telescope
Celestron
RASA 6
152mm Rowe-Ackermann Schmidt Astrograph · 335mm f/2.2
Fast 6-inch Rowe-Ackermann Schmidt Astrograph. 16 mm image circle; not suitable for full-frame sensors.
Best for
- Wide-field nebulae and Milky Way regions
- Fast imaging — short exposures per sub
Specifications
| Optics | |
| Type | astrograph |
| Optical design | Rowe-Ackermann Schmidt Astrograph |
| Aperture | 152mm |
| Focal length | 335mm |
| Native f/ratio | f/2.2 |
| Image circle | 16mm |
| Full-frame support | No |
| Physical | |
| Weight | 3.8kg |
Typical FOV & image scale
With Full-frame (36×24mm, 3.76µm)
FOV 6.16° × 4.11°
Scale 2.32″/px
With APS-C (23.5×15.7mm, 3.76µm)
FOV 4.02° × 2.69°
Scale 2.32″/px
With IMX533 square (11.3×11.3mm, 3.76µm)
FOV 1.93° × 1.93°
Scale 2.32″/px
Typical targets
- M42 — Orion NebulaEmission Nebula · 85′Plan this target
- IC 5070 — Pelican NebulaEmission Nebula · 80′Plan this target
- M7 — Ptolemy's ClusterOpen Cluster · 80′Plan this target
- NGC 2237 — Rosette NebulaEmission Nebula · 80′Plan this target
- M8 — Lagoon NebulaEmission Nebula · 90′Plan this target
- M24 — Sagittarius Star CloudOpen Cluster · 90′Plan this target
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Source: agenaastro.com