Mission & Philosophy
Historically, transient astronomy suffered from severe data fragmentation. Light curves, spectra, and metadata were scattered across hundreds of research journals, private institutional websites, survey archives, and IAU circulars. sne.space was built to solve that fragmentation by aggregating publicly available data into one place.
sne.space is an independently operated supernova & transient catalog, maintained by the sne.space project (contact: hsbakhtar202@gmail.com). It unites publicly available supernova data into a unified, extensible schema and delivers open-access astrophysics to human researchers and autonomous AI agents alike. It is not affiliated with, endorsed by, or a continuation of any prior catalog or institution.
Core Architecture
Unified AstroCats Schema
Every transient is serialized in a rigorous, schema-validated JSON format tracking multi-band photometry, spectroscopy, multiple claimed types, host galaxies, coordinates, and exact provenance citations.
JSON Schema v1.0Automated Alert Ingestion
Automated pipelines cross-correlate alerts from the IAU Transient Name Server (TNS), Zwicky Transient Facility (ZTF), ATLAS, Pan-STARRS, ASAS-SN, Gaia, and WISeREP, resolving naming conflicts and deduplicating events.
Multi-Survey HarvesterAI Agent Native (MCP & WebMCP)
First-class integration for autonomous LLMs and research agents. Exposes standard Model Context Protocol (MCP) JSON-RPC 2.0 endpoints, in-browser WebMCP declarative forms, and ARD discovery manifests.
W3C / FastMCPHistorical Milestones
Published in The Astrophysical Journal (ApJ 835, 64) establishing the open-data standard for transient astronomy and indexing the first 35,000+ objects.
Catalog expands past 80,000 events powered by high-cadence robotic synoptic sky surveys including ZTF, ATLAS, and Pan-STARRS.
Launch of the modern high-concurrency sne.space architecture: Sub-millisecond IVOA 3D Cartesian cone search, interactive Canvas/WebGL light curve plots, Aladin Lite v3 sky viewers, and dual FastMCP / WebMCP agent tools.
Data Provenance & Attribution
sne.space is independently operated and is not affiliated with or endorsed by any prior project. Some historical records reference the publication below as the original source of that data; it is shown here for attribution only and does not imply any affiliation with sne.space. Please cite the primary discovery and data sources listed on each event page:
@ARTICLE{2017ApJ...835...64G,
author = {{Guillochon}, James and {Parrent}, Jerod and {Kelley}, Luke Zoltan and
{Margutti}, Raffaella and {Nicholl}, Matt and {Villar}, V. Ashley and
{Artale}, Maria Celeste and {Blanchard}, Peter K. and {Bostroem}, K. Azalee and
{Challis}, Peter and {Chornock}, Ryan and {Czekala}, Ian and
{Fox}, Ori D. and {Garnavich}, Peter M. and {Graham}, Melissa L. and
{Hiramatsu}, Daichi and {Kirshner}, Robert P. and {Milisavljevic}, Dan and
{Rest}, Armin and {Veras}, Dimitri and {Berger}, Edo},
title = "{An Open Catalog for Supernova Data}",
journal = {\apj},
keywords = {catalogs, supernovae: general},
year = 2017,
month = feb,
volume = {835},
number = {1},
eid = {64},
pages = {64},
doi = {10.3847/1538-4357/835/1/64},
adsurl = {https://ui.adsabs.harvard.edu/abs/2017ApJ...835...64G},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
Ecosystem & Repositories
GitHub Source Code
Explore the complete source code behind the sne.space server, AstroCats data model, and ingestion harvesters on GitHub.
github.com/astrocatalogs/astrocats →Developer APIs
Read the official API documentation for single-event endpoints, bulk downloads, IVOA cone searches, and MCP client setups.
Browse API & Docs →Frequently Asked Questions
Detailed explanations regarding cosmological distance derivations, apparent magnitudes, spectral classification, and data formats.
Explore FAQs →