Skip to main content

Search

Items tagged with: astronomy


 
#science #astronomy #planets
Hubble Space Telescope Captures ‘Birth of Massive Storm’ on Neptune

Geek.com: Hubble Space Telescope Captures 'Birth of Massive Storm' on Neptune - Geek.com (Genevieve Scarano)


 
#science #astronomy #planets
Hubble Space Telescope Captures ‘Birth of Massive Storm’ on Neptune

Geek.com: Hubble Space Telescope Captures 'Birth of Massive Storm' on Neptune - Geek.com (Genevieve Scarano)


 

#Equinox on #Planet #Earth

#Astronomy #Picture of the Day


Welcome to #spring / #autumn

https://apod.nasa.gov/apod/ap190320.html


#APOD


 
APOD: 2019 January 11 - Partial Eclipse over Beijing




On January 6 the New Moon rose in silhouette with the Sun seen from northeastern Asia. Near maximum, the dramatic partial solar eclipse is captured in this telephoto view through hazy skies. In the foreground, the hill top Wanchun pavilion overlooking central Beijing's popular Forbidden City hosts eclipse-watching early morning risers. This was the first of five, three solar and two lunar, eclipses for 2019. Next up is a total lunar eclipse during this month's Full Perigee Moon. At night on January 21, that celestial shadow play will be visible from the hemisphere of planet Earth that includes the Americas, Europe, and western Africa.

https://apod.nasa.gov/apod/ap190111.html

#astronomy #picture #space #NASA #APOD


 
Image/photo

M106: A Spiral Galaxy with a Strange Center


Image Credit: NASA, ESO , NAOJ, Giovanni Paglioli; Assembling and Processing: R. Colombari and R. Gendler

Explanation: What's happening at the center of spiral galaxy #M106? A swirling disk of stars and gas, M106's appearance is dominated by blue spiral arms and red dust lanes near the nucleus, as shown in the featured image. The core of M106 glows brightly in radio waves and X-rays where twin jets have been found running the length of the galaxy. An unusual central glow makes M106 one of the closest examples of the Seyfert class of galaxies, where vast amounts of glowing gas are thought to be falling into a central massive black hole. M106, also designated #NGC4258, is a relatively close 23.5 million light years away, spans 60 thousand light years across, and can be seen with a small telescope towards the constellation of the Hunting Dogs (Canes Venatici).

#astrophotography #astronomy #space #APOD #galaxy


 
Image/photo

M106: A Spiral Galaxy with a Strange Center


Image Credit: NASA, ESO , NAOJ, Giovanni Paglioli; Assembling and Processing: R. Colombari and R. Gendler

Explanation: What's happening at the center of spiral galaxy #M106? A swirling disk of stars and gas, M106's appearance is dominated by blue spiral arms and red dust lanes near the nucleus, as shown in the featured image. The core of M106 glows brightly in radio waves and X-rays where twin jets have been found running the length of the galaxy. An unusual central glow makes M106 one of the closest examples of the Seyfert class of galaxies, where vast amounts of glowing gas are thought to be falling into a central massive black hole. M106, also designated #NGC4258, is a relatively close 23.5 million light years away, spans 60 thousand light years across, and can be seen with a small telescope towards the constellation of the Hunting Dogs (Canes Venatici).

#astrophotography #astronomy #space #APOD #galaxy


 

Who really is the earth's closes neighbour?


As it turns out, by some phenomenon of carelessness, ambiguity, or groupthink, science popularizers have disseminated information based on a flawed assumption about the average distance between planets. Using a mathematical method that we devised, we determine that when averaged over time, Earth’s nearest neighbor is in fact Mercury.

By using a more accurate method for estimating the average distance between two orbiting bodies, we find that this distance is proportional to the relative radius of the inner orbit. In other words, Mercury is closer to Earth, on average, than Venus is because it orbits the Sun more closely. Further, Mercury is the closest neighbor, on average, to each of the other seven planets in the solar system.

For two bodies with roughly coplanar, concentric, circular orbits, the average distance between the two bodies decreases as the radius of the inner orbit decreases. It’s clear from this corollary, and from the table, that Mercury (average orbital radius of 0.39 AU), not Venus (average radius of 0.72 AU), is the closest planet to Earth on average. In fact, Mercury is even the closest planet to Neptune. (And yes, to Pluto too: Though the corollary doesn’t work as well for the dwarf planet, with its orbital inclination of 17° and eccentricity of 0.25, its nearest neighbor is also Mercury.)
#Science #Astronomy #PlanetarySystem #News #Mercury #Venus #Earth


 
Rings Around the Sun

#astronomy #space #solar system #planets
Surprising Discovery Revealed After Sifting Through Solar System Dust


 

#Touchdown on #Asteroid #Ryugu

#Astronomy #Picture of the Day


https://apod.nasa.gov/apod/ap190312.html


#APOD


 
Random image from the archives

APOD: 2003 June 24 - The Sun's Surface in 3D





How smooth is the Sun? The new Swedish 1-m Solar Telescope, deployed in the Canary Islands only last year, allows imaging of objects less than 100-km across on the Sun's surface. When pointed toward the Sun's edge, surface objects now begin to block each other, indicating true three-dimensional information. Close inspection of the image reveals much vertical information, including spectacular light-bridges rising nearly 500-km above the floor of sunspots near the top of the image. Also visible in the above false-color image are hundreds of bubbling granules, each about 1000-km across, and small bright regions known as faculas.

https://apod.nasa.gov/apod/ap030624.html

#astronomy #picture #space #NASA #APOD


 
Random image from the archives

APOD: 2003 June 24 - The Sun's Surface in 3D




How smooth is the Sun? The new Swedish 1-m Solar Telescope, deployed in the Canary Islands only last year, allows imaging of objects less than 100-km across on the Sun's surface. When pointed toward the Sun's edge, surface objects now begin to block each other, indicating true three-dimensional information. Close inspection of the image reveals much vertical information, including spectacular light-bridges rising nearly 500-km above the floor of sunspots near the top of the image. Also visible in the above false-color image are hundreds of bubbling granules, each about 1000-km across, and small bright regions known as faculas.

https://apod.nasa.gov/apod/ap030624.html

#astronomy #picture #space #NASA #APOD


 
Random image from the archives

APOD: 2003 June 24 - The Sun's Surface in 3D




How smooth is the Sun? The new Swedish 1-m Solar Telescope, deployed in the Canary Islands only last year, allows imaging of objects less than 100-km across on the Sun's surface. When pointed toward the Sun's edge, surface objects now begin to block each other, indicating true three-dimensional information. Close inspection of the image reveals much vertical information, including spectacular light-bridges rising nearly 500-km above the floor of sunspots near the top of the image. Also visible in the above false-color image are hundreds of bubbling granules, each about 1000-km across, and small bright regions known as faculas.

https://apod.nasa.gov/apod/ap030624.html

#astronomy #picture #space #NASA #APOD


 
Learn about spaghettification. Ethan explains it well as usual.

#science #astronomy


 

New Horizons Spacecraft Returns Its Sharpest Views of Ultima Thule


#astronomy #space #UltimaThule #NewHorizons


 
APOD: 2019 February 5 - Perijove 16: Passing Jupiter

Image/photo
Video: https://www.youtube.com/embed/c4TU3arrZR8

Watch Juno zoom past Jupiter again. NASA's robotic spacecraft Juno is continuing on its 53-day, highly-elongated orbits around our Solar System's largest planet. The featured video is from perijove 16, the sixteenth time that Juno has passed near Jupiter since it arrived in mid-2016. Each perijove passes near a slightly different part of Jupiter's cloud tops. This color-enhanced video has been digitally composed from 21 JunoCam still images, resulting in a 125-fold time-lapse. The video begins with Jupiter rising as Juno approaches from the north. As Juno reaches its closest view -- from about 3,500 kilometers over Jupiter's cloud tops -- the spacecraft captures the great planet in tremendous detail. Juno passes light zones and dark belt of clouds that circle the planet, as well as numerous swirling circular storms, many of which are larger than hurricanes on Earth. As Juno moves away, the remarkable dolphin-shaped cloud is visible. After the perijove, Jupiter recedes into the distance, now displaying the unusual clouds that appear over Jupiter's south. To get desired science data, Juno swoops so close to Jupiter that its instruments are exposed to very high levels of radiation.

https://apod.nasa.gov/apod/ap190205.html

\#astronomy #picture #space #NASA #APOD


 

#Perijove 16: Passing #Jupiter

#Astronomy #Picture of the Day


https://apod.nasa.gov/apod/ap190205.html


#APOD