Svenesis Annotate Image

Version 1.0.0 – GPL-3.0-or-later

Annotates plate-solved images with catalog objects, coordinate grids, compass rose, and legend.

Features

• Automatic detection of over 1,500 objects from 7 embedded catalogs (Messier, NGC, IC, Caldwell, Sharpless, Barnard, named stars)
• Color-coded markers scaled to actual object dimensions
• Collision-avoidant label placement
• Coordinate grids, info box, compass rose, and color legends as overlays
• Export as PNG, TIFF, or JPEG (72–300 DPI)
• Adjustable font sizes, marker sizes, and magnitude limits
• Optional SIMBAD database queries for additional objects

Color System by Object Type

• Gold – Galaxies
• Red – Emission nebulae
• Light Red – Reflection nebulae
• Green – Planetary nebulae
• Light Blue – Open clusters
• Orange – Globular clusters
• Magenta – Supernova remnants
• Grey – Dark nebulae

Workflow

Load plate-solved FITS image → configure display parameters → execute annotation (F5) → export result.

Dependencies

numpy, PyQt6, matplotlib, astropy; optional: astroquery