1 WHY DO THE STARS IN ORION LOOK SO DIFFERENT FROM
... The apparent magnitude of a star (as we view it from earth) gives no indication of the stars luminosity. In astronomy the luminosity of a star is as if one were viewing it from a distance of 10 parsecs. For example, Algiebba viewed from 10 pc is 6,604 times more luminous than our sun, or can be expr ...
... The apparent magnitude of a star (as we view it from earth) gives no indication of the stars luminosity. In astronomy the luminosity of a star is as if one were viewing it from a distance of 10 parsecs. For example, Algiebba viewed from 10 pc is 6,604 times more luminous than our sun, or can be expr ...
ASTRONOMY: WHAT DO YOU NEED TO KNOW
... Ionized gasses surrounding a white dwarf seen as the result of slow gas ejected by the red giant being compressed by the fast gases as the red giant collapses into a white dwarf Know the characteristics and lifespan characteristics of white dwarfs. Does not undergo nuclear fusion but rather contains ...
... Ionized gasses surrounding a white dwarf seen as the result of slow gas ejected by the red giant being compressed by the fast gases as the red giant collapses into a white dwarf Know the characteristics and lifespan characteristics of white dwarfs. Does not undergo nuclear fusion but rather contains ...
The Montreal White Dwarf Database: a Tool for the Community
... available data about the spectroscopically identified white dwarf that have been discovered to this day. Interactive tables and tools to easily make plots, histograms or display data have also been implemented (see below). The structure and philosophy behind MWDD was inspired in parts by other datab ...
... available data about the spectroscopically identified white dwarf that have been discovered to this day. Interactive tables and tools to easily make plots, histograms or display data have also been implemented (see below). The structure and philosophy behind MWDD was inspired in parts by other datab ...
The Orion 190-mm Maksutov-Newtonian
... the CCD camera. Today, most DSLR and large-format CCD cameras have imaging chips that are four times larger than that of the ST-2000 CCD camera and the normal optical aberrations in these two instruments become apparent near the edges ...
... the CCD camera. Today, most DSLR and large-format CCD cameras have imaging chips that are four times larger than that of the ST-2000 CCD camera and the normal optical aberrations in these two instruments become apparent near the edges ...
Miss Nevoral - Ms. Nevoral`s site
... 3. Define celestial bodies: General term for all objects in the sky Sun, moon, planets, and stars. 4. The development of the telescope allowed astronomers to see more celestial bodies. 5. Who was the first astronomer to identify other galaxies besides the Milky Way? What did he notice about the di ...
... 3. Define celestial bodies: General term for all objects in the sky Sun, moon, planets, and stars. 4. The development of the telescope allowed astronomers to see more celestial bodies. 5. Who was the first astronomer to identify other galaxies besides the Milky Way? What did he notice about the di ...
answers2006_07_BC
... the past (good for Big Bang, bad for Steady State) near-uniformity over the whole sky this is surprising because different “sides” of the sky should never have exchanged photons, and therefore do not know each other’s temperature – it is one of the key pieces of evidence for inflation very small tem ...
... the past (good for Big Bang, bad for Steady State) near-uniformity over the whole sky this is surprising because different “sides” of the sky should never have exchanged photons, and therefore do not know each other’s temperature – it is one of the key pieces of evidence for inflation very small tem ...
Higher Doppler Effect and Red Shift Questions
... 9. A distant star is travelling directly away from Earth at 2.1 x107ms-1. a) Calculate the Red Shift Ratio Z for this star. b) A hydrogen line of the spectrum of light from this star is measured to be 486nm. Calculate the wavelength of this line when it is observed from a Hydrogen source on Earth. ...
... 9. A distant star is travelling directly away from Earth at 2.1 x107ms-1. a) Calculate the Red Shift Ratio Z for this star. b) A hydrogen line of the spectrum of light from this star is measured to be 486nm. Calculate the wavelength of this line when it is observed from a Hydrogen source on Earth. ...
Overview of Technologies for Direct Optical Imaging of Exoplanets
... The first relevant scale for space imaging missions is the “medium mission” scale (<$800M), where it becomes reasonable to consider 1.5m class telescopes and very high contrast coronagraphic instruments (10-9-10-10) (mission concepts: PECO, ACCESS, EPIC). This would allow measurements of exozodiacal ...
... The first relevant scale for space imaging missions is the “medium mission” scale (<$800M), where it becomes reasonable to consider 1.5m class telescopes and very high contrast coronagraphic instruments (10-9-10-10) (mission concepts: PECO, ACCESS, EPIC). This would allow measurements of exozodiacal ...
The Rocket Science of Launching Stellar Disks
... • Leaves behind disk • For proto-sun, this collapsed into planets, earth, us ...
... • Leaves behind disk • For proto-sun, this collapsed into planets, earth, us ...
Measuring Starlight Deflection during the 2017 Eclipse: Repeating
... dimmer stars that fall near the edge of the field of view is only about 0.4 arcsec, but appear on a flatter background. Since the FLI Microline camera downloads images in less than one second and no mechanical shutter is required, the plan is to take as many images as possible with both exposure dur ...
... dimmer stars that fall near the edge of the field of view is only about 0.4 arcsec, but appear on a flatter background. Since the FLI Microline camera downloads images in less than one second and no mechanical shutter is required, the plan is to take as many images as possible with both exposure dur ...
HOW TO TAKE GREAT IMAGES John Smith
... noise. If you look at a weak TV signal, you see what is sometimes called “snow”. That is noise, due to the signal not being strong enough. Similarly, you hear static when you listen to a distant signal on the radio. Every time we measure the data in a pixel, there is some uncertainty, noise that com ...
... noise. If you look at a weak TV signal, you see what is sometimes called “snow”. That is noise, due to the signal not being strong enough. Similarly, you hear static when you listen to a distant signal on the radio. Every time we measure the data in a pixel, there is some uncertainty, noise that com ...
SOLUTIONS TO PROBLEM SET # 2
... from the Sun, and is moving away from the Sun at a speed of 17,200 meters per second. If it were traveling directly toward Proxima Centauri, and maintained its present speed for the entire journey, how long would it take to reach Proxima Centauri? The distance from the Sun to Proxima Centauri is d p ...
... from the Sun, and is moving away from the Sun at a speed of 17,200 meters per second. If it were traveling directly toward Proxima Centauri, and maintained its present speed for the entire journey, how long would it take to reach Proxima Centauri? The distance from the Sun to Proxima Centauri is d p ...
Hubble`s Expansion of the Universe
... A supernova marks the end of a star’s life in an extremely energetic explosion. When a supernova explodes, its light intensity brightens to a peak, and then gradually fades over time. For one particular classification, type Ia supernovae, this peak always reaches the same true brightness (absolute m ...
... A supernova marks the end of a star’s life in an extremely energetic explosion. When a supernova explodes, its light intensity brightens to a peak, and then gradually fades over time. For one particular classification, type Ia supernovae, this peak always reaches the same true brightness (absolute m ...
Astronomy 401 Lecture 1 Overview of the Universe 1 Class overview
... A small object nearby may subtend the same solid angle as a larger object farther away. For example, although the Moon is much smaller than the Sun, it is also much closer to Earth. From any point on Earth, both objects have approximately the same solid angle and apparent size. This is evident durin ...
... A small object nearby may subtend the same solid angle as a larger object farther away. For example, although the Moon is much smaller than the Sun, it is also much closer to Earth. From any point on Earth, both objects have approximately the same solid angle and apparent size. This is evident durin ...
Exam 3 Study Guide
... Questions you can answer to study. See if you can write your own multiple choice question for these topics! What are three properties that distinguish elliptical galaxies from spiral galaxies? How do spiral galaxies form? How do elliptical galaxies form? Where in a spiral galaxy might you find star ...
... Questions you can answer to study. See if you can write your own multiple choice question for these topics! What are three properties that distinguish elliptical galaxies from spiral galaxies? How do spiral galaxies form? How do elliptical galaxies form? Where in a spiral galaxy might you find star ...
Diapositiva 1
... by George Herbig and Guillermo Haro in the late 40’ s of the past century. These enigmatic objects showed rather peculiar characteristics: they were small nebulae (a few tens of arcsec in size), with an strange spectrum (very different from any known at that time) and, most intriguing, far away from ...
... by George Herbig and Guillermo Haro in the late 40’ s of the past century. These enigmatic objects showed rather peculiar characteristics: they were small nebulae (a few tens of arcsec in size), with an strange spectrum (very different from any known at that time) and, most intriguing, far away from ...
The Formation of Stars and Solar Systems
... few atoms. These cosmic spaces comprise dense clouds of dust and gas left over from galaxy formation. • Since these clouds are cooler than most places, they are perfect breeding grounds for star birth. When the density is 1,000 times greater than what is found in normal interstellar space, many atom ...
... few atoms. These cosmic spaces comprise dense clouds of dust and gas left over from galaxy formation. • Since these clouds are cooler than most places, they are perfect breeding grounds for star birth. When the density is 1,000 times greater than what is found in normal interstellar space, many atom ...
Our Galaxy -- The Milky Way PowerPoint
... Infrared & Radio Observations • The Milky Way’s nucleus – Extremely crowded with stars • One million stars as bright as Sirius • As bright as 200 full moons ...
... Infrared & Radio Observations • The Milky Way’s nucleus – Extremely crowded with stars • One million stars as bright as Sirius • As bright as 200 full moons ...
Habitability of planets around Red Dwarf Stars
... composition 0.51 Mo star has 0.077 L (after Lang, 1991) its MS lifetime will be ∼ 6.6 × 13.0 Gyr = 86 Gyr. Moreover (Kartunnen et al., 1994) virtually complete convective overturn in lower mass stars means that a much higher fraction of a star’s hydrogen content will be available as nuclear fuel th ...
... composition 0.51 Mo star has 0.077 L (after Lang, 1991) its MS lifetime will be ∼ 6.6 × 13.0 Gyr = 86 Gyr. Moreover (Kartunnen et al., 1994) virtually complete convective overturn in lower mass stars means that a much higher fraction of a star’s hydrogen content will be available as nuclear fuel th ...
Stargazer - Everett Astronomical Society
... In addition you will be able subscribe to Sky and Telescope for $7 off the normal subscription rate, contact the treasurer (Carol Gore) for more information. http://everettastro.org/application.htm (When renewing your subscription to Sky & Telescope you should send your S&T renewal form along with a ...
... In addition you will be able subscribe to Sky and Telescope for $7 off the normal subscription rate, contact the treasurer (Carol Gore) for more information. http://everettastro.org/application.htm (When renewing your subscription to Sky & Telescope you should send your S&T renewal form along with a ...
Triggered Star Formation by Massive Stars in Star
... BATC Workshop 2005.08.11 Weihai NGC6823 by BATC ...
... BATC Workshop 2005.08.11 Weihai NGC6823 by BATC ...
The Large Binocular Telescope`s ARGOS ground
... line in 2012, LINC-NIRVANA will exploit the 10 milliarcsec resolution of the coherently combined telescope apertures down at 1 µm wavelength. To give an example of its application, at this resolution, and with LBT’s sensitivity, equivalent to a 12 m single aperture, individual stars in giant ellipti ...
... line in 2012, LINC-NIRVANA will exploit the 10 milliarcsec resolution of the coherently combined telescope apertures down at 1 µm wavelength. To give an example of its application, at this resolution, and with LBT’s sensitivity, equivalent to a 12 m single aperture, individual stars in giant ellipti ...
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.