Archive for the ‘Filters’ Category
Skywatching Guide: How to Observe the Bright Twin Stars Gemini
Skywatching Guide: How to Observe the Bright Twin Stars Gemini
Any telescope with an aperture of at least 60 mm (2.4 inches) should be able to see the binary as two individual stars. The bodies of the twins are marked by parallel lines of stars. [12 Must-See Skywatching Events in 2012] About halfway down the …
Read more on Space.com
GLOBE at Night – Helping to Save the Night Sky
Since most of the human population lives in or around big cities we have become detached from our night sky heritage as artificial lights filter out natural star light. Ask a young person about the Milky Way and you're more often than not going to get …
Read more on National Geographic
Microbial Academy of Sciences Turns Cyanobacteria Into Cosmonauts
He's created an array of petri dishes filled with brackish water taken from the San Francisco Bay and placed them atop a flat-screen monitor laid on its back, which pulses and glows with imagery supplied by the Hubble Space Telescope.
Read more on Wired News
No CommentsTELESCOPE EYEPIECE 4 COLOR FILTERS & CASES
Telescope Filter on eBay:
Celestron 2'' UHC Telescope Eyepiece Filter Light Pollution Ultra High Contrast
 | US $74.99 End Date: Friday May-18-2012 14:22:47 PDT Buy It Now for only: US $74.99 Buy it now | Add to watch list |
Celestron 2'' Oxygen 3 Telescope Eyepiece Filter - NEW
 | US $89.99 End Date: Friday May-18-2012 14:24:23 PDT Buy It Now for only: US $89.99 Buy it now | Add to watch list |
Nice Telescope Filter photos
Check out these Telescope Filter images:
PICT2232
Image by Michael Fienen
Jodrell Bank Radio Telescope
Image by oatsy40
The main radio telescope at Jodrell bank in Cheshire
Telescope lens and accessory case with plenty of extra room
Image by drbrain
Posted by twitter.com/drbrain
TELESCOPES.COM (Zhumell 1.25in. Eyepiece and Filter Kit)
The Zhumell eyepiece and filter kit is a great way to make the most of your telescope! Zhumell kits include a selection of eyepieces and filters that optimize available light. This, in turn, allows planetary features, galaxies, and binary systems to stand out in fine detail.
5 CommentsWhat type of light pollution filter should I get for my telescope?
Question by shish2kabob: What type of light pollution filter should I get for my telescope?
I have an 8 incj dobsonian reflector telescope and live in an area close to a city so at times there can be a bit of light pollution. I want to get a light pollution filter to view nebula more clearly, emission nebula to be specific. I read reviews on filters called narrow banded filters and OIII filters. Wat is the difference between these types of filters and which one should I buy? Please let me know if any information is further needed
Best answer:
Answer by GeoffG
Narrow band filters like the Lumicon UHC and Orion UltraBlock are the best all-around choice, since they block most of the bad light and pass the main nebula bands. The OIII has an even narrower band pass, so needs a larger aperture to function well.
Know better? Leave your own answer in the comments!