Ourdraft
... Young Stars in IC 2118 We are studying a nebula (cloud of gas and dust) called Interstellar Cloud 2118, or the Witch Head Nebula, that is being excited by a young, very hot star called Rigel. Because Rigel is so energetic, it sends off shock waves that hit the nebula, compressing some of the gas (at ...
... Young Stars in IC 2118 We are studying a nebula (cloud of gas and dust) called Interstellar Cloud 2118, or the Witch Head Nebula, that is being excited by a young, very hot star called Rigel. Because Rigel is so energetic, it sends off shock waves that hit the nebula, compressing some of the gas (at ...
H-R Diagrams
... – It also shows color since color is related to temperature – It was made by two astronomers who plotted the data for thousands of stars and noticed some trends. ...
... – It also shows color since color is related to temperature – It was made by two astronomers who plotted the data for thousands of stars and noticed some trends. ...
Stars - etpt2020s11
... The Sun Located in the center of our solar system is the brightest of all the stars, the sun. The sun is the closest star to the Earth. Due to the spatial arrangement of the Earth and the Sun, it sun is visible to us and responsible for most of the Earth’s energy. ...
... The Sun Located in the center of our solar system is the brightest of all the stars, the sun. The sun is the closest star to the Earth. Due to the spatial arrangement of the Earth and the Sun, it sun is visible to us and responsible for most of the Earth’s energy. ...
20 pm - Starmap
... As a starting point, face North, holding the map in your eyesight direction, with its North down. As you change the direction, rotate the map accordingly. The objects listed on the first page can be observed with naked eyes, in clear skies, with moderate light pollution. Close your eyes one minute a ...
... As a starting point, face North, holding the map in your eyesight direction, with its North down. As you change the direction, rotate the map accordingly. The objects listed on the first page can be observed with naked eyes, in clear skies, with moderate light pollution. Close your eyes one minute a ...
The Science behind the Stars ctY Astrophysics by Spencer McClung
... of images of light from a star and had to determine the mass of its binary companion. For an hour we used two sticks to monitor small changes in the star’s light and then used a very long series of calculations with very big numbers. In the end, we were off by a couple orders of magnitude, but this ...
... of images of light from a star and had to determine the mass of its binary companion. For an hour we used two sticks to monitor small changes in the star’s light and then used a very long series of calculations with very big numbers. In the end, we were off by a couple orders of magnitude, but this ...
LIGO Star Chart
... reach us, the distance between the two galaxies is getting smaller. Andromeda is moving toward the Milky Way at about 700,000 miles per hour! The best explanation for this is that the Milky Way and Andromeda are in fact a bound pair of galaxies in orbit around one another. Both galaxies are thought ...
... reach us, the distance between the two galaxies is getting smaller. Andromeda is moving toward the Milky Way at about 700,000 miles per hour! The best explanation for this is that the Milky Way and Andromeda are in fact a bound pair of galaxies in orbit around one another. Both galaxies are thought ...
Powerpoint Presentation (large file)
... The spiral arms of our Galaxy are laced with giant molecular clouds, immense nebulae so cold that their constituent atoms can form into molecules ...
... The spiral arms of our Galaxy are laced with giant molecular clouds, immense nebulae so cold that their constituent atoms can form into molecules ...
H-R Diagram Notes
... • Temperature ______________________ as you move to the Right on the X-axis • Absolute Magnitude ________________________ as you move up on the Y-axis. • NEGATIVE absolute magnitude values are ____________________ than POSITIVE absolute magnitude values A star… • Starts off in the lower right hand c ...
... • Temperature ______________________ as you move to the Right on the X-axis • Absolute Magnitude ________________________ as you move up on the Y-axis. • NEGATIVE absolute magnitude values are ____________________ than POSITIVE absolute magnitude values A star… • Starts off in the lower right hand c ...
FINAL EXAM Name: ASTRONOMY II - 79202 Spring 1995
... 17. The HST measured the gas velocity around the “disk” at the core of M87 (15 Mpc away) using Doppler shift spectroscopy. They found a rotation speed of 550 km/sec within 0.2” on either side of the center of the disk. The mass within this region is A. At least one solar mass. B. 2 1033 kg C. 2 ...
... 17. The HST measured the gas velocity around the “disk” at the core of M87 (15 Mpc away) using Doppler shift spectroscopy. They found a rotation speed of 550 km/sec within 0.2” on either side of the center of the disk. The mass within this region is A. At least one solar mass. B. 2 1033 kg C. 2 ...
HW6 due - Yale Astronomy
... Demonstrate that star-‐star collisions will be rare in the upcoming collision between the Milky Way Galaxy and the Andromeda Galaxy (M31). Assume that all the stars in both galaxies have the same size, ...
... Demonstrate that star-‐star collisions will be rare in the upcoming collision between the Milky Way Galaxy and the Andromeda Galaxy (M31). Assume that all the stars in both galaxies have the same size, ...
Handout from Allaire Star Party
... Earth would be about the size of a pea. If you placed the beach ball on one goal line of a football field, the Earth would be at about the fifty-yard line. Pluto would be about 20 football fields away from the Sun. How far away are the closest stars? Imagine now that the Sun is shrunk even further, ...
... Earth would be about the size of a pea. If you placed the beach ball on one goal line of a football field, the Earth would be at about the fifty-yard line. Pluto would be about 20 football fields away from the Sun. How far away are the closest stars? Imagine now that the Sun is shrunk even further, ...
Sky Notes - April 2012 - North Devon Astronomical Society
... whose luminosity ranges between magnitude +3.4 and +5.1 over a period of around 730 days. A red supergiant with a radius of around 11.8 astronomical units, this star is truly enormous. If the centre of Mu Cephei were placed in the position of our Sun, it would reach out as far as the orbit of Saturn ...
... whose luminosity ranges between magnitude +3.4 and +5.1 over a period of around 730 days. A red supergiant with a radius of around 11.8 astronomical units, this star is truly enormous. If the centre of Mu Cephei were placed in the position of our Sun, it would reach out as far as the orbit of Saturn ...
LIfe of a Star
... Hydrogen changes into helium which creates enormous amounts of energy The size of the star does not change much ...
... Hydrogen changes into helium which creates enormous amounts of energy The size of the star does not change much ...
Astronomy 1 Study Guide Key 16
... 7. A galaxy is a collection of stars. Our galaxy is called the Milky Way. 8. It has many solar systems with in its arms. At the center of our spiral galaxy is a black hole, so our galaxy is also called a quasar. Stars Be able to read an H-R diagram. ...
... 7. A galaxy is a collection of stars. Our galaxy is called the Milky Way. 8. It has many solar systems with in its arms. At the center of our spiral galaxy is a black hole, so our galaxy is also called a quasar. Stars Be able to read an H-R diagram. ...
PHY 150
... Kepler’s Law of Periods (derived from Newton’s 2nd Law) relates the period of an object to the radius of the object when the object is circling some massive object, i.e. T 2 ≈ r 3 . Most of the mass in the Milky Way galaxy lies in the galactic nucleus. Thus, stars in the spiral arms can be envisione ...
... Kepler’s Law of Periods (derived from Newton’s 2nd Law) relates the period of an object to the radius of the object when the object is circling some massive object, i.e. T 2 ≈ r 3 . Most of the mass in the Milky Way galaxy lies in the galactic nucleus. Thus, stars in the spiral arms can be envisione ...
File
... Absolute magnitude is the brightness of the star compared to other stars at the same distance. Apparent magnitude is how bright it appears from Earth. ...
... Absolute magnitude is the brightness of the star compared to other stars at the same distance. Apparent magnitude is how bright it appears from Earth. ...
ppt
... • Apparent magnitude - doesn't measure how bright objects actually are; it measures how bright they appear to us, which also depends on how close they are eg Sun has m = -26.74 • Absolute magnitude - measures how bright objects actually are -- it is defined as the apparent magnitude that an object w ...
... • Apparent magnitude - doesn't measure how bright objects actually are; it measures how bright they appear to us, which also depends on how close they are eg Sun has m = -26.74 • Absolute magnitude - measures how bright objects actually are -- it is defined as the apparent magnitude that an object w ...
NIE10x301Sponsor Thank You (Page 1)
... The constellation Leo, rising in the east after dark in the Spring, is another rich hunting ground for galaxies; the Leo Group resides in space behind it, about 40 million ly distant. Two groups of galaxies are visible under the belly and haunches of the Lion; a star chart will help you. M65 and M66 ...
... The constellation Leo, rising in the east after dark in the Spring, is another rich hunting ground for galaxies; the Leo Group resides in space behind it, about 40 million ly distant. Two groups of galaxies are visible under the belly and haunches of the Lion; a star chart will help you. M65 and M66 ...
1” “Sky-Notes” of the Open University Astronomy Club. April 2005
... NGC2903 (8.9) sg. A spiral galaxy inclined to our line of sight. One of the brightest galaxies in Leo it is surprisingly not a Messier object. NGC3190 (11.0) sg and NGC3193 (10.9) eg. Pair of galaxies located mid-way between and . NGC3226 (11.4) and NGC3227 (10.8) about 1o east of form a close ...
... NGC2903 (8.9) sg. A spiral galaxy inclined to our line of sight. One of the brightest galaxies in Leo it is surprisingly not a Messier object. NGC3190 (11.0) sg and NGC3193 (10.9) eg. Pair of galaxies located mid-way between and . NGC3226 (11.4) and NGC3227 (10.8) about 1o east of form a close ...
Pretest
... than low beams do. Also, the closer an oncoming car is to you, the greater the apparent brightness of its headlights (on low or high). 21. Low-mass stars have longer lifetimes than do high-mass stars because low-mass stars use up their fuel much more slowly. 22. Because of high temperatures in the i ...
... than low beams do. Also, the closer an oncoming car is to you, the greater the apparent brightness of its headlights (on low or high). 21. Low-mass stars have longer lifetimes than do high-mass stars because low-mass stars use up their fuel much more slowly. 22. Because of high temperatures in the i ...
Serpens
Serpens (""the Serpent"", Greek Ὄφις) is a constellation of the northern hemisphere. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations defined by the International Astronomical Union. It is unique among the modern constellations in being split into two non-contiguous parts, Serpens Caput (Serpent's Head) to the west and Serpens Cauda (Serpent's Tail) to the east. Between these two halves lies the constellation of Ophiuchus, the ""Serpent-Bearer"". In figurative representations, the body of the serpent is represented as passing behind Ophiuchus between Mu Serpentis in Serpens Caput and Nu Serpentis in Serpens Cauda.The brightest star in Serpens is the red giant star Alpha Serpentis, or Unukalhai, in Serpens Caput, with an apparent magnitude of 2.63. Also located in Serpens Caput are the naked-eye globular cluster Messier 5 and the naked-eye variables R Serpentis and Tau4 Serpentis. Notable extragalactic objects include Seyfert's Sextet, one of the densest galaxy clusters known; Arp 220, the prototypical ultraluminous infrared galaxy; and Hoag's Object, the most famous of the very rare class of galaxies known as ring galaxies.Part of the Milky Way's galactic plane passes through Serpens Cauda, which is therefore rich in galactic deep-sky objects, such as the Eagle Nebula (IC 4703) and its associated star cluster Messier 16. The nebula measures 70 light-years by 50 light-years and contains the Pillars of Creation, three dust clouds that became famous for the image taken by the Hubble Space Telescope. Other striking objects include the Red Square Nebula, one of the few objects in astronomy to take on a square shape; and Westerhout 40, a massive nearby star-forming region consisting of a molecular cloud and an H II region.