100 Hours SunDay
UPDATE: The 100Hours already occured. Check out the official webpage for reports.
It was a great overwhelming success. Thank you!
And remember the IYA2009 is not over!
It consists of a wide range of public outreach activities, live science center, research observatory webcasts and sidewalk astronomy events. Events are mainly focused on the wonders of the starry night, but there are also events all around the world to observe the crescent Moon for early observer, and of course daytime observations of the Sun.
And Sunday might perfectly be the best day for a solar event. Star parties on Sunday are difficult since everyone has to get up early for school or work. Let´s enjoy the Sunday, when everyone has free time and kids and adults can all enjoy the near but forgotten Sun and its wonders. Either get up early to start with a nice sunrise, go for a walk on the afternoon or enjoy a wonderful sunset. On the meantime you can participate on a 100 hours solar event. Ask your local astronomy center for more information. If you are an astronomy center, let´s organize one event!. There is no need to restrict it to the Sun, you can event start at sunset and continue with some star gazing…
Let the last day of 100 Hours be the Sun day, not just a Sunday.
For that reason, this page, and on the 100 hours website, we will be encouraging and helping everyone to organize their solar events this day. Here you can find, ideas, resources, experiments. Leave us our comments or ask us any question you might have.
- Always when observing the Sun, follow and educate everyone with safety instructions.
- Set up a telescope with a Solar filter, withe white light of H-Alpha.
- Create a pinhole camera to image the Sun, or better make a workshop to build your own pinhole camera.
- Talk, talk, talk. There are many many topics to talk about our Sun. Speaking about any of them, keeping the live shining reference above us, greatly helps to put closer the wonders and distant worlds of Astronomy. See below for a tentative lists of topics.
- There are many experiments to carry on, like
Measuring the Sun size, and others.
- Make a solar system play with kids (to talk about distances, speeds, sizes, space missions, …
- Construct an spectrometer with a CD.
- Show the photoelectric effect, use sun panels, talk about Solar energy.
- Make coordinated pairs of observations around the world to measure the Sun-Earth distance, or the Earth radius.
Take a look on our resources sections, there you can find links th more activities and experiments, as well as links with even more activities.
Indoors or outdoors, a thematic talk can be a very instructive idea. You can decide to do it just with your voice, or use media materials, like photos or videos (see below for references)
- Scales of the Sun, its dimensions, distances, inner parts, …
- Safety and the Sun. Observing the Sun, UV light, …
- Living on the Sun´s atmosphere, influences and safety and dangers due to the heliosphere.
- Space Weather: How the Sun can greatly influence the Earth. Magnetic storms, effects on technology, past solar maxima, dangers and protecting of the Earth´s magnetosphere.
- Current research efforts, satellites observing and serving live image of the Sun from many viewpoints.
- Current biggest misteries of the Sun, like the coronal heat.
- Use the Sun to talk about the life of a star.
- Talk about anecdotes related to the Sun, like the Carringtongs flare, the nuclear false positive, the little-ice age, Vancouver black out, telegraphy on the Sun batteries, proof of Einstein theories during an eclipse, the discovery of the Helium, …
- The Sun in history (from nature, life, to mythology, astrology, … )
- What if? cases: How would humans look like, or exists, if the Sun, were a bit bigger, closer, fainter, more active, calm, emitting more in X-rays or infrareds than on “Visible”, had a companion, Jupiter as a Sun…
- The brother Sun: The Sun and us, we all come from the same dust of a previous father Star.
- Ask an astronomer: Open tables to talk about the skies