The Argonauts, background to the constellation Carina Argo Navis
... The Argonauts, background to the constellation Carina Argo Navis (or simply Argo) was a very large constellation in the southern sky that has since been divided into three constellations. It represented the Argo, the ship used by Jason and the Argonauts in Greek mythology. Argo Navis is the only one ...
... The Argonauts, background to the constellation Carina Argo Navis (or simply Argo) was a very large constellation in the southern sky that has since been divided into three constellations. It represented the Argo, the ship used by Jason and the Argonauts in Greek mythology. Argo Navis is the only one ...
Project 4: The HR diagram. Open clusters
... involves getting images of the cluster through two filters, B and V in our case, reducing the data and plotting V versus (B-V). In some circumstances, such as when plotting stars in a specific open or globular cluster, apparent magnitude, m, or V, rather than absolute magnitude may be used in the Y ...
... involves getting images of the cluster through two filters, B and V in our case, reducing the data and plotting V versus (B-V). In some circumstances, such as when plotting stars in a specific open or globular cluster, apparent magnitude, m, or V, rather than absolute magnitude may be used in the Y ...
SMMP_BISANA - Infinity and Beyond
... Despite the many mentions of the stars in Greek and early Roman texts, by far the most thorough star catalogue from ancient times belongs to the Roman Ptolemy of Alexandria, who grouped 1022 stars into 48 constellations during the 2nd century A.D. Although Ptolemy's Almagest does not include the co ...
... Despite the many mentions of the stars in Greek and early Roman texts, by far the most thorough star catalogue from ancient times belongs to the Roman Ptolemy of Alexandria, who grouped 1022 stars into 48 constellations during the 2nd century A.D. Although Ptolemy's Almagest does not include the co ...
Document
... Cepheid Variables • Certain stars that have used up their main supply of hydrogen fuel are unstable and pulsate. • RR Lyrae variables have periods of about a day. Their brightness doubles from dimest to brightest. • Typical light curve for a Cepheid variable star. • Cepheid variables have longer pe ...
... Cepheid Variables • Certain stars that have used up their main supply of hydrogen fuel are unstable and pulsate. • RR Lyrae variables have periods of about a day. Their brightness doubles from dimest to brightest. • Typical light curve for a Cepheid variable star. • Cepheid variables have longer pe ...
Milky Way - Wayne Hu`s Tutorials
... • Angular positions of stars (as a function of season, time) • Relative radial velocity from Doppler effect ...
... • Angular positions of stars (as a function of season, time) • Relative radial velocity from Doppler effect ...
10 - Keele Astrophysics Group
... Early in the 19th century, the German physicist Joseph von Fraunhofer observed the solar spectrum and realised that there was a clear pattern of absorption lines superimposed on the continuum. By the end of that century, astronomers were able to examine the spectra of stars in large numbers and real ...
... Early in the 19th century, the German physicist Joseph von Fraunhofer observed the solar spectrum and realised that there was a clear pattern of absorption lines superimposed on the continuum. By the end of that century, astronomers were able to examine the spectra of stars in large numbers and real ...
File - YEAR 11 EBSS PHYSICS DETAILED STUDIES
... We know the stars by their light Interpreting the H-R diagram – stellar evolution Some stars, however, are destined to go out with a bang. In stars around 4 times the mass of the sun, after the hydrogen-burning phase, begin to contract, causing heat ~600 million degrees, causing new fusion reactio ...
... We know the stars by their light Interpreting the H-R diagram – stellar evolution Some stars, however, are destined to go out with a bang. In stars around 4 times the mass of the sun, after the hydrogen-burning phase, begin to contract, causing heat ~600 million degrees, causing new fusion reactio ...
The Stars of Namaqualand
... Jupiter is very bright and therefore very obvious. It is visible all night long most month in the year because it orbit is outside our own. It has a small ring system which is not viewable with a normal telescope. Jupiter is named after the most powerful of the Roman gods, because it is the biggest ...
... Jupiter is very bright and therefore very obvious. It is visible all night long most month in the year because it orbit is outside our own. It has a small ring system which is not viewable with a normal telescope. Jupiter is named after the most powerful of the Roman gods, because it is the biggest ...
Reach for the Stars – Div. B
... the nuclear fusion of hydrogen. This energy is being emitted from the outer envelope at an effective temperature of 34,000K, giving the star the blue hue of an O-type star. ...
... the nuclear fusion of hydrogen. This energy is being emitted from the outer envelope at an effective temperature of 34,000K, giving the star the blue hue of an O-type star. ...
Chapter 15 Surveying the Stars
... • The light curve of this pulsating variable star shows that its brightness alternately rises and falls over a 50-day period ...
... • The light curve of this pulsating variable star shows that its brightness alternately rises and falls over a 50-day period ...
Sky Diary - Society for Popular Astronomy
... on 15 October. This means that both planets are visible during nearly all of the available darkness on any night in the period, with Neptune up first and Uranus following on. Neptune will be a telescopic object, little more than 2 seconds of arc in apparent size, shining at a faint +7.8 magnitude ag ...
... on 15 October. This means that both planets are visible during nearly all of the available darkness on any night in the period, with Neptune up first and Uranus following on. Neptune will be a telescopic object, little more than 2 seconds of arc in apparent size, shining at a faint +7.8 magnitude ag ...
observingnebulaeclusters-1
... argon, and chlorine; the density of these gases is above the critical limit required for stars to form within the nebula. Visible to the naked eye as the middle "star" in the "sword" of the constellation Orion, the nebula is located 1500 light years from Earth. A closer image taken with the Wide Fie ...
... argon, and chlorine; the density of these gases is above the critical limit required for stars to form within the nebula. Visible to the naked eye as the middle "star" in the "sword" of the constellation Orion, the nebula is located 1500 light years from Earth. A closer image taken with the Wide Fie ...
jackie822 beanerbutt777 life cycle of a star
... The nebula is a cloud of gas and dust. It is not yet a star. ...
... The nebula is a cloud of gas and dust. It is not yet a star. ...
The H-R Diagram
... • Parallax, the only direct method of finding distances to stars, except for rare eclipsing binaries • Spectral types are a Temperature sequence: OBAFGKM hot to cool. • 90% of all stars are on Main Sequence= hydrogen burning stars • Main Sequence is a mass sequence, lower right to upper left is risi ...
... • Parallax, the only direct method of finding distances to stars, except for rare eclipsing binaries • Spectral types are a Temperature sequence: OBAFGKM hot to cool. • 90% of all stars are on Main Sequence= hydrogen burning stars • Main Sequence is a mass sequence, lower right to upper left is risi ...
Brock physics - Brock University
... Number of students: 30 Time limit: 50 min Instructor: S. D’Agostino ...
... Number of students: 30 Time limit: 50 min Instructor: S. D’Agostino ...
Astronomy - Scioly.org
... where the masses of the Sun and planet are in units of solar masses, the period is in units of years, and the semimajor axis in astronomical units. Why is Kepler's form of his third law nearly identical to Newton's form? a. Both forms are very similar in that they have periods and semimajor axes in ...
... where the masses of the Sun and planet are in units of solar masses, the period is in units of years, and the semimajor axis in astronomical units. Why is Kepler's form of his third law nearly identical to Newton's form? a. Both forms are very similar in that they have periods and semimajor axes in ...
P10263v1.2 Lab 6 Text
... When finding the distance to the Pleiades cluster, we used the spectral type information for individual stars in the cluster. That information translated into an estimate of the absolute luminosity. Combined with the measured apparent luminosity and an estimate of “X”, we were able to find the dista ...
... When finding the distance to the Pleiades cluster, we used the spectral type information for individual stars in the cluster. That information translated into an estimate of the absolute luminosity. Combined with the measured apparent luminosity and an estimate of “X”, we were able to find the dista ...
Stellar Evolution Review
... Mira b) Stars at letters A & B & Barnard’s Star c) Sirius A & Sirius B d) Rigel & Deneb e) Pollux & Barnard’s Star ...
... Mira b) Stars at letters A & B & Barnard’s Star c) Sirius A & Sirius B d) Rigel & Deneb e) Pollux & Barnard’s Star ...
The Milky Way - Houston Community College System
... measurements of distant celestial objects is especially difficult. To discover the properties of stars, astronomers have used their telescopes and spectrographs in clever ways to learn the secrets hidden in starlight. The result is a family portrait of the stars. In this chapter you will find answer ...
... measurements of distant celestial objects is especially difficult. To discover the properties of stars, astronomers have used their telescopes and spectrographs in clever ways to learn the secrets hidden in starlight. The result is a family portrait of the stars. In this chapter you will find answer ...
Today in Astronomy 142: observations of stars
... ! RA (right ascension) tells you when your object is up. • 12 hours is up highest Mar 21 • 0 hours is up highest Sept 21 ! DEC (declination) tells you how far away from the north pole. Polaris is at +90. Anything below 0 degrees is hard to observe from the northern hemisphere. ! Spectral types and ...
... ! RA (right ascension) tells you when your object is up. • 12 hours is up highest Mar 21 • 0 hours is up highest Sept 21 ! DEC (declination) tells you how far away from the north pole. Polaris is at +90. Anything below 0 degrees is hard to observe from the northern hemisphere. ! Spectral types and ...
What We Know About Stars So Far
... Earth. The closer a star is to the Earth, the brighter it would appear. They used a scale of 1 – 6 1 = brightest stars 6 = least bright stars ...
... Earth. The closer a star is to the Earth, the brighter it would appear. They used a scale of 1 – 6 1 = brightest stars 6 = least bright stars ...
Constellations Overview
... superficial since their positions are only relative to the position from which they are viewed from Earth. ...
... superficial since their positions are only relative to the position from which they are viewed from Earth. ...
Fulltext PDF - Indian Academy of Sciences
... their variety - while some are bright, some are faint; some are blue and red. The attempt to understand this vast variety eventually led to the physics of the structure of the stars. The brightness of a star is measured in magnitudes. Hipparchus, a Greek astronomer who lived a hundred and fifty year ...
... their variety - while some are bright, some are faint; some are blue and red. The attempt to understand this vast variety eventually led to the physics of the structure of the stars. The brightness of a star is measured in magnitudes. Hipparchus, a Greek astronomer who lived a hundred and fifty year ...
Type Ia supernovae and the ESSENCE supernova survey
... by Hipparchus in the 2nd century BC. The brightest stars in the sky are said to be “of the first magnitude”. The faintest stars visible to the unaided eye are 6th magnitude. For two stars of intensity I1 and I2 their apparent magnitudes are related as follows: m2 – m1 = log (I2/I1) Thus, if we ...
... by Hipparchus in the 2nd century BC. The brightest stars in the sky are said to be “of the first magnitude”. The faintest stars visible to the unaided eye are 6th magnitude. For two stars of intensity I1 and I2 their apparent magnitudes are related as follows: m2 – m1 = log (I2/I1) Thus, if we ...
visual photometry - El Camino College
... professional astronomers.) The standard stars that are closest in brightness to the unknown star will determine an upper and lower limits for the unknown’s visual magnitude. In other words, if the unknown is fainter than standard 1, but is brighter than standard 2, the visual magnitude should lie be ...
... professional astronomers.) The standard stars that are closest in brightness to the unknown star will determine an upper and lower limits for the unknown’s visual magnitude. In other words, if the unknown is fainter than standard 1, but is brighter than standard 2, the visual magnitude should lie be ...
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.