What is biggest star in the universe?

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What is biggest star in the universe?

Absolute magnitude (M) is a measure of the luminosity of a celestial object, on an inverse logarithmic astronomical magnitude scale. … For example, a star of absolute magnitude MV=3.

Astronomers define star brightness in terms of apparent magnitude — how bright the star appears from Earth — and absolute magnitude — how bright the star appears at a standard distance of 32.

Q. What is the absolute magnitude of the sun?

-26.

Q. What is MV in astronomy?

MV = Mbol − BC = absolute visual magnitude of a star; BC is a bolometric correction, and V indicates that we are referring to that part of the stellar radiation that is emitted in the “visual” part of the spectrum, i.e. at about 5×10−5 cm, 5000 Å .

Q. How is absolute magnitude measured?

Answer: The largest known star (in terms of mass and brightness) is called the Pistol Star. It is believed to be 100 times as massive as our Sun, and times as bright! In 1990, a star named the Pistol Star was known to lie at the center of the Pistol Nebula in the Milky Way Galaxy.

Q. What are the 5 brightest stars?

The top 10 brightest stars in the night sky.

  1. Sirius A (Alpha Canis Majoris) …
  2. Canopus (Alpha Carinae) …
  3. Rigil Kentaurus (Alpha Centauri) …
  4. Arcturus (Alpha Bootis) …
  5. Vega (Alpha Lyrae) …
  6. Capella (Alpha Aurigae) …
  7. Rigel (Beta Orionis)

Q. Which star has the highest absolute magnitude?

Sirius

Q. What is the brightest absolute magnitude?

It’s a star system about 7,500 light-years from Earth. It looks like the brightest (absolute magnitude) single star visible to the unaided eye is WR 24 (in Carina Nebula). Its absolute magnitude is −11.

Q. Which is the brightest planet in the night sky?

List

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RankMaximum and/or combined apparent magnitude (V)Object designation/name
Formal name
1−26.

Q. Which planet is visible from Earth today?

Planets Visible in New York

Planetrise/Planetset, Tue,
PlanetRiseComment
VenusTue 7:00 amVery close to Sun, not visible
MarsMon 9:59 amAverage visibility
JupiterTue 5:17 amFairly good visibility

Q. What is the oldest planet in the universe?

At 12.

Q. What is the scariest planet?

ClubPenguin38/The Most Scary Extrasolar Planets Discovered

  • HD 80606 b is an Eccentric Jupiter planet, meaning it is a gas giant. …
  • Kepler-78b.
  • Kepler-78b is one of the most earthlike planets discovered. …
  • Jupiter.
  • 55 Cancri e.
  • COROT-2 b.
  • COROT-2 b. …
  • PSO J318.

Q. What is the most dangerous planet in the universe?

Venus

Q. Which is the coldest planet in the universe?

Neptune

Q. How do I find Venus in the night sky?

Venus is really easy to find after the sun has set. Just look generally west, where Venus will be visible about 40º above the horizon (around halfway between the horizon and the zenith above your head).

Q. Which planet is not a terrestrial planet?

Non-terrestrial planets In our solar system, Jupiter, Saturn, Uranus and Neptune are gas giants, also known as Jovian planets.