Joseph Karpinski
josephkarpinski.bsky.social
Joseph Karpinski
@josephkarpinski.bsky.social
A few more screenshots
March 21, 2025 at 2:43 PM
More screenshots
March 21, 2025 at 2:42 PM
March 21, 2025 at 2:40 PM
Stellar Structure Evolution

people.ast.cam.ac.uk/~pettini/Ste...
March 18, 2025 at 10:23 PM
DESI spectra indices and spectra
March 18, 2025 at 9:30 PM
Let’s use the same 500 Python filters to explore the 600,000 stars available in DESI Early Data Release
👨‍💻👨‍💻👨‍💻
March 18, 2025 at 9:29 PM
While we wait patiently for LAMOST DR11 to be publicly available,
let’s use 500 Python filters to explore the 10 million stars available in LAMOST DR10.
👨‍💻👨‍💻👨‍💻
March 18, 2025 at 7:38 PM
Final analysis
March 18, 2025 at 6:45 PM
Let’s test Grok analysis of Python generated
LAMOST DR10 spectra indices
for TYC 55-912-1, a F7 emission line star.
Outstanding!
🤔🤔🤔
March 18, 2025 at 6:45 PM
With the Sloan Digital Sky Survey database back up and running let’s look at galaxy NGC3729

ned.ipac.caltech.edu/byname?objna...

www.legacysurvey.org/viewer/desi-...

skyserver.sdss.org/dr17/VisualT...
March 15, 2025 at 4:23 PM
Summary
March 14, 2025 at 8:04 PM
Grok Ai analysis of a Green Pea galaxy
🤔🤔🤔
March 14, 2025 at 8:03 PM
An interesting case study.
Check out the orbital velocity and mass differences.
Python GIF animation of TESS eclipsing binaries
March 8, 2025 at 8:25 PM
Let’s add data from Gaia DR3 and a “stability assessment”
to our Python GIF animation of TESS eclipsing binaries

github.com/JosephKarpin...

github.com/JosephKarpin...

github.com/JosephKarpin...
March 8, 2025 at 2:14 AM
Hmm, the site for TESS eclipsing binaries at Villanova University appears to be down.

tessebs.villanova.edu

🤔🤔🤔
March 6, 2025 at 6:53 PM
Let’s take a section of lecture notes from
MIT 18.S096 | January IAP 2023 | Undergraduate
Matrix Calculus For Machine Learning And Beyond

and pass them to Grok for an explanation

ocw.mit.edu/courses/18-s...
February 28, 2025 at 2:41 AM
For fun, lets download Sloan Digital Sky Survey APOGEE DR17 data and map the stars of the Jhelum halo stream

www.sdss4.org/dr17/irspec/...
February 26, 2025 at 6:07 PM
Using the Python tabulate function on TESS eclipsing binary lightcurves. Check it out.
February 23, 2025 at 7:45 PM
Converting Jupyter Notebooks (.ipynb files) to other formats

pypi.org/project/nbco...

Also try running the converted .py file under Spyder

pypi.org/project/spyd...
February 10, 2025 at 2:12 PM
Understanding the Lomb–Scargle Periodogram

iopscience.iop.org/article/10.3...
February 8, 2025 at 7:51 PM
First exercise in Python/R coding
February 7, 2025 at 5:39 PM
Running R under Python.

R has some great charting abilities.
Should be fun to explore.
February 7, 2025 at 1:00 AM
Using ASAS-SN Sky Patrol query_result = client.adql_query
lets join the stellar_main and aavsovsx tables where the period is greater than zero, map the results to a Python DataFrame and save to a CSV file.

asas-sn.ifa.hawaii.edu/documentatio...
February 6, 2025 at 5:02 PM