Chapter 16 Lesson 2: What is a Star
... Ursa Major is a constellation, an area of the sky and all the stars seen in that area, in the Milky Way. 1. A constellation is like a star’s address in which scientists use to help them locate stars. 2. The Big Dipper is part of the constellation Ursa Major; there are 88 constellations. b. From Eart ...
... Ursa Major is a constellation, an area of the sky and all the stars seen in that area, in the Milky Way. 1. A constellation is like a star’s address in which scientists use to help them locate stars. 2. The Big Dipper is part of the constellation Ursa Major; there are 88 constellations. b. From Eart ...
Teacher Sheet 1. What variables does the HR Diagram compare
... What are the four important things to note about the HR Diagram? Most of the stars in the solar neighborhood fall on a well defined “Main Sequence”; there are very few “red giants”; there are very few “blue supergiants”; and there are a few faints stars near the bottom left of the diagram, which are ...
... What are the four important things to note about the HR Diagram? Most of the stars in the solar neighborhood fall on a well defined “Main Sequence”; there are very few “red giants”; there are very few “blue supergiants”; and there are a few faints stars near the bottom left of the diagram, which are ...
UCSD Students` Presentation on Star Formation
... nuclear fusion is 0.08 solar masses – 80 times the mass of Jupiter. ...
... nuclear fusion is 0.08 solar masses – 80 times the mass of Jupiter. ...
W > 1 - The Open University
... 422 (5.9/.8) ds. separation 6.6". Yellow primary/blue-white secondary. 30 Tau. (5.1/10.2) ds. separation 9.0"). Blue-white primary/reddish secondary. Lambda (). Variable star magnitude 3.3 - 3.8, period 3.95 days. Naked eye eclipsing binary. M45 oc - "The Pleiades" or "Seven Sisters". Probably the ...
... 422 (5.9/.8) ds. separation 6.6". Yellow primary/blue-white secondary. 30 Tau. (5.1/10.2) ds. separation 9.0"). Blue-white primary/reddish secondary. Lambda (). Variable star magnitude 3.3 - 3.8, period 3.95 days. Naked eye eclipsing binary. M45 oc - "The Pleiades" or "Seven Sisters". Probably the ...
File
... The explosion called a supernova occurs after a large star has become a red supergiant. When the star stops expanding because it can no longer create enough energy to support its own mass, it collapses completely and makes a giant explosion. A supernova is brighter than all the stars in the galaxy c ...
... The explosion called a supernova occurs after a large star has become a red supergiant. When the star stops expanding because it can no longer create enough energy to support its own mass, it collapses completely and makes a giant explosion. A supernova is brighter than all the stars in the galaxy c ...
Document
... b) The faintest stars seen in the cluster. c) The main sequence turnoff. d) The total number of stars in the cluster. 26. Astronomers talk about "low-mass" and "high-mass" stars with regard to their evolution. In units of solar masses, what is the dividing line, that is, the lowest mass for a high-m ...
... b) The faintest stars seen in the cluster. c) The main sequence turnoff. d) The total number of stars in the cluster. 26. Astronomers talk about "low-mass" and "high-mass" stars with regard to their evolution. In units of solar masses, what is the dividing line, that is, the lowest mass for a high-m ...
Stars - Trimble County Schools
... • As stars evolve they begin to fuse Helium and burn hydrogen – High mass stars burn Hydrogen faster than low mass stars ...
... • As stars evolve they begin to fuse Helium and burn hydrogen – High mass stars burn Hydrogen faster than low mass stars ...
Properties of Stars in general
... – This is because stars spend the major part of their life in the region of the main sequence – During this period they are burning Hydrogen into Helium in their cores. – Their position in the main sequence is dependant on their mass (more massive at the upper left). – During their life they become ...
... – This is because stars spend the major part of their life in the region of the main sequence – During this period they are burning Hydrogen into Helium in their cores. – Their position in the main sequence is dependant on their mass (more massive at the upper left). – During their life they become ...
The Milky Way
... • We define our age by trips around the Sun. • How many trips of Sun around Milky Way? R = 8.5 kpc V = 220km/s P = 2.5x108 yrs ...
... • We define our age by trips around the Sun. • How many trips of Sun around Milky Way? R = 8.5 kpc V = 220km/s P = 2.5x108 yrs ...
1. absolute brightness -
... 15. luminosity class • groups stars according to width of spectral lines ...
... 15. luminosity class • groups stars according to width of spectral lines ...
Branches of Earth Science
... Light Year- Astronomers use light years to measure the distances ______________ stars o A light year is the distance that light ______________ in one year 9,460,730,472,580.8 km 5,878,630,000,000 miles Parallax- the apparent change in the ______________ of a star in the sky. o The change is due ...
... Light Year- Astronomers use light years to measure the distances ______________ stars o A light year is the distance that light ______________ in one year 9,460,730,472,580.8 km 5,878,630,000,000 miles Parallax- the apparent change in the ______________ of a star in the sky. o The change is due ...
Photometry
... Slide the plastic overlay up and down until the main sequence on the overlay best aligns with the main sequence on your paper graph. Keep the y axes precisely parallel and over top one another. Seek a best fit for the central portion of the combined patterns. (The cool red stars in the lower right o ...
... Slide the plastic overlay up and down until the main sequence on the overlay best aligns with the main sequence on your paper graph. Keep the y axes precisely parallel and over top one another. Seek a best fit for the central portion of the combined patterns. (The cool red stars in the lower right o ...
Introduction to Stars: Their Properties
... Relationship between absolute magnitude and luminosity - bring in the Sun! 41 Cygni’s calculations ...
... Relationship between absolute magnitude and luminosity - bring in the Sun! 41 Cygni’s calculations ...
The Family of Stars
... more luminous than star A, so star B must be further away. The flux received from both stars is the same, but star B is 100 times more luminous than star A, so star B must be further away. Both stars are equally luminous, but the flux received from star A is 5 times less than from star B, so star A ...
... more luminous than star A, so star B must be further away. The flux received from both stars is the same, but star B is 100 times more luminous than star A, so star B must be further away. Both stars are equally luminous, but the flux received from star A is 5 times less than from star B, so star A ...
+(J - cloudfront.net
... spectrum and temperature of a certain star are used to determine its luminosity to be approximately 5.0 x 1031 W. The '!Pparent brightness of the star is 1.4 x 10-9 W m-2. These data can be used to detennine the distance ofihe'staifromEarth~------""----..-.--..---- - - ..(i) ...
... spectrum and temperature of a certain star are used to determine its luminosity to be approximately 5.0 x 1031 W. The '!Pparent brightness of the star is 1.4 x 10-9 W m-2. These data can be used to detennine the distance ofihe'staifromEarth~------""----..-.--..---- - - ..(i) ...
Auriga (constellation)
Auriga is one of the 48 constellations listed by the 2nd-century astronomer Ptolemy and remains one of the 88 modern constellations. Located north of the celestial equator, its name is the Latin word for ""charioteer"", associating it with various mythological charioteers, including Erichthonius and Myrtilus. Auriga is most prominent during winter evenings in the Northern Hemisphere, along with the five other constellations that have stars in the Winter Hexagon asterism. Because of its northern declination, Auriga is only visible in its entirety as far as 34° south; for observers farther south it lies partially or fully below the horizon. A large constellation, with an area of 657 square degrees, it is half the size of the largest constellation, Hydra.Its brightest star, Capella, is an unusual multiple star system among the brightest stars in the night sky. Beta Aurigae is an interesting variable star in the constellation; Epsilon Aurigae, a nearby eclipsing binary with an unusually long period, has been studied intensively. Because of its position near the winter Milky Way, Auriga has many bright open clusters in its borders, including M36, M37, and M38, popular targets for amateur astronomers. In addition, it has one prominent nebula, the Flaming Star Nebula, associated with the variable star AE Aurigae.In Chinese mythology, Auriga's stars were incorporated into several constellations, including the celestial emperors' chariots, made up of the modern constellation's brightest stars. Auriga is home to the radiant for the Aurigids, Zeta Aurigids, Delta Aurigids, and the hypothesized Iota Aurigids.