• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
The portion of light we detect from a star/blackbody depends on
The portion of light we detect from a star/blackbody depends on

Shapes in the Sky
Shapes in the Sky

... Young students will first find shapes within a drawing and then in a random set of dots. This will be done on the dome and in class before you visit. We will set the Sun and peer at the stars in the current night sky, first finding familiar shapes, like squares and triangles, and then locating some ...
Galactic Address/Stars/Constellations
Galactic Address/Stars/Constellations

... • Stars can be as small as Earth or as large as the orbit of Jupiter. • https://www.youtube.com/watch?v=HEheh1BH34Q ...
handout
handout

... Walk to the Stars Imagine building a scale model of the nearby stars, with the nearest star, Alpha Centauri, placed 100 yards away. Sirius, the Dog Star, is about 200 yards away. The bright stars of the Big Dipper hover a Eris Pluto mile above our heads. (In the real world, they’re Neptune about 4, ...
Astronomy PowerPoint - Petal School District
Astronomy PowerPoint - Petal School District

The Night Sky 12-07
The Night Sky 12-07

... evening twilight. During the first few days of April, before it disappears from view, Mercury can be glimpsed along the horizon well below Mars. Jupiter reaches opposition this month, which means that it will be up all night long and high in the south at local midnight. For us in the U.P. on Eastern ...
CST Prep- 8th Grade Astronomy
CST Prep- 8th Grade Astronomy

Slide 1
Slide 1

... Formation of the Solar System Nebular Theory = sun and planets formed from a rotating disk of dust and gases. Planetesimals = small, irregular-shaped bodies that collided and clumped together to form the planets. ...
Stars Take Center Stage in
Stars Take Center Stage in

Sammy Nagel · Annie Jump Cannon
Sammy Nagel · Annie Jump Cannon

... She discovered a system for describing how hot stars are. She used a mnemonic device to remember the letters. the letters were O B A F G K M. The mnemonic was "Oh, be a fine girlkiss me" The O is the hottest star. The M is the coolest star. G is the same as the sun. The hottest two stars are O and B ...
asteroids
asteroids

... » method of measuring distances is by means of light year, the distance traveled by light in one year at the speed of 186,000 miles per second equaling to 5.86 x 10 » movement is independent of each other. Due to its distance, they do not seem to move at all. After a long period of time, a shift in ...
The Young Astronomers Newsletter Volume 22 Number 3 February
The Young Astronomers Newsletter Volume 22 Number 3 February

Document
Document

... • For any star in the sky, we KNOW: – Apparent Magnitude (m) – Spectral Type (O, B, A, F, G, K, M) – Luminosity Class (Main Sequence, Giant, etc…). These are denoted by a roman numeral (V, III, I,…). ...
Distances in Space
Distances in Space

... You want to record the distance to the Andromeda Galaxy. What unit of measure should you use? 2. Pluto is 39 times farther from the Sun than the Earth. How many astronomical units is Pluto from the Sun? 3. Earth is 149.6 million km from the Sun. If Saturn is 1,434 million km from the Sun. How many a ...
Star Name __Direction ___ Degrees
Star Name __Direction ___ Degrees

... 1. ___________ What time at night is it best to use the Oct. Sky Chart? 2. ___________ What is the distance from the South horizon to the Zenith in mm? 3. ___________ What is the measurement in mm to the other three horizons? ___________ ___________ 4. ___________ How far above the NE horizon is Mar ...
Stars and Galaxies Misconceptions
Stars and Galaxies Misconceptions

... Students may think all stars look the same. Stars have different colors, difficult for many human eyes to detect. ...
The life of Stars
The life of Stars

... • The orbital plane of the pair almost edge-on to our line of sight • We observe periodic changes in the starlight as one member of the binary passes in front of the other ...
ASTR 1020 – Spring 2017 – Prof. Magnani Answer Key – Homework 5
ASTR 1020 – Spring 2017 – Prof. Magnani Answer Key – Homework 5

... The average number density (i.e., the number of particles per volume) of the interstellar medium is 0.1 atoms/cm3. The vast majority (about ¾) is made up of hydrogen with a mass of 1.67 x 10-27 kg, so the average gas mass density is 1.67 x 1028 kg/cm3 (we’re ignoring helium). There is about 100 time ...
Dynamite Diameters
Dynamite Diameters

... determined T and L to determine M and age  Results agree well will eclipsing ...
Gliese 229B
Gliese 229B

... Multiply the number of seconds in one year by the number of kilometers (or miles) that light travels in one second, and the result is a light -year. ...
the fixed stars - The Witches` Almanac
the fixed stars - The Witches` Almanac

... at 14 degrees Aries 26 minutes. It is benevolent, with the overall nature of Venus. A part of two constellations, both Andromeda and Pegasus, Alpheratz has the added distinction of being among the fifty stars catalogued by the Elizabethan astrologer William Lilly in his book Christian Astrology. Alp ...
The Realm of Physics
The Realm of Physics

... many times does your heart beat in your lifetime. • Ie. We live approximately 102 years, each year contains approximately 107 seconds, and our heart beats about 1 time per second. So, your heart beats about 109 times in your lifetime. ...
The star
The star

... before, yet were expanding still. They were immensely hot, radiating even now with a fierce violet light, but were far too tenuous to do us any damage. When the star had exploded, its outer layers had been driven upward with such speed that they had escaped completely from its gravitational field. N ...
Quiz Maker - Geneva 304
Quiz Maker - Geneva 304

... 1. From looking at Figure 24-11 in your book, draw the Lyman series and the Balmer series on the same wavelength axis, that is, on a horizontal straight line labeled in angstroms every 500 Å from 500 to 7,000 Å. ...
Summation Packet KEY
Summation Packet KEY

< 1 ... 112 113 114 115 116 117 118 119 120 ... 144 >

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.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report