?v=7km9... and sneak peek below!
🧪What's a day on Mars like? Beats me--but here's 90 minutes of the Mars day! I made this hyperlapse with the 6SE + ZWO ASI224MC + Celestron 2x Barlow + IR cut filter, 40,000 frames per image over 120s, top 1% stacked, each frame 5-10 min apart. #mars #space #timelapse #planet #solarsystem
December 24, 2024 at 12:02 AM
🧪What's a day on Mars like? Beats me--but here's 90 minutes of the Mars day! I made this hyperlapse with the 6SE + ZWO ASI224MC + Celestron 2x Barlow + IR cut filter, 40,000 frames per image over 120s, top 1% stacked, each frame 5-10 min apart. #mars #space #timelapse #planet #solarsystem