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Large prominence now!

  • TrevorDurity
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17 years 2 months ago #41696 by TrevorDurity
Large prominence now! was created by TrevorDurity
Howdy,

For anyone with HA.

Only got a quick glance because of clouds but there is a nice large prominence on the western limb of the Sun at the moment. Same one as yesterday but I reckon at least twice the size.

Trev

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17 years 2 months ago #41701 by Matthew C
Replied by Matthew C on topic Re: Large prominence now!
Hi trev! I'm new to the whole Solar lingo! HA, i know it is H-Alpha but what is it? a solar filter? can the prominence be seen with a solar filter?
We shall not cease from exploration
And the end of all our exploring
Will be to arrive where we started
And know the place for the first time. . . .
T. S. Eliot
A wise man....

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  • TrevorDurity
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17 years 2 months ago #41711 by TrevorDurity
Replied by TrevorDurity on topic Re: Large prominence now!
Hey Matt.

Yep, stands for Hydrogen Alpha. Since the solar mass mainly consists of hydrogen the ha filters look at the particular wavelength at which it burns, 654.3nm.

Normal "white-light" like Baader AstroSolar are great for looking at sunspots and plage and sometimes the granularity. You wouldn't see prominences or filaments though.

The PST is great value but is only 40mm. If you go higher than that it costs an absolute arm and a leg.

More info on CoronadoFilters.com

Trev

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