Which object is a meteor?
... • Option A (kilometer is too small) • Option B (miles is also too small) • Option C (Light-year, it would only be a few light minutes between the planets, too large a unit to use) • CORRECT ANSWER: Option D (Astronomical unit, the distance between the Earth and the Sun, 150 million Km) ...
... • Option A (kilometer is too small) • Option B (miles is also too small) • Option C (Light-year, it would only be a few light minutes between the planets, too large a unit to use) • CORRECT ANSWER: Option D (Astronomical unit, the distance between the Earth and the Sun, 150 million Km) ...
August Skies
... and the earth's atmosphere incinerates the particles into the glowing embers called meteors or “falling stars”. The shower peaks early afternoon on the 12th, so the morning of the 12th (midnight to dawn) is the best time to watch although quite a few should be visible a few nights before and after t ...
... and the earth's atmosphere incinerates the particles into the glowing embers called meteors or “falling stars”. The shower peaks early afternoon on the 12th, so the morning of the 12th (midnight to dawn) is the best time to watch although quite a few should be visible a few nights before and after t ...
Lecture 5
... maintain equilibrium, more massive->larger radius, higher surface T (look at the HR diagram) ...
... maintain equilibrium, more massive->larger radius, higher surface T (look at the HR diagram) ...
Binary Star Systems
... And, gravity allows us to see comets up close and personal (not always a good thing). ...
... And, gravity allows us to see comets up close and personal (not always a good thing). ...
Review 1 Solutions
... theory, dark matter is composed primarily of WIMPs, which cannot be detected by ordinary means. 3. Which of the following are presently expanding? Circle all that apply. Earth ...
... theory, dark matter is composed primarily of WIMPs, which cannot be detected by ordinary means. 3. Which of the following are presently expanding? Circle all that apply. Earth ...
astronomy review sheet2
... A) blue supergiant star with a temperature of approximately 20,000°C and a luminosity of 700,000 B) main sequence star with a temperature of approximately 6,000°C and a luminosity of 1 C) main sequence star with a temperature of approximately 4,000°C and a luminosity of 100 D) white dwarf star with ...
... A) blue supergiant star with a temperature of approximately 20,000°C and a luminosity of 700,000 B) main sequence star with a temperature of approximately 6,000°C and a luminosity of 1 C) main sequence star with a temperature of approximately 4,000°C and a luminosity of 100 D) white dwarf star with ...
Unit Two Worksheet – Astronomy
... Used to determine the distance from the earth to a star based on the shift in the apparent position of the star when viewed from different angles How bright a star appears to be from Earth A mass of gases that gives off enormous amounts of energy in the form of light and heat Very large, cool, brigh ...
... Used to determine the distance from the earth to a star based on the shift in the apparent position of the star when viewed from different angles How bright a star appears to be from Earth A mass of gases that gives off enormous amounts of energy in the form of light and heat Very large, cool, brigh ...
The Life of a Star - Department of Physics and Astronomy
... – Luminosity or brightness if ALL stars at 10pc ...
... – Luminosity or brightness if ALL stars at 10pc ...
Lecture 31 - 2 The Death of Stars: Stellar Recycling Phase 3 -
... • Helium core shrinks by a factor of ~30 to a size approximately that of the Earth • Hydrogen “burning” (i.e. H→He+energy release) continues in a thin shell just outside collapsing He core. • total luminosity of star increases by 100 to 1000 due to renewed H burning + heating of collapsing core. • o ...
... • Helium core shrinks by a factor of ~30 to a size approximately that of the Earth • Hydrogen “burning” (i.e. H→He+energy release) continues in a thin shell just outside collapsing He core. • total luminosity of star increases by 100 to 1000 due to renewed H burning + heating of collapsing core. • o ...
THE CONSTELLATION LUPUS, THE WOLF
... THE CONSTELLATION LUPUS, THE WOLF Lupus is a constellation in the southern sky. Its name is Latin for wolf. Lupus was one of the 48 constellations listed by the 2nd century astronomer Ptolemy, and it remains one of the 88 modern constellations. It lies between Centaurus and Scorpius. STARS Lupus has ...
... THE CONSTELLATION LUPUS, THE WOLF Lupus is a constellation in the southern sky. Its name is Latin for wolf. Lupus was one of the 48 constellations listed by the 2nd century astronomer Ptolemy, and it remains one of the 88 modern constellations. It lies between Centaurus and Scorpius. STARS Lupus has ...
Mar 2017 - What`s Out Tonight?
... An Open Cluster is a group of several to hundreds of stars The planets are best observed with a telescope using magnifithat were born out of the same nebula cloud. A group often forms cations from 50x to 200x. The five naked-eye planets are Mera pretty pattern. The Pleiades and Praesepe are great ex ...
... An Open Cluster is a group of several to hundreds of stars The planets are best observed with a telescope using magnifithat were born out of the same nebula cloud. A group often forms cations from 50x to 200x. The five naked-eye planets are Mera pretty pattern. The Pleiades and Praesepe are great ex ...
AY1 Homework for Quiz 2: Spring 2017
... ___ A. It will have become slightly more massive than the Sun is now because lightweight hydrogen has been converted into heavier Helium ___ B. It will be enriched in helium compared to the Sun ___ ...
... ___ A. It will have become slightly more massive than the Sun is now because lightweight hydrogen has been converted into heavier Helium ___ B. It will be enriched in helium compared to the Sun ___ ...
Tour the sky`s reddest stars
... of stars by their spectral types, was so impressed with Y CVn that he called it “La Superba.” Scientists study a star’s spectrum by measuring the intensity of its light at different wavelengths. The standard spectral classes assign letters to stars based on their temperatures. From hottest to cooles ...
... of stars by their spectral types, was so impressed with Y CVn that he called it “La Superba.” Scientists study a star’s spectrum by measuring the intensity of its light at different wavelengths. The standard spectral classes assign letters to stars based on their temperatures. From hottest to cooles ...
Astronomy Basics
... cores”, which are rocky/icy planetesimals around 10x as massive as Earth. These cores are so massive that they accrete gas, forming gas giant planets. ...
... cores”, which are rocky/icy planetesimals around 10x as massive as Earth. These cores are so massive that they accrete gas, forming gas giant planets. ...
Habitibility of Earth, in our Solar System, and Beyond
... Water vapor! On Hot Jupiter HD 189733b 4.5 million km from star (Mercury is 70 mil km) 2.2 day orbit, surface T 700°C (1000K) ...
... Water vapor! On Hot Jupiter HD 189733b 4.5 million km from star (Mercury is 70 mil km) 2.2 day orbit, surface T 700°C (1000K) ...
Signs of the Zodiac: Capricorn
... Secunda Giedi (Alpha-2 Capricorni), which are separated by 0.11 degrees in the sky. Nashira γ Capricorni (Gamma Capricorni) is a blue-white A-type giant, approximately 139 light years distant. Its name is derived from the Arabic phrase for “bearer of good news.” It has an apparent magnitude of 3.69 ...
... Secunda Giedi (Alpha-2 Capricorni), which are separated by 0.11 degrees in the sky. Nashira γ Capricorni (Gamma Capricorni) is a blue-white A-type giant, approximately 139 light years distant. Its name is derived from the Arabic phrase for “bearer of good news.” It has an apparent magnitude of 3.69 ...
Astronomy 12: Introduction to Astronomy
... removed -found everywhere in Galaxy -produced from old, low-mass stars -fixed maximum brightness ...
... removed -found everywhere in Galaxy -produced from old, low-mass stars -fixed maximum brightness ...
Our Star - the Sun
... The photosphere is the lowest of three main layers in the Sun’s atmosphere • The Sun’s atmosphere has three main layers: the photosphere, the chromosphere, and the ...
... The photosphere is the lowest of three main layers in the Sun’s atmosphere • The Sun’s atmosphere has three main layers: the photosphere, the chromosphere, and the ...
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.