Baader Planetarium Moon & Skyglow Telescope Filter

Item #AAS009-1

  • Your Price:
  • $79.00
  • + FREE Shipping
  • Planetary and Lunar views are improved
  • Great for Jupiter's Great Red Spot
  • Martian surface features significanly boosted
  • Darkens background sky and improves subtle detail
  • Great for Galaxies, Nebulae and Globular Clusters
Questions? Let our experts help!
  • Description

    The Baader Planetarium Moon & Skyglow (Neodymium) filter brings an entirely unique approach to contrast enhancement and light pollution reduction. Based on earlier research at Carl Zeiss, Baader has developed a new filter that uses Neodymium glass which filters out a few specific wavelengths from streetlights as well as skyglow from the Moon. The unique spectral characteristics of Neodymium also boost color contrasts by isolating the Red, Green, and Blue regions (so-called RGB enhancement). The result is a filter that leaves natural colors intact, but enhanced.
    Lunar and Planetary views are improved in all scopes, reflectors, refractors (APO or Achro). Jupiter's Great Red Spot and ruddy hues of the bands are noticeably enhanced. The Background sky is darkened, and subtle details improved. The filter's high efficiency preserves image brightness, and many Galaxies, Nebulae and Globular Star Clusters are improved due to the reduction of skyglow from artificial lighting.
    The high quality of Baader Planetarium filters permits stacking with no image degradation. Achromat owners will find the combination of Moon & Skyglow and the new Fringe Killer filter to be ideal for planetary viewing. The high light throughput and natural coloration will make achromats perform more like an apochromat.
    The filter substrate is a special custom melt of Neodymium doped glass, designed for specific transmission characteristics, and made only for Baader Planetarium. In addition to it's unique spectral characteristics, the Baader Moon & Skyglow filter delivers the best possible image sharpness, contrast, and real-world durability.

    Supplier SKU


    Shipping Restrictions

    Only ships in contiguous USA.

  • Dimensions & Specifications

    Filter Size

    1.25 Inch Moon & Skyglow Filter


    Baader Planetarium


    1.25 Inches

    Telescope Accessories Series



    Moon Filters


    2 Year Manufacturers Warranty

    Marketplace Type Code

    Moon Filters

  • Product Guarantee

    We stand behind all the products we sell, and your satisfaction is our top priority. If you're not satisfied with the quality of your purchase, simply send the item back to us in its original packaging within 30 days of its delivery.

    Manufacturer Warranty

    This product has a 2 year manufacturer's warranty against defects is provided. If you have specific questions about this product's warranty please contact Alpine Astronomical's Customer Service department by email at

    Return & Exchange Policy

    At our site, returns are easy! You may return new, unused, and resalable items for a refund or exchange. Simply ensure that the item is returned in its original product packaging within 30 days of delivery.

Customer Q&A

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  • Q1: I'm looking to get a light pollution filter but I already have a lunar filter. Will my lunar filter work for light pollution as well?

    A: A lunar filter will not act like a LPR (light pollution reduction filter), A moon filter is designed to dramatically reduce the light coming into the eyepiece - making the moon more comfortable to view and increase contrast and detail.  

  • Q2: We live in the city with a lot of light pollution and a relatively narrow view of the night sky. Which eyepiece filter would you recommend to use with the Nexstar SLT 80?

    A: We suggest the Baader Moon and Skyglow Filter for anyone that lives in light polluted skies.  This is a great filter and can make a great difference in your viewing enjoyment.

  • Q3: Will this filter thread directly onto the T-ring for Canon EOS for prime focus photography?

    A: Hello, Thank you for your email. The filter will thread into an eyepiece - but if you are using a t-ring/t-adapter - you won't be able to use the filter due to the eyepiece having been taken out of the telescope. Best Regards, Denny

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Ask The Experts

Have questions about an item or need advice on selecting the right astronomy gear? Our team of telescope experts is here to help! Avid amateur astronomers themselves, they've tested products in the field and can provide personalized recommendations.

You can reach our Customer Support line at 1-800-303-5873. We're open 8 a.m. to 8 p.m. Central Time, Monday through Friday and 9 a.m. to 4 p.m. on Saturday.

After hours? Drop us an email at We'll get back to you as soon as possible, usually within 1 business day.