Old 28-01-2019, 10:04 AM
gaseous (Patrick)
Registered User

gaseous is offline
Join Date: May 2016
Location: Brisbane
Posts: 580
Visual Ha filter

Hello all,

Not sure if this is the right forum for this question. I recently took possession of a second-hand Skywatcher ST120 refractor, which came with a clip-on full aperture solar film filter. I've never tried solar viewing before so it's been quite enjoyable so far, despite the recent lack of solar activity and the fact that solar observing during a Queensland summer with pale skin has very little to recommend it.

My question is, is there a reasonably cost effective (like, a coupla hundred bucks max) eyepiece filter which in addition to the solar film filter might add a bit more detail to the view? At the moment I can see sunspots, but no other surface/prominence details, but from the little I've read, adding a normal Ha filter will just give a red view of the sun without any additional details, and the "proper" solar filters are hugely expensive.

Happy to be told I'm dreaming and return to nocturnal viewing. Thanks.
Reply With Quote
Old 28-01-2019, 12:51 PM
Merlin66's Avatar
Merlin66 (Ken)
Spectroscopy Wizard

Merlin66 is offline
Join Date: Oct 2005
Location: St Leonards, Vic
Posts: 7,703
What you've read so far is pretty accurate.
Adding a Continuum filter to a white light filter set-up can improve contrast - if there are sunspots to see!

Unfortunately to view the Chromosphere - proms, filaments etc requires a very expensive filter - the Quark, or one of the Coronado/ Lunt scopes.
Reply With Quote
Old 28-01-2019, 01:49 PM
gaseous (Patrick)
Registered User

gaseous is offline
Join Date: May 2016
Location: Brisbane
Posts: 580
Thanks Ken, I actually think it was your feedback on the Stargazers Lounge forum that I was reading regarding this. Might just have to settle for sunspots and be content with that. Thanks again.
Reply With Quote
Old 28-01-2019, 08:50 PM
Ukastronomer (Jeremy)
Feel free to edit my imag

Ukastronomer is offline
Join Date: Jan 2019
Location: Llandysul, WALES, UK
Posts: 1,381
Here is the link I started

Reply With Quote


Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT +10. The time is now 03:17 PM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Lunatico Astronomical
Astronomy and Electronics Centre