Python for Astronomy 3: Handling FITS files using Python

We are creating a playlist for "Python for Astronomy". The first two lectures will cover the basics required to code in Python which is essential to understand the rest of the videos in the session.

The Python Notebooks can be download from our GitHub Repository:

This set of video lectures are presented by Pranav Satheesh.

[chitradeepsaha]

This journey has been amazing so far. Thanks for that. And yes, waiting for DS9 tutorials.

[denotypic]

Thank you! I have been digging for a while on what the color bar actually meant (I thought it was ADU) and this answered my question!

[jaideepgadekar]

Thanks for taking this initiative of teaching Astronomy.

[r]

Yeah Ds9 tutorial would be really good, like a really detailed one.

[gabrielcalcada]

How can I add together 4 filters and make a detection image? It would help me a lot.

[rjmorpheus]

Hey, this is good stuff. I’ve been looking for some useful projects like this. Thanks.

Do you know any good papers or textbooks for reference?

[nehasadhu]

Plz give a tutorial on image stacking using python in astrophysics. I need it. Please help me.

[alxx]

How can i merge 2 images where one the image has different heigth?

[Ibrifs]

Can you make a tutorial to install Photutils?

[marcelinovelasquez]

Hey Pranav thanks for the video! I'm having trouble finding this notebook for reference. Can you please post a new link to it?

[mathiasl]

Hey it is a very interesting video, but I have a question, why max value is 540 pixel while you have dark pixel in your image and you work in 32bit ?

[bryanmendoza]

I get this: FileNotFoundError: [Errno 2] No such file or directory: 'frame-u-006073-4-0063.fits'

[frankkoslowski]

Psst. Please don't refer to the file as filename.fits when it is a filename.fits.bz2 file. How you got Jupyter Notebook to accept that error so elegantly in M = fits.open(filename.fits) still puzzles me.

[swatideshmukh]

I have created bkg.background file..median big.. for my fits file .n subtracted it for my original fits file..but getting some negative counts like -6 etc. Same situation observed when used IRAF for bkg sub...is it ok ?? Or something wrong going on.