Information and workshee - Athens
... 15. The hottest planet in our solar system due to its thick atmosphere and closeness to the sun. 17. This constellation represents the beautiful queen of Ethiopia who angered the god Poseidon. 19. A small object - made of ice, frozen gas and dust - that orbits the sun. 20. These depressions in the g ...
... 15. The hottest planet in our solar system due to its thick atmosphere and closeness to the sun. 17. This constellation represents the beautiful queen of Ethiopia who angered the god Poseidon. 19. A small object - made of ice, frozen gas and dust - that orbits the sun. 20. These depressions in the g ...
Masers and high mass star formation Claire Chandler
... outflow. At its center there are several young sources. H2 image with NH3 contours (Shuping et al. 2004; Wilson et al. 2000) ...
... outflow. At its center there are several young sources. H2 image with NH3 contours (Shuping et al. 2004; Wilson et al. 2000) ...
January 2006
... may look strange, e.g. K5III for Aldebaran. Ignore the roman numbers ( III means a giant star, V means dwarf star, etc). First letter is the spectral type: K (one of OBAFGKM), the arab number (5) is like a second digit to the spectral type, so K0 is very close to G, K9 is very close to M. ...
... may look strange, e.g. K5III for Aldebaran. Ignore the roman numbers ( III means a giant star, V means dwarf star, etc). First letter is the spectral type: K (one of OBAFGKM), the arab number (5) is like a second digit to the spectral type, so K0 is very close to G, K9 is very close to M. ...
Define the following terms in the space provided
... You arrive in Cancun on a clear night. You look up at the stars and notice that they appear different that the stars you see in Syracuse, NY. Which of the statements below is true regarding the appearance of the stars in Cancun? Circle all that are true. A) Polaris will appear higher in the sky than ...
... You arrive in Cancun on a clear night. You look up at the stars and notice that they appear different that the stars you see in Syracuse, NY. Which of the statements below is true regarding the appearance of the stars in Cancun? Circle all that are true. A) Polaris will appear higher in the sky than ...
What are the Spectral Lines? - University of Texas Astronomy Home
... asked about the stars in the early 1800s? • How far away are they (stellar distance scale)? • What are the stars made of (stellar composition)? • How massive are they? • How long do they live (stellar lifetimes)? • By what mechanism do they shine? • Is the Sun just a (nearby) star? ...
... asked about the stars in the early 1800s? • How far away are they (stellar distance scale)? • What are the stars made of (stellar composition)? • How massive are they? • How long do they live (stellar lifetimes)? • By what mechanism do they shine? • Is the Sun just a (nearby) star? ...
Slide 1
... • Consists of over 200 billion stars • 16,000 light years thick (central bulge) • 100,000 light years across (long end to end) • The arm that our solar system is in (Orion Arm) is about 30,000 light years long ...
... • Consists of over 200 billion stars • 16,000 light years thick (central bulge) • 100,000 light years across (long end to end) • The arm that our solar system is in (Orion Arm) is about 30,000 light years long ...
key - Scioly.org
... in luminosity and size over short periods of time (1 point). c) Infrared d) Left: visible; Right: ultraviolet (1 point each) 26) SN 2011fe (7 points) a) Palomar Transient Factory survey b) Type 1a supernova c) Because SN 2011fe was first observed in a very early stage (1 point), astronomers will be ...
... in luminosity and size over short periods of time (1 point). c) Infrared d) Left: visible; Right: ultraviolet (1 point each) 26) SN 2011fe (7 points) a) Palomar Transient Factory survey b) Type 1a supernova c) Because SN 2011fe was first observed in a very early stage (1 point), astronomers will be ...
Synthetic color-magnitude diagrams: the ingredients
... – In addition, we consider the galaxy as a closed system out of which no matter can escape or be added later on by processes of accretion or merger. – we assume that the timescales of the stellar evolution processes that lead to the metal enrichment of the galaxy are small compared to the evolutio ...
... – In addition, we consider the galaxy as a closed system out of which no matter can escape or be added later on by processes of accretion or merger. – we assume that the timescales of the stellar evolution processes that lead to the metal enrichment of the galaxy are small compared to the evolutio ...
Name - MIT
... A) Both stars have the same luminosity, but the apparent brightness of the closer star is sixteen times greater than that of the more distant star. B) Both stars have the same apparent brightness, but the luminosity of the closer star is sixteen times greater than that of the more distant star. C) B ...
... A) Both stars have the same luminosity, but the apparent brightness of the closer star is sixteen times greater than that of the more distant star. B) Both stars have the same apparent brightness, but the luminosity of the closer star is sixteen times greater than that of the more distant star. C) B ...
Print
... seem incredibly far away. However, the next closest star to us is about 270,000 times farther away than this! For the sun to appear so bright and feel so warm to us from such a distance, it must be very big and very hot. The sun is actually so big that 109 Earths could fit across it, and 1,300,000 E ...
... seem incredibly far away. However, the next closest star to us is about 270,000 times farther away than this! For the sun to appear so bright and feel so warm to us from such a distance, it must be very big and very hot. The sun is actually so big that 109 Earths could fit across it, and 1,300,000 E ...
Related Handout - Orange County Astronomers
... composition consists mainly of gases, hydrogen (85%), helium (15%) and traces of methane, ammonia, and other compounds. Its mass is 317 times that of Earth, its equatorial diameter is 86,500 miles, and it circles the Sun in 11.86 years at an average distance of 5.2 AU. It has more than 20 moons alth ...
... composition consists mainly of gases, hydrogen (85%), helium (15%) and traces of methane, ammonia, and other compounds. Its mass is 317 times that of Earth, its equatorial diameter is 86,500 miles, and it circles the Sun in 11.86 years at an average distance of 5.2 AU. It has more than 20 moons alth ...
What is a T Tauri star?
... Found in dusty regions- proper motions correlated Off main sequence Sometimes associated with disks and/or outflows ...
... Found in dusty regions- proper motions correlated Off main sequence Sometimes associated with disks and/or outflows ...
Chapter11
... contracting star and gives it stability? We can understand this phenomenon because we understand some of the basic laws of physics. ...
... contracting star and gives it stability? We can understand this phenomenon because we understand some of the basic laws of physics. ...
Lecture2
... becomes two dimensional due to our perspective on Earth. The north and south pole of the Earth extend out to the north and south celestial poles The equator of the Earth extends out to the celestial ...
... becomes two dimensional due to our perspective on Earth. The north and south pole of the Earth extend out to the north and south celestial poles The equator of the Earth extends out to the celestial ...
File - Teaching Through E
... • Sometimes referred to as the Red Planet • Even though Mars is much smaller than Earth, its surface area is about the same as the land surface area of Earth. ...
... • Sometimes referred to as the Red Planet • Even though Mars is much smaller than Earth, its surface area is about the same as the land surface area of Earth. ...
More on Cluster HR diagrams - University of Texas Astronomy
... pressure and shock waves from pulsations driving matter away—see Discovery 20-2, p. 564.) The star is also pulsating (period ~years); see Fig. 20.9. These bloated envelopes are not very stable! Eventually so much of the envelope is lost that the last bit of envelope gets ejected as a more or less sp ...
... pressure and shock waves from pulsations driving matter away—see Discovery 20-2, p. 564.) The star is also pulsating (period ~years); see Fig. 20.9. These bloated envelopes are not very stable! Eventually so much of the envelope is lost that the last bit of envelope gets ejected as a more or less sp ...
Cosmic Distance Ladder
... of the Earth causes nearby stars to appear to move relative to the more distant stars. • The annual parallax is defined as the difference in position of a star as seen from the Earth and Sun, i.e. the angle subtended at a star by the mean radius of the Earth's orbit around the Sun. ...
... of the Earth causes nearby stars to appear to move relative to the more distant stars. • The annual parallax is defined as the difference in position of a star as seen from the Earth and Sun, i.e. the angle subtended at a star by the mean radius of the Earth's orbit around the Sun. ...
Spectropolarimetric view of the lower atmosphere of
... II - Sciences et techniques, IN2P3 – Université de Montpellier II Place Eugène Bataillon - CC 72 34095 Montpellier Cédex 05, France ...
... II - Sciences et techniques, IN2P3 – Université de Montpellier II Place Eugène Bataillon - CC 72 34095 Montpellier Cédex 05, France ...
Star Fromation and ISM
... Some fragments are too small for fusion ever to begin. They gradually cool off and become dark “clinkers.” A protostar must have 0.08 the mass of the Sun (which is 80 times the mass of Jupiter) in order to become dense and hot enough that fusion can begin. ...
... Some fragments are too small for fusion ever to begin. They gradually cool off and become dark “clinkers.” A protostar must have 0.08 the mass of the Sun (which is 80 times the mass of Jupiter) in order to become dense and hot enough that fusion can begin. ...
ISP 205: Visions of the Universe
... The rotation of the earth about its axis causes how many of the following? -The rising and setting of the sun -The rising and setting of the moon -The rising and setting of stars -The rising and setting of distant galaxies Answer: 0, 1, 2, 3, or 4? ...
... The rotation of the earth about its axis causes how many of the following? -The rising and setting of the sun -The rising and setting of the moon -The rising and setting of stars -The rising and setting of distant galaxies Answer: 0, 1, 2, 3, or 4? ...
Lab 1: Introduction to Astronomy
... clue is worth one point. If you have trouble, feel free to ask your TA for help! The total lab is out of 30 points, so there are two points of extra credit available! Across 2: This object is Roman Vulcan’s home in our Solar System 3: First seen by Galileo around the 6th planet, these are mostly icy ...
... clue is worth one point. If you have trouble, feel free to ask your TA for help! The total lab is out of 30 points, so there are two points of extra credit available! Across 2: This object is Roman Vulcan’s home in our Solar System 3: First seen by Galileo around the 6th planet, these are mostly icy ...
PRACTICE MINI-EXAM
... 10) Ordinary matter provides 4% of the critical density of the universe. a) What is the average density of ordinary matter in the universe, given in units of kilograms per cubic meter? b) Suppose that the ordinary matter consisted entirely of regulation bowling balls, each with a mass Mbb = 7 kg. H ...
... 10) Ordinary matter provides 4% of the critical density of the universe. a) What is the average density of ordinary matter in the universe, given in units of kilograms per cubic meter? b) Suppose that the ordinary matter consisted entirely of regulation bowling balls, each with a mass Mbb = 7 kg. H ...
Ch 28 Class Notes
... 2. An important class of pulsating stars are called _____________________________. These are yellow supergiants whose cycles of brightness range from about 1 day to 50 days (5 is average). The absolute magnitude of a Cepheid is related to the length of time between its periods of maximum brightness ...
... 2. An important class of pulsating stars are called _____________________________. These are yellow supergiants whose cycles of brightness range from about 1 day to 50 days (5 is average). The absolute magnitude of a Cepheid is related to the length of time between its periods of maximum brightness ...
Corvus (constellation)
Corvus is a small constellation in the Southern Celestial Hemisphere. Its name comes from the Latin word ""raven"" or ""crow"". It includes only 11 stars with brighter than 4.02 magnitudes. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations. The four brightest stars, Gamma, Delta, Epsilon, and Beta Corvi from a distinctive quadrilateral in the night sky. The young star Eta Corvi has been found to have two debris disks.