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Prominences & Filaments | HA & CaK | Feb 9th 2020

Posted: Sun Feb 09, 2020 5:49 pm
by MalVeauX
Heya,

Another clear day, but the seeing was poor for my area typically. Regardless it supported the image scale (0.5"/pixel) in both wavelengths with lucky imaging. Took a look at today's prominences, some faint ones, and some nice dark filaments. No real noteworthy surface features today otherwise. Earth scales provided for the prominences. Most of them are on the Eastern limb quadrants. Both chromospheres represented, the lower & upper via Ha & CaK.

Colored:

Image

Image

Image

Image

Image

Image

Image

Image

Image

Earth Scales:
EarthScale_01_02092020.jpg
EarthScale_01_02092020.jpg (230.59 KiB) Viewed 2471 times
EarthScale_02_02092020.jpg
EarthScale_02_02092020.jpg (152.54 KiB) Viewed 2471 times
B&W:

Image

Image

Image

Image

Image

Image

Image

Image

Image

Seeing Data (SSM):
SeeingConditions_02092020.jpg
SeeingConditions_02092020.jpg (118.69 KiB) Viewed 2473 times
Equipment:

120mm F10 Frac
Baader Red CCD-IR Block Filter (D-ERF) + PST Etalon + 10mm BF + ASI290MM
Baader Blue CCD-IR Block Filter (D-ERF) + Lunt CaK 1200 + ASI290MM
Solarsetup_02092020.jpg
Solarsetup_02092020.jpg (48.84 KiB) Viewed 2473 times
Very best,

Re: Prominences & Filaments | HA & CaK | Feb 9th 2020

Posted: Sun Feb 09, 2020 6:28 pm
by rsfoto
Hi Marty,

Good Close-Up images. Not much activity :(

Re: Prominences & Filaments | HA & CaK | Feb 9th 2020

Posted: Sun Feb 09, 2020 9:00 pm
by MAURITS
Great work Marty.

Re: Prominences & Filaments | HA & CaK | Feb 9th 2020

Posted: Mon Feb 10, 2020 3:53 am
by eroel
Marty:
A very fruitful session.
Best regards,
Eric.

Re: Prominences & Filaments | HA & CaK | Feb 9th 2020

Posted: Mon Feb 10, 2020 4:28 am
by JochenM
Nice work again.

Small question if you don't mind. Where exactly did you place the Blue CCD filter? The Lunt CaK module doesn't have any the possibility (at least mine doesn't) to thread it on.

Re: Prominences & Filaments | HA & CaK | Feb 9th 2020

Posted: Mon Feb 10, 2020 10:30 am
by Montana
All of them are delicious today Marty :hamster: :bow

Alexandra

Re: Prominences & Filaments | HA & CaK | Feb 9th 2020

Posted: Mon Feb 10, 2020 10:33 am
by Martin_S
Great Images ,as always Marty . Thanks for sharing them.

Martin

Re: Prominences & Filaments | HA & CaK | Feb 9th 2020

Posted: Mon Feb 10, 2020 11:22 am
by MalVeauX
JochenM wrote:
Mon Feb 10, 2020 4:28 am
Small question if you don't mind. Where exactly did you place the Blue CCD filter? The Lunt CaK module doesn't have any the possibility (at least mine doesn't) to thread it on.
I put a 35mm 2" extension in front of it, with the filter threaded on there. Inserted the Lunt filter into that.

I'm thinking of disassembling the Lunt filter though. I consider it imaging only, so I don't need any of its protection filters, whatever is in there, or at least the visually protective filters. Just enough to protect the filter itself but otherwise, I'd love to get rid of anything not needed, to help increase transmission. It's ok as it is, but it's a wonky filter to use since it's so large and so long with it's 2" barrel and whatever is in it.

Very best,

Re: Prominences & Filaments | HA & CaK | Feb 9th 2020

Posted: Mon Feb 10, 2020 12:35 pm
by JochenM
MalVeauX wrote:
Mon Feb 10, 2020 11:22 am

I put a 35mm 2" extension in front of it, with the filter threaded on there. Inserted the Lunt filter into that.

I'm thinking of disassembling the Lunt filter though. I consider it imaging only, so I don't need any of its protection filters, whatever is in there, or at least the visually protective filters. Just enough to protect the filter itself but otherwise, I'd love to get rid of anything not needed, to help increase transmission. It's ok as it is, but it's a wonky filter to use since it's so large and so long with it's 2" barrel and whatever is in it.

Very best,
That makes sense, thanks (couldn't make it out on the picture).

I was also quite surprised at the size of the Lunt CaK module when it arrived (or well, the 2" tube part that goes into the focuser at least). However, I'm not sure what purpose the silver filter (I'm sure you know what I'm referring to) on the front of the tube serves exactly. If it's just an ERF, then it shouldn't be an issue to remove it and replace it with whatever you want to use for that purpose. But if it's coated in some way to serve other purposes, then it might be tricky.

Re: Prominences & Filaments | HA & CaK | Feb 9th 2020

Posted: Mon Feb 10, 2020 3:40 pm
by MalVeauX
JochenM wrote:
Mon Feb 10, 2020 12:35 pm
MalVeauX wrote:
Mon Feb 10, 2020 11:22 am

I put a 35mm 2" extension in front of it, with the filter threaded on there. Inserted the Lunt filter into that.

I'm thinking of disassembling the Lunt filter though. I consider it imaging only, so I don't need any of its protection filters, whatever is in there, or at least the visually protective filters. Just enough to protect the filter itself but otherwise, I'd love to get rid of anything not needed, to help increase transmission. It's ok as it is, but it's a wonky filter to use since it's so large and so long with it's 2" barrel and whatever is in it.

Very best,
That makes sense, thanks (couldn't make it out on the picture).

I was also quite surprised at the size of the Lunt CaK module when it arrived (or well, the 2" tube part that goes into the focuser at least). However, I'm not sure what purpose the silver filter (I'm sure you know what I'm referring to) on the front of the tube serves exactly. If it's just an ERF, then it shouldn't be an issue to remove it and replace it with whatever you want to use for that purpose. But if it's coated in some way to serve other purposes, then it might be tricky.
I don't know for sure what all the glass is in the filter (Lunt CaK), but I'm pretty sure most of it is ERF and ITF for energy handling and visual safety. The CaK filter itself is just a single filter at 2.4A. But I don't know enough about whats in it. I do want to remove anything not needed though. I'm sure some of it is purposefully there for visual safety but not needed for imaging purposes. I consider it an imaging only filter for me and will never look through it.

Very best,

Re: Prominences & Filaments | HA & CaK | Feb 9th 2020

Posted: Mon Feb 10, 2020 5:48 pm
by DeepSolar64
Marty,

Thanks for the view I couldn't get yesterday. Awesome resolution!

James

Re: Prominences & Filaments | HA & CaK | Feb 9th 2020

Posted: Mon Feb 10, 2020 8:07 pm
by ffellah
Beautiful close-ups, Marty !

Franco

Re: Prominences & Filaments | HA & CaK | Feb 9th 2020

Posted: Mon Feb 10, 2020 9:03 pm
by marktownley
Very nice images Marty!

Re: Prominences & Filaments | HA & CaK | Feb 9th 2020

Posted: Fri Feb 14, 2020 8:11 am
by mattwastell
Excellent edge shots - a treat for a Sun starved observer!

Re: Prominences & Filaments | HA & CaK | Feb 9th 2020

Posted: Sat Feb 15, 2020 11:30 am
by salvo lauricella
Excellent work Marty!