LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
... 5. What is the effect of refraction on the length of the day? 6. State Kepler’s laws of planetary motion. 7. Write down the formula to convert sidereal time to solar time. 8. Define age of the moon. 9. What are meteors? 10. Define elongation of a planet. SECTION – B Answer any FIVE questions ...
... 5. What is the effect of refraction on the length of the day? 6. State Kepler’s laws of planetary motion. 7. Write down the formula to convert sidereal time to solar time. 8. Define age of the moon. 9. What are meteors? 10. Define elongation of a planet. SECTION – B Answer any FIVE questions ...
Stellar Masses
... • Hubble combined his results with Slipher’s and found a clear correlation between a galaxy’s recessional velocity v and the distance from the Earth d. Note: Most of Hubble’s measurements were actually made by his ...
... • Hubble combined his results with Slipher’s and found a clear correlation between a galaxy’s recessional velocity v and the distance from the Earth d. Note: Most of Hubble’s measurements were actually made by his ...
Citizen Sky Epsilon Aurigae Script for Fulldome Planetariums
... disk form? How long will it stick around? And how does it remain intact? Our own solar system may have formed from a disk similar to this. What can Epsilon Aurigae teach us about our own origins? To answer our questions, we need more observations. From a distance, we cannot see the details of the Ep ...
... disk form? How long will it stick around? And how does it remain intact? Our own solar system may have formed from a disk similar to this. What can Epsilon Aurigae teach us about our own origins? To answer our questions, we need more observations. From a distance, we cannot see the details of the Ep ...
Exam #: Printed Name: Signature: PHYSICS DEPARTMENT
... a) How much heat QH would Engine X extract from the high-temperature reservoir per cycle? b) How much heat QL would Engine X transfer to the low temperature reservoir per cycle? c) What would be the entropy change per cycle for the entire system? d) Will you take the case? In other words, can this e ...
... a) How much heat QH would Engine X extract from the high-temperature reservoir per cycle? b) How much heat QL would Engine X transfer to the low temperature reservoir per cycle? c) What would be the entropy change per cycle for the entire system? d) Will you take the case? In other words, can this e ...
The Milky Way Galaxy
... What is the remnant left over from a Type Ia (carbon detonation) supernova: A: a white dwarf + an expanding shell B: a neutron star + an expanding shell C: a black hole + an expanding shell D: no remnant, just the expanding shell ...
... What is the remnant left over from a Type Ia (carbon detonation) supernova: A: a white dwarf + an expanding shell B: a neutron star + an expanding shell C: a black hole + an expanding shell D: no remnant, just the expanding shell ...
ASTRONOMY 120
... 13. The Sun's angular diameter is 32 arc minutes, and it lies 1 A.U. away from the Earth. If we convert arc minutes to degrees, and A.U.'s to kilometers, we can figure out the Sun's diameter in terms of kilometers. If there are 1.496 x 108 km per A.U., what is the Sun's real diameter in kilometers? ...
... 13. The Sun's angular diameter is 32 arc minutes, and it lies 1 A.U. away from the Earth. If we convert arc minutes to degrees, and A.U.'s to kilometers, we can figure out the Sun's diameter in terms of kilometers. If there are 1.496 x 108 km per A.U., what is the Sun's real diameter in kilometers? ...
PHY216_lect1_2014 - Astrophysics Research Institute
... set in the west. The hour angle tells you how long it will be before the star transits (or how much time has passed since it transited!) • Hour Angle - angle between a star's current position and the meridian (measured WESTWARD in hours, where 1 hour is equivalent to 15 degrees – because 24 hours = ...
... set in the west. The hour angle tells you how long it will be before the star transits (or how much time has passed since it transited!) • Hour Angle - angle between a star's current position and the meridian (measured WESTWARD in hours, where 1 hour is equivalent to 15 degrees – because 24 hours = ...
Mon Oct 22, 2012 MOON IN CAPRICORNUS The moon is waxing
... The moon is in its waxing gibbous phase, and has entered a part of the sky known as “the sea.” A large part of the sky has been designated as such because of all the watery constellations found there. In the zodiac there is Capricornus the Sea Goat, followed to the east by Aquarius, the water carrie ...
... The moon is in its waxing gibbous phase, and has entered a part of the sky known as “the sea.” A large part of the sky has been designated as such because of all the watery constellations found there. In the zodiac there is Capricornus the Sea Goat, followed to the east by Aquarius, the water carrie ...
te acher`s guide te acher`s guide
... counterparts. Space travelers Adi and Woops help viewers clearly answer each question using computer graphics and space footage. What are the signs of the zodiac? The signs of the zodiac are twelve different groups of stars that are named after animals or mythical creatures.They are constellations — ...
... counterparts. Space travelers Adi and Woops help viewers clearly answer each question using computer graphics and space footage. What are the signs of the zodiac? The signs of the zodiac are twelve different groups of stars that are named after animals or mythical creatures.They are constellations — ...
Futuro da Ci^encia no IAG
... -High mass stars explode as supernovae and produce a GRBs (z ~ 15 ?) GRB at z~8.2 = pop. III? -First generations of low mass stars should be still evolving, identified by a very low metallicity (or no metals) (z ~ 5 to 15) ...
... -High mass stars explode as supernovae and produce a GRBs (z ~ 15 ?) GRB at z~8.2 = pop. III? -First generations of low mass stars should be still evolving, identified by a very low metallicity (or no metals) (z ~ 5 to 15) ...
What The Star of Bethlehem Was Not
... Venus is a glorious sight when it is high in the sky after dark and, because of this, it is an unlikely Star of Bethlehem. We are as certain as we can be of anything that the Magi were assiduous watchers of the sky and would certainly have known Venus and recognised it for what it is. Similarly, apa ...
... Venus is a glorious sight when it is high in the sky after dark and, because of this, it is an unlikely Star of Bethlehem. We are as certain as we can be of anything that the Magi were assiduous watchers of the sky and would certainly have known Venus and recognised it for what it is. Similarly, apa ...
Stars and Constellations
... the story, facilitate a discussion with students about the concept of a star, constellations and how stars evolve. Lead students to understand the difference between apparent magnitude and absolute magnitude. Showing a flashlight at varying distances is a concrete means of demonstrating the differen ...
... the story, facilitate a discussion with students about the concept of a star, constellations and how stars evolve. Lead students to understand the difference between apparent magnitude and absolute magnitude. Showing a flashlight at varying distances is a concrete means of demonstrating the differen ...
YSO/PMS disk types, time-scales and evolution from 1
... Note the ranges probed by the photometry (MIPS1) ...
... Note the ranges probed by the photometry (MIPS1) ...
Higher Hubble`s Law and the Big Bang Answers
... The greater the temperature the lower the peak wavelength of the light emitted. The greater the temperature the greater the area under the graph and so the greater the power emitted. ...
... The greater the temperature the lower the peak wavelength of the light emitted. The greater the temperature the greater the area under the graph and so the greater the power emitted. ...
Project Packet - Montville.net
... What’s Your Sign? Constellations, Stars and the Hertzsprung-Russell Diagram ...
... What’s Your Sign? Constellations, Stars and the Hertzsprung-Russell Diagram ...
29-1
... _____ 1. Why do astronomers use special filters to look at the sun? a. The sun seems only one color otherwise. b. No telescope can view the sun otherwise. c. The sun’s brightness can damage one’s eyes. d. They view the sun only at night. _____ 2. What do scientists use to break up the sun’s light in ...
... _____ 1. Why do astronomers use special filters to look at the sun? a. The sun seems only one color otherwise. b. No telescope can view the sun otherwise. c. The sun’s brightness can damage one’s eyes. d. They view the sun only at night. _____ 2. What do scientists use to break up the sun’s light in ...
Major Stars of the Orion Constellation
... (Rigel) due to a misclassification error as Betelgeuse was found to be a variable star. [Wiscweb] “Astronomers now know that these regular brightness variations are caused by changes in the actual size of the star's atmosphere. According to Robert Burnham, Jr. (1931-93), Betelgeuse is the only marke ...
... (Rigel) due to a misclassification error as Betelgeuse was found to be a variable star. [Wiscweb] “Astronomers now know that these regular brightness variations are caused by changes in the actual size of the star's atmosphere. According to Robert Burnham, Jr. (1931-93), Betelgeuse is the only marke ...
April 2013
... elements can have various isotopes. Neutrons and protons have almost identical masses and are generally called nucleons. The number of nucleons in a nucleus is the mass number of that isotope. Electrically neutral atoms have negatively charged extra-nuclear electrons equal in number to the atomic nu ...
... elements can have various isotopes. Neutrons and protons have almost identical masses and are generally called nucleons. The number of nucleons in a nucleus is the mass number of that isotope. Electrically neutral atoms have negatively charged extra-nuclear electrons equal in number to the atomic nu ...
Relativistic jets in microquasars, AGN and GRBs
... Mirabel, Irapuan Rodrigues et al. (A&A 395, 595, 2002) Proper motion with HST + radial velocity from ground RUNAWAY VELOCITY ~120 km/s MOMENTUM = 550 M km/s as in runaway neutron stars ...
... Mirabel, Irapuan Rodrigues et al. (A&A 395, 595, 2002) Proper motion with HST + radial velocity from ground RUNAWAY VELOCITY ~120 km/s MOMENTUM = 550 M km/s as in runaway neutron stars ...
Composition of the Sun
... identify the elements in the star’s atmosphere. Both hydrogen and helium occur in the sun. About 75% of the sun’s mass is hydrogen, and hydrogen and helium together make up about 99% of the sun’s mass. The sun’s spectrum reveals that the sun contains traces of almost all other chemical elements. ...
... identify the elements in the star’s atmosphere. Both hydrogen and helium occur in the sun. About 75% of the sun’s mass is hydrogen, and hydrogen and helium together make up about 99% of the sun’s mass. The sun’s spectrum reveals that the sun contains traces of almost all other chemical elements. ...
HR Diagram Activity - Mr. Alster`s Science Classes
... Purpose: In this lab we will investigate the relationship between the temperature, brightness and diameter of stars. Introduction The H-R Diagram is a tool that astronomers use to classify stars based on their luminosity, magnitude, temperature, spectral class and evolutionary stage. The H-R Diagram ...
... Purpose: In this lab we will investigate the relationship between the temperature, brightness and diameter of stars. Introduction The H-R Diagram is a tool that astronomers use to classify stars based on their luminosity, magnitude, temperature, spectral class and evolutionary stage. The H-R Diagram ...
IK Pegasi
IK Pegasi (or HR 8210) is a binary star system in the constellation Pegasus. It is just luminous enough to be seen with the unaided eye, at a distance of about 150 light years from the Solar System.The primary (IK Pegasi A) is an A-type main-sequence star that displays minor pulsations in luminosity. It is categorized as a Delta Scuti variable star and it has a periodic cycle of luminosity variation that repeats itself about 22.9 times per day. Its companion (IK Pegasi B) is a massive white dwarf—a star that has evolved past the main sequence and is no longer generating energy through nuclear fusion. They orbit each other every 21.7 days with an average separation of about 31 million kilometres, or 19 million miles, or 0.21 astronomical units (AU). This is smaller than the orbit of Mercury around the Sun.IK Pegasi B is the nearest known supernova progenitor candidate. When the primary begins to evolve into a red giant, it is expected to grow to a radius where the white dwarf can accrete matter from the expanded gaseous envelope. When the white dwarf approaches the Chandrasekhar limit of 1.44 solar masses (M☉), it may explode as a Type Ia supernova.