telescope
Celestron
EdgeHD 9.25
235mm Aplanatic SCT · 2350mm f/10.0
Aplanatic Schmidt-Cassegrain; ideal for galaxies and planetary nebulae.
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 | SCT |
| Optical design | Aplanatic SCT |
| Aperture | 235mm |
| Focal length | 2350mm |
| Native f/ratio | f/10.0 |
| Image circle | 42mm |
| Full-frame support | Yes |
| Physical | |
| Weight | 9.5kg |
Typical FOV & image scale
With Full-frame (36×24mm, 3.76µm)
FOV 0.88° × 0.59°
Scale 0.33″/px
With APS-C (23.5×15.7mm, 3.76µm)
FOV 0.57° × 0.38°
Scale 0.33″/px
With IMX533 square (11.3×11.3mm, 3.76µm)
FOV 0.28° × 0.28°
Scale 0.33″/px
Recommended accessories
- Celestron EdgeHD 0.7x Reducer (9.25")reducer · 0.7× focal lengthmanufacturer supported
- Tele Vue Powermate 2.5xfocal_extender · 2.5× focal lengthcommonly used
- Tele Vue Powermate 4xfocal_extender · 4× focal lengthcommonly used
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′
Recommended cameras
28.4mm sensor · 4.78µm px · cooled
Compare pairing28.3mm sensor · 3.76µm px · cooled
Compare pairing28.3mm sensor · 3.76µm px · cooled
Compare pairing