CoCalc -- AstroPy Units.ipynb

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ubuntu2204

Kernel: Python 3 (system-wide)

In [12]:

! pip install astropy

Out[12]:

Defaulting to user installation because normal site-packages is not writeable
Requirement already satisfied: astropy in /usr/local/lib/python3.10/dist-packages (5.3)
Requirement already satisfied: numpy>=1.21 in ./.local/lib/python3.10/site-packages (from astropy) (1.26.4)
Requirement already satisfied: pyerfa>=2.0 in /usr/lib/python3/dist-packages (from astropy) (2.0.0.1)
Requirement already satisfied: PyYAML>=3.13 in /usr/lib/python3/dist-packages (from astropy) (5.4.1)
Requirement already satisfied: packaging>=19.0 in /usr/local/lib/python3.10/dist-packages (from astropy) (23.2)

[notice] A new release of pip is available: 25.0.1 -> 25.1.1
[notice] To update, run: python3 -m pip install --upgrade pip

In [13]:

from astropy import units as u

In [14]:

distance = 10 * u.parsec
distance_ly = distance.to(u.lyr)
print(f"10 parsecs is {distance_ly:.2f}")

Out[14]:

10 parsecs is 32.62 lyr

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