COSMO

Stars

Separate stars tool

Splits the image into two layers: the nebula without its stars, and the stars alone.

ExperimentalCOSMOStars, the in-house network of this tool, is experimental and not recommended for finished images: defects remain on some images. The tool can also run with RC-Astro StarXTerminator, from your own licensed installation.

How to use it

The COSMO window, recorded while the settings are moved.
  1. Select the step in the sequence, or add the tool from Tools.
  2. Set it, then press Preview: the step is computed without being applied.
  3. Press Apply to keep the result, or change the settings and preview again.

Settings

Nebula / Stars
The layer shown: the nebula without its stars, or the stars alone.

When to use it

To process the nebula and the stars separately. The stars become a layer of their own, which the other tools can reach.

Image

Works on a linear or a stretched image.

Example

nebula layer image imagenebula layer
M 42, COSMOStars engine (experimental): the nebula layer. Image taken with a Seestar S50 Pro.
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