Fate of Stars
... HertzprungRussell Diagram Stars with larger sizes are brighter then a smaller star with the same surface temperature ...
... HertzprungRussell Diagram Stars with larger sizes are brighter then a smaller star with the same surface temperature ...
IMR_Star Theater
... Your planetarium projects stars that are visible from the northern hemisphere. To see all the stars that are visible from the northern hemisphere, slowly rotate the light wand to the left (westward) while the projection lamp is on. Do you notice that some stars around Polaris never set while some of ...
... Your planetarium projects stars that are visible from the northern hemisphere. To see all the stars that are visible from the northern hemisphere, slowly rotate the light wand to the left (westward) while the projection lamp is on. Do you notice that some stars around Polaris never set while some of ...
AAS Poster, NM 2002: "The Discovery of New
... entire galaxy much deeper than earlier studies. New candidates, once spectroscopically confirmed, might then alter the WC/WN ...
... entire galaxy much deeper than earlier studies. New candidates, once spectroscopically confirmed, might then alter the WC/WN ...
91KB - NZQA
... become dense. As it condenses, the particles become hotter (due to friction) and eventually become hot enough to become a protostar. Rigel birth explained with associated energy changes: Dense GMC collapsing changes Gravitational Potential Energy into heat energy. When this heat energy temperature r ...
... become dense. As it condenses, the particles become hotter (due to friction) and eventually become hot enough to become a protostar. Rigel birth explained with associated energy changes: Dense GMC collapsing changes Gravitational Potential Energy into heat energy. When this heat energy temperature r ...
apparent retrograde motion - Indiana University Astronomy
... On short term (diurnal motion), planets appear to move with the stars, east to west, making a full circuit around the sky (meridian to meridian) in approximately one day Most of the time, planets move slowly eastward each day relative to the stars: different planets at different rates What cause ...
... On short term (diurnal motion), planets appear to move with the stars, east to west, making a full circuit around the sky (meridian to meridian) in approximately one day Most of the time, planets move slowly eastward each day relative to the stars: different planets at different rates What cause ...
THE INCREDIBLE ORIGIN OF THE CHEMICAL ELEMENTS
... Particles of matter falling towards a common centre of gravity accelerate and so gain kinetic energy: the matter becomes hotter. In the centre of such a mass of matter, the temperature eventually becomes high enough (about 10 million °C) to allow nuclear fusion to take place. Hydrogen nuclei collid ...
... Particles of matter falling towards a common centre of gravity accelerate and so gain kinetic energy: the matter becomes hotter. In the centre of such a mass of matter, the temperature eventually becomes high enough (about 10 million °C) to allow nuclear fusion to take place. Hydrogen nuclei collid ...
145KB - NZQA
... become dense. As it condenses, the particles become hotter (due to friction) and eventually become hot enough to become a protostar. Rigel birth explained with associated energy changes: Dense GMC collapsing changes Gravitational Potential Energy into heat energy. When this heat energy temperature r ...
... become dense. As it condenses, the particles become hotter (due to friction) and eventually become hot enough to become a protostar. Rigel birth explained with associated energy changes: Dense GMC collapsing changes Gravitational Potential Energy into heat energy. When this heat energy temperature r ...
No Slide Title
... • European Astronomy Society meeting 3 days later – in Leicester • brightest ever cosmic X-ray source after 2 weeks • attracting alarming headlines • but priority target for radio and optical telescopes worldwide ...
... • European Astronomy Society meeting 3 days later – in Leicester • brightest ever cosmic X-ray source after 2 weeks • attracting alarming headlines • but priority target for radio and optical telescopes worldwide ...
Where do we come from?
... We see galaxies with large redshift (implying large distance, implying distant past). ...
... We see galaxies with large redshift (implying large distance, implying distant past). ...
Lecture 14
... Gravity causes gas cloud to shrink and fragment. Cores of shrinking cloud fragments heat up. Collapse only continues if the cloud cools by radiating away heat. If the initial cloud was spinning a protostellar disk is formed. Protostars approach the main sequence from the right hand side of the HR di ...
... Gravity causes gas cloud to shrink and fragment. Cores of shrinking cloud fragments heat up. Collapse only continues if the cloud cools by radiating away heat. If the initial cloud was spinning a protostellar disk is formed. Protostars approach the main sequence from the right hand side of the HR di ...
Other Planetary Systems
... First, do we see evidence of proto-planetary disks around nearby stars? Remember than this distributed material will be cool, not glowing in the visible. So we use infrared (or even radio radiation) to hunt for such disks. ...
... First, do we see evidence of proto-planetary disks around nearby stars? Remember than this distributed material will be cool, not glowing in the visible. So we use infrared (or even radio radiation) to hunt for such disks. ...
LET THE STARS GET IN YOUR EYES SKY MOTIONS
... Stars come in all sizes and colors. Betelgeuse in Orion is one of the largest stars known. It is over 800 times larger than our Sun. The smallest visible stars are white dwarfs which are about the size of the Earth. Neutron stars are about the size of a city but are only detected by radio waves. Our ...
... Stars come in all sizes and colors. Betelgeuse in Orion is one of the largest stars known. It is over 800 times larger than our Sun. The smallest visible stars are white dwarfs which are about the size of the Earth. Neutron stars are about the size of a city but are only detected by radio waves. Our ...
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.