telescope
Astro-Tech
AT8RC
203mm Ritchey-Chrétien · 1624mm f/8.0
8" carbon-fiber Ritchey-Chrétien astrograph; classic long-focus imaging platform.
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 | RC |
| Optical design | Ritchey-Chrétien |
| Aperture | 203mm |
| Focal length | 1624mm |
| Native f/ratio | f/8.0 |
| Image circle | 42mm |
| Full-frame support | Yes |
| Physical | |
| Weight | 10.0kg |
Typical FOV & image scale
With Full-frame (36×24mm, 3.76µm)
FOV 1.27° × 0.85°
Scale 0.48″/px
With APS-C (23.5×15.7mm, 3.76µm)
FOV 0.83° × 0.55°
Scale 0.48″/px
With IMX533 square (11.3×11.3mm, 3.76µm)
FOV 0.40° × 0.40°
Scale 0.48″/px
Typical targets
- Messier M19 — Globular Cluster M19Globular Cluster · 17′
- NGC NGC 6888 — Crescent NebulaEmission Nebula · 18′
- Messier M3 — Globular Cluster M3Globular Cluster · 18′
- Messier M15 — Great Pegasus ClusterGlobular Cluster · 18′
- NGC NGC 7023 — Iris NebulaReflection Nebula · 18′
- Messier M2 — Globular Cluster M2Globular Cluster · 16′
Recommended cameras
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Source: astronomics.com