Did you know?
โจMercury is a terrestrial planet. Mercuryโs magnetic field is just 1% of that of the Earthโจ
#Fact
๐ @AstroMechanics
โจMercury is a terrestrial planet. Mercuryโs magnetic field is just 1% of that of the Earthโจ
#Fact
๐ @AstroMechanics
The Last Full moon of the Year๐
โจThe last full moon of the year rises on Dec. 18, according to AccuWeather. Bundle up to enjoy the last full moon of the year. The last full moon of 2021 will reach peak illumination on Saturday, December 18, at 11:32 p.m. ET, according to NASA, but you can trace its path across the sky starting at just before sunsetโจ.
#AstronomicalEvents
๐ @AstroMechanics
โจThe last full moon of the year rises on Dec. 18, according to AccuWeather. Bundle up to enjoy the last full moon of the year. The last full moon of 2021 will reach peak illumination on Saturday, December 18, at 11:32 p.m. ET, according to NASA, but you can trace its path across the sky starting at just before sunsetโจ.
#AstronomicalEvents
๐ @AstroMechanics
The Moon has no atmosphere๐
โจThis means that the surface of the Moon is unprotected from cosmic rays, meteorites and solar winds, and has huge temperature variations. The lack of atmosphere means no sound can be heard on the Moon, and the sky always appears blackโจ
#MoonFact
๐ @AstroMechanics
โจThis means that the surface of the Moon is unprotected from cosmic rays, meteorites and solar winds, and has huge temperature variations. The lack of atmosphere means no sound can be heard on the Moon, and the sky always appears blackโจ
#MoonFact
๐ @AstroMechanics
โจQuantum tunnelling or tunneling (US) is the Quantum mechanical phenomenon where a Wavefunction can propagate through a potential barrier.
๐The transmission through the barrier can be finite and depends exponentially on the barrier height and barrier width. The wavefunction may disappear on one side and reappear on the other side. The wavefunction and its first derivative are continuous. In steady-state, the probability flux in the forward direction is spatially uniform. No particle or wave is lost. Tunneling occurs with barriers of thickness around 1โ3 nm and smallerโจ
#QuantumTunneling
๐ @AstroMechanics
๐The transmission through the barrier can be finite and depends exponentially on the barrier height and barrier width. The wavefunction may disappear on one side and reappear on the other side. The wavefunction and its first derivative are continuous. In steady-state, the probability flux in the forward direction is spatially uniform. No particle or wave is lost. Tunneling occurs with barriers of thickness around 1โ3 nm and smallerโจ
#QuantumTunneling
๐ @AstroMechanics
๐ฅSupernovas are brighter than a galaxy.
โจFor a short period of time, a single supernova can easily outshine an entire galaxy of stars, releasing as much energy in a single burst as our Sun will in its entire, 10 billion-year lifespan.
โUniverse's most luminous supernova was 50 times brighter than the Milky Way.
#Supernova
๐ @AstroMechanics
โจFor a short period of time, a single supernova can easily outshine an entire galaxy of stars, releasing as much energy in a single burst as our Sun will in its entire, 10 billion-year lifespan.
โUniverse's most luminous supernova was 50 times brighter than the Milky Way.
#Supernova
๐ @AstroMechanics
๐1
What's the closest active galaxy to planet Earth?
โจThat would be Centaurus A, only 11 million light-years distant. Spanning over 60,000 light-years, the peculiar elliptical galaxy is also known as NGC 5128. Forged in a collision of two otherwise normal galaxies, Centaurus A's fantastic jumble of young blue star clusters, pinkish star forming regions, and imposing dark dust lanes are seen here in remarkable detail. The colorful galaxy portrait is a composite of image data from space- and ground-based telescopes large and small. Near the galaxy's center, left over cosmic debris is steadily being consumed by a central black hole with a billion times the mass of the Sunโจ
#Galaxy
๐ @AstroMechanics
โจThat would be Centaurus A, only 11 million light-years distant. Spanning over 60,000 light-years, the peculiar elliptical galaxy is also known as NGC 5128. Forged in a collision of two otherwise normal galaxies, Centaurus A's fantastic jumble of young blue star clusters, pinkish star forming regions, and imposing dark dust lanes are seen here in remarkable detail. The colorful galaxy portrait is a composite of image data from space- and ground-based telescopes large and small. Near the galaxy's center, left over cosmic debris is steadily being consumed by a central black hole with a billion times the mass of the Sunโจ
#Galaxy
๐ @AstroMechanics
โจ"We are just an advanced breed of Monkeys on a minor planet of a very average star. But we can understand the universe. That makes us something very special."โจ
------------Stephen Hawking--------------
#Quote
๐ @AstroMechanics
------------Stephen Hawking--------------
#Quote
๐ @AstroMechanics
How were the first Galaxies formed๐ซ?
โจ13.8 billion years ago, after the Big Bang gas and dust particles spread all over the Universe. Two of the most abundant constituents of our Universe at that time were Hydrogen and Dark Matter. Researchers haven't found Dark Matter yet, but assuming that it had a great role for building our Universe. Dark Matter keeps different objects together due to it's gravitational effect. Dust particles after being gravitationally collapsed and by the process of Nuclear Fusion formed stars. Due to the gravitational effect of Dark Matter, stars formed were attracted to each other. Those stars who grew old, after Supernova explotion formed Black holes. Dust and gas around the Black hole present started revolving it and formed a disk. The formations took place were making a scenario known as Bottom up scenario, those scenarios we know today for the formation of Galaxiesโจ
#Galaxy
๐ @AstroMechanics
โจ13.8 billion years ago, after the Big Bang gas and dust particles spread all over the Universe. Two of the most abundant constituents of our Universe at that time were Hydrogen and Dark Matter. Researchers haven't found Dark Matter yet, but assuming that it had a great role for building our Universe. Dark Matter keeps different objects together due to it's gravitational effect. Dust particles after being gravitationally collapsed and by the process of Nuclear Fusion formed stars. Due to the gravitational effect of Dark Matter, stars formed were attracted to each other. Those stars who grew old, after Supernova explotion formed Black holes. Dust and gas around the Black hole present started revolving it and formed a disk. The formations took place were making a scenario known as Bottom up scenario, those scenarios we know today for the formation of Galaxiesโจ
#Galaxy
๐ @AstroMechanics
๐ฅDid you know?
โจIn 2006, astronomers spotted a huge cloud of fiery gas which is 3 million light-years in diameter and hotter than the center of our Sun. The gas ball contains more matter than a 1000 billion Sunsโจ
#Fact
๐ @AstroMechanics
โจIn 2006, astronomers spotted a huge cloud of fiery gas which is 3 million light-years in diameter and hotter than the center of our Sun. The gas ball contains more matter than a 1000 billion Sunsโจ
#Fact
๐ @AstroMechanics
โจLet The Old Year End And The New Year Begin With The Warmest Of Aspirations!!
~HAPPY NEW YEAR 2022โจ๐ฎ!!
#HappyNewYear
๐ @AstroMechanics
~HAPPY NEW YEAR 2022โจ๐ฎ!!
#HappyNewYear
๐ @AstroMechanics
๐Astronomy Calendar Of Celestial Events For Calendar Year 2022
๐January 2 - New Moon. The Moon will located on the same side of the Earth as the Sun and will not be visible in the night sky. This phase occurs at 18:35 UTC. This is the best time of the month to observe faint objects such as galaxies and star clusters because there is no moonlight to interfere.
๐January 3, 4 - Quadrantids Meteor Shower. The Quadrantids is an above average shower, with up to 40 meteors per hour at its peak. It is thought to be produced by dust grains left behind by an extinct comet known as 2003 EH1, which was discovered in 2003.
๐January 7 - Mercury at Greatest Eastern Elongation. The planet Mercury reaches greatest eastern elongation of 19.2 degrees from the Sun. This is the best time to view Mercury since it will be at its highest point above the horizon in the evening sky. Look for the planet low in the western sky just after sunset.
๐January 17 - Full Moon. The Moon will be located on the opposite side of the Earth as the Sun and its face will be will be fully illuminated. This phase occurs at 23:51 UTC. This full moon was known by early Native American tribes as the Wolf Moon because this was the time of year when hungry wolf packs howled outside their camps. This moon has also been know as the Old Moon and the Moon After Yule.
๐February 1 - New Moon. The Moon will located on the same side of the Earth as the Sun and will not be visible in the night sky. This phase occurs at 05:48 UTC. This is the best time of the month to observe faint objects such as galaxies and star clusters because there is no moonlight to interfere.
๐February 16 - Full Moon. The Moon will be located on the opposite side of the Earth as the Sun and its face will be will be fully illuminated. This phase occurs at 16:59 UTC. This full moon was known by early Native American tribes as the Snow Moon because the heaviest snows usually fell during this time of the year.
๐February 16 - Mercury at Greatest Western Elongation. The planet Mercury reaches greatest western elongation of 26.3 degrees from the Sun. This is the best time to view Mercury since it will be at its highest point above the horizon in the morning sky. Look for the planet low in the eastern sky just before sunrise
#AstronomicalEvents
๐ @AstroMechanics
๐January 2 - New Moon. The Moon will located on the same side of the Earth as the Sun and will not be visible in the night sky. This phase occurs at 18:35 UTC. This is the best time of the month to observe faint objects such as galaxies and star clusters because there is no moonlight to interfere.
๐January 3, 4 - Quadrantids Meteor Shower. The Quadrantids is an above average shower, with up to 40 meteors per hour at its peak. It is thought to be produced by dust grains left behind by an extinct comet known as 2003 EH1, which was discovered in 2003.
๐January 7 - Mercury at Greatest Eastern Elongation. The planet Mercury reaches greatest eastern elongation of 19.2 degrees from the Sun. This is the best time to view Mercury since it will be at its highest point above the horizon in the evening sky. Look for the planet low in the western sky just after sunset.
๐January 17 - Full Moon. The Moon will be located on the opposite side of the Earth as the Sun and its face will be will be fully illuminated. This phase occurs at 23:51 UTC. This full moon was known by early Native American tribes as the Wolf Moon because this was the time of year when hungry wolf packs howled outside their camps. This moon has also been know as the Old Moon and the Moon After Yule.
๐February 1 - New Moon. The Moon will located on the same side of the Earth as the Sun and will not be visible in the night sky. This phase occurs at 05:48 UTC. This is the best time of the month to observe faint objects such as galaxies and star clusters because there is no moonlight to interfere.
๐February 16 - Full Moon. The Moon will be located on the opposite side of the Earth as the Sun and its face will be will be fully illuminated. This phase occurs at 16:59 UTC. This full moon was known by early Native American tribes as the Snow Moon because the heaviest snows usually fell during this time of the year.
๐February 16 - Mercury at Greatest Western Elongation. The planet Mercury reaches greatest western elongation of 26.3 degrees from the Sun. This is the best time to view Mercury since it will be at its highest point above the horizon in the morning sky. Look for the planet low in the eastern sky just before sunrise
#AstronomicalEvents
๐ @AstroMechanics
๐1
Why is the Moon so dusty?
โจOn the Moon, the history of constant micrometeorite bombardment has blasted away at the rocky surface creating a layer of powdery lunar soil or regolith. For the Apollo astronauts and their equipment, the pervasive, fine, gritty dust was definitely a problem. On the lunar surface in December 1972, Apollo 17 astronauts Harrison Schmitt and Eugene Cernan needed to repair one of their rover's fenders in an effort to keep the rooster tails of dust away from themselves and their gear. This picture reveals the wheel and fender of their dust covered roverโจ
#Moon
๐ @AstroMechanics
โจOn the Moon, the history of constant micrometeorite bombardment has blasted away at the rocky surface creating a layer of powdery lunar soil or regolith. For the Apollo astronauts and their equipment, the pervasive, fine, gritty dust was definitely a problem. On the lunar surface in December 1972, Apollo 17 astronauts Harrison Schmitt and Eugene Cernan needed to repair one of their rover's fenders in an effort to keep the rooster tails of dust away from themselves and their gear. This picture reveals the wheel and fender of their dust covered roverโจ
#Moon
๐ @AstroMechanics
๐1
Westerlund 1๐
โจWesterlund 1 is a compact young super star cluster in the Milky Way galaxy, about 2.6 kpc (8480 ly) away from Earth.
It is one of the most massive young star clusters in the Milky Way, and was discovered by Bengt westerlund in 1961 but remained largely unstudied for many years due to high interstellar absorption in its direction. In the future, it will probably evolve into a globular clusterโจ
#Westerlund1
๐ @AstroMechanics
โจWesterlund 1 is a compact young super star cluster in the Milky Way galaxy, about 2.6 kpc (8480 ly) away from Earth.
It is one of the most massive young star clusters in the Milky Way, and was discovered by Bengt westerlund in 1961 but remained largely unstudied for many years due to high interstellar absorption in its direction. In the future, it will probably evolve into a globular clusterโจ
#Westerlund1
๐ @AstroMechanics
Can we see the flag on the Moon with a telescope๐?
โจYes, the flag is still on the moon, but you can't see it using a telescope. I found some statistics on the size of lunar equipment in a Press Kit for the Apollo 16 mission. The flag is 125 cm (4 feet) long, and you would need an optical wavelength telescope around 200 meters (~650 feet) in diameter to see it. The largest optical wavelength telescope that we have now is the Keck Telescope in Hawaii which is 10 meters in diameter. The Hubble Space Telescope is only 2.4 meters in diameter - much too smallโจ!
#Space
๐ @AstroMechanics
โจYes, the flag is still on the moon, but you can't see it using a telescope. I found some statistics on the size of lunar equipment in a Press Kit for the Apollo 16 mission. The flag is 125 cm (4 feet) long, and you would need an optical wavelength telescope around 200 meters (~650 feet) in diameter to see it. The largest optical wavelength telescope that we have now is the Keck Telescope in Hawaii which is 10 meters in diameter. The Hubble Space Telescope is only 2.4 meters in diameter - much too smallโจ!
#Space
๐ @AstroMechanics
๐ฅDid you know?
โจThe DNA sequence of Stephen Hawking is stored on a hard disk, called the immortality Drive, onboard the ISS. He was among a select group of human to have their DNA immortalizedโจ
#Fact
๐ @AstroMechanics
โจThe DNA sequence of Stephen Hawking is stored on a hard disk, called the immortality Drive, onboard the ISS. He was among a select group of human to have their DNA immortalizedโจ
#Fact
๐ @AstroMechanics