Orion 1.25" H-Beta Nebula Filter


Orion 1.25" H-Beta Nebula filter.


  • Isolates the H-Beta spectral line centered at 486.1nm in a 12nm band-pass
  • Blocks other wavelenghts
  • Blackens the background sky
  • Clearly defines the faint nebula
  • Perhaps the only way to see the faint and elusive Horsehead, California, and Cocoon Nebulas
  • Selective band-pass filter transmits only the hydrogen-beta light these faint nebulas emit
  • Allows you to capture targets that are considered trophies of visual astronomy
  • Best used with a moderate to large aperture telescope and clear, dark skies
  • Threaded to fit 1.25" eyepieces and diagonal barrels


The physical stock of this product is kept at the official importer.  Our latest information is that there is stock, but upon receipt of an order we will confirm availability of stock at the importer, typically within 24 hours.  If available, the product will only be ordered from the importer upon receipt of the full purchase price.  Delivery to our office is typically 2 to 4 working days.  Collection at the importer warehouse can be arranged.
Availability typical 2 to 4 days

Note:  The price on our website is based upon the latest price list received from the importer and should be correct.  However, there may be delays before our online price reflects the updated price.  We will honour the price as far as possible, but reserve the right to review the price..

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  • Model: OR_5583
  • Shipping Weight: 0.1kgs
  • 4 Units in Stock
  • Manufactured by: Orion

This product was added to our catalog on Wednesday 05 August, 2009.

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