CONSTELLATION TUCANA, THE TOUCAN
... magnitude of 2.87. It marks the toucan's head. It is an orange subgiant of spectral type K3III around 199 light-years distant from the Solar System. A cool star with a surface temperature of 4300 K, it is 424 times as luminous as the sun and 37 times its diameter. It is 2.5 to 3 times as massive. Al ...
... magnitude of 2.87. It marks the toucan's head. It is an orange subgiant of spectral type K3III around 199 light-years distant from the Solar System. A cool star with a surface temperature of 4300 K, it is 424 times as luminous as the sun and 37 times its diameter. It is 2.5 to 3 times as massive. Al ...
charts_set_7
... End product is 100’s or 1000’s of dense clumps each destined to form star, binary star, etc. Hence a cloud gives birth to a cluster of stars. ...
... End product is 100’s or 1000’s of dense clumps each destined to form star, binary star, etc. Hence a cloud gives birth to a cluster of stars. ...
review
... a black hole, what would you measure as his heartbeat (apart from effects caused by his adrenaline level)? • A. It would appear to be normal because gravity has no effect on time intervals. • B. It would appear to have slowed down somewhat, but not much, because of the change of the speed of light i ...
... a black hole, what would you measure as his heartbeat (apart from effects caused by his adrenaline level)? • A. It would appear to be normal because gravity has no effect on time intervals. • B. It would appear to have slowed down somewhat, but not much, because of the change of the speed of light i ...
Molecular Line Surveys of Cygnus X: The 13CO and C18O View
... The Cygnus X region at less than 2 kpc from the Sun harbors one of the richest giant molecular cloud and high mass star forming complexes in the Milky Way. Here, we present high spectral resolution imaging of the Cygnus X complex in the 13CO and C18O 1–0 transitions. The data have been taken with th ...
... The Cygnus X region at less than 2 kpc from the Sun harbors one of the richest giant molecular cloud and high mass star forming complexes in the Milky Way. Here, we present high spectral resolution imaging of the Cygnus X complex in the 13CO and C18O 1–0 transitions. The data have been taken with th ...
Nulling Interferometry A technique for blocking the light of a bright
... Defines two 2.5-m apertures with centers 4 m apart; fringe period 0.544 arcsec ...
... Defines two 2.5-m apertures with centers 4 m apart; fringe period 0.544 arcsec ...
26.Meikle.Supernova_2002hh
... To obtain a really clear view of the ejecta, it is necessary to wait until the supernova has expanded sufficiently - this usually means waiting until it is at least 6 months old. Unfortunately, most supernovae are too far away so that by this time they are too faint to observe in detail. That is why ...
... To obtain a really clear view of the ejecta, it is necessary to wait until the supernova has expanded sufficiently - this usually means waiting until it is at least 6 months old. Unfortunately, most supernovae are too far away so that by this time they are too faint to observe in detail. That is why ...
The Scales of Things
... The first stellar parallax (of the star 61 Cygni) was measured by Friedrich Wilhelm Bessel (1784-1846) in 1838. Bessel is also known for the Bessel functions in mathematical physics. ...
... The first stellar parallax (of the star 61 Cygni) was measured by Friedrich Wilhelm Bessel (1784-1846) in 1838. Bessel is also known for the Bessel functions in mathematical physics. ...
The Life Cycle of a Star and the Hertzsprung
... stars of different ages and in different stages, all at the same time. It is also a great tool to check your understanding of the star life cycle. In the Hertzsprung-Russell (HR) Diagram, each star is represented by a dot. There are lots of stars out there, so there are lots of dots. The position of ...
... stars of different ages and in different stages, all at the same time. It is also a great tool to check your understanding of the star life cycle. In the Hertzsprung-Russell (HR) Diagram, each star is represented by a dot. There are lots of stars out there, so there are lots of dots. The position of ...
24. Life Beyond Earth: Prospects for Microbes, Civilizations, and
... Viking landers conducted experiments on the martian surface, but its overall results do not seem consistent with the presence of life in the samples it studied. One martian meteorite shows several intriguing lines of evidence of life, but each can also be explained in other ways. ...
... Viking landers conducted experiments on the martian surface, but its overall results do not seem consistent with the presence of life in the samples it studied. One martian meteorite shows several intriguing lines of evidence of life, but each can also be explained in other ways. ...
Galaxies
... Light from moving objects will appear to have different wavelengths depending on the relative motion of the source and the observer. Observers looking at an object that is moving away from them see light that has a longer wavelength than it had when it was emitted (a redshift), while observers looki ...
... Light from moving objects will appear to have different wavelengths depending on the relative motion of the source and the observer. Observers looking at an object that is moving away from them see light that has a longer wavelength than it had when it was emitted (a redshift), while observers looki ...
Thinking About Gravity
... Part 4 - Read the following paragraphs and then answer the questions that follow. Gravity: Everything has its own gravity. Everything exerts a pulling force on everything else. However, only large things have enough gravity to successfully pull other objects towards them. The force of gravity depen ...
... Part 4 - Read the following paragraphs and then answer the questions that follow. Gravity: Everything has its own gravity. Everything exerts a pulling force on everything else. However, only large things have enough gravity to successfully pull other objects towards them. The force of gravity depen ...
Nebular theory
... The Nebular Theory – How did our Solar System form? Our theory about how the solar system formed is called the nebular theory. This activity will help you understand how we think the solar system formed. 1. Write your observations from the video that shows how the planets orbit the sun. Write at lea ...
... The Nebular Theory – How did our Solar System form? Our theory about how the solar system formed is called the nebular theory. This activity will help you understand how we think the solar system formed. 1. Write your observations from the video that shows how the planets orbit the sun. Write at lea ...
Friday Feb 25th, 2000
... • Moon is Full and the Earth casts its shadow on the Moon darkening it see next screens • Umbra = cone behind earth that is about 2X the moons diameter in space at the Moon’s mean distance • Penumbra is much larger. • Red color on Moon comes from the red light refracted from all the sunsets on the e ...
... • Moon is Full and the Earth casts its shadow on the Moon darkening it see next screens • Umbra = cone behind earth that is about 2X the moons diameter in space at the Moon’s mean distance • Penumbra is much larger. • Red color on Moon comes from the red light refracted from all the sunsets on the e ...
Properties of Stars in general
... mass m in orbit around another star of unknown mass, we can deduce its mass too. • In this way, through observations of stellar binary systems we have been able to find the masses of stars of different types. • It turns out that the absolute brightness and mass of stars are related – more massive st ...
... mass m in orbit around another star of unknown mass, we can deduce its mass too. • In this way, through observations of stellar binary systems we have been able to find the masses of stars of different types. • It turns out that the absolute brightness and mass of stars are related – more massive st ...
doc - EU-HOU
... 7. You can notice two deep absorption lines of sodium (Na) close to 589.0 nm and 589.6 nm. There is a smaller one (from nickel) at 589.3 nm (we shall not use this one). Measure the position of the two Na lines more precisely. The best is to optimise the visualization box with Axis properties and to ...
... 7. You can notice two deep absorption lines of sodium (Na) close to 589.0 nm and 589.6 nm. There is a smaller one (from nickel) at 589.3 nm (we shall not use this one). Measure the position of the two Na lines more precisely. The best is to optimise the visualization box with Axis properties and to ...
EXPERIMENT 13 Balmer Series of Hydrogen - On
... Figure 1 The Balmer series of spectral lines for hydrogen. The wavelengths λ are given in nanometers. ...
... Figure 1 The Balmer series of spectral lines for hydrogen. The wavelengths λ are given in nanometers. ...
slides
... The distance from Earth of the red supergiant Betelgeuse is approximately 643 light-years. If it were to explode as a supernova, it would be one of the brightest stars in the sky. Right now, the brightest star other than the Sun is Sirius, with a luminosity of 26LSun and a distance of 8.6 light-year ...
... The distance from Earth of the red supergiant Betelgeuse is approximately 643 light-years. If it were to explode as a supernova, it would be one of the brightest stars in the sky. Right now, the brightest star other than the Sun is Sirius, with a luminosity of 26LSun and a distance of 8.6 light-year ...
sidereal day
... and sets at the same sidereal time every day, but not at the same solar (synodic) time which is our typical time system. •Because local sidereal time is the right ascension (RA) of a star on the observers meridian, it is a direct indication of whether a celestial object of known right ascension is o ...
... and sets at the same sidereal time every day, but not at the same solar (synodic) time which is our typical time system. •Because local sidereal time is the right ascension (RA) of a star on the observers meridian, it is a direct indication of whether a celestial object of known right ascension is o ...
Level 1 internal assessment resource
... The new moons of Jupiter and Saturn have been discovered in the last few years because we have better telescopes in space like the Hubble telescope and we have sent satellites to both Jupiter and Saturn. The Hubble telescope is outside the Earth’s atmosphere and not subjected to atmospheric fluctuat ...
... The new moons of Jupiter and Saturn have been discovered in the last few years because we have better telescopes in space like the Hubble telescope and we have sent satellites to both Jupiter and Saturn. The Hubble telescope is outside the Earth’s atmosphere and not subjected to atmospheric fluctuat ...
Power Point Version
... • Moon is Full and the Earth casts its shadow on the Moon darkening it see next screens • Umbra = cone behind earth that is about 2X the moons diameter in space at the Moon’s mean distance • Penumbra is much larger. • Red color on Moon comes from the red light refracted from all the sunsets on the e ...
... • Moon is Full and the Earth casts its shadow on the Moon darkening it see next screens • Umbra = cone behind earth that is about 2X the moons diameter in space at the Moon’s mean distance • Penumbra is much larger. • Red color on Moon comes from the red light refracted from all the sunsets on the e ...
Problem Set No. 5
... A one solar mass star will spend 10 billion years on the main sequence. The universe is only 13-14 billion years old. From the formula T = 1/M 2.5 and the sun’s lifetime, we see that a star of 0.9 solar masses should spend 13 billion years on the main sequence. So no stars of lower mass would have h ...
... A one solar mass star will spend 10 billion years on the main sequence. The universe is only 13-14 billion years old. From the formula T = 1/M 2.5 and the sun’s lifetime, we see that a star of 0.9 solar masses should spend 13 billion years on the main sequence. So no stars of lower mass would have h ...
International Ultraviolet Explorer
The International Ultraviolet Explorer (IUE) was an astronomical observatory satellite primarily designed to take ultraviolet spectra. The satellite was a collaborative project between NASA, the UK Science Research Council and the European Space Agency (ESA). The mission was first proposed in early 1964, by a group of scientists in the United Kingdom, and was launched on January 26, 1978 aboard a NASA Delta rocket. The mission lifetime was initially set for 3 years, but in the end it lasted almost 18 years, with the satellite being shut down in 1996. The switch-off occurred for financial reasons, while the telescope was still functioning at near original efficiency.It was the first space observatory to be operated in real time by astronomers who visited the groundstations in the United States and Europe. Astronomers made over 104,000 observations using the IUE, of objects ranging from solar system bodies to distant quasars. Among the significant scientific results from IUE data were the first large scale studies of stellar winds, accurate measurements of the way interstellar dust absorbs light, and measurements of the supernova SN1987A which showed that it defied stellar evolution theories as they then stood. When the mission ended, it was considered the most successful astronomical satellite ever.