SolarChat!

AndrevdHoeven

I had the 75mm filter sent back to the US last summer and they concluded it was decontacted. They repaired it and today I was able to test it in double stack mode on my Lunt. I'm very happy with the result. Shown are an image with just my Lunt60 and one with the Lunt60 with the 75mm etalon in double...

AndrevdHoeven

I worked a bit more on the solar disk. Got some more details out. I especially like the very small faint detached prom in the ENE part of the image.

: sundisk_halpha_24062023-weak.jpg (5.15 MiB) Viewed 262 times

: sundisk_halpha_24062023-weak annot.jpg (6.66 MiB) Viewed 262 times

AndrevdHoeven

Our sun as images yesterday with my Lunt 60.
The animation was taken during 2,5 hours...

: sundisk_halpha_24062023-logo.jpg (4.85 MiB) Viewed 448 times

AndrevdHoeven

Some images I made today and yesterday using my Lunt 60Tha with ASI174mm. Thanks for watching!

: sundisk_halpha_11062023.jpg (3.72 MiB) Viewed 225 times

: sundisk_halpha_11062023-normal.jpg (2.91 MiB) Viewed 225 times

: Sundisk_10062023_ha-inv.jpg (4.04 MiB) Viewed 225 times

AndrevdHoeven

Here are some images I made in the past few weeks with my Lunt 60 and ASI174mm. I hope you like them... 08-04-2023 Sundisk_08042023_blue.jpg 22-05-2023 sundisk_halpha_22052023 v2.jpg 27-05-2023 sundisk_halpha_27052023.jpg 30-05-2023 https://youtu.be/ziC4_YDXP7o 04-06-2023 Sundisk_04062023_color_inve...

AndrevdHoeven

This image I took 2 weeks ago, but didn't have time to post yet. I really liked the fantastic prom that floated above the solar disk... Made with my Lunt 60, powermate 2,5x and ASI174mm. For the first time I used a bit of tilt to get rid of Newton rings I always hassle with and it worked great. So t...

AndrevdHoeven

Ah, I have to update my signature

That was a model from a local reseller here. Probably just branded.

AndrevdHoeven

Here is my result from yesterday's imaging session. I had big trouble getting the images properly aligned somehow. Photomerge just refused to work with them

Lunt LS60Tha - ASI174mm - Powermate 2,5x

: sundisk 08022023.jpg (2.9 MiB) Viewed 357 times

AndrevdHoeven

This image I made yesterday during a short clear period.

It's a mosaic of 6 movies of 4000 frames, 20% used, taken with my Lunt 60 THa with a 2,5x powermate.

: Sun_halpha_28012023.jpg (3.99 MiB) Viewed 334 times

AndrevdHoeven

This image is an experiment I did using data from the GONG h-alpha network. I wanted to show the development of some solar filaments that I also imaged myself in July last year and that showed a very nice development in the days they were visible. I gathered data from the period from 4th of July unt...

AndrevdHoeven

Here it is:

: Sun_disk_ha_14072022-bw.jpg (2.23 MiB) Viewed 457 times

AndrevdHoeven

Thanks a lot everybody!

AndrevdHoeven

Wow, today the results of the optolong astrophotography competition were announced today and I was surprised to see I got 2nd place in the solar system category. I'm really so happy with this result... This is the image I won with: Solarsystem-SunHalpha-andrevanderhoeven-thenetherlands.jpg The image...

AndrevdHoeven

Playing with some data 🙂 On July 14 I took the picture below of the sun and wanted to play a bit with it to make a nice picture of it. I found the LASCO data from the SOHO satellite photographing the corona. This is the corona data from the same moment as my own recording combined in an artistic ver...

AndrevdHoeven

Here is the animation that came out. As I said not too much activity, but still nice.

AndrevdHoeven

Beautiful shot! You might try reducing the time between frames on your animation to see if that shows movement better, I find sometimes that is the only way to tell that something is actually happening! I had 1 minute intervals. There was some motion in the prom but the surface was very calm. Some ...

AndrevdHoeven

Originally I planned to make an animation and took 1,5 hours of images. But after processing it showed activity in this region was very subtle and almost non. So I decided to just process a single image of the animation which was the best. This is the result using a TMB92 / Lunt LS75 / ASI174mm. Tha...

AndrevdHoeven

I don't know the exact color to be honest. Just copied it from an earlier picture that I made. I always use content aware filling for the background layer, so there comes a small gradient from. I like that more than a single color

AndrevdHoeven

And some shots from yesterday.

: Sun_prom_03082022.jpg (383.14 KiB) Viewed 1172 times

: sun_disk_ha_03082022.jpg (3.2 MiB) Viewed 1172 times

AndrevdHoeven

And some shots from yesterday.

: Sun_prom_03082022.jpg (383.14 KiB) Viewed 353 times

: sun_disk_ha_03082022.jpg (3.2 MiB) Viewed 353 times

AndrevdHoeven

Today I was aware of the huge prom, but clouds were playing a game with me. Just 1 hour before the sun was getting behind my house I had luck and could still make some images. It was already in the final phases when the prom was getting detached. So I was lucky :) it was over 150.000 km high so I wa...

AndrevdHoeven

Today I was aware of the huge prom, but clouds were playing a game with me. Just 1 hour before the sun was getting behind my house I had luck and could still make some images. It was already in the final phases when the prom was getting detached. So I was lucky :) it was over 150.000 km high so I wa...

AndrevdHoeven

On the 16th of July I had captured the huge prom at the SW limb. I wanted to play around with a bit to 'give the image a bite'. Somehow I like this view. It gives a sense of depth and action to it... What do you guys think of it? I know it's not a regular processing, and it was not intended as such ...

AndrevdHoeven

I've done some imaging again and I see the following issue which I can't grab completely yet. This is an image with just the ASI174, powermate and the Lunt-60. I noticed already in my processing and also in the movies taken a sort of banding (see image). I have extremely stretched this image just to...

AndrevdHoeven

I'm trying to get it tuned as it is now. But the banding is terrible. However I rotate it or change the tilt it keeps having dark and bright bands. Just impossible to get an equal brightness across the field. So I'll look at the solution that was given. Mmm, just looked and I have about 2cm between ...

AndrevdHoeven

I'm going to look at this. Very interesting! First I have to get very clear what I exactly need to do. It's 90% clear to me but not fully yet. Where do I exactly need top put the bearing, washers etc and in which order?

AndrevdHoeven

Some results from today. I used my TMB92 with a Herschel prism to also shoot some whitelight imagery. Unfortunately the mosaic didn't work out because of too much haze because of air-traffic (it's getting worse every day it seems). I couldn't get the lightning equal and should have taken more images...

AndrevdHoeven

Very nice results! I sometimes wish for a larger solar scope

AndrevdHoeven

I tried that, but that's very hard to do. Somehow to get them tuned properly leaves a very small area with good detail

AndrevdHoeven

I have a dilemma. I own a Lunt-60 THa and also have a 75mm Lunt etalon (it's a rare one :) ). Today I took the opportunity to put the etalon on my TMB-92 and see if that could work well with the etalon as a solar ha-telescope. I used it with the B1200 from my lunt 60. I took images of the same part ...

AndrevdHoeven

Image of the sun today in H-alpha (lunt 60 - 2,5x barlow - ASI174mm) Sun_disk_ha_16072022.jpg What was very nice to see the aftermath of the filament explosion of yesterday. Below some imagery and also some SOHO images to show what happened. Filament_eruption_15072022.jpg Filament_eruption_15072022....

AndrevdHoeven · Re: Ha full disk 14-07-2022 Thanks!

Thanks!

AndrevdHoeven

Very nice! You were a few hours before me it seems

Very good result with plenty of details. Result to be proud of.

AndrevdHoeven

Nice solar activity at the moment. This disk is a mosaic of 6 images made with my lunt-60 and powermate 2,5x. Full image field with an ASI174mm gives 16Gb/min, resulting in 96Gb for this image :) Full resolution: https://www.flickr.com/photos/avdhoeven/52215721592/sizes/o/ Sun_disk_ha_14072022.jpg

AndrevdHoeven

Finally the sun is getting more and more active again. Time to get my Lunt-60 back into action :) This image was taken with the Lunt and an ASI174. Nice thing of this combination is that you can take the sun in a single frame. I use it with my macbook with a highspeed ssd attached and in this way I'...

AndrevdHoeven

I do agree fully with you Alexandra. To share the experience is very nice for sure!

AndrevdHoeven

The full scale images can be seen via this link: http://www.astro-photo.nl/uncategorized/total-eclipse-2017-the-experience By now it's already 5 weeks ago that the Total Solar Eclipse took place in the US which millions of people looked forward to for a long time. Now I'm finally finished with proce...

AndrevdHoeven

This image is an further work on a previous image that I released last week. After finding that it was possible to bring out details of the lunar limb using the imagery made during the total eclipse I started looking a bit further into the topic. It showed that there is very nice software from the I...

AndrevdHoeven

Amazing work Andre, it matches very well indeed, superb science :) so now you can name the mountains that caused the beads? :bow :hamster: Alexandra I even got a request from the maker of the software package to use the images to do some scientific measurements :) Always like something like that...

AndrevdHoeven

That is definitely possible. I already was looking at that

AndrevdHoeven

A while ago I saw a post from Pete Lawrence from BBC Sky at Night on Facebook in which he showed that you can see the lunar limb profile in the images from the Baily beads taken during the solar eclipse. When I started making an beads sequence I remembered this post and thought it was worthwhile to ...

AndrevdHoeven

This image shows an a so-called Pellett processing of the Solar Corona during the last eclipse as made in Teton Village, WY. I made about 22 images using several exposures to try to catch the complete corona during the eclipse and the surrounding star field. The equipment used for this image was a N...

AndrevdHoeven

Lately I have been finally picking up pace with the Sun again. I bought an ASI174mm and now I can shoot the full disk with my Lunt 60. That makes life so much easier :) Here are some images of the transit and a time-lapse... https://vimeo.com/166129151 And here are the images: Transit_multiple.jpg s...

AndrevdHoeven · Sun 16-04-2015 H-alpha The sun today with my Lunt-60 in H-alpha:

The sun today with my Lunt-60 in H-alpha:

AndrevdHoeven

Thanks everybody! Nice to be back

AndrevdHoeven

The sun today taken in H-alpha with a Lunt 60mm solar telescope... Taken just before it dissappeared behind my house through some thin cloud layers. Very happy with this one, as it is my first solar image since October 2014... In the mean time we had the dark, cloudy ages here... sundisk_ha_12042015...

AndrevdHoeven

Today I had the opportunity to further use my new solar setup. It consists of a TMB92 with a Lunt LS75Ha etalon.

The image was made with a 2.5x power mate and a DMK21-618.

AndrevdHoeven

Hi everybody,

It seems like ages since I took my last solar image. Recently I obtained a TMB92 and yesterday I put my Lunt LS75 with a BF1200 on it. I have to say the view was very nice. Here is the mosaic I made in two color styles:

AndrevdHoeven

These are very, very nice. Would love to see an animation of them...

AndrevdHoeven

Very nice images! Crisp and clear...

Search found 142 matches