Seeing prominences with 5 nm H-alpha filter
- Jordan Konisky
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Seeing prominences with 5 nm H-alpha filter
Looking into purchasing a Astrodon 5nm Hydrogen-alpha filter. Would I be able to see solar prominences with this filter or do I need a more narrow band filter. Thanks.
Jordan -
SkyWatcher ED100 Refractor with Diamond Steeltrack Crawford Focuser
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SkyWatcher ED100 Refractor with Diamond Steeltrack Crawford Focuser
Celestron CG4 Equatorial Mount
Daystar Quark H-Alpha Chromosphere
Lunt CaK B1800 Filter Module
Lunt White Light Solar Wedge
ZWO ASI174MM, ZWOASI1600MM Cameras
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Re: Seeing prominences with 5 nm H-alpha filter
Hello Jordan,
A quick web search has come-up with a possible answer, although whether it is accurate enough for you purposes is unknown to me.
https://stargazerslounge.com/topic/3256 ... re-images/
I hope you get a good result.
cheers
Terry
A quick web search has come-up with a possible answer, although whether it is accurate enough for you purposes is unknown to me.
https://stargazerslounge.com/topic/3256 ... re-images/
I hope you get a good result.
cheers
Terry
- JochenM
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Re: Seeing prominences with 5 nm H-alpha filter
That won't work I'm afraid.
Short version, the bandpass on that filter (eventhough it's considered quite narrow for night time use on nebulae etc); is way too wide for solar use. As a result, you'll end up with just an orange/red looking disk without any features to speak of.
Short version, the bandpass on that filter (eventhough it's considered quite narrow for night time use on nebulae etc); is way too wide for solar use. As a result, you'll end up with just an orange/red looking disk without any features to speak of.
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Re: Seeing prominences with 5 nm H-alpha filter
5nm to much
you need 1nm filter for proms you can get them from Andover optical
i have done that
2 ways
method one is the "thousand oaks" method where filter is placed in a tilt-tune holder and in a scope running at min f25 plus front ERF
method two is making an SPV(solar prom viewer) David Groski has instructions I have built 2 of them and it works well
it has occulting disk - it creates artificial eclipse
i have seen proms in Ha and Hb with this method and proper filter
you need 1nm filter for proms you can get them from Andover optical
i have done that
2 ways
method one is the "thousand oaks" method where filter is placed in a tilt-tune holder and in a scope running at min f25 plus front ERF
method two is making an SPV(solar prom viewer) David Groski has instructions I have built 2 of them and it works well
it has occulting disk - it creates artificial eclipse
i have seen proms in Ha and Hb with this method and proper filter
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Re: Seeing prominences with 5 nm H-alpha filter
here is pic I took with spv and 1nm Ha filter
that black disk is not done by software but actual occulting disk
that black disk is not done by software but actual occulting disk
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Re: Seeing prominences with 5 nm H-alpha filter
method 1 (Hau) h alpha unit using skybender tilt device
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Re: Seeing prominences with 5 nm H-alpha filter
The Astrodon is a night light pollution filter. You need a proper solar Ha telescope or solar Ha filter and blocking filter to mount on a refractor to see surface detail, including prominences
Solarscope SF70DS + TV85
TSA-120, Baader wedge
TSA-120, Baader wedge
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Re: Seeing prominences with 5 nm H-alpha filter
link to thousand oaks model
i dont think they sell them anymore
http://www.thousandoaksoptical.com/wp-c ... ctions.pdf
i dont think they sell them anymore
http://www.thousandoaksoptical.com/wp-c ... ctions.pdf
- Jordan Konisky
- Im an EXPERT!
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Re: Seeing prominences with 5 nm H-alpha filter
Thank you everyone for your constructive comments.
Jordan -
SkyWatcher ED100 Refractor with Diamond Steeltrack Crawford Focuser
Celestron CG4 Equatorial Mount
Daystar Quark H-Alpha Chromosphere
Lunt CaK B1800 Filter Module
Lunt White Light Solar Wedge
ZWO ASI174MM, ZWOASI1600MM Cameras
SkyWatcher ED100 Refractor with Diamond Steeltrack Crawford Focuser
Celestron CG4 Equatorial Mount
Daystar Quark H-Alpha Chromosphere
Lunt CaK B1800 Filter Module
Lunt White Light Solar Wedge
ZWO ASI174MM, ZWOASI1600MM Cameras