Virtual HR Diagram Lab
... Draw an arrow showing the direction of increasing mass for main sequence stars on the diagram. Label it M. (Note: this arrow only applies to main sequence stars, but that is over 90% of stars.) ...
... Draw an arrow showing the direction of increasing mass for main sequence stars on the diagram. Label it M. (Note: this arrow only applies to main sequence stars, but that is over 90% of stars.) ...
Cepheus (constellation)
... supergiant star 980 light-years from Earth. It was discovered to be variable by John Goodricke in 1784. It varies between 3.5m and 4.4m over a period of 5 days and 9 hours. The Cepheids are a class of pulsating variable stars; Delta Cephei has a minimum size of 40 solar diameters and a maximum size ...
... supergiant star 980 light-years from Earth. It was discovered to be variable by John Goodricke in 1784. It varies between 3.5m and 4.4m over a period of 5 days and 9 hours. The Cepheids are a class of pulsating variable stars; Delta Cephei has a minimum size of 40 solar diameters and a maximum size ...
stars-notes
... as seen from Earth. The absolute magnitude is the brightness that a star would have at a distance of 32.6 light-years from Earth. • If all stars were the same distance away, their absolute magnitudes would be the same as their apparent magnitudes. ...
... as seen from Earth. The absolute magnitude is the brightness that a star would have at a distance of 32.6 light-years from Earth. • If all stars were the same distance away, their absolute magnitudes would be the same as their apparent magnitudes. ...
The Evening Sky Map
... Conjunction – An alignment of two celestial bodies such that they present the least angular separation as viewed from Earth. Constellation – A defined area of the sky containing a star pattern. Diffuse Nebula – A cloud of gas illuminated by nearby stars. Double Star – Two stars that appear close to ...
... Conjunction – An alignment of two celestial bodies such that they present the least angular separation as viewed from Earth. Constellation – A defined area of the sky containing a star pattern. Diffuse Nebula – A cloud of gas illuminated by nearby stars. Double Star – Two stars that appear close to ...
The Milky Way Model - University of Chicago
... came to be known as the Milky Way. For centuries astronomers and philosophers debated the true nature of this cosmic smear: was it a cloud of gas and dust or a collection of closely packed stars, was it part of the Earth’s atmosphere or at great astronomical distances? These days, looking up at the ...
... came to be known as the Milky Way. For centuries astronomers and philosophers debated the true nature of this cosmic smear: was it a cloud of gas and dust or a collection of closely packed stars, was it part of the Earth’s atmosphere or at great astronomical distances? These days, looking up at the ...
Betelgeuse
... Red supergiant star Right shoulder of Orion constellation derived from the Arabic word bat aldshauzâ, which means “the giant’s shoulder.” or “armpit” 8.5 million yrs old (Sun is 4.6 billion yrs old) 600 light years away 1000 times bigger than the Sun ...
... Red supergiant star Right shoulder of Orion constellation derived from the Arabic word bat aldshauzâ, which means “the giant’s shoulder.” or “armpit” 8.5 million yrs old (Sun is 4.6 billion yrs old) 600 light years away 1000 times bigger than the Sun ...
Constellation Classification Cards*
... numbers, e.g., Thuban = 3.65, are the dimmest stars. For Set B, there are six cards with three numbers. Stars with three numbers and a slash, e.g., Mintaka = 2.23 (3.2/3.3), are binary stars. Use the first number given for the combined brightness of the two stars when forming the graph. Stars with t ...
... numbers, e.g., Thuban = 3.65, are the dimmest stars. For Set B, there are six cards with three numbers. Stars with three numbers and a slash, e.g., Mintaka = 2.23 (3.2/3.3), are binary stars. Use the first number given for the combined brightness of the two stars when forming the graph. Stars with t ...
Upcoming Events
... When you think about the new stars forming in the Milky Way, you probably think of the giant star-forming regions like the Orion Nebula, containing thousands of new stars with light so bright it's visible to the naked eye. At over 400 parsecs (1,300 light years) distant, it's one of the most spectac ...
... When you think about the new stars forming in the Milky Way, you probably think of the giant star-forming regions like the Orion Nebula, containing thousands of new stars with light so bright it's visible to the naked eye. At over 400 parsecs (1,300 light years) distant, it's one of the most spectac ...
Packet 3
... 10. What are the 2 types of motion of stars? A) _______________________ B) _____________________ 11a. How’s the actual motion of star’s measured? 11b. What causes the apparent motion of stars? 12. How come when you go outside on an October night you see different stars than on an April night? 13. Th ...
... 10. What are the 2 types of motion of stars? A) _______________________ B) _____________________ 11a. How’s the actual motion of star’s measured? 11b. What causes the apparent motion of stars? 12. How come when you go outside on an October night you see different stars than on an April night? 13. Th ...
PHYS_3380_082615_bw - The University of Texas at Dallas
... them to tell what month it is. For example, Scorpius is only visible in the northern hemisphere's evening sky in the summer. - many of the myths associated with the constellations thought to have been invented to help the farmers remember them - made up stories about them ...
... them to tell what month it is. For example, Scorpius is only visible in the northern hemisphere's evening sky in the summer. - many of the myths associated with the constellations thought to have been invented to help the farmers remember them - made up stories about them ...
100 Binocular Deep Sky Objects
... Clusters, Globulars and Dark Nebula in Scutum M11 - M26 - NGC 6712 - NGC 6664 in Scutum M11 – R Scutii, Stf 2391 and HVI 50 All in one field of view we have a dense open cluster, two double stars and a variable. M11 looks like a globular. The dense open cluster M11 is right next to a pair of double ...
... Clusters, Globulars and Dark Nebula in Scutum M11 - M26 - NGC 6712 - NGC 6664 in Scutum M11 – R Scutii, Stf 2391 and HVI 50 All in one field of view we have a dense open cluster, two double stars and a variable. M11 looks like a globular. The dense open cluster M11 is right next to a pair of double ...
Stars I
... Giant, and White Dwarf Stars • The Family of Stars • What are the most/least common kinds of stars? • Why are red dwarfs so common? ...
... Giant, and White Dwarf Stars • The Family of Stars • What are the most/least common kinds of stars? • Why are red dwarfs so common? ...
The colours of the Universe, the amateur astronomical spectroscopy.
... from Rspec's library at the graph which was generated in RSpec program. The main emission lines in my comet's C/2014 Q2 Lovejoy spectrum are spectral lines C2, CN, NH2, CH+, CH, CO+. Clearly visible are molecular carbon lines C 2 and cyanide CN, which are located near 4700 i 5100 Å, which are respon ...
... from Rspec's library at the graph which was generated in RSpec program. The main emission lines in my comet's C/2014 Q2 Lovejoy spectrum are spectral lines C2, CN, NH2, CH+, CH, CO+. Clearly visible are molecular carbon lines C 2 and cyanide CN, which are located near 4700 i 5100 Å, which are respon ...
Chapter 09 - The Independent School
... in astronomy is very difficult. To discover the properties of stars, astronomers must use their telescopes and spectrographs in ingenious ways to learn the secrets hidden in starlight. The result is a family portrait of the stars. Here you will find answers to five essential questions about stars: • ...
... in astronomy is very difficult. To discover the properties of stars, astronomers must use their telescopes and spectrographs in ingenious ways to learn the secrets hidden in starlight. The result is a family portrait of the stars. Here you will find answers to five essential questions about stars: • ...
The population of young stars in Orion A: X-rays and... Ignazio Pillitteri , S. J. Wolk , L. Allen
... and by means of X-rays fluxes, luminosities and plasma temperatures from XMM-Newton observations. The X-ray part of SOXS is composed by 7 XMM-Newton observations to which we have added 3 archive pointings. The maps below are the RGB mosaics of X-ray images of EPIC on board XMM-Newton and IR images o ...
... and by means of X-rays fluxes, luminosities and plasma temperatures from XMM-Newton observations. The X-ray part of SOXS is composed by 7 XMM-Newton observations to which we have added 3 archive pointings. The maps below are the RGB mosaics of X-ray images of EPIC on board XMM-Newton and IR images o ...
Sky Maps Teacher`s Guide - Northern Stars Planetarium
... beginning to rise in the east. He knew that there might already be animals drinking at the pond. Not wanting to scare anything away, he became very, very quiet. Shhhhh. And sure enough, when he got close to the clearing he could hear something up ahead. He could hear lots of ……GROWLING! When he peek ...
... beginning to rise in the east. He knew that there might already be animals drinking at the pond. Not wanting to scare anything away, he became very, very quiet. Shhhhh. And sure enough, when he got close to the clearing he could hear something up ahead. He could hear lots of ……GROWLING! When he peek ...
Sequencing the Stars
... seem to be too bright. These are nearby stars that don’t belong to the globular cluster but just happen to be in the field of view. I like globular clusters so much that I tend to revisit my favorites each year and retake their picture. Hence, I can compare pairs of HR-diagrams of the same cluster t ...
... seem to be too bright. These are nearby stars that don’t belong to the globular cluster but just happen to be in the field of view. I like globular clusters so much that I tend to revisit my favorites each year and retake their picture. Hence, I can compare pairs of HR-diagrams of the same cluster t ...
Chapter 1
... The constellation of Orion is one of the most discernable patterns in the northern hemisphere, and has acted as an important beacon for generations throughout history. Orion stands central in many mythological tales. One of my personal favorites describes the figure of Orion, the hunter, standing by ...
... The constellation of Orion is one of the most discernable patterns in the northern hemisphere, and has acted as an important beacon for generations throughout history. Orion stands central in many mythological tales. One of my personal favorites describes the figure of Orion, the hunter, standing by ...
3.1 Introduction
... presumably born out of the same interstellar cloud) allows us to consider evolutionary effects on the HR diagram. The Pleiades (Figure 3.7) are a famous stellar cluster visible from northern skies in the winter. At a distance of only 120 pc, it is one of the closest open star cluster. It consists of ...
... presumably born out of the same interstellar cloud) allows us to consider evolutionary effects on the HR diagram. The Pleiades (Figure 3.7) are a famous stellar cluster visible from northern skies in the winter. At a distance of only 120 pc, it is one of the closest open star cluster. It consists of ...
luminosities
... The flux received from the light is proportional to its intrinsic brightness or luminosity (L) and inversely proportional to the square of the distance (d): ...
... The flux received from the light is proportional to its intrinsic brightness or luminosity (L) and inversely proportional to the square of the distance (d): ...
CONSTELLATION DELPHINUS, THE DOLPHIN
... International Astronomical Union. It is one of the smaller constellations, ranked 69th in size. Delphinus' brightest stars form a distinctive asterism that can easily be recognized. It is bordered (clockwise from north) by Vulpecula the fox, Sagitta the arrow, Aquila the eagle, Aquarius the water-ca ...
... International Astronomical Union. It is one of the smaller constellations, ranked 69th in size. Delphinus' brightest stars form a distinctive asterism that can easily be recognized. It is bordered (clockwise from north) by Vulpecula the fox, Sagitta the arrow, Aquila the eagle, Aquarius the water-ca ...
From the reviews - Astrofoto Portugal
... Constellations & The Brightest Stars, The Sky Seen From The Southern Hemisphere, The Milky Way, Celestial Chart, and the Sky & The Four Seasons. The main text is follow ed by 12 appendices containing useful data for the budding observer. The opening chapter deals with finding a good viewing location ...
... Constellations & The Brightest Stars, The Sky Seen From The Southern Hemisphere, The Milky Way, Celestial Chart, and the Sky & The Four Seasons. The main text is follow ed by 12 appendices containing useful data for the budding observer. The opening chapter deals with finding a good viewing location ...
slides - Indico
... • Most interesting (e.g., r-process / s-process-enhanced) stars thus identified taken to, e.g., Subaru/Keck/LBT, etc. for higher S/N determinations of elemental abundance patterns • Construction of astrophysically-consistent scenarios to account for patterns and frequency of n-capture (and other) ab ...
... • Most interesting (e.g., r-process / s-process-enhanced) stars thus identified taken to, e.g., Subaru/Keck/LBT, etc. for higher S/N determinations of elemental abundance patterns • Construction of astrophysically-consistent scenarios to account for patterns and frequency of n-capture (and other) ab ...
Orion (constellation)
Orion is a prominent constellation located on the celestial equator and visible throughout the world. It is one of the most conspicuous and recognizable constellations in the night sky. It was named after Orion, a hunter in Greek mythology. Its brightest stars are Rigel (Beta Orionis) and Betelgeuse (Alpha Orionis), a blue-white and a red supergiant, respectively.