telescope
Celestron
EdgeHD 8
203mm Aplanatic SCT · 2032mm 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 | 203mm |
| Focal length | 2032mm |
| Native f/ratio | f/10.0 |
| Image circle | 42mm |
| Full-frame support | Yes |
| Physical | |
| Weight | 6.4kg |
Typical FOV & image scale
With Full-frame (36×24mm, 3.76µm)
FOV 1.02° × 0.68°
Scale 0.38″/px
With APS-C (23.5×15.7mm, 3.76µm)
FOV 0.66° × 0.44°
Scale 0.38″/px
With IMX533 square (11.3×11.3mm, 3.76µm)
FOV 0.32° × 0.32°
Scale 0.38″/px
Recommended accessories
- Celestron EdgeHD 0.7x Reducer (8")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
- 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′
- Messier M21 — Open Cluster M21Open Cluster · 13′
- Messier M52 — Open Cluster M52Open Cluster · 13′
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