Welcome to The Cosmic Observatory – Astrophotography & Travel Blog
Equipment
Wide Field
- Telescope: Orion ED80T CF (APO)
- Aperture size: 80mm
- Focal Ratio: 6
- Focal Length: 480mm or 384 with 0.8 reducer
- Focuser: Moonlight
- Focus Motor: Moonlight High Res Stepper
- Filter Wheel: Starlight Xpress 7 position
- Filters: Baader L, R, G, B, Ha, OIII, SII
- Filters (color): Optolong L-Ultimate & Color Magic SII & OIII
- Filter Wheel: ZWO EFW 5 Position
- Guide Scope: Orion Mini 50 mm f/3.2
- Cameras: Atik 460EX & ZWO ASI2600 Pro
- Mount: ZWO AM5N
Deep Field
- Telescope: Askar 120 APOFocuser: 3.3" dual-speed rack and pinion focuser
- Focus Motor: ZWO EAF
- Aperture size: 120mm
- Focal Length: 840mm ( 672mm with 0.8 Focal reducer)
- Focal Ratio: f/7 (reducable down to f/5.6 with additional accessory)
- Optical design: Triplet air-spaced APO (including one ED glass)
- Total tube length:
- 722mm（when dew shield is contracted）
- 804mm（when dew shield is extended）
- OTA weight: 12.6 lbs (5.7 kg)
- Dew shield OD: 139mm / 5.47"
- Filter Wheel: Starlight Xpress 7 position
- Filters: Baader L, R, G, B, Ha, OIII, SII
- Filters (color): Optolong L-Ultimate & Color Magic SII & OIII
- Filter Wheel: ZWO EFW 5 Position
- Guide Scope: SkyWatcher Evoguide 50EX f/4.8
- Cameras: Atik 460EX & ZWO ASI2600 Pro
Cameras
ZWO ASI2600MC Pro
- Sensor: Sony IMX571 APS-C format color CMOS.
- Resolution: 26 Megapixels (6248 x 4176).
- Pixel Size: 3.76μm x 3.76μm.
- Native Bit Depth: True 16-bit Analog-to-Digital Converter (ADC).
- Dynamic Range: Up to 14 stops.
- Quantum Efficiency (QE): Over 80% peak QE.
- Full Well Capacity: 50,000e.
- Readout Noise: 1.0e - 3.3e.
- Cooling: Two-stage TEC cooling system capable of reducing the sensor temperature to more than -35°C below ambient.
- Dew Heater: Built-in polyimide heater to prevent condensation
ATIK 460EX
- Sensor: Sony ICX694 CCD with EXview HAD CCD II technology.
- Resolution: 2750 x 2200 pixels (6.1 M 120P).
- Pixel Size: 4.54 µm x 4.54 µm.
- Sensor Diagonal: 15.99 mm.
- ADC: 16 bit.
- Readout Noise: 5e- (typical value).
- Quantum Efficiency: 77%
- Cooling: Thermoelectric set-point cooling with a maximum delta T of -25°C.
PLANETARY AND GUIDE CAMERS
- ZWO ASI120 MM-S
- ZWO174MM Mini