Search found 373 matches

by Wah
Mon Nov 18, 2013 2:47 am
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: 20131117 Spectrohelioscope CaK Full Sun !!!
Replies: 11
Views: 1724

Re: 20131117 Spectrohelioscope CaK Full Sun !!!

Thank you all!

Here is another process trial, and manually remove the background light.
by Wah
Sun Nov 17, 2013 12:32 pm
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: 20131117 Spectrohelioscope CaK Full Sun !!!
Replies: 11
Views: 1724

Re: 20131117 Spectrohelioscope CaK Full Sun !!!

Yes, the raw stacked frame is distorted. I need to use Photoshop transform functions to make it round.

Here is the H-alpha version this morning.



Quite lots of clouds most of the time.


Distorted stacked raw
by Wah
Sun Nov 17, 2013 2:47 am
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: 20131117 Spectrohelioscope CaK Full Sun !!!
Replies: 11
Views: 1724

20131117 Spectrohelioscope CaK Full Sun !!!

20131117 Spectrohelioscope CaK Full Sun !!!

This is the first successful trial on CaK band, although the quality and resolution is not high, active regions still can be seen, I am still very excited~ :rockon: :rockon: :rockon: :rockon:


by Wah
Sat Nov 16, 2013 10:34 am
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: 20131115 Spectrohelioscope First Light~!
Replies: 15
Views: 1562

Re: 20131115 Spectrohelioscope First Light~!

Another processing approach, and try to bring more details to the filaments and active regions.


This is the raw "stacked" result.
by Wah
Sat Nov 16, 2013 9:11 am
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: 20131115 Spectrohelioscope First Light~!
Replies: 15
Views: 1562

Re: 20131115 Spectrohelioscope First Light~!

My spectrohelioscope first light full sun image is born finally!

by Wah
Sat Nov 16, 2013 9:09 am
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: Question: Any tutorial pages for creating digital spectrohelioscope solar images?
Replies: 7
Views: 1743

Re: Question: Any tutorial pages for creating digital spectrohelioscope solar images?

I finally use C# to write a simple program to do the job, and only work for very straight spectral lines :oops: :oops: :oops:

My program seems quit low efficient, it takes minutes to combine the image and consume lots of RAM.
How is the performance of IRIS?
by Wah
Fri Nov 15, 2013 12:26 pm
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: 20131115 Spectrohelioscope First Light~!
Replies: 15
Views: 1562

Re: 20131115 Spectrohelioscope First Light~!

Can you find the prominence in this larger image? :P


by Wah
Fri Nov 15, 2013 9:23 am
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: Question: Any tutorial pages for creating digital spectrohelioscope solar images?
Replies: 7
Views: 1743

Re: Question: Any tutorial pages for creating digital spectrohelioscope solar images?

After some trial, I can export the avi to bmp files.
But I am not able to use the combine software in my WinXP machine. I have tried to read the tutorial and also tried the button in the program, but failed.

Are there any other softwares can do the same job?
Thank you!
by Wah
Fri Nov 15, 2013 2:47 am
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: 20131115 Spectrohelioscope First Light~!
Replies: 15
Views: 1562

20131115 Spectrohelioscope First Light~!

Captured the video before going to work this morning.
I can see tiny prominence in the raw spectrum!
That was so exciting~! :woohoo: :woohoo: :woohoo: :woohoo:






by Wah
Mon Nov 11, 2013 8:27 am
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: Question: Any tutorial pages for creating digital spectrohelioscope solar images?
Replies: 7
Views: 1743

Re: Question: Any tutorial pages for creating digital spectrohelioscope solar images?

I am also using Win7.
If Win7 doesn't work + there is no other options, I may try it in the WinXP virtual PC :P :P
by Wah
Mon Nov 11, 2013 3:52 am
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: Question: Any tutorial pages for creating digital spectrohelioscope solar images?
Replies: 7
Views: 1743

Question: Any tutorial pages for creating digital spectrohelioscope solar images?

I have finished my tiny spectrohelioscope recently and ready for the first light when the weather becomes fine. I have been searching for the answer in google and did't find any tutorial pages for creating digital spectrohelioscope solar images. Can anyone here teach me how? Thank you! Attached files
by Wah
Tue Oct 22, 2013 6:37 am
Forum: This is SolarChat !!
Topic: 20131020 LS80T filament animation
Replies: 4
Views: 157

20131020 LS80T filament animation

20131020 LS80T filament animation

(You may see higher resolution animation directly in YouTube.)

[video width=700 height=500 type=youtube]SCzTpp4rYTc[/video]

:P :P :P
by Wah
Fri Sep 27, 2013 7:53 am
Forum: Solar Scope Modifications
Topic: Red halo around Sun?
Replies: 5
Views: 1401

Re: Red halo around Sun?

Based on my past experience, it could be ERF problem......
by Wah
Tue Sep 24, 2013 2:01 am
Forum: This is SolarChat !!
Topic: 20130921 LS80T big prom
Replies: 8
Views: 590

Re: 20130921 LS80T big prom

Thanks all!

swisswalter, I have never left here, but just had no chance to capture images of the sun recently. Also, I don't have a CaK solar scope, I need to find a cheap 2nd-hand one~
by Wah
Sun Sep 22, 2013 2:46 pm
Forum: This is SolarChat !!
Topic: 20130921 LS80T big prom
Replies: 8
Views: 590

20130921 LS80T big prom

by Wah
Thu Aug 29, 2013 4:28 pm
Forum: This is SolarChat !!
Topic: Venus Transit Animation
Replies: 6
Views: 354

Re: Venus Transit Animation

Thanks for the waiting.
The distortion around the Venus should be not by the atmosphere of Venus, but the motion of Venus.
When the software tried to align the edge of the Venus, the motion will cause blurred background (solar surface).
by Wah
Thu Aug 29, 2013 8:43 am
Forum: This is SolarChat !!
Topic: Venus Transit Animation
Replies: 6
Views: 354

Venus Transit Animation

Venus Transit Animation
Old images but newly processed, hope you like it.

by Wah
Sat Aug 10, 2013 10:25 am
Forum: Solar Astronomy Shop and Swap
Topic: FS: Supercharged PST with PST Mod Equipment
Replies: 13
Views: 4975

Re: FS: Supercharged PST with PST Mod Equipment

I'm interested in this:
$250 for the BF10

Do you sell it seperately? :woohoo:
by Wah
Wed Jul 31, 2013 6:23 am
Forum: Solar Astronomy Shop and Swap
Topic: Coronado PST-Calcium-K with case and tripod on Ebay
Replies: 20
Views: 9617

Re: Coronado PST-Calcium-K with case and tripod on Ebay

Where can we buy a new 60mm Lunt CaK/B600 scope for that?
by Wah
Tue Jul 02, 2013 2:56 am
Forum: Solar Astronomy Shop and Swap
Topic: For Sale: JAI BM-500GE GigE camera (2546X2048@15fps)
Replies: 6
Views: 3218

Re: For Sale: JAI BM-500GE GigE camera (2546X2048@15fps)

Dear Danco, JAI provides a software that can have full control to the camera and also save image series as RAW/TIF. It also provide SDK for end user to create their own applications. I have made an application based on SDK, and it is quite fit for me to capture solar and lunar images. The output fil...
by Wah
Tue Jun 25, 2013 6:34 am
Forum: Solar Astronomy Shop and Swap
Topic: For Sale: JAI BM-500GE GigE camera (2546X2048@15fps)
Replies: 6
Views: 3218

Re: For Sale: JAI BM-500GE GigE camera (2546X2048@15fps)

Thank you, Walter!

Are you interested in it?
by Wah
Sun Jun 09, 2013 10:38 pm
Forum: This is SolarChat !!
Topic: 20130601 C8 Sun Mosaic
Replies: 3
Views: 187

20130601 C8 Sun Mosaic

20130601 C8 Sun Mosaic
The seeing was not so good, so I have to size down the image for better view.

by Wah
Wed May 29, 2013 1:10 am
Forum: This is SolarChat !!
Topic: 201305124 LS80T Sun
Replies: 14
Views: 922

Re: 201305124 LS80T Sun

Dear Montana,
I didn't capture the proms and surface separately, they are from the same video with some curve adjustment.

Dear eroel,
Please check your email.

Thank you all above!
by Wah
Tue May 28, 2013 5:59 am
Forum: This is SolarChat !!
Topic: 201305124 LS80T Sun
Replies: 14
Views: 922

Re: 201305124 LS80T Sun

The camera is JAI BM-500GE, a B/W camera which can capture 5MP@15fps.

I have extra one for sale, price US980.
by Wah
Mon May 27, 2013 1:13 am
Forum: This is SolarChat !!
Topic: 201305124 LS80T Sun
Replies: 14
Views: 922

Re: 201305124 LS80T Sun

It seems the forum has changed the above image to a larger size with less details version.
This is a lower res. but more sharpening version, hope you like it:
http://www.hkastroforum.net/files/20130 ... ss_131.jpg
by Wah
Sat May 25, 2013 5:30 pm
Forum: This is SolarChat !!
Topic: 201305124 LS80T Sun
Replies: 14
Views: 922

201305124 LS80T Sun


201305124 LS80T Sun
by Wah
Mon May 06, 2013 11:39 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Higher Resolution Camera Than DMK41
Replies: 2
Views: 698

Re: Higher Resolution Camera Than DMK41

Do you consider this?
JAI BM-500GE GigE camera (2546X2048@15fps)
http://solarchat.solarastronomy.org/ind ... x204815fps
by Wah
Tue Apr 30, 2013 7:40 am
Forum: Solar Astronomy Shop and Swap
Topic: For Sale: JAI BM-500GE GigE camera (2546X2048@15fps)
Replies: 6
Views: 3218

For Sale: JAI BM-500GE GigE camera (2546X2048@15fps)

JAI BM-500GE GigE B/W camera 8bit: 2546X2048@15fps 12bit: 2546X2048@12fps Using Sony ICX625 CCD, super high resolution and high QE (peak >60%) Perfect for solar and lunar imaging. The attached Lunar image is a mosaic of 9 frames, 50% resized already! Newly brought in great condition with less than h...
by Wah
Mon Mar 11, 2013 8:28 am
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: My newly DIY spectroscope and first light
Replies: 9
Views: 2246

Re: My newly DIY spectroscope and first light

Merlin66, I have been waiting for Surplus Shed slit for several months... I will try the blades with magnet later. The collimation for this toy is not so easy, the sharpness of the spectrum lines are not good and not even, I think I will try to use laser light to help collimation later. Can you send...
by Wah
Mon Mar 11, 2013 6:50 am
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: My newly DIY spectroscope and first light
Replies: 9
Views: 2246

Re: My newly DIY spectroscope and first light

I don't know how to make a good metal slit, so I just use a piece of paper to make a temp slit.
I think I will find a metal one and replace current slit.

I got a 30mm x 30mm grating from a China surplus shop and don't have its detail spec, I guess around 600g/mm
by Wah
Sun Mar 10, 2013 10:57 pm
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: My newly DIY spectroscope and first light
Replies: 9
Views: 2246

My newly DIY spectroscope and first light

My newly DIY spectroscope and first light

Attached files
by Wah
Wed Feb 06, 2013 12:22 am
Forum: Solar Astronomy Shop and Swap
Topic: CORANADO Ca K SCOPE ON EBAY
Replies: 43
Views: 6429

Re: CORANADO Ca K SCOPE ON EBAY

I guess the bidder is from seller…
by Wah
Tue Jan 01, 2013 3:39 pm
Forum: This is SolarChat !!
Topic: Contacting 2 pieces of glass (video)
Replies: 4
Views: 461

Contacting 2 pieces of glass (video)

You much see this video if you are trying to recontact your etalon.
The 2 pieces of glass stick together automatically!
http://vimeo.com/6654588
by Wah
Tue Nov 20, 2012 3:27 pm
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: ADJUSTABLE OPTICAL SLIT from surplusshed are on stock!
Replies: 9
Views: 1677

Re: ADJUSTABLE OPTICAL SLIT from surplusshed are on stock!

Out of stock, have to wait for 2 months! :blink:
by Wah
Tue Nov 20, 2012 3:56 am
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: ADJUSTABLE OPTICAL SLIT from surplusshed are on stock!
Replies: 9
Views: 1677

Re: ADJUSTABLE OPTICAL SLIT from surplusshed are on stock!

Is this slit better than a homemade one? In which way? Thanks!
by Wah
Tue Nov 20, 2012 3:55 am
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: ADJUSTABLE OPTICAL SLIT from surplusshed are on stock!
Replies: 9
Views: 1677

Re: ADJUSTABLE OPTICAL SLIT from surplusshed are on stock!

Is this slit better than a homemade one? In which way? Thanks!
by Wah
Fri Nov 16, 2012 1:57 pm
Forum: Solar Scope Modifications
Topic: Solar H alpha with eBay filters
Replies: 98
Views: 11955

Re: Solar H alpha with eBay filters

I can find the filters have been relisted now!
by Wah
Thu Nov 15, 2012 12:46 am
Forum: Solar Scope Modifications
Topic: Recontacting Etalons
Replies: 52
Views: 8426

Re: Recontacting Etalons

Is there anyone know the price of repairing a decontacted etalon?
Or is there anyone here can provide recontacting etalon service? B) B)
by Wah
Wed Nov 14, 2012 11:31 pm
Forum: Solar Scope Modifications
Topic: Solar H alpha with eBay filters
Replies: 98
Views: 11955

Re: Solar H alpha with eBay filters

It seems the 0.1nm filter pair is sold out, will there be more in the future?
by Wah
Tue Nov 13, 2012 11:20 pm
Forum: Solar Scope Modifications
Topic: Solar H alpha with eBay filters
Replies: 98
Views: 11955

Re: Solar H alpha with eBay filters

May I know if a blocking filter is neceasary after using this Omega filter pair?
by Wah
Sun Nov 11, 2012 3:38 pm
Forum: This is SolarChat !!
Topic: 201201110 Prominence Tornado
Replies: 7
Views: 863

201201110 Prominence Tornado

201201110 Prominence Tornado
by Wah
Mon Nov 05, 2012 8:22 am
Forum: Solar Astronomy Shop and Swap
Topic: Compact Littrow Spectrohelioscope - Any interest in an "IKEA" Kit???
Replies: 38
Views: 5228

Re: Compact Littrow Spectrohelioscope - Any interest in an "IKEA" Kit???

Is this spectrohelioscpoe under construction?
Is the size small and light enough for most equatorial mount?
by Wah
Sun May 06, 2012 4:01 am
Forum: This is SolarChat !!
Topic: 20120429 C8 White Light Sun with ASI130MM
Replies: 9
Views: 857

Re: 20120429 C8 White Light Sun with ASI130MM

Thank you Merlin, I think the most difficult part for me to do the mod is to find a cheap large (>150mm) ERF / red filter.
It would be great if you can point me the right direction :woohoo: :woohoo: :woohoo:
by Wah
Sat May 05, 2012 10:44 am
Forum: This is SolarChat !!
Topic: 20120429 C8 White Light Sun with ASI130MM
Replies: 9
Views: 857

Re: 20120429 C8 White Light Sun with ASI130MM

Thank you all for your welcome!
I'm planning to mod my PST and will need your help in the future.
by Wah
Tue May 01, 2012 2:16 am
Forum: This is SolarChat !!
Topic: 20120429 C8 White Light Sun with ASI130MM
Replies: 9
Views: 857

20120429 C8 White Light Sun with ASI130MM

20120429 C8 White Light Sun with ASI130MM http://www.hkastroforum.net/files/20120429_whitesun_crop1_107.jpg http://www.hkastroforum.net/files/20120429_whitesun_crop2_296.jpg http://www.hkastroforum.net/files/20120429_whitesun_crop3_152.jpg http://www.hkastroforum.net/files/20120429_whitesun_crop4_10...