Arduino Based Dew Controller

These are pictures of my first Arduino project that I’m working on with fellow Maker Sungjung. This is a dew controller with 6 outputs, a output for the fan, 2 temperatures sensors one for the mirror, one for measuring ambient temperature. There is also a humidity sensor. There is a 2×20 display for the information.

This prototype should be completed in a week or two and then testing can begin. Sungjung is presently working on the menu system etc. I can’t wait to give it a try.

A fellow amateur astronomer pointed out that we may have issue with EMI radiation that could effect astro-photography. Thought that has no effect on me as I’m a visual observer this project will be open source and documentation for others to follow and build there own or have us provide them pre-built units, or possibly kits.

Check back for follow up posts.

Earth-sized planet found just outside solar system

This artist’s impression shows the planet orbiting the star Alpha Centauri B, a member of the triple star system that is the closest to Earth. Alpha Centauri B is the most brilliant object in the sky and the other dazzling object is Alpha Centauri A. Our own Sun is visible to the upper right. The tiny signal of the planet was found with the HARPS spectrograph on the 3.6-metre telescope at ESO’s La Silla Observatory in Chile. Credit: ESO/L. Calçada
Read more at: http://phys.org/news/2012-10-earth-sized-planet-solar.html#jCp

Alpha Centauri is one of the brightest stars in the southern skies and is the nearest stellar system to our Solar System—only 4.3 light-years away. It is actually a triple star—a system consisting of two stars similar to the Sun orbiting close to each other, designated Alpha Centauri A and B, and a more distant and faint red component known as Proxima Centauri. Since the nineteenth century astronomers have speculated about planets orbiting these bodies, the closest possible abodes for life beyond the Solar System, but searches of increasing precision had revealed nothing. Until now.

“Our observations extended over more than four years using the HARPS instrument and have revealed a tiny, but real, signal from a planet orbiting Alpha Centauri B every 3.2 days,” says Xavier Dumusque (Geneva Observatory, Switzerland and Centro de Astrofisica da Universidade do Porto, Portugal), lead author of the paper. “It’s an extraordinary discovery and it has pushed our technique to the limit!”

READ MORE…

Source: Phys.org

Private Asteroid-Hunting Space Telescope to Launch in 2017

“A private space telescope mission that aims to discover 500,000 near-Earth asteroids is technically sound and on track for a 2017 launch, a review panel says.

The mission design and implementation plans for the Sentinel Space Telescope — which is being put together by the nonprofit B612 Foundation and its partner Ball Aerospace — are solid, according to the panel, which is called the Sentinel Special Review Team.”

READ MORE…

Source: Live Science

Black Hole’s “Point of No Return” Found

“Using a continent-spanning telescope, an international team of astronomers has peered to the edge of a black hole at the center of a distant galaxy. For the first time, they have measured the black hole’s ‘http://news.harvard.edu/gazette/story/2012/10/point-of-no-return-found/point of no return’ — the closest distance that matter can approach before being irretrievably pulled into the black hole. According to Einstein’s theory of general relativity, a black hole’s mass and spin determine how close material…”

READ MORE…

Source: Slashdot