Masks Are Up On Store
Masks are up on store
More Posts from Matthewjopdyke and Others
What a nice vantage point :)
The Milky Way seen from a sea cave in Malibu, California
source
I am pleased to announce the release of FTB Pathway Publications - Pathway to the Stars: Part 6.1, Trilogy!!! Enjoy the continuation of the journey!
No matter what people tell you, words and ideas can change the world.
http://www.brainyquote.com/quotes/authors/r/robin_williams.html
IC 63 — nicknamed the Ghost Nebula — is about 550 light-years from Earth. The nebula is classified as both a reflection nebula — as it is reflecting the light of a nearby star — and as an emission nebula — as it releases hydrogen-alpha radiation. Both effects are caused by the gigantic star Gamma Cassiopeiae. The radiation of this star is also slowly causing the nebula to dissipate.
https://www.spacetelescope.org/images/heic1818a/
Largest Batch of Earth-size, Habitable Zone Planets
Our Spitzer Space Telescope has revealed the first known system of seven Earth-size planets around a single star. Three of these planets are firmly located in an area called the habitable zone, where liquid water is most likely to exist on a rocky planet.
This exoplanet system is called TRAPPIST-1, named for The Transiting Planets and Planetesimals Small Telescope (TRAPPIST) in Chile. In May 2016, researchers using TRAPPIST announced they had discovered three planets in the system.
Assisted by several ground-based telescopes, Spitzer confirmed the existence of two of these planets and discovered five additional ones, increasing the number of known planets in the system to seven.
This is the FIRST time three terrestrial planets have been found in the habitable zone of a star, and this is the FIRST time we have been able to measure both the masses and the radius for habitable zone Earth-sized planets.
All of these seven planets could have liquid water, key to life as we know it, under the right atmospheric conditions, but the chances are highest with the three in the habitable zone.
At about 40 light-years (235 trillion miles) from Earth, the system of planets is relatively close to us, in the constellation Aquarius. Because they are located outside of our solar system, these planets are scientifically known as exoplanets. To clarify, exoplanets are planets outside our solar system that orbit a sun-like star.
In this animation, you can see the planets orbiting the star, with the green area representing the famous habitable zone, defined as the range of distance to the star for which an Earth-like planet is the most likely to harbor abundant liquid water on its surface. Planets e, f and g fall in the habitable zone of the star.
Using Spitzer data, the team precisely measured the sizes of the seven planets and developed first estimates of the masses of six of them. The mass of the seventh and farthest exoplanet has not yet been estimated.
For comparison…if our sun was the size of a basketball, the TRAPPIST-1 star would be the size of a golf ball.
Based on their densities, all of the TRAPPIST-1 planets are likely to be rocky. Further observations will not only help determine whether they are rich in water, but also possibly reveal whether any could have liquid water on their surfaces.
The sun at the center of this system is classified as an ultra-cool dwarf and is so cool that liquid water could survive on planets orbiting very close to it, closer than is possible on planets in our solar system. All seven of the TRAPPIST-1 planetary orbits are closer to their host star than Mercury is to our sun.
The planets also are very close to each other. How close? Well, if a person was standing on one of the planet’s surface, they could gaze up and potentially see geological features or clouds of neighboring worlds, which would sometimes appear larger than the moon in Earth’s sky.
The planets may also be tidally-locked to their star, which means the same side of the planet is always facing the star, therefore each side is either perpetual day or night. This could mean they have weather patterns totally unlike those on Earth, such as strong wind blowing from the day side to the night side, and extreme temperature changes.
Because most TRAPPIST-1 planets are likely to be rocky, and they are very close to one another, scientists view the Galilean moons of Jupiter – lo, Europa, Callisto, Ganymede – as good comparisons in our solar system. All of these moons are also tidally locked to Jupiter. The TRAPPIST-1 star is only slightly wider than Jupiter, yet much warmer.
How Did the Spitzer Space Telescope Detect this System?
Spitzer, an infrared telescope that trails Earth as it orbits the sun, was well-suited for studying TRAPPIST-1 because the star glows brightest in infrared light, whose wavelengths are longer than the eye can see. Spitzer is uniquely positioned in its orbit to observe enough crossing (aka transits) of the planets in front of the host star to reveal the complex architecture of the system.
Every time a planet passes by, or transits, a star, it blocks out some light. Spitzer measured the dips in light and based on how big the dip, you can determine the size of the planet. The timing of the transits tells you how long it takes for the planet to orbit the star.
The TRAPPIST-1 system provides one of the best opportunities in the next decade to study the atmospheres around Earth-size planets. Spitzer, Hubble and Kepler will help astronomers plan for follow-up studies using our upcoming James Webb Space Telescope, launching in 2018. With much greater sensitivity, Webb will be able to detect the chemical fingerprints of water, methane, oxygen, ozone and other components of a planet’s atmosphere.
At 40 light-years away, humans won’t be visiting this system in person anytime soon…that said…this poster can help us imagine what it would be like:
Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com
Constellations: Andromeda
Andromeda is most prominent during autumn evenings in the Northern Hemisphere, along with several other constellations named for characters in the Perseus myth.
Its brightest star, Alpha Andromedae, is a binary star that has also been counted as a part of Pegasus, while Gamma Andromedae is a colorful binary and a popular target for amateur astronomers. Only marginally dimmer than Alpha, Beta Andromedae is a red giant, its color visible to the naked eye. The constellation’s most obvious deep-sky object is the naked-eye Andromeda Galaxy (M31, also called the Great Galaxy of Andromeda), the closest spiral galaxy to the Milky Way and one of the brightest Messier objects.
In this image of the Andromeda Galaxy, Messier 32 is to the left of the center.
Several fainter galaxies, including M31’s companions M110 and M32, as well as the more distant NGC 891, lie within Andromeda. The Blue Snowball Nebula, a planetary nebula, is visible in a telescope as a blue circular object.
NGC 891, as taken with amateur equipment
Along with the Andromeda Galaxy and its companions, the constellation also features NGC 891 (Caldwell 23), a smaller galaxy just east of Almach. It is a barred spiral galaxy seen edge-on, with a dark dust lane visible down the middle.
In addition to the star clusters NGC 752 and NGC 7686, there is also the planetary nebula NGC 7662.
Each November, the Andromedids meteor shower appears to radiate from Andromeda. The shower peaks in mid-to-late November every year, but has a low peak rate of fewer than two meteors per hour. Astronomers have often associated the Andromedids with Biela’s Comet, which was destroyed in the 19th century, but that connection is disputed. source
Jupiter and Saturn appear to the naked eye as a single star, dubbed the "Christmas Star," last seen 800 years ago. Viewed from my deck. 🤩 #christmasstar #jupitersaturnconjunction https://www.instagram.com/p/CJFbSF2rMPv/?igshid=tz61xuv73023
Promo video put together by my wonderful spouse. Thank you, Kimmy! Join our cast of heroes as they prepare civilization to go Further than Before! #FurtherthanBefore #PathwaytotheStars #ScifiFantasy #neuroscience #physics #physiology #biotech #longevity #CRISPR #politicalscifi #strongfemalelead #strongfemalerolemodel #strongmalerolemodel #spaceopera
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Further Than Before: Pathway to the Stars, Parts 1 & 2
Further Than Before: Pathway to the Stars, Parts 1 & 2
As the author of both novels, Part 1 and its sequel, of course, I am proud of this. That said, it is a work in progress, or a living-published-document since I am an amateur indie writer and the learning curve can be steep at times. The story is great, the plot is great, the characters are magnificent, but my concern is how others might view the flow. Since I wrote this, care about it, etc., I…
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Must watch: ATB Future Memories (YouTube) https://youtu.be/QpLrjifXT1w https://www.instagram.com/p/BsPJ-vfH-Jr/?utm_source=ig_tumblr_share&igshid=zd40u6v4m410
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matthewjopdyke reblogged this · 4 years ago
