Name: Period: ______ Date: 1/16/07
... So how far away is Proxima Centauri in light-years? To find the answer, divide the distance from Earth to Proxima Centauri (40 trillion km.) by the distance in one light year (9.5 trillion km.) The answer is 4.2 light-years. 1. Why do scientists measure distance in light2. How did the light-year get ...
... So how far away is Proxima Centauri in light-years? To find the answer, divide the distance from Earth to Proxima Centauri (40 trillion km.) by the distance in one light year (9.5 trillion km.) The answer is 4.2 light-years. 1. Why do scientists measure distance in light2. How did the light-year get ...
August Newsletter
... Corona Australis is a small, compact constellation located between Sagittarius and Scorpius, just east of the scorpion's stinger. (We also have the other crown Corona Borealis in the sky too for a short time, one of the few times in the year when both crowns appear in our sky together). Lyra, the Ly ...
... Corona Australis is a small, compact constellation located between Sagittarius and Scorpius, just east of the scorpion's stinger. (We also have the other crown Corona Borealis in the sky too for a short time, one of the few times in the year when both crowns appear in our sky together). Lyra, the Ly ...
Stellar Evolution
... • In 1912, Danish astronomer Ejnar Hertzsprung and American astronomer Henry Russell independently graphed the luminosity vs. temperatures for thousands of stars and found a surprising relationship • The Hertzsprung-Russel (H-R) diagram shows the evolution of stars based on their characteristics of ...
... • In 1912, Danish astronomer Ejnar Hertzsprung and American astronomer Henry Russell independently graphed the luminosity vs. temperatures for thousands of stars and found a surprising relationship • The Hertzsprung-Russel (H-R) diagram shows the evolution of stars based on their characteristics of ...
Models of the sky—11 Sept Changes in the Sky
... Models of the sky—11 Sept • Homework 1 is due Mon. ...
... Models of the sky—11 Sept • Homework 1 is due Mon. ...
AJAstroProject
... that only use V,R,I and the V exposure was 10 seconds and this was also used for the luminosity of the photo, as well as the blue, R was green and I was red. • And of the three this is my favorite. And is why I chose to end with it. ...
... that only use V,R,I and the V exposure was 10 seconds and this was also used for the luminosity of the photo, as well as the blue, R was green and I was red. • And of the three this is my favorite. And is why I chose to end with it. ...
Two Summers in the UCSC Science Internship Program
... clusters. In conducting background research, I learned that field stars are unusual: Stars are known to form in clusters, so it is rare to find a young, recently formed star in isolation. This anomalous behavior makes field stars an exciting and hotly debated subject. One theory proposes that field ...
... clusters. In conducting background research, I learned that field stars are unusual: Stars are known to form in clusters, so it is rare to find a young, recently formed star in isolation. This anomalous behavior makes field stars an exciting and hotly debated subject. One theory proposes that field ...
Sirius Astronomer - Orange County Astronomers
... a bright star that appears to be the least massive exoplanet directly observed. Although nearly 1000 exoplanets have been discovered, only about a dozen have been directly imaged. The mass was estimated from its brightness, and appears to be 4-5 times that of Jupiter. The object was imaged in infrar ...
... a bright star that appears to be the least massive exoplanet directly observed. Although nearly 1000 exoplanets have been discovered, only about a dozen have been directly imaged. The mass was estimated from its brightness, and appears to be 4-5 times that of Jupiter. The object was imaged in infrar ...
LETTERS A giant planet orbiting the ‘extreme horizontal
... helium in its core and pulsating. The maximum radius of the redgiant precursor of V 391 Pegasi may have reached 0.7 AU, while the orbital distance of the planet during the stellar main-sequence phase is estimated to be about 1 AU. This detection of a planet orbiting a post-red-giant star demonstrate ...
... helium in its core and pulsating. The maximum radius of the redgiant precursor of V 391 Pegasi may have reached 0.7 AU, while the orbital distance of the planet during the stellar main-sequence phase is estimated to be about 1 AU. This detection of a planet orbiting a post-red-giant star demonstrate ...
Lecture 2
... (bright and hot) to lower right (faint and cool) • Sun is a MS star (type G2) • Cool MS stars are more common than hot MS stars. ...
... (bright and hot) to lower right (faint and cool) • Sun is a MS star (type G2) • Cool MS stars are more common than hot MS stars. ...
Slide 1
... Brightest stars were known to, and named by, the ancients (Procyon) In 1604, stars within a constellation were ranked in order of brightness and labeled with Greek letters (Alpha Centauri) In the early 18th century, stars were numbered from west to east in a constellation (61 Cygni) ...
... Brightest stars were known to, and named by, the ancients (Procyon) In 1604, stars within a constellation were ranked in order of brightness and labeled with Greek letters (Alpha Centauri) In the early 18th century, stars were numbered from west to east in a constellation (61 Cygni) ...
Document
... • Under collapse, protons and electrons combine to form neutrons. • 10 Km across Black Hole (If mass of core > 5 x Solar) • Not even compacted neutrons can support weight of very massive stars. ...
... • Under collapse, protons and electrons combine to form neutrons. • 10 Km across Black Hole (If mass of core > 5 x Solar) • Not even compacted neutrons can support weight of very massive stars. ...
Stars I - Astronomy Centre
... • A planet has two kinds of angular momentum orbital and spin - due to the orbit of the planet around the Sun and rotation of the planet about its own spin axis respectively • Given that angular momentum depends on mass, size of object/orbit and velocity of rotation/revolution, which form contribute ...
... • A planet has two kinds of angular momentum orbital and spin - due to the orbit of the planet around the Sun and rotation of the planet about its own spin axis respectively • Given that angular momentum depends on mass, size of object/orbit and velocity of rotation/revolution, which form contribute ...
PHYSICS 1500 - ASTRONOMY TOTAL
... following is not a contributing factor to this situation? (a) Mars is close to the asteroid belt, which resulted in widespread cratering in the heavy bombardment period. (b) Venus is a little close to the sun, resulting in a runaway greenhouse effect in the atmosphere. (c) Mars is slightly too small ...
... following is not a contributing factor to this situation? (a) Mars is close to the asteroid belt, which resulted in widespread cratering in the heavy bombardment period. (b) Venus is a little close to the sun, resulting in a runaway greenhouse effect in the atmosphere. (c) Mars is slightly too small ...
Ursa Minor
Ursa Minor (Latin: ""Smaller She-Bear"", contrasting with Ursa Major), also known as the Little Bear, is a constellation in the northern sky. Like the Great Bear, the tail of the Little Bear may also be seen as the handle of a ladle, hence the name Little Dipper. It was one of the 48 constellations listed by the 2nd-century astronomer Ptolemy, and remains one of the 88 modern constellations. Ursa Minor has traditionally been important for navigation, particularly by mariners, due to Polaris being the North Star.Polaris, the brightest star in the constellation, is a yellow-white supergiant and the brightest Cepheid variable star in the night sky, ranging from apparent magnitude 1.97 to 2.00. Beta Ursae Minoris, also known as Kochab, is an aging star that has swollen and cooled to become an orange giant with an apparent magnitude of 2.08, only slightly fainter than Polaris. Kochab and magnitude 3 Gamma Ursae Minoris have been called the ""guardians of the pole star"". Planets have been detected orbiting four of the stars, including Kochab. The constellation also contains an isolated neutron star—Calvera—and H1504+65, the hottest white dwarf yet discovered with a surface temperature of 200,000 K.