FREE SHIPPING

On Hundreds of Products details ›

CALL US TOLL FREE 800-266-9590

Astrodon Exo-Planet Clear Filter with Blue Blocking - 31 mm Unmounted Insert - XOPBB-31R

SKU: ASD-XOPBB-31R

Due to either high demand, or the specific nature of this product, lead times may run longer than other products. Contact us at info@highpointscientific.com for a projected arrival date.

.

free shipping free shipping

One of the many benefits to becoming a customer of High Point Scientific is that you receive Unlimited Tech Support on all of the products you purchase from us.  We understand that many of our products are technical in nature and require support.  Rest assured that our team of Telescope and Telescope Accessory experts will be standing by (800.266.9590) to support you for as long as you own one of our products!  

Our price: $195.00
Bread Checkout
 

About Astrodon ExoPlanet Filters



Astrodon filters are high performing, durable filters that provide significant aid for astrophotography and research pursuits. Each filter is constructed using a highly innovative process with a single high quality 3 mm thick fused silica substrate and full hard oxide sputtered coatings. Astronomers using typical amateur grade backyard telescopes and sensitive CCD cameras can now measure the miniscule decreases in light emitted by suns of other solar systems as large extrasolar planets pass in front of them with this Astrodon ExoPlanet filter with blue blocking.



Astrodon ExoPlanet Clear Filter with Blue Blocking



With Astrodon Exo-Planet filters, casual astronomers with ordinary telescope equipment now have the ability to measure extrasolar planet light curves. Although this may initially appear to be an unreasonable goal, amateur stargazers with sensitive CCD cameras are capable of determining the measurements of miniscule decreases in light emitted by stars as large exoplanets pass in front of them.



The design of the Astrodon Exo-Planet Light Curve Filter is based on the comprehensive research performed by Bruce Gary for his book, "Exoplanet Observing for Amateurs." In this book, Gary concludes that the default filter choice for astronomers wishing to view exoplanets should be a clear filter with blue blocking due to its high signal-to-noise ratio coupled with most of the reduced systematics benefits associated with V and R band viewing. This filter is recommended for observing transiting extrasolar planets with more than 10th magnitude brightness with telescopes at least 16 inches in diameter. With this clear blue blocking filter, reference stars that don't share the same color as the target star won't generate irritating air mass curvatures in the light curve. In addition, most moonlight will also be blocked by this filter for better signal-to-noise. Lastly, lower atmospheric extinction is demonstrated in observations using the Astrodon ExoPlanet-BB filter.



This filter transmits light from approximately 500 nm, corresponding to the conventional V-band filter shape, into the near-infrared region, while blocking both blue and UV light. Gary also states that a “near-infrared filter should be used when observations at low elevations are necessary or when a nearly full moon is above the horizon.” The Astrodon NIR Luminance filter with 700 nm to near-infrared transmittance is suitable for this purpose.



As with all Astrodon filters including the LRGB, narrowband, NIR, and photometric models, the ExoPlanet-BB filter is made using a single 3 mm thick substrate to keep refocusing requirements low. Both sides of this filter contain anti-reflective coatings.

Description
Description

About Astrodon ExoPlanet Filters

Astrodon filters are high performing, durable filters that provide significant aid for astrophotography and research pursuits. Each filter is constructed using a highly innovative process with a single high quality 3 mm thick fused silica substrate and full hard oxide sputtered coatings. Astronomers using typical amateur grade backyard telescopes and sensitive CCD cameras can now measure the miniscule decreases in light emitted by suns of other solar systems as large extrasolar planets pass in front of them with this Astrodon ExoPlanet filter with blue blocking.

Astrodon ExoPlanet Clear Filter with Blue Blocking

With Astrodon Exo-Planet filters, casual astronomers with ordinary telescope equipment now have the ability to measure extrasolar planet light curves. Although this may initially appear to be an unreasonable goal, amateur stargazers with sensitive CCD cameras are capable of determining the measurements of miniscule decreases in light emitted by stars as large exoplanets pass in front of them.

The design of the Astrodon Exo-Planet Light Curve Filter is based on the comprehensive research performed by Bruce Gary for his book, "Exoplanet Observing for Amateurs." In this book, Gary concludes that the default filter choice for astronomers wishing to view exoplanets should be a clear filter with blue blocking due to its high signal-to-noise ratio coupled with most of the reduced systematics benefits associated with V and R band viewing. This filter is recommended for observing transiting extrasolar planets with more than 10th magnitude brightness with telescopes at least 16 inches in diameter. With this clear blue blocking filter, reference stars that don't share the same color as the target star won't generate irritating air mass curvatures in the light curve. In addition, most moonlight will also be blocked by this filter for better signal-to-noise. Lastly, lower atmospheric extinction is demonstrated in observations using the Astrodon ExoPlanet-BB filter.

This filter transmits light from approximately 500 nm, corresponding to the conventional V-band filter shape, into the near-infrared region, while blocking both blue and UV light. Gary also states that a “near-infrared filter should be used when observations at low elevations are necessary or when a nearly full moon is above the horizon.” The Astrodon NIR Luminance filter with 700 nm to near-infrared transmittance is suitable for this purpose.

As with all Astrodon filters including the LRGB, narrowband, NIR, and photometric models, the ExoPlanet-BB filter is made using a single 3 mm thick substrate to keep refocusing requirements low. Both sides of this filter contain anti-reflective coatings.

Specifications
Specifications
Model Number XOPBB-31R
Single Filter, Set, or Accessory Single Filter
Filter Type Clear
Filter Size 31 mm
Filter Shape Round
Filter Insert Style Drop-In
Warranty Astrodon 5 Years
What's in the Box?
What's in the Box?
  • Exo-Planet Clear Filter with Blue Blocking
  • Protective Filter Case
  • Astrodon ExoPlanet Light Curve Filter with Blue Blocking
Our Customer Commitment
  • Fast Shipping, Same or Next Day: You made the commitment to purchase, now you want that new item fast, we get it! At High Point all in stock orders ship within 24 hours, pending internal credit card approval.Read more ...
  • Unlimited Tech Support Forever: One of the many perks of being a High Point customer is that you get access to our tech support team forever! We are astronomers at heart and truly enjoy helping fellow amateurs achieve success in the field! Read more ...
  • 30 Day Return Policy: Ordered the wrong product? Don't worry, we'll take the majority of our products back within 30 days of the purchase date.We want to get you into the observing setup that bests fits your needs. Read more ...
  • Guaranteed Price Match: Call or email us if you find a better price on a product! Provide a link for our team to confirm the price and within a matter of seconds you'll have a price match providing the re-seller is within the USA and authorized by the manufacturer to sell the product of interest. Read more ...
  • We're Your Connection To The Manufacturer: In the event there is a warranty issue with a product purchased from High Point, we will serve as the liaison between you and the Manufacturer. The net result is faster, more attentive service from the Manufacturer and an enhanced customer experience. Read more ...

Please wait...