Welcome!

The Orion Nebula Cluster Database is a cross-matched and curated collection of
astrometry, photometry, spectra, and image data for 11633 sources in the ONC.

The catalogs currently included are:

Use the forms below to browse though tables, query the database, or see the full inventory of a particular source.
Then plot the results, click through interactive sky maps, or generate spectral energy distributions and caluclate fundamental parameters.

Browse the Database

Take a look at 100 random records in the selected table.

Search the Database

Check Inventory

SQL Query

Write your own SQL query in the box below! Check the database schema for column and table names.

Not familiar with SQL queries? Here are some examples:

SELECT shortname, ra, dec FROM sources WHERE (ra BETWEEN 83.64 AND 83.66) AND (dec BETWEEN -5.33 AND -5.32)
SELECT band, magnitude, magnitude_unc FROM photometry WHERE source_id=4
SELECT source_id, band, magnitude FROM photometry WHERE band='ACS_HRC.F435W' AND magnitude>26
SELECT t.name, p.band, p.magnitude, p.magnitude_unc FROM telescopes AS t JOIN photometry AS p ON p.telescope_id=t.id WHERE p.source_id=4
SELECT p1.source_id,p1.ra,p1.dec,p1.magnitude-p2.magnitude as color FROM photometry AS p1 JOIN photometry AS p2 ON p1.source_id=p2.source_id WHERE p1.band='ACS_HRC.F555W' AND p2.band='ACS_HRC.F850LP' AND color BETWEEN 4.5 AND 4.505