juliensimon/nasa-exoplanets

NASA Exoplanet Archive

Part of the Astronomy Datasets collection on Hugging Face.

All confirmed exoplanets from the NASA Exoplanet Archive, with orbital parameters, stellar properties, and discovery metadata. Currently 6,153 confirmed planets.

Dataset description

The NASA Exoplanet Archive is the authoritative database of confirmed exoplanets, maintained by Caltech/IPAC under contract with NASA. Each entry represents a confirmed planet with its best-available physical and orbital parameters, host star properties, and discovery information. This dataset uses the Planetary Systems (ps) table with default_flag=1 to select one row per planet with the default parameter set.

Schema

Column	Type	Description
pl_name	string	Planet name (e.g. "Kepler-22 b", "TRAPPIST-1 e")
hostname	string	Host star name
discoverymethod	string	Discovery method (Transit, Radial Velocity, etc.)
disc_year	Int64	Year of discovery
disc_facility	string	Discovery facility name
pl_orbper	float	Orbital period in days
pl_rade	float	Planet radius in Earth radii
pl_bmasse	float	Planet mass in Earth masses
pl_eqt	float	Equilibrium temperature in K
pl_orbsmax	float	Semi-major axis in AU
pl_orbeccen	float	Orbital eccentricity
st_teff	float	Stellar effective temperature in K
st_rad	float	Stellar radius in solar radii
st_mass	float	Stellar mass in solar masses
sy_dist	float	Distance in parsecs
sy_vmag	float	V-band magnitude
ra	float	Right ascension in degrees
dec	float	Declination in degrees
rowupdate	string	Date of last row update

Quick stats

• 6,153 confirmed exoplanets
• Most recent discovery: HD 100508 b (2026)

By discovery method

Method	Count
Transit	4,520
Radial Velocity	1,182
Microlensing	275
Imaging	94
Transit Timing Variations	39
Eclipse Timing Variations	17
Orbital Brightness Modulation	9
Pulsar Timing	8

Recent discoveries by year

Year	Count
2026	66
2025	243
2024	259
2023	324
2022	369
2021	564
2020	234
2019	196
2018	315
2017	152

Usage

from datasets import load_dataset

ds = load_dataset("juliensimon/nasa-exoplanets", split="train")
df = ds.to_pandas()

# Earth-like candidates: rocky, in habitable zone
habitable = df[
    (df["pl_rade"] < 1.6) &
    (df["pl_eqt"] > 200) & (df["pl_eqt"] < 310)
]
print(f"{len(habitable)} potentially habitable planets")

# Transit vs radial velocity discoveries over time
transit = df[df["discoverymethod"] == "Transit"]
rv = df[df["discoverymethod"] == "Radial Velocity"]

# Planets by discovery facility
top_facilities = df["disc_facility"].value_counts().head(10)

Data source

All data comes from the NASA Exoplanet Archive, maintained by Caltech/IPAC under contract with NASA. Data is queried via the TAP API using the Planetary Systems table.

Update schedule

Weekly on Monday at 16:00 UTC via GitHub Actions.

Related datasets

• space-track-satcat — NORAD Satellite Catalog
• space-launch-log — Global launch history from GCAT

Pipeline

Source code: juliensimon/space-datasets

Support

If you find this dataset useful, please give it a ❤️ on the dataset page and share feedback in the Community tab! Also consider giving a ⭐️ to the space-datasets repo.

Citation

@dataset{nasa_exoplanets,
  author = {Simon, Julien},
  title = {NASA Exoplanet Archive},
  year = {2026},
  publisher = {Hugging Face},
  url = {https://huggingface.co/datasets/juliensimon/nasa-exoplanets},
  note = {Based on data from the NASA Exoplanet Archive, operated by Caltech/IPAC}
}

License

CC-BY-4.0