GNU Astronomy Utilities - Tasks: task #15780, Query imaging databases
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task #15780: Query imaging databases
Submitter: | Mohammad Akhlaghi <makhlaghi> | ||
Submitted: | Sun 27 Sep 2020 10:32:06 PM UTC | ||
Should Start On: | Sat 26 Sep 2020 11:00:00 PM UTC | Should be Finished on: | Sat 26 Sep 2020 11:00:00 PM UTC |
Category: | Query | Priority: | 5 - Normal |
Item Group: | Enhancement | Status: | None |
Privacy: | Public | Percent Complete: | 0% |
Assigned to: | None | Open/Closed: | Open |
Effort: | 0.00 |
Sat 03 Apr 2021 12:21:44 AM UTC, comment #1: |
Mohammad Akhlaghi <makhlaghi>![]() |
Sun 27 Sep 2020 10:32:06 PM UTC, original submission:
The SDSS imaging database can be queried for the images covering a certain area at https://dr12.sdss.org/mosaics .
Once you fill the form, the full list of images that cover the desired area is available in a shell script that can be downloaded from a URL like this:
In this link, I have asked for a region that is centered on M51 (202.469583333, 47.1952777778), within a square box of size 0.2x0.2 degrees, asking for the native pixel scale (0.396 arcsec/pixel), for the 'g', 'r' and 'i' band images.
From the given shell script, we can extract the URLs and use cURL to download the images. Ideally, we can also uncompress them (either by directly calling 'bz2', or using its library). |
Mohammad Akhlaghi <makhlaghi>![]() |
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Follows 1 latest change.
Date | Changed by | Updated Field | Previous Value | => | Replaced by |
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2021-04-03 | makhlaghi | Summary | Query from SDSS imaging database | ![]() |
Query imaging databases |
Javier Moldon also proposed NASA's SkyView at https://skyview.gsfc.nasa.gov/current/cgi/query.pl