CELESTIAL MANUAL:CELESTIAL MANUAL
... The Celestial Watch is a precisely designed analog quartz watch that displays not only the current time but also the correct positions of the constellations as they move across the sky. The Celestial Watch shows azimuth (bearing) and altitude (angular position above the horizon) of the major fixed s ...
... The Celestial Watch is a precisely designed analog quartz watch that displays not only the current time but also the correct positions of the constellations as they move across the sky. The Celestial Watch shows azimuth (bearing) and altitude (angular position above the horizon) of the major fixed s ...
134-Notes-a
... of 1 parsec has a parallax angle of one arsecond (hence the name “par”-“sec”). Figure 1 shows schematically how the parsec is defined. Finally we should mention the astronomical unit (AU), which is the average distance between the earth and the sun. It is very useful when speaking of distances withi ...
... of 1 parsec has a parallax angle of one arsecond (hence the name “par”-“sec”). Figure 1 shows schematically how the parsec is defined. Finally we should mention the astronomical unit (AU), which is the average distance between the earth and the sun. It is very useful when speaking of distances withi ...
November News Letter - Boise Astronomical Society
... locate the constellation, however. Look right above the moon for two parallel lines of stars. These are the twins. The lines are horizontal and their brightest stars are called Castor and Pollux. These represent the heads of the twins and are located to the left side of the moon. Pollux is the brigh ...
... locate the constellation, however. Look right above the moon for two parallel lines of stars. These are the twins. The lines are horizontal and their brightest stars are called Castor and Pollux. These represent the heads of the twins and are located to the left side of the moon. Pollux is the brigh ...
File
... The last and final star is called the Alpheratz. This connects all three stars of Pegasus. It is the most prominent in the sky towards the end of Summer and through Autumn for the northern latitudes. ...
... The last and final star is called the Alpheratz. This connects all three stars of Pegasus. It is the most prominent in the sky towards the end of Summer and through Autumn for the northern latitudes. ...
Description of Pictures In the Dome
... The Pleiades, or seven sisters, (M 45) is an open star cluster containing relatively young hot B-type stars located in the constellation of Taurus. It is among the nearest star clusters to Earth and is the cluster most obvious to the naked eye in the night sky. Pleiades has several meanings in diff ...
... The Pleiades, or seven sisters, (M 45) is an open star cluster containing relatively young hot B-type stars located in the constellation of Taurus. It is among the nearest star clusters to Earth and is the cluster most obvious to the naked eye in the night sky. Pleiades has several meanings in diff ...
Red Dwarf Stars: Ages, Rotation, Magnetic
... tionary age. Two recent independent age determinations for the 40 Eri B are essentially identical, yielding an age of 5.1±0.7 Gyr (Ballouz et al. 2010; Zhao et al. 2011). We used this WD age to calibrate the measured Ca ii HK and coronal X-ray luminosity (LX ) of the K1 V and M4.5 V stars. We have b ...
... tionary age. Two recent independent age determinations for the 40 Eri B are essentially identical, yielding an age of 5.1±0.7 Gyr (Ballouz et al. 2010; Zhao et al. 2011). We used this WD age to calibrate the measured Ca ii HK and coronal X-ray luminosity (LX ) of the K1 V and M4.5 V stars. We have b ...
Labeling the HR Diagram - Mastering Physics Answers
... Spectral type is related to surface temperature, with stars of spectral type O having the highest surface temperature and stars of spectral type M having the lowest surface temperature. In other words, spectral type increases to the left on the HR diagram. Now proceed to Part E to determine how the ...
... Spectral type is related to surface temperature, with stars of spectral type O having the highest surface temperature and stars of spectral type M having the lowest surface temperature. In other words, spectral type increases to the left on the HR diagram. Now proceed to Part E to determine how the ...
1 Introduction - High Point University
... primary energy source. Over 90% of all stars fall in this region on the H-R diagram. Move the active cursor up and down the main sequence and explore the different values of stellar radius. Describe the sizes of stars along the main sequence. What are stars like near the top of the main sequence, th ...
... primary energy source. Over 90% of all stars fall in this region on the H-R diagram. Move the active cursor up and down the main sequence and explore the different values of stellar radius. Describe the sizes of stars along the main sequence. What are stars like near the top of the main sequence, th ...
The Properties of Stars Early in its history, the universe organized
... In the early part of the twentieth century, the idea occurred independently to the astronomers Ejnar Hertzsprung and Henry N. Russell to plot the luminosities of stars on a vertical axis with their surface temperatures on a horizontal axis. In their honor, such plots are now known as Hertzsprung-Rus ...
... In the early part of the twentieth century, the idea occurred independently to the astronomers Ejnar Hertzsprung and Henry N. Russell to plot the luminosities of stars on a vertical axis with their surface temperatures on a horizontal axis. In their honor, such plots are now known as Hertzsprung-Rus ...
Determination of kinetic energies of stars using Hipparcos data *
... no systematic increment of its values while moving along the main sequence. The difference in the kinetic energies that remains, can be explained by inaccuracy in mass N 1526 determination or other reasons and needs to studied in 7085 detail. In our opinion, there are two directions, in which the pr ...
... no systematic increment of its values while moving along the main sequence. The difference in the kinetic energies that remains, can be explained by inaccuracy in mass N 1526 determination or other reasons and needs to studied in 7085 detail. In our opinion, there are two directions, in which the pr ...
Star Trek ObservING List - Adirondack astronomy retreat
... In the episode “Terratin Incident” it is said that Terra 10 orbited the star Cepheus, Cepheus is really a constellation. Argo, from “The Ambergris Element” is the name of a planet. Argo was also the name of a boat from Greek Mythology. In “Bem” the planet’s name is Pandro This is also happends to be ...
... In the episode “Terratin Incident” it is said that Terra 10 orbited the star Cepheus, Cepheus is really a constellation. Argo, from “The Ambergris Element” is the name of a planet. Argo was also the name of a boat from Greek Mythology. In “Bem” the planet’s name is Pandro This is also happends to be ...
Here - Astrophysics Research Institute
... • Celestial Meridian – a great circle which passes through Zenith and the North & South celestial poles. It is perpendicular to the horizon. If you stand facing North, the meridian is a line that passes from north on the horizon, directly over your head, to south on the horizon behind you ...
... • Celestial Meridian – a great circle which passes through Zenith and the North & South celestial poles. It is perpendicular to the horizon. If you stand facing North, the meridian is a line that passes from north on the horizon, directly over your head, to south on the horizon behind you ...
B LOG - Science Centre
... Betelgeuse (alpha Orionis) is a massive red supergiant that varies in brightness. Bellatrix (gamma Orionis), is blue giant star. Its name means “female warrior”, indicating that Orion may not have always been seen as a male hunter. Bellatrix is the closest of Orion’s stars (243 light years away). Ri ...
... Betelgeuse (alpha Orionis) is a massive red supergiant that varies in brightness. Bellatrix (gamma Orionis), is blue giant star. Its name means “female warrior”, indicating that Orion may not have always been seen as a male hunter. Bellatrix is the closest of Orion’s stars (243 light years away). Ri ...
A Collection of Curricula for the STARLAB Polynesian Voyaging
... names. In more modern times, 40 other constellations have been added. Some of these are just "space fillers" between more prominent groups. Others are groups of stars in the Southern sky, too far south to be seen to advantage by these ancient astronomers, most of whom lived in Greece, Egypt, Persia, ...
... names. In more modern times, 40 other constellations have been added. Some of these are just "space fillers" between more prominent groups. Others are groups of stars in the Southern sky, too far south to be seen to advantage by these ancient astronomers, most of whom lived in Greece, Egypt, Persia, ...
ASTRONOMY 113 Laboratory Lab 5: Spectral Classification of the
... Section 2 - A Spectroscopic Study of the Pleiades Star Cluster Some of the most beautiful objects in the sky are star clusters, groups of stars ranging in number from a few hundreds of stars ("open clusters") to a few million stars ("globular star clusters"). All of the stars in these clusters are ...
... Section 2 - A Spectroscopic Study of the Pleiades Star Cluster Some of the most beautiful objects in the sky are star clusters, groups of stars ranging in number from a few hundreds of stars ("open clusters") to a few million stars ("globular star clusters"). All of the stars in these clusters are ...
The Earth and Man In the Universe
... is a vast annular agglomeration of stars, and that we are situated toward the center of this agglomeration. Sir John Herschel, who made a thorough study of the Milky Way at the Cape of Good Hope as well as in England, thought the southern portion was nearer to us than the northern, because of its gr ...
... is a vast annular agglomeration of stars, and that we are situated toward the center of this agglomeration. Sir John Herschel, who made a thorough study of the Milky Way at the Cape of Good Hope as well as in England, thought the southern portion was nearer to us than the northern, because of its gr ...
A-level Physics (Specification A) Teacher guide Teacher guide
... parabolic mirror, this can be illiminated in reflectors. There are some problems with reflectors. The secondary mirror and the ‘spider’ holding it in place both diffract the light as it passes, leading to a poorer quality image. Also, there is some refraction eventually, in the eyepiece used to view ...
... parabolic mirror, this can be illiminated in reflectors. There are some problems with reflectors. The secondary mirror and the ‘spider’ holding it in place both diffract the light as it passes, leading to a poorer quality image. Also, there is some refraction eventually, in the eyepiece used to view ...
VLT/FORS Surveys of Wolf-Rayet Stars beyond the
... suggestions that early-type WC stars are richer in carbon than late-type WC stars. However, quantitative analysis of WC subtypes allowing for radiative transfer effects do not support a subtype dependence of elemental abundances in WC stars. In contrast, Crowther et al. (2002) proposed that late spe ...
... suggestions that early-type WC stars are richer in carbon than late-type WC stars. However, quantitative analysis of WC subtypes allowing for radiative transfer effects do not support a subtype dependence of elemental abundances in WC stars. In contrast, Crowther et al. (2002) proposed that late spe ...
Distance Measures: Parallax
... this background? This is because the center of your eyes are a few centimeters apart from each other, so each eye as a different point of view. Because stars are SO far away, their parallaxes are most conveniently measured in seconds of arc (arc seconds). The angular size of your thumb held at arm’s ...
... this background? This is because the center of your eyes are a few centimeters apart from each other, so each eye as a different point of view. Because stars are SO far away, their parallaxes are most conveniently measured in seconds of arc (arc seconds). The angular size of your thumb held at arm’s ...
December - Rose City Astronomers
... and open cluster combo is a remarkable stroke of cosmic serendipity in an area nearly devoid of other major deep-sky objects. The refractor at 44x shows the 12' diameter star cluster as six stars (9th to 11thmagnitude) embedded in a background haze of a half dozen more fainter suns. The Triangulum o ...
... and open cluster combo is a remarkable stroke of cosmic serendipity in an area nearly devoid of other major deep-sky objects. The refractor at 44x shows the 12' diameter star cluster as six stars (9th to 11thmagnitude) embedded in a background haze of a half dozen more fainter suns. The Triangulum o ...
Distance Measures: Parallax
... this background? This is because the center of your eyes are a few centimeters apart from each other, so each eye as a different point of view. Because stars are SO far away, their parallaxes are most conveniently measured in seconds of arc (arc seconds). The angular size of your thumb held at arm’s ...
... this background? This is because the center of your eyes are a few centimeters apart from each other, so each eye as a different point of view. Because stars are SO far away, their parallaxes are most conveniently measured in seconds of arc (arc seconds). The angular size of your thumb held at arm’s ...
INTERSTELLAR MedLab
... Dark – high densities of dust and gas that redden or extinct the light from the stars located behind the cloud. These are also where molecules are likely to be found. During the course of this laboratory exercise, you will study the interstellar medium – where stars are formed and into which the ste ...
... Dark – high densities of dust and gas that redden or extinct the light from the stars located behind the cloud. These are also where molecules are likely to be found. During the course of this laboratory exercise, you will study the interstellar medium – where stars are formed and into which the ste ...
Measuring the Stars Section 29.2
... Luminosity is measured in units of energy emitted per second, or watts. The Sun’s luminosity is about 3.85 × 1026 W. The values for other stars vary widely, from about 0.0001 to more than 1 million times the Sun’s luminosity. No other stellar property varies as much. ...
... Luminosity is measured in units of energy emitted per second, or watts. The Sun’s luminosity is about 3.85 × 1026 W. The values for other stars vary widely, from about 0.0001 to more than 1 million times the Sun’s luminosity. No other stellar property varies as much. ...
Canis Minor
Canis Minor /ˌkeɪnɨs ˈmaɪnər/ is a small constellation in the northern celestial hemisphere. In the second century, it was included as an asterism, or pattern, of two stars in Ptolemy's 48 constellations, and it is counted among the 88 modern constellations. Its name is Latin for ""lesser dog"", in contrast to Canis Major, the ""greater dog""; both figures are commonly represented as following the constellation of Orion the hunter.Canis Minor contains only two stars brighter than the fourth magnitude, Procyon (Alpha Canis Minoris), with a magnitude of 0.34, and Gomeisa (Beta Canis Minoris), with a magnitude of 2.9. The constellation's dimmer stars were noted by Johann Bayer, who named eight stars including Alpha and Beta, and John Flamsteed, who numbered fourteen. Procyon is the seventh-brightest star in the night sky, as well as one of the closest. A yellow-white main sequence star, it has a white dwarf companion. Gomeisa is a blue-white main sequence star. Luyten's Star is a ninth-magnitude red dwarf and the Solar System's next closest stellar neighbour in the constellation after Procyon. The fourth-magnitude HD 66141, which has evolved into an orange giant towards the end of its life cycle, was discovered to have a planet in 2012. There are two faint deep sky objects within the constellation's borders. The 11 Canis-Minorids are a meteor shower that can be seen in early December.