datasets Directory Reference

Files
	airports.h
	all.h
	Includes the header files of all datasets (for convenience).
	astronomy.h
	Includes the header files of all astronomy datasets (for convenience).
	chemical_elements.h
	Contains the dataset from chemical_elements.csv.
	Earth.h
	Contains data of our Earth, e.g. Earth.mass.
	exoplanets.h
	Contains the dataset from exoplanets.csv.
	ISO216.h
	Contains ISO 216: The international standard for paper sizes.
	ISO668.h
	Contains ISO 668: Series 1 freight containers.
	lithium_battery_materials.h
	Contains the dataset from lithium_battery_materials.csv.
	material_properties.h
	Contains the dataset from material_properties.csv.
	monthly_sunspots.h
	Contains the dataset from monthly_sunspots.csv.
	Moon.h
	Contains data of our Moon, e.g. Moon.mass.
	moons.h
	Contains the dataset from moons.csv.
	musical_notes.h
	Contains the dataset from musical_notes.csv.
	physics_particles.h
	Contains the dataset from physics_particles.csv.
	planets.h
	Contains the dataset from planets.csv.

Detailed Description

This folder contains 13 datasets for basic calculations on chemical elements, physics particles, planets, moons, etc. Most of them have been converted from .CSV files (in CSVs subfolder) by the csv2hpp utility.

References

1. chemical_elements.h converted from chemical_elements.csv by csv2hpp which has been downloaded from https://www.kaggle.com/datasets/berkayalan/chemical-periodic-table-elements (Other license).
2. exoplanets.h converted from exoplanets.csv by csv2hpp which has been produced by the NASA Exoplanet Archive: http://exoplanetarchive.ipac.caltech.edu on Mon Jan 12 06:51:06 2026.
3. material_properties.h converted from material_properties.csv by csv2hpp which has been downloaded from https://web.mit.edu/course/3/3.11/www/modules/props.html (MIT license).
4. montly_sunspots.h converted from monthly_sunspots.csv by csv2hpp which has been downloaded from https://www.kaggle.com/datasets/robervalt/sunspots (CC0 Public Domain license).
5. planets.h converted from planets.csv by csv2hpp.
6. moons.h converted from moons.csv by csv2hpp which has been downloaded from https://github.com/devstronomy/nasa-data-scraper (MIT license). See also https://en.wikipedia.org/wiki/List_of_natural_satellites.
7. musical_notes.h converted from musical_notes.csv by csv2hpp which has been extracted from https://www.liutaiomottola.com/formulae/freqtab.htm.
8. csv2hpp utility is available for free at: https://github.com/fleschutz/csv2hpp (CC0-1.0 license)