Observe the Sun
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Sonnenbeobachtung
Solar observation is a very interesting area of Astronomy. There is something new to see here practically every day. Our home star is constantly changing! Regardless of in white light or in the narrow-band hydrogen or calcium band, observations of the processes on the sun are very impressive!
50mm H-alpha double-stack solar filter, for all LS50FHa filter-systems and LS60THa/LS60MT telescopes
With this filter LS60 telescopes and LS50FHa filter systems show even more details on the solar surface
1949.00 €
Estimated delivery time : 3-4 days
80MM WHITE LIGHT SUN DETECTOR WITH AUTOMATIC SUN TRACKER MOUNTING
- 80mm Solarus solar telescope with built-in glass solar filter
- 1.2'' zoom eyepiece 25x, 40x and 80x
- save solar finder
- Filter wheel with inserted red, yellow, blue, green, orange & ND (neutral density) filters, with practical filter indicator.
- 90° zenith mirror
- Universal smartphone adapter (smartphone not included!)
- 45mm Vixen mounting rail (side-mounted)
- Solar Tracker Mount
- Tube Extension
- Alu-Tripod
639.00 €
Estimated delivery time : 3-4 days
80MM White Light SOLARSCOPE
The Acuter Solarus-80 is an 80mm solar telescope with a secure, fixed glass white light solar filter.
- 80mm Solarus solar telescope with built-in glass solar filter
- 1.2'' zoom eyepiece 25x, 40x and 80x
- save solar finder
- Filter wheel with inserted red, yellow, blue, green, orange & ND (neutral density) filters, with practical filter indicator.
- 90° zenith mirror
- Universal smartphone adapter (smartphone not included!)
- 45mm Vixen mounting rail (side-mounted)
219.00 €
Estimated delivery time : 3-4 days
The Altair Dichroic Solar Energy Rejection Filter or D-ERF protects your telescope and solar imaging equipment from excessive heat build-up when solar imaging or observing with your Daystar Hydrogen Alpha Quark, or other Hydrogen Alpha Etalon filters.
595.00 €
Estimated delivery time : 1-2 days
Altair 130mm Aperture Energy Rejection filter - Ha Hydrogen Alpha only D-ERF for 5" Refractors
Product Features:
- Reduces approx. 98% of heat reaching the optics to keep Etalon from drifting off-band and protect your equipment.
- 30-40nm FHWM Bandpass at H-alpha (H) wavelength of 656.28 nm (Full Width Half Minimum) Transmission: ~90%
- UVIR blocking OD3 0.1% @400-1100nm blocking over 98% of heat to your 3rd party Etalon at eyepiece or camera end, E.g. Daystar Quark). Please note it's your responsibility to use a proper commercial Etalon with this product, and to follow the manufacturer's instructions.
- Visible light blocking: OD4 0.01% @400-700nm to reduce reflection effects and over 98% of heat.
- Diameter 140mm Thickness 12.0mm
- Multilayer coatings with SiO2 protective overcoat.
- ERF Holder cell included with soft tip threaded knobs. Tough and very light, easy to disassemble for cleaning the filter with optical wipes. Cell does not put any tension on the optics and will not scratch or damage your telescope. It also won't alter the balance as much as an aluminium cell.
799.00 €
Estimated delivery time : 2-4 weeks
The Altair Dichroic Solar Energy Rejection Filter or D-ERF protects your telescope and solar imaging equipment from excessive heat build-up when solar imaging or observing with your Daystar Hydrogen Alpha Quark, or other Hydrogen Alpha Etalon filters.
- Reduces approx. 98% of heat reaching the optics to keep Etalon from drifting off-band and protect your equipment.
- 30nm FHWM Bandpass at H-alpha (H) wavelength of 656.28 nm (Full Width Half Minimum) Transmission: ~95.5%
- 40nm FHWM Bandpass with CWL at 395nm covering Calcium H-Line and Calcium K-Line wavelengths. Transmission: ~90.5%
- UVIR blocking OD3 0.1% @400-1100nm blocking over 98% of heat to your 3rd party Etalon at eyepiece or camera end, E.g. Daystar Quark). Please note it's your responsibility to use a proper commercial Etalon with this product, and to follow the manufacturer's instructions.
- Visible light blocking: OD4 0.01% @400-700nm to reduce reflection effects and over 98% of heat.
- Diameter 140mm Thickness 12.0mm (required to achieve surface precision)
- Multilayer coatings with SiO2 protective overcoat.
- ERF Holder cell included with soft tip threaded knobs. Tough and very light, easy to disassemble for cleaning the filter with optical wipes. Cell does not put any tension on the optics.
929.00 €
Estimated delivery time : 2-4 weeks
The Altair Dichroic Solar Energy Rejection Filter or D-ERF protects your telescope and solar imaging equipment from excessive heat build-up when solar imaging ...
1359.00 €
Estimated delivery time : 1-2 weeks
The Altair Solar Energy Rejection Filter or D-ERF protects your telescope and solar imaging equipment from excessive heat build-up when solar imaging or observing with your Daystar Ha Quark, or other Etalon filters.
1739.00 €
Estimated delivery time : 2-4 weeks
Another first for solar astronomy, the Altair G-Band 2nm Solar filter enhances finer details in the solar photosphere.
Altair 2nm G-Band Solar Contrast Filter filter specifications:
- Standard 1.25" Filter Threaded Aluminium Cell
- CWL 430.3nm @ 96% transmission, tolerance 1%
- FWHM 2nm, tolerance 0.5nm.
- 1.85mm thick quartz ?/4, Parallelism (arcsec) 30"
- Si02 "hard" overcoat with UVIR Block 300-1100nm and Anti-Reflection Coating
- High resolution spectrographic test report included corresponding to each individual filter.
239.00 €
Estimated delivery time : 2-4 weeks
Another first for solar astronomy, the Altair G-Band 2nm Solar filter enhances finer details in the solar photosphere.
Altair 2nm G-Band Solar Contrast Filter filter specifications:
- Standard 2" Filter Threaded Aluminium Cell
- CWL 430.3nm @ 96% transmission, tolerance 1%
- FWHM 2nm, tolerance 0.5nm.
- 1.85mm thick quartz ?/4, Parallelism (arcsec) 30"
- Si02 "hard" overcoat with UVIR Block 300-1100nm and Anti-Reflection Coating
- High resolution spectrographic test report included corresponding to each individual filter.
339.00 €
Estimated delivery time : 2-4 weeks
The Altair Dichroic Solar Energy Rejection Filter or D-ERF protects your telescope and solar imaging equipment from excessive heat build-up when solar imaging or observing with your Daystar Hydrogen Alpha Quark, or other Hydrogen Alpha Etalon filters.
729.00 €
Estimated delivery time : 2-4 weeks
The Altair 1.25" Solar Continuum filter Enhances sunspots, granulation, and fine photosphere detail. For use with Baader Solar Filter or Herschel Wedge.
89.00 €
Estimated delivery time : 2-4 weeks
