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In meteorology, a cloud is an aerosol consisting of a visible mass of minute liquid droplets, frozen crystals, or other particles suspended in the atmosphere of a planetary body or similar space. Water or various other chemicals may compose the droplets and crystals. On Earth, clouds are formed as a result of saturation of the air when it is cooled to its dew point, or when it gains sufficient moisture (usually in the form of water vapor) from an adjacent source to raise the dew point to the ambient temperature. They are seen in the Earth's homosphere, which includes the troposphere, stratosphere, and mesosphere. Nephology is the science of clouds, which is undertaken in the cloud physics branch of meteorology. There are two methods of naming clouds in their respective layers of the homosphere, Latin and common. Genus types in the troposphere, the atmospheric layer closest to Earth's surface, have Latin names due to the universal adoption of Luke Howard's nomenclature that was formally proposed in 1802. It became the basis of a modern international system that divides clouds into five physical forms which can be further divided or classified into altitude levels to derive ten basic genera. The main representative cloud types for each of these forms are stratus, cirrus, stratocumulus, cumulus, and cumulonimbus. Low-level clouds do not have any altitude-related prefixes. However mid-level stratiform and stratocumuliform types are given the prefix alto- while high-level variants of these same two forms carry the prefix cirro-. Genus types with sufficient vertical extent to occupy more than one level do not carry any altitude related prefixes. They are classified formally as low- or mid-level depending on the altitude at which each initially forms, and are also more informally characterized as multi-level or vertical. Most of the ten genera derived by this method of classification can be subdivided into species and further subdivided into varieties. Very low stratiform clouds that extend down to the Earth's surface are given the common names fog and mist, but have no Latin names. 64909
28 October 2013
Telescope: Skywatcher Mak 150
Camera: EOS 550D, movie crop mode
Processing: Registax, Autostakkert, CS3
The new The Rob and Melani Walton Center for Planetary Health at Arizona State University was designed by Grimshaw and Architekton.
This is a photograph taken with a small refractor telescope and a DSLR of two Deep-Sky objects located in the Northern Hemisphere constellation of Cassiopeia, the Queen. Although they look like being close to each other, they are located far apart from each other, both of course belonging to our Milky Way Galaxy collection of stars and nebulae.
The object at center is M52 (Messier 52, NGC 7654), an open star cluster of about 200 stars at an estimated distance of about 4,000 to 5,000 light years. It was discovered by Charles Messier on 1774. These stars were born from the same interstellar nebula of gas and dust about 35 million years ago, so this is a young star cluster by astronomy standards. This object, visible with a small telescope or even binoculars under clear, dark skies is sometimes called the Salt-and-Pepper cluster.
To the right of M52 we can see the Bubble nebula (NGC 7635), which was discovered by W. Herschel in 1787. This object is located further away from M52, at an estimated distance of about 11,000 light years. The Bubble Nebula is a strange planetary nebula, formed from a fast stellar wind of a hot, young, massive star located inside the nebula. As the wind comes off the star, it pushes the surrounding gas to form a giant sphere that is surrounded by a molecular cloud. The high-energy ultraviolet light from the star ionizes the gas atoms, causing them to glow. The star that illuminates the Bubble is some 25 to 40 times as massive as our Sun and thousands of times brighter. This Wolf-Rayet star will probably end up exploding as a supernova.
The Bubble nebula is much dimmer than M52 and requires a large telescope to be seen. Finally, at the upper right we can see a smaller nebula, which is catalogued as NGC 7538, at about 9,000 light years, a region of active star formation containing a protostars with a mass of about 300 solar masses.
I photographed these two objects back in 2017 but this time I managed to collect about 1,5 hours of data with the use of a CLS light pollution filter, so hopefully a better result was obtained.
Thanks to everyone for viewing - clear skies!
Details:
Telescope: Orion EON 80ED
Camera: Canon EOS 20Da
Mount: Vixen Sphinx (NexSXW)
Filter: Astronomik CLS
Guiding: 80/400 Skywatcher refractor - SkyWatcher SynGuider
Light frames: 20 x 5 mins (total: 100 mins), ISO 3200, Custom WB, calibrated with darks
Date: 26 October 2019
Processing: DSS 4.2.3, Adobe Photoshop 2020 with Astronomy Tools Actions set (spikes added to the brightest stars).
I gaze through the wormhole, fixed in space, experiencing the thrilling speed of of the citrus grove as it rushes past, propelled by the earth's movement, spinning and circling the sun, an ancient, frenetic dance set in motion long, long ago.
I close the wormhole and return to reading today's copy of the New York Times. Ah, a revival of Pippin opens this weekend. I must go.
littletinperson
Photo credit: bdopekarreuche
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SHIP: Proxima Cruiser by Color Alchemists!
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Taken @ Inspire Space Park
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The planetary nebula Sh2-188 commonly called the Dolphin, the Leaping Dolphin, the Shrimp, or the Firefox Nebula. But to me...
OTA: PlaneWave CDK20
GUIDER: Astrodon Monster MOAG
MOUNT: PlaneWave L-500
CAMERA: FLI ML-16803
GUIDE CAMERA: QHY 5-III 174 M
REDUCER: N/A
SOFTWARE: SGP, PhD2, PWI 3 & 4, Pixinsight, Starnet++, Photoshop, Topaz
FILTERS: 50mm square: Astrodon LRGB; 3nm Hα, SII, OIII, NII
ACCESSORIES: N/A
COLOR: Nebula NHO, Stars RGB
LOCATION: SRO
COPYRIGHT: 2019 JKLOVELACEPHOTOGRAPHY
To see more of my work and to buy prints visit www.jklovelacephotography.com/pages/space
The Owl Nebula, M97 or NGC 3587 is a planetary nebula located in the constellation of Ursa Major. It lies around 2.030 light years distant and has an estimated age of about 8,000 years. The central 14th magnitude star is now condensing into a white dwarf.
Processed using by combining a set of broadband data with a set of narrowband data.
Broadband:
TSAPO130Q @f/5
QHY183M Gain11
Baader LRGB fiter set
Acquisition time 4hrs45mins
Narrowband:
150mm Esprit
QHY294PROM Gain2900
Astronomik 6nm Ha and OIII filters
Acquisition time 5hrs30mins.
Processed using RegiStar, Straton Star Removal, Pixinsight and Photoshop.
The partial eclipse shot from London 13 minutes after it began.
Lunt LS60 THa scope and ZWO ASI174MM planetary camera.
Flickr Lounge ~ Creative Tabletop Photography
Thank you to everyone who pauses long enough to look at my photo. All comments and Faves are very much appreciated
Standing by the sea, I look out into infinity.
My gaze sweeps from left to right, and I can see almost 180 degrees. With my own eyes, I can observe the curvature of the horizon. I’ve come face to face with the planet.
It does something to you, to see it with your own eyes, this incomprehensible scale of the ocean. It's liberating. You let go of left-brain knowledge and lose yourself in awe.
Our ancient ancestors all the way back to the first animals have been seeing oceans just like this, and if there are other living worlds out there, they may have similar watery expanses.
Standing by the sea, I feel the oneness of it all. I feel connected to eternity.
Absolutely thrilled to photograph Venus, Jupiter and Mars this morning! We had hazy cloud but could still make out Mars with the naked eye ;0)
And wonderful to have this photograph featured amongst so many fantastic captured from around the world!
www.universetoday.com/123121/stunning-triple-planetary-co...
Keep looking up!
Well used baseball lit from the side for the Macro Mondays group, challenge: Sidelit.
Happy Macro Monday!
An annular planetary nebula in Aquila.
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Image exposure: 67 minutes
Image size: 24 x 16 arcmin
Image date: 2022-07-27
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"Planetary by My Chrmical Romance"
There might be something outside your window
But you'll just never know
There could be something right past the turnpike gates
But you'll just never know
If my velocity starts to make you sweat
Then just don't let go
And if their heaven ain't got a vacancy
Then we just, then we just, then we just
Then we just get up and go!
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Edited in Topaz Studio
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