- A webcam Philips ToUCam Pro 2 in color
- A TeleVue 3x barlow lens
With this astronomy video, you can learn about the processing of color videos. This also demonstrates how dust spots that appear on the video are automatically removed by the processing (no need to do a flat-field).
+ Good image quality
(seeing was quite good)
- Residual dust
(easy to remove)
Rubric: astronomy
|
Click on the thumbnail to see a raw image of the video...
File 'marsl1.rar' of 19 Megabyte, corresponding to 1.5 minutes of video and being hosted by 'Driveway' (I don't host the video directly on my website because of a lack of sufficient bandwidth)...
How to download the video
The video Number of clicks : 1767
Equipment used:
- A telescope Meade LX200 GPS 10'
- A webcam Philips ToUCam Pro 2 in color
- A TeleVue 3x barlow lens
- A tele-extension to enlarge the image.
You will need to use the technique of flat-fielding to remove any dust spots that appear on the images.
First video
+ Good video, easy to process
- Artefact
(at the right of the globe)
Rubric: astronomy
|
Click on the thumbnail to see a raw image of the video...
ATTENTION: The video is in black and white (to obtain better images). The output image you get will then be combined with
a color image (eg this one: here) in a specialized software, eg Photoshop using the technique of layers explained here.
How to download the video
The video Number of clicks : 3532
If you don't have Winrar, you can download it here :
Click here
(http://www.download.com/WinRAR/3000-2250_4-10007677.html)
Or here
(http://en.softonic.com/s/winrar)
Equipment used:
- A telescope Meade LX200 GPS 10'
- A webcam Vesta Pro with a 1/3' b&w sensor
- A TeleVue 3x barlow lens
- A tele-extension
Astronomy tutorial essential to deal with a planetary video in B & W:
Click here
+ Very good video
- Difficult to process (dust) Rubric: astronomy
|
Click on the thumbnail to see a raw image of the video...
ATTENTION: The video is in black and white (to obtain better images). The output image you get will then be combined with
John Gray Mars Venus
a color image (eg this one: here) in a specialized software, eg Photoshop using the technique of layers explained here.
The astronomy videos are freely hosted on 'Rapidshare' (I don't host them directly on my server, due to a lack of sufficient bandwith). The links below open a new window. Then just click on 'free' and wait a few seconds to download the video. Once you have downloaded a video, you have to wait some time before you can download another part. This restriction is compensated by the free service and it is worthwhile to be patient.
How to download the video
The video Number of clicks : 1976
- If you don't have Winrar, you can download it here :
Click here
(http://www.download.com/WinRAR/3000-2250_4-10007677.html) Or here
(http://en.softonic.com/s/winrar)
Equipment used:
- A telescope Meade LX200 GPS 10'
- A webcam Vesta Pro with a 1/3' b&w sensor
- A TeleVue 3x barlow lens
- A tele-extension
With this Astro video, you'll be able to learn the technique of flat-field with Iris, thanks to the command 'flat'. I was very surprised to get a beautiful output image, while I used the b&w web cam for the second time only. The atmosphere was stable and unfortunately, I noticed some fine dust spots on the sensor. Fortunately, they can be removed with the flat-field image. It's a good exercise, because it is important to be able to divide an avi video by a flat, because the sensors can still be affected by dust. Of course, the best solution is to clean the sensor (that's what I have done since then), but you will anyway have to master the technique of flat-field... so why don't do this right now?
Here is the instruction manual for Iris:
Iris
Doing a flat-field with Iris:
Skyimaging's tutorial
A flat-field image and the corresponding flat-field video (useful if you want to remove dust) made with a white sheet and the telescope:
FLAT 1 (.bmp image)
And another made with Iris, in order to remove dust:
FLAT 2 (.bmp image)
Fast processing with Iris of an 'avi' file of a planet, but less efficient than the manual method:
Click here
(function compute_trichro1)
Astronomy tutorial essential to deal with a planetary video in B & W:
Click here
Full version with satellites here
Click on the thumbnail to see a raw image of the video...
|
+ Exceptional quality for a video in color
(excellent seeing)
- RGB channels difficult to add perfectly together.
Rubric: astronomy
The website of Marc |
The videoNumber of clicks : 2616
(direct-downloading on the server of Marc)
The astronomy videos are freely hosted on 'Rapidshare' (I don't host them directly on my server, due to a lack of sufficient bandwith). The links below open a new window. Then just click on 'free' and wait a few seconds to download the video (90Mb, 50' of duration). Once you have downloaded a video, you have to wait some time before you can download another part. This restriction is compensated by the free service and it is worthwhile to be patient.
How to download the video Download Film Mars Met Venus Full Movie Lk21
The video
Equipment used:
- A telescope Meade LX200 GPS 10'
- A webcam Philips ToUCam Pro 3 in color
- A TeleVue 3x barlow lens
+ Good image quality
- Noisy video
Rubric: astronomy |
Click on the thumbnail to see a raw image of the video...
The astronomy videos are freely hosted on 'Driveway' (I don't host them directly on my server, due to a lack of sufficient bandwith).
How to download the video
The video Number of clicks : 1513
Astronomy tutorial essential to deal with a planetary video in B & W:
Click here
Equipment used:
- A telescope Meade LX200 GPS 10'
- A webcam Vesta Pro with a 1/3' b&w sensor
- A TeleVue 3x barlow lens
- A tele-extension
First video
© Christophe Pellier
+ Good image quality (seeing estimated to 6/10 by Christophe)
+ The cloud bands are visible (very rare on Venus).
-> Venus : 14.7 of arc second, -2.6 of declination, height: 35-40°, phase: 74%.
Rubric: astronomy
The website of Christophe |
Click on the thumbnail to see raw images of the video...
As you can see it, the background of the sky on the raw images is bright because shots were made at twilight. To solve this problem, use this bmp image which represents the background of the sky/dark/offset. Don't forget to adjust the threshold during processing.
The astronomy videos are freely hosted on 'Driveway' (I don't host them directly on my server, due to a lack of sufficient bandwith).
Film Mars Met Venus Full Movie Download
How to download the video
The video Number of clicks : 1756
If you don't have Winrar, you can download it here :
Click here
(http://www.download.com/WinRAR/3000-2250_4-10007677.html)
Or here
(http://en.softonic.com/s/winrar)
Equipment used:
- A Cassegrain Astrotelescope 10' telescope at F/D 34
- A Lumenera SKYnyx 2-0 M camera, at 22 images/s
- A filter UV Schuler 365nm
Astronomy tutorial essential to deal with a planetary video in B & W:
Click here
First video : Tycho
© Video of Rolf Arcan & processed by Sebastien Leboutte
+ Very good video
+ Easy to process
Rubric: astronomy
The website of Rolf
|
Click on the thumbnail to see a raw image of the video...
John Gray Mars Venus Website
File 'tycho.rar' of 74 Megabyte, corresponding to 1 minute of video and being hosted by 'Rapidshare' (I don't host the video directly on my website because of a lack of sufficient bandwidth)...
How to download the video
The video Number of clicks : 1968
Equipment used: - A telescope Newton 400 F/D 4.5
- A webcam Philips ToUCam Pro
Astronomy tutorial essential to deal with a planetary video:
Click here
Second video : Clavius (mosaic composed of 4 individual images)
© Rolf Arcan
September 2006
Full version here !
|
+ Excellent image quality !
Rubric: astronomy
The website of Rolf |
The astronomy videos are freely hosted on 'Rapidshare' (I don't host them directly on my server, due to a lack of sufficient bandwith). The links below open a new window. Then just click on 'free' and wait a few seconds to download the video. Once you have downloaded a video, you have to wait some time before you can download another part. This restriction is compensated by the free service and it is worthwhile to be patient.
How to download a video?
Part 1 Number of clicks : 71287
| Part 2 Number of clicks : 1467
|
Part 3Clicks : 90589
| Part 4 Clicks : 1361
|
Equipment used- A telescope Newton 400 F/D 4.5
- A webcam Philips ToUCam Pro
Astronomy tutorial essential to deal with a planetary video:
Click here
Have fun and don't forget to send me your results if you can do better than me
(I do not know everything, I'm far from it!)
Feel free to send me an email if you can not download a video ...
If you get a window like this one below while downloading a video, don't panic! Rapidshare automatically removes videos if they were not downloaded for 90 days. Send me an email and I'll fix the problem as soon as possible.
Except for a few videos, all of the videos about the planets seen on this page have been made with a telescope Meade LX200 10 '(not a new LX200 ACF). The Headquarters of Meade is based in the USA and the firm shows a wide range of telescopes starting with the ETX, then the LX90 and finally the high-end LX200, with a good price for money ratio. The new version of the LX200 classic is the LX200 ACF, which differs from its brother by the optical formula. Indeed, the Meade LX200 ACF telescope is a pseudo coma-free Ritchey-Chretien while the old model is a Schmidt-Cassegrain. Thus, the new one is more suited to the photography of stars because it has a field of view without coma.
Astronomical telescopes at entry level seen on Meade's website are not particularly appreciated by the community of amateur astronomers: you can find plastic and the goto system - although effective - is not very useful because it operates on small aperture telescopes that can't solve details on the galaxies and other objects of the deep sky.
You'll no doubt have the opportunity to see many photos taken with Meade telescopes on the forums of astronomy. Without wishing to advertise for the brand Meade, I think that these telescopes (from Meade LX90 to LX200 ACF) have a large potential on ccd imaging and video. If you are photographing with this type of telescope, be aware that you'll be forced to limit the length of your exposures in order to avoid the field rotation effect which is inherent with alt-azimuth mounts. Fortunately, it is easily removed by a computer (see technical section of my site). For deep sky imaging, it is necessary to have a wedge placed below the fork mount.
Celestron is the direct competitor of Meade, but I'm not familiar with this brand, so I won't say anything about it.
I describe in more detail my views on Meade's astronomy equipment on this page.
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Discover the cosmos!Each day a different image or photograph of our fascinating universe isfeatured, along with a brief explanation written by a professional astronomer.
2020 December 11
Messier Craters in Stereo
Image Credit: Apollo 11, NASA;Stereo Image CopyrightPatrick Vantuyne Explanation: Many bright nebulae and star clusters in planet Earth's skyare associated with the name ofastronomer Charles Messierfrom his famous 18th century catalog.His name is also given to these two large and remarkable craterson the Moon.Standouts in the dark,smooth lunar Sea of Fertility or MareFecunditatis, Messier (left) and Messier A have dimensions of 15 by 8and 16 by 11 kilometers respectively.Their elongated shapes are explained by theextremely shallow-angle trajectory followed byan impactor, moving left to right, that gouged out the craters.The shallow impact also resulted in twobright rays of materialextending along the surface to the right, beyond the picture.Intended to be viewed withred/blue glasses (red for the left eye),this striking stereo picture of the crater pair was recently createdfrom high resolution scans of two images(AS11-42-6304,AS11-42-6305)taken during the Apollo 11 mission to the Moon.
Tomorrow's picture: wandering toward a Great Conjunction<| Archive| Submissions | Index| Search| Calendar| RSS| Education| About APOD| Discuss| > Authors & editors: Robert Nemiroff(MTU) &Jerry Bonnell (UMCP)
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