Sentences with phrase «used by amateur astronomers»

Nowadays these names are often used by amateur astronomers, but professional astronomers tend to use a simpler scheme: in each constellation the brightest star is named Alpha, the second brightest is Beta, etc. leading to names like alpha Persei (the brightest star of the constellation Perseus).

It can only be seen well on long - exposure photographs and is often used by amateur astronomers as a test of their observing skill.

Kamuela, HI — Combining observations from the world's largest telescopes with small telescopes used by amateur astronomers, a team of scientists discovered that the large main - belt asteroid (87) Sylvia has a complex interior, thanks to the presence of two moons orbiting the main asteroid, and probably linked to the way the multiple system was formed.

Among the most used by amateur astronomers are The New Cosmos: Answering Astronomy's Big Questions, Comets: Visitors from Deep Space, The Universe from Your Backyard, Deep - Sky Observing with Small Telescopes, and Stars and Galaxies.

Not exact matches

Paglen was able to identify and photograph these secret spacecraft due to the work of a diverse international group of amateur astronomers who maintain a catalogue of classified spacecraft in Earth's orbit by producing mathematical descriptions of orbits using simple tools like stopwatches and binoculars.

Nicknamed «the Penguin» or «the Porpoise» by amateur astronomers, NGC 2936 used to be a standard spiral galaxy before being torn apart by the gravity of its cosmic companion.

Using imagery taken by NASA's Mars Reconnaissance Orbiter in 2007, amateur astronomers located an object that could be a Russian lander that went dark after a few seconds on Mars in 1971.

Astronomers (professional or amateur) can measure a star's brightness (the amount of light it puts out) by using a photometer or charge - coupled device (CCD) on the end of a telescope.

Invented by amateur astronomer Ben Mayer, the PROBLICOM (Projector Blink Comparator) uses two juxtaposed slide projectors and a rotating disc to alternately obscure the images at a stroboscopic pace.

Invented by amateur astronomer Ben Mayer, the PROBLICOM (Projector Blink Comparator) uses two juxtaposed slide projectors and a rotation disc to alternately obscure the images at a stroboscopic pace.