@renerpho
Account based inGermany!
About this account
- Account based in
- Germany
- Connected via
- Web
X says this location may be affected by a proxy or VPN.
Account-level information from X, not a live location or the device used for a specific post.
Space fan. Nerd. Genealogist. All maths and history. Asteroid 128345. @NBObservatories
Marburg, Deutschland
Joined July 2015
- Tweets2.5K
- Following139
- Followers553
- Likes4.5K
I am proud to announce that @NBObservatories have been awarded a 2025 Shoemaker NEO Grant by The Planetary Society! 🎉🔭🌠
planetary.org/articles/2025-…
Daniel Bamberger retweeted
In exactly 10 minutes, Asteroid 46925 Bradyharan will cross the ecliptic plane, plunging from the north to the south of our huge planetary disc.
This extreme north/south nature is a reason the rock was picked for me - 🇬🇧🇦🇺 - and coincidentally it's currently visible in my constellation of Gemini!? 🤪
youtube.com/playlist?list=PL…
To my knowledge, yesterday's naming of (429733) Gilbertbaker, a large Amor-type Near Earth asteroid, marks the first -- even indirect -- representation of the LGBTQ community in space.
wgsbn-iau.org/files/Bulletin…
ALT (429733) Gilbertbaker = 2011 LX10 Discovery: 2011-06-06 / CSS / Catalina / 703 Gilbert Baker (1951–2017) was an American artist, civil rights advocate, and flag designer. In 1978, he created the rainbow flag, which became an internationally-recognized symbol of sexual diversity.
ALT Orbit of newly named asteroid (429733) Gilbertbaker. Image credit: CSS, D. Rankin
A friend took some images of "my" asteroid (128345) Danielbamberger in February, and sent me the raw data today. I turned it into a little animation. It's been a while since I've seen that rock!
Visible here at 21.3 mag. Images taken at Deep Random Survey, Chile (X09).
@BradyHaran These were taken immediately after we had finished imaging (46925) Bradyharan that night.
Asteroid (46925) 1998 SS27 has just been named after @BradyHaran, the host of YouTube channels like "Numberphile", "Periodic Videos", and "Objectivity".
Naming it was my idea, and I am very grateful to David Rankin at the Catalina Sky Survey for helping me with it!
A thread. 1/7
There is this puzzle to approximate the number e with a "pan-digital formula", in which each of the digits from 1-9 is used exactly once. The best known solution (Sabey, 2004), covered by @numberphile in 2016, is correct to 18 trillion trillion digits. I just found a better one!
As an extra benefit, it also works as a pan-digital formula with the digits from 0 to 9, if you prefer to write the decimal number .2 as 0.2. This was one of the criticisms/questions from the 2016 Numberphile video. youtube.com/watch?v=xgBGibfL…
My solution starts from Richard Sabey's, and is similar to his in many ways. I just tried to increase the base of the expontial tower from 3 to 5, leaving the rest intact if possible. Turned out that works!
The Numberphile video: youtube.com/watch?v=xgBGibfL…
Erich Friedman's puzzle website (just updated with my new solution): erich-friedman.github.io/mat…
More about approximations of e, from MathWorld: mathworld.wolfram.com/eAppro…
An explanation how I found it: math.stackexchange.com/quest…