telescope
Astro-Tech
AT12RC
305mm Truss Ritchey-Chrétien · 2432mm f/8.0
Large truss RC.
Best for
- Small galaxies, planetary nebulae, lunar & planetary detail
- High-resolution long-exposure work
- Faint-object imaging under dark skies
- Full-frame astro cameras and DSLRs
Specifications
| Optics | |
| Type | ritchey-chretien |
| Optical design | Truss Ritchey-Chrétien |
| Aperture | 305mm |
| Focal length | 2432mm |
| Native f/ratio | f/8.0 |
| Image circle | — |
| Full-frame support | Yes |
| Physical | |
| Weight | 26.5kg |
Typical FOV & image scale
With Full-frame (36×24mm, 3.76µm)
FOV 0.85° × 0.57°
Scale 0.32″/px
With APS-C (23.5×15.7mm, 3.76µm)
FOV 0.55° × 0.37°
Scale 0.32″/px
With IMX533 square (11.3×11.3mm, 3.76µm)
FOV 0.27° × 0.27°
Scale 0.32″/px
Typical targets
- IC IC 5146 — Cocoon NebulaEmission Nebula · 12′
- Messier M9 — Globular Cluster M9Globular Cluster · 12′
- Messier M30 — Globular Cluster M30Globular Cluster · 12′
- Messier M36 — Pinwheel ClusterOpen Cluster · 12′
- Messier M54 — Globular Cluster M54Globular Cluster · 12′
- Messier M63 — Sunflower GalaxyGalaxy · 12′
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