25Jan HA Sun from Singapore

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yltansg
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25Jan HA Sun from Singapore

Post by yltansg »

We were covered by clouds yesterday (24 Jan21)

Image

Image
Are these asperitas clouds? With them around, the canvas cover over the scope did not have a chance to be taken off.

Image
The cloud situation was better today (25 Jan 21). The setup was ARIES D-ERF at full aperture on the faithful C11 + Daystar H-A Chromosphere + Basler acA1920-155um

Fairly good imaging, considering the disturbing clouds all round:

Image
AR2799 on the northern hemisphere near the western limb

Image
The active region near the eastern limb (northern hemisphere)

Please do a right-click and click on "+" to see the images in their full resolution.

Cheers.

Alfred


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Re: 25Jan HA Sun from Singapore

Post by marios i. »

Wonderf!


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Re: 25Jan HA Sun from Singapore

Post by marktownley »

They're amazing Alfred, especially so given that cloud cover.

I'm curious Alfred, you're observing from your usual spot in the 'round garden' - what surrounds the buildings?


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Re: 25Jan HA Sun from Singapore

Post by DeepSolar64 »

They're amazing Alfred, especially so given that cloud cover.
I second Mark's comment!


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Re: 25Jan HA Sun from Singapore

Post by rsfoto »

Hi Alfred,

Well done despite the clouds. I guess the clouds on 24th were Alto Cumulus clouds

https://www.google.com/imgres?imgurl=ht ... egUIARDQAQ

Here how Asperitas clouds look like

https://cloudatlas.wmo.int/es/clouds-su ... ritas.html


regards Rainer

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Re: 25Jan HA Sun from Singapore

Post by Stardust5858 »

Amazing, thanks for sharing.


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Re: 25Jan HA Sun from Singapore

Post by Montana »

They really are beautiful cloud formations (if I am allowed to say that on a solar forum :) ). Superb images too, looks like you imaged the little hotspot Brian saw too :bow :hamster:

Alexandra


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Re: 25Jan HA Sun from Singapore

Post by Valery »

Nice images, Alfred

Hope you will catch better seeing and make even better images.


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Re: 25Jan HA Sun from Singapore

Post by EGRAY_OBSERVATORY »

Excellent images captured between the cloud formation Alfred.

Thanks for sharing

Terry


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Re: 25Jan HA Sun from Singapore

Post by yltansg »

marktownley wrote: Mon Jan 25, 2021 4:18 pm
I'm curious Alfred, you're observing from your usual spot in the 'round garden' - what surrounds the buildings?
Thanks, Mark for your kind comment. There are more low-rise school buildings behind this building in the round garden. There are better locations in the school for solar imaging but this is the best location best trade-offs in terms of students' access and imaging requirements :)

Alfred


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Re: 25Jan HA Sun from Singapore

Post by yltansg »

Hi Alfred,

Well done despite the clouds. I guess the clouds on 24th were Alto Cumulus clouds

Here how Asperitas clouds look like

https://cloudatlas.wmo.int/es/clouds-su ... ritas.html
[/quote]

Hi Rainer,
Nice to know the proper name of this type of clouds. Thanks! Glad we only have time very rarely.

Alfred


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Re: 25Jan HA Sun from Singapore

Post by yltansg »

Valery wrote: Mon Jan 25, 2021 9:58 pm Nice images, Alfred

Hope you will catch better seeing and make even better images.


Valery
Thanks, Valery. The Quark is still doing well. Its electronic components have a life duration and I hope it can last Cycle 25.

Alfred


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Re: 25Jan HA Sun from Singapore

Post by yltansg »

Montana wrote: Mon Jan 25, 2021 6:29 pm They really are beautiful cloud formations (if I am allowed to say that on a solar forum :) ). Superb images too, looks like you imaged the little hotspot Brian saw too :bow :hamster:

Alexandra
Thanks for your kind comment.

I hope I don't get into trouble with 1 more picture on not Asperitas clouds, but Alto Cumulus clouds taken by a friend on the same day ;) Thanks Rainer for pointing our my mistake :oops:

Image

To reduce the risk of being censured for posting unrelated material - let me direct your attention to the wonderful colours that light from the Sun brings through clouds :)

Alfred
Last edited by yltansg on Tue Jan 26, 2021 10:40 pm, edited 3 times in total.


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Re: 25Jan HA Sun from Singapore

Post by DeepSolar64 »

WoW!! Beautiful sunlit cloud colors! I don't think anyone will complain about you posting it on SolarChat. It is SUNlight after all! :)


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Re: 25Jan HA Sun from Singapore

Post by ffellah »

Congratulations on getting these images in such difficult conditions Alfred

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Re: 25Jan HA Sun from Singapore

Post by Valery »

yltansg wrote: Tue Jan 26, 2021 1:12 am
Thanks, Valery. The Quark is still doing well. Its electronic components have a life duration and I hope it can last Cycle 25.

Alfred
I got one very nice 0.4A Quark wich is 5 year old now. It doing well and I keep it always with a dessictant in it's plastic
barrel and use it only when the seeing is good and air humidity is not near 90% or so. Keep your best Quark for best
days.
Humidity is the main enemy.


Valery


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Re: 25Jan HA Sun from Singapore

Post by eroel »

Alfred:
Very good images, looks like you had the same cloudiness as I did on the 23rd of January, though mine loo that are higher and produced a halo.
Best regards.
Eric,
Sol del 23 de enero del 2021-2.jpg
Sol del 23 de enero del 2021-2.jpg (132.95 KiB) Viewed 655 times


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Re: 25Jan HA Sun from Singapore

Post by yltansg »

Valery wrote: Tue Jan 26, 2021 2:25 pm
I got one very nice 0.4A Quark wich is 5 year old now. It doing well and I keep it always with a dessictant in it's plastic
barrel and use it only when the seeing is good and air humidity is not near 90% or so. Keep your best Quark for best
days.
Humidity is the main enemy.


Valery
Thanks Valery for the advice.

Alfred


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Re: 25Jan HA Sun from Singapore

Post by yltansg »

eroel wrote: Tue Jan 26, 2021 2:34 pm Alfred:
Very good images, looks like you had the same cloudiness as I did on the 23rd of January, though mine loo that are higher and produced a halo.
Best regards.
Eric,
Nice solar halo, Eric. Thanks for sharing.

Alfred


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