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Back to General Tasks index
Go to the SQL Search page (link opens in new
window). From the astronomers' main page, look under Search Tools. From the public main page, look
under SkyServer Tools, then Search. In the large textbox, type the following SQL query:
| SELECT u, g, r, i, z |
| FROM Galaxy |
| WHERE htmid*37 & 0x000000000000FFFF < (650 * 1) |
The query will return a 1% subset of the data. To return a different percentage subset of the data,
change the final 1 to a different number (for example, for a random 0.5% subset of the data, change it to 0.5). The query will return the magnitudes of a 1% subset of the data. You can also return other data, such as
positions and object IDs.
The form below will let you run this query. Click Submit to run the query. Click Reset to clear
the textbox. The full query will take a while to run, but it should start showing results immediately.
If you're interested, the query finds the random points by using SkyServer's
Hierarchical Triangular Mesh,
multiplied by a prime number.
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