Elómë 
Analytic, differentiable transit light curves on Apple Silicon.
Elómë computes exoplanet transit light curves exactly and in closed form, with analytic gradients in every parameter. It runs on MLX, in float32 on the Apple-Silicon GPU through fused Metal kernels, or in float64 on the CPU. It models spherical planets with uniform, linear, quadratic, polynomial and hybrid limb darkening, and oblate and ringed planets with the hybrid laws, which keep their light curves elementary. The frontend follows batman.
Elómë (eh-LOH-meh) is Quenya for "star-dimness".
Installation
pip install elome
Elómë needs a Mac with Apple Silicon for its GPU kernels, Python 3.10 or later, MLX and NumPy.
Example
import numpy as np
import elome
params = elome.TransitParams()
params.t0, params.per, params.rp, params.a = 0.0, 3.0, 0.1, 10.0
params.inc, params.ecc, params.w = 88.0, 0.0, 90.0
params.limb_dark, params.u = "quadratic", [0.4, 0.25]
t = np.linspace(-0.1, 0.1, 1000)
flux = elome.TransitModel(params, t).light_curve(params)
Documentation
elome.readthedocs.io: installation, guides for spherical, oblate and ringed planets, fitting with samplers, tutorials and the API reference.
Citation
If Elómë contributes to your research, please cite the Elómë paper (Kipping, in preparation, Journal of Open Source Software). If you use the hybrid limb-darkening laws, oblate or ringed planets, please also cite the hybrid-law papers, also in preparation; see Citing Elómë.
License
MIT; see LICENSE.
1 maintainer
Metadata
1 maintainer
Release files for elome 0.18.8
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | Provenance | |
|---|---|---|---|---|
| elome-0.18.8.tar.gz | 293.2 kB | With provenance | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| elome-0.18.8-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 475.7 kB
Release files / elome-0.18.8.tar.gz
| Download URL | elome-0.18.8.tar.gz |
|---|---|
| Size | 293.2 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
26ac5d7de7bba64e548b99ebee75df9bf29c8907729dc08df992a2019b1ff374
|
|
BLAKE2b-256 checksum How to use checksums |
fbd86cd414fb915c01d6946fbd1f715a52009282fa322e111b2d2669b26defef
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/7.0.0 CPython/3.13.16
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Oct 20, 2026.
Transparency logRelease files / elome-0.18.8-py3-none-any.whl
| Download URL | elome-0.18.8-py3-none-any.whl |
|---|---|
| Size | 182.6 kB |
| Tags | Python 3 |
|
SHA-256 checksum How to use checksums |
df6c230be9c1764ee7479359a69b43dfd08ed9d4b3f9be6f13927eff9a2aaab2
|
|
BLAKE2b-256 checksum How to use checksums |
022de5111aeafba3b23067b15013b07eeaf5c71cdf07f88abc8c702a4c590aa8
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/7.0.0 CPython/3.13.16
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Oct 20, 2026.
Transparency logSecurity for elome 0.18.8
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
Full provenance
All 2 files in this release have been uploaded with provenance metadata.
Attestation for elome-0.18.8.tar.gz
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Oct 20, 2026.
Transparency logA note on package security
PyPI is a repository for distributing packages, not a service for auditing them. While third-party security researchers and our staff do their best to detect and remove malicious packages, PyPI cannot guarantee the quality, security or suitability of any given package.
