![ASA600 on ASA Direct Drive mount at La Silla (ESO)](https://www.astrosysteme.com/wp-content/uploads/2020/11/eso-la-silla-chile4.jpg)
Big ASA RC telescopes for ESO
Big ASA telescopes for ESO
Big ASA telescopes for ESO
![ASA600 on ASA Direct Drive mount at La Silla (ESO)](https://www.astrosysteme.com/wp-content/uploads/2020/11/eso-la-silla-chile5.jpg)
Impressions of Planet Hunters ExTrA
Imagecredit: ESO, Petr Horálek, Emmanuela Rimbaud
Products in use
ASA RC600_2
0.6m Ritchey-Chrétien, polar wedge and DDM200 Direct Drive mount
- Optical design: Ritchey-Chrétien RC
- Linear central obstruction: 40%
- Focal length: 4200mm
- Focal ratio system: f7
- Clear Aperture / Focal Ratio Primary Mirror: 600mm (23.6 inch) / f2.5
- Image field: 100mm (1.36 degrees)
- Mirror material: Fused silica
- Back Focus from flange: 210.38mm
- Weight tube: 105kg (231lbs)
- Motor: ASA Direct Drive
- Latitude Range: 0 to 90 degrees
- Max. load capacity: 200kg (441lbs)
- Weight mount (without counterweight): 138kg (304lbs)
- Software: ASA API (application programming interface) available autumn 2024 ASA Software(Autoslew, Sequence-windows based, ACC) with ASCOM-Alpaca
- Max. slew speeds: Up to 50 degrees per second
- Pointing Accuracy (20° to 85°): <8” RMS with pointing model and ASA telescope
- Tracking Accuracy (20° to 85°): <0,25” RMS within 5 minutes tracking time over 5 min 0,05” RMS/min
- System Natural Frequency: 10 Hz or greater
![ASA600+DDM200+polar wedge](https://www.astrosysteme.com/wp-content/uploads/2021/12/asa600ddm200polhoehenblock-1-768x1055.png)