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Thought of as a collection of millions of "pinhole" images all bend) the solar images to all fall on top of each Your paper, and you put little lenses in front of each hole to
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What do you think would happen if you punched a thousand holes in What you are seeing is not just a dot of light coming through the hole,Įxperiment by making your holes larger or smaller. Move your other piece of paper back and forth until the image looks best. Now, find the image of the Sun which comes through the hole. ( Don't look at the Sun either through the hole or in any other way! ) Go outside, hold the paper up and aim the hole at the Sun. With the pin, punch a hole in the center of one of your pieces This simple device is called a "pinhole camera".
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You can easily, cheaply, and safely observe the Sun by projecting it through a tiny Which you can access via the web to observe the Sun. Or, if you have your own telescope, you will The easiest and safest is to project the Sun by building There are many ways you can observe the Sun, and hopefully sunspots,įor yourself. The Sun through a telescope or in any other way, unless you have the proper filters.Ĭan one damage their eyes by looking directly at the Sun? In effect, it is a virtual observatory," says Müller.Observing the Sun for Yourself Observing the Sun for Yourself "The goal of JHelioviewer, and the Helioviewer Project as a whole, is to offer intuitive interfaces to large datasets from many different sources.
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It also allows data to be annotated, say, solar flares of a particular magnitude to be marked or diseased tissues in medical images to be highlighted. This is because JHelioviewer does not need to download entire datasets, which can often be huge - it can just choose enough data to stream smoothly over the Internet. The code can even be reused for other purposes it is already being used for Mars data and in medical research. It is open-source software, meaning that all its components are freely available so others can help to improve the program. JHelioviewer is written in the Java programming language, hence the 'J' at the beginning of its name.
#JHELIOVIEWER ONLINE ARCHIVE#
This is an interactive visual archive of the entire SOHO mission." With JHelioviewer, everyone can do this in minutes.
#JHELIOVIEWER ONLINE MOVIE#
"Before, it took hours to combine images from different telescopes to make a movie of the Sun for a given period. "We wanted to make it easy to view solar images from different observatories and instruments, and to make it easy to make movies," says Daniel Müller, ESA SOHO Deputy Project Scientist. They can export their finished movies in various formats, and track features on the Sun by compensating for solar rotation. Using this new software, users can create their own movies of the Sun, colour the images as they wish, and image-process the movies in real time. The downloadable JHelioviewer is complemented by the website, a web-based image browser. More than a million images from SOHO can already be accessed, and new images from NASA's Solar Dynamics Observatory are being added every day. Developed as part of the ESA/NASA Helioviewer Project, it provides a desktop program that enables users to call up images of the Sun from the past 15 years.
#JHELIOVIEWER ONLINE SOFTWARE#
JHelioviewer is new visualisation software that enables everyone to explore the Sun.