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Features
Free
Plus
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Enjoy a completely ad-free experience in both Free and Plus versions
Full Sky Catalog
132,000+ objects — stars, DSOs, comets, asteroids, meteor showers, 88 constellations
AR Camera Overlay
Point your camera at the sky to see objects in real-time
Deep Link Sharing
Share any star, DSO, planet, or minor body
Sky Cultures
24 cultural constellation traditions with art overlays
Limited
Full Access (24)
Advanced Star Data
Spectral type, absolute magnitude, luminosity, radial velocity, proper motion
Advanced DSO Data
Hubble type, distance (Mpc/Mly), redshift, surface brightness, cross-references
H-R Diagram & Altitude Charts
Interactive Hertzsprung–Russell diagram + 24-hour altitude curve per object
Proper Motion Vectors
Live canvas arrows showing stellar drift for high-PM stars
Advanced Search & Subcategories
- HD/HR catalog number lookup
- Supergiants, White Dwarfs, High PM stars
- Best DSO Targets, Spiral & Elliptical Galaxies
Limited
Full Access
Future Features
- More sky cultures
- Additional minor body catalogs
- Extended astronomical features
Limited
Full Access