Solar cycle 25

Alright, this is for sharing of your observation experience. Or, if you are arranging gatherings, star-gazing expeditions or just want some company to go observing together, you can shout it out here.
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yltansg
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Re: Solar cycle 25

Post by yltansg »

Adding a pseudo-coloured image of AR2871:

Image

Cheers.

Alfred
vernonfarmer39
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Re: Solar cycle 25

Post by vernonfarmer39 »

yltansg wrote: Fri Sep 24, 2021 7:55 pm Adding a pseudo-coloured image of AR2871:

Image

Cheers.

Alfred
wow! what a beautiful one! how did you capture this one?
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yltansg
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Re: Solar cycle 25

Post by yltansg »

Hi Vernonfarmer39,

The image was taken using a Celestron C11 fitted with a D-ERF, a Daystar Quark Chromosphere and a Basler ace acA1920-155um camera.

Image

I also have other setups for Calcium-K and other image scale captures: https://www.epj-conferences.org/article ... _01002.pdf

Alfred
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yltansg
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Re: Solar cycle 25

Post by yltansg »

8 Oct 21, A survey in Calcium-K wavelength. AR2882 started as a stable Active Region, after discharging a few C-Class flares this week has evolved into a restless AR with 'beta-gamma' magnetic field with energy for M-Class flares.
This is an image from Solar Dynamic Observatory: Image

This image was taken with my Celestron C-11 SCT, coloured in Photoshop:
Image

And in original grey-scale, which provides greater resolution:
Image

Please do a right-click to see the images in their full resolution.

Enjoy.

Alfred
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yltansg
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Re: Solar cycle 25

Post by yltansg »

24Oct21. Used a 76mm refractor to capture the full disk of the Sun in H-Alpha wavelength. More sunspots are appearing. It should be an interesting week ahead.

Image

Nice prominences on the limbs.

Image
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Airconvent
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Re: Solar cycle 25

Post by Airconvent »

Hi superiorstream,
Glad to see you are till going strong! For me, no sunspots is good...haha. Good for our infrastructure and satellites. But like it or not, the cycle will come and you can observe all you want then. :)
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yltansg
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Re: Solar cycle 25

Post by yltansg »

Thanks, Superiorstream for sharing your thoughts.

Here is one spot that it worth watching. AR 2887 is growing and it looks promising.

Image

It's location on the Sun, between 7 and 8 O'clock:
Image

Setup:
Image

Do a right click to see the images in their full resolution.

Enjoy.

Alfred
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yltansg
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Re: Solar cycle 25

Post by yltansg »

26Oct. Tracking AR2887, it is the one to observe as it harbours beta-gamma magnetic field capable of M-Class flares.

Image

The magnificent magnetic structures around the spots give us a clue on energy it harbours.

And I managed to squeeze in all the spots in AR2887:

Image

Enjoy.

Alfred
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yltansg
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Re: Solar cycle 25

Post by yltansg »

I have applied a different post processing to improve the image I posted on 26 Oct:
Image

An expert in Ukraine added his magic touch to bring out even more features:

Image

Please do a right-click to see the images in their full resolution.

What do you think about these images? Are they over-processed?

Alfred
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yltansg
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Re: Solar cycle 25

Post by yltansg »

21Nov - The solar disk was relatively quiet. Global Oscillation Network Group (GONG) showed 1 sunspot

Image

I tried a new HA Solar Spectrum etalon on my C11 workhorse https://alpineastro.com/products/solar- ... r-aperture

Image

Picked up a long filament near the 7-8 O'clock sector:
Image
Please do a right-click to see the image in its full resolution.

This setup is new and I am working on getting it to produce better images.

Alfred
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