Astronomy Specialist






The DayStar Solar System filter wheels allow you to switch from Hydrogen Alpha to Sodium to Calcium and back again, effortlessly and accurately, using just one telescope.

Perfect for outreach and education, the Solar System filter wheel lets you view the Sun through up to four different filters with just the touch of a button. Behaviours of different elements and features on the Sun can be quickly compared. Each filter still has full +/- 1Å wing shift tuning capability, and the renowned Quantum precision control.

Any of the DayStar wavelengths, bandpasses, or quality combinations can be used. We can even supply custom wavelengths for research applications. Call or email us to discuss your needs.

Already have a DayStar? We can move your existing Quantum, ATM, or University filters into the new housing. T-Scanner or SolaREDi owners can make use of the DayStar trade-up policy to lower the cost of entry.

Budget tight? Start with just two positions filled, then return it to the factory to add more filter positions at any time.

The Solar System filter wheel is available in the following configurations (for custom solutions please contact us):

  • 0.5Å SE Hydrogen Alpha and 2Å Calcium II K
  • 0.5Å SE Hydrogen Alpha, 0.7Å SE Hydrogen Alpha, 5Å Calcium II H, and 2Å Calcium II K
  • 0.5Å PE Hydrogen Alpha, 0.7Å PE Hydrogen Alpha, 5Å Calcium II H, and 2Å Calcium II K
  • 0.4Å PE Hydrogen Alpha, 0.7Å SE Hydrogen Alpha, 0.3Å PE Helium D3, and 5Å Calcium II H



178 x 197 x 58 mm
2.3 kg when fully loaded
Accepts standard Quantum plates, providing mounting to T-thread, SCT thread, or 2" drawtube, for use with eyepieces or cameras.
10 to 30VDC, 2.5 amps
Two to four
Filter change time
Less than three seconds
Telescope compatibility
Refractor, SCT, Maksutov (if sufficient focus travel)
Focal ratio Best performance at F/30, recommended range: F/27-F/35
Remote control RS-232 serial port required. Quantum Control software for Windows, or communication protocol available for programmers to utilize on other operating systems.
Welcome Newcomer