telescope
Astro-Tech
AT10RC
254mm Truss Ritchey-Chrétien · 2000mm f/8.0
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 | 254mm |
| Focal length | 2000mm |
| Native f/ratio | f/8.0 |
| Image circle | — |
| Full-frame support | Yes |
| Physical | |
| Weight | 17.7kg |
Typical FOV & image scale
With Full-frame (36×24mm, 3.76µm)
FOV 1.03° × 0.69°
Scale 0.39″/px
With APS-C (23.5×15.7mm, 3.76µm)
FOV 0.67° × 0.45°
Scale 0.39″/px
With IMX533 square (11.3×11.3mm, 3.76µm)
FOV 0.32° × 0.32°
Scale 0.39″/px
Typical targets
- Messier M11 — Wild Duck ClusterOpen Cluster · 14′
- Messier M28 — Globular Cluster M28Globular Cluster · 14′
- Messier M92 — Globular Cluster M92Globular Cluster · 14′
- NGC NGC 891 — Silver Sliver GalaxyGalaxy · 14′
- NGC NGC 7635 — Bubble NebulaEmission Nebula · 15′
- Messier M26 — Open Cluster M26Open Cluster · 15′
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