Astronomy and Astrophysics Forum

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Join in expert discussion on the topics of Astronomy and astrophysics. This may include discussion on celestial objects, space, and the physical universe as a whole. Mainstream science only.
Undergrad Blackbody colour of metals versus stars
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Undergrad What are the Characteristics of a Perfect Meteorite?
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Undergrad Matter leaving a spinning galaxy
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Undergrad Astronomy in a Simple Solar System
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Undergrad Could Planck Stars Explain Black Hole Bounce and Resolve Physics Paradoxes?
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Undergrad Some questions about absorption lines
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Undergrad At what wavelength do we observe ionized gas?
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Undergrad Can a Tube Launch System Harness Atmospheric Energy to Reach Space?
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Undergrad Do we first determine the gravity or density of a celestial object?
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Undergrad Acquiring a Small Dataset of a pulsar signal
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Undergrad Determining Relative Position of Space Object to Earth
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Undergrad Fast Radio Bursts (FBR) detected in our own Galaxy
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Undergrad Fourier Series and Cepheid Variables
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Undergrad Shape of Dark Matter Halos & Visible Matter Angular Momentum
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Undergrad What Mechanism Creates the Jet Emanating From a Quasar?
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Undergrad Earth's Rotation & Orbit: Effects on Space Objects?
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Undergrad Can Alfvén waves be observed on a stellar spectrum using amateur equipment?
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Undergrad Book to study the big bang theory
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Undergrad Number of known asteroids reaches 1 million
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Undergrad Huge Hole Found in the Universe
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Undergrad How fast do galaxies 1 billion light-years away move away from us?
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Undergrad Q: Volume of the largest ellipsoid in space which contains no stars?
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Undergrad What happens to a small star after burning all of its fuel?
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Undergrad IRAS Filter Profile: Computing ##\lambda_{mean}##
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Undergrad Preprocessing FIT Files to Bias and Flat Correction Using Python Script
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Undergrad Black Hole Event Horizon Hypothesis
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Undergrad Which will be brighter when it supernovas - Eta Carinae or Betelgeuse?
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Undergrad Do Black Holes Exist? | Physics & Stephen Hawking
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Undergrad Can LIGO Detect Gravity Waves from Directly Above or Below?
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Undergrad Red shift / Blue Shift - Gravity Well Roundtrip
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Undergrad Apparent distance to far galaxies
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Undergrad Object in or out of a circular field of view? (celestial coordinate system)
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Undergrad Is a Robust Estimate of Tau Ceti 'f' Albedo Possible?
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Undergrad Rotation rates of planets seem odd?
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Undergrad Converting "Luminosity per unit wavelength" to "Luminosity per unit frequency"
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Undergrad Question Regarding Determining the Mass of Venus
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Undergrad What powers the quasar magnetic beams that power jets?
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Undergrad Material source of the quasar redshift
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Undergrad What are the names of these 2 craters on Mars....
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Undergrad What kind of matter formed Primordial Blackholes?
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Undergrad What is the correct way to calculate the area of the sky in square degrees?
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Undergrad What happens if a strangelet falls in to a black hole?
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Undergrad Remains of collapsed stars as touching binary planets?
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Undergrad Does a particular star's brightness change throughout the year?
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Undergrad Speculative Term in Drake's Equation
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Undergrad Effects of hydrogen anions in the solar atmosphere
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Undergrad Glass bottle with a prolonged neck that continues into the inner space
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Undergrad Does gravity affect aging on different planets?
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Undergrad Magnitude limits for active galactic nuclei
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Undergrad Does the expansion of the Universe affect orbiting bodies?
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Undergrad Understanding the Discrepancy: Why Does the Moon Have Less Gravity Than Earth?
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Undergrad Are stable orbits possible between Mars and Jupiter?
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Undergrad Can you See Neighboring Asteroids from an asteroid?
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Undergrad Are Intensity and Magnitude independent of the radius of a star?
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Undergrad Reionization and the free-flow of light
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Undergrad What causes Kuiper/Ort cloud objects to become comets?
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Undergrad How does the perihelion passage affect the orbital period of comet Neowise?
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Undergrad Is Triton ever hidden behind Neptune?
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Undergrad How bright of a bolide would a Saturn IV-B stage be if it hit Earth
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Undergrad CCD Readout Noise vs Temperature
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Undergrad Observing colour through telescopes
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Undergrad Black Hole Observations: What Changed?
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Undergrad Do more impact craters always signify old age of a surface?
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Undergrad Formula: velocity of circular orbit wrt Schwartzschild metric
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Undergrad Possible webpage title: Is There an Upper Limit to the Size of a Black Hole?
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Undergrad X-ray Astronomy: Charged Ions Energy Distribution
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Undergrad Answers to a question about extraterrestrial life
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Undergrad Foreground & Background in Astrophysical Observation
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Undergrad Persistent features of astronomical bodies
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Undergrad A cold, massive, rotating disk galaxy 1.5 billion years after the BB
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Undergrad Power output of red dwarfs turning yellow and blue?
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Undergrad What is column density in astronomy?
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Undergrad Question regarding the future of galaxies within a group of clusters
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Undergrad Trying to grok the draconic year
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Undergrad Could life on Earth survive the far future?
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Undergrad What stars were observed @ 1919 solar eclipse to prove relativity?
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Undergrad Black hole image: What are those "lobes"? [M87 10April2019]
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Undergrad The effect of Faraday braking on the Earth’s orbit
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Undergrad IAU Rotational Models: Sol Solar System Planet Info
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Undergrad Why the center of black holes should be different from neutron stars?
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Undergrad White dwarf Ultra-relativistic electrons
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Undergrad Is it possible for the Moon & a pair of planets to conjunct as smiley face?
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Undergrad Suggestion for resources about cosmic rays
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Undergrad The Bullet Cluster: 1E0657-56 vs. 1E0657-558
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Undergrad Elliptical Orbit and Kepler's equation
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Undergrad How does Jupiter protect the Earth from collision with space rocks?
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Undergrad Simple atmospheric question re: Mars
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Undergrad Objects flying over the lunar surface
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Undergrad To collect all info at the event horizon
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Undergrad The life cycle of a star and the bell shaped energy emission curve
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Undergrad Velocity correction´ formula for the rotation of the Earth
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Undergrad Solar wind velocity and corrections
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Undergrad A Puzzle Regarding the Time Between Consecutive March Equinoxes
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Undergrad Uncovering the Truth: Jupiter's Core Revealed as Solid Diamond by Tammy Ma
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Undergrad Universal interferometric signatures of a black hole’s photon ring
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Undergrad Where exactly is the Hertzsprung Gap?
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Undergrad Variations in Sun-Earth distance with a 2000-year cycle?
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Undergrad Uncovering the Mystery of Lunar Perigee Frequency | 2020 Insights
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Undergrad If humamoids lived around a flare red dwarf, would the flare kill them?
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Undergrad A new space rock to my collection
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