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Caldwell 21, also known as NGC 4449, is an irregular dwarf galaxy located over 10 million light-years from Earth. This star-speckled Hubble image captures the chaotic, ongoing processes of stellar evolution within the galaxy.
In the dusty pink areas, brand new stars are flaring into life. Star formation activity is so widespread and intense here that astronomers refer to it as a starburst. While starbursts are typically confined to the central, more densely packed regions of galaxies, star-forming activity in Caldwell 21 reaches all the way out to the galaxy’s edge. The starburst may have been spurred by interactions with another galaxy, or perhaps several. Since it is close enough to be observed in great detail, Caldwell 21 provides the opportunity to investigate the processes that may have shaped galaxies in the early universe.
The bluish-white areas are populated by vibrant, young, massive stars. These high-mass stars are doomed to live short lives since they burn through their nuclear fuel so quickly. Once they run out of fuel, they will end their lives in violent explosions. Medium-mass stars like our Sun can expect lifetimes of roughly 10 billion years and go out much less dramatically, gradually puffing away their outer shells of gas into a beautiful nebula.
Hubble’s Advanced Camera for Surveys imaged Caldwell 21 in visible and infrared light. The observations are helping astronomers better understand the history of star formation in a starburst galaxy where interactions with another galaxy seem to have played a role.
Caldwell 21 stretches less than 20,000 light-years across space — a staggering distance, but only about one-fifth the diameter of our own galaxy, the Milky Way. Discovered in 1788 by astronomer William Herschel, Caldwell 21 is part of a group of galaxies found in the constellation Canes Venatici. With a magnitude of 9.6, it is fairly easy to spot in a telescope, and in a large telescope it’s a rewarding object, exhibiting a complex pattern of bright knots. It is best viewed in late spring from the Northern Hemisphere. Southern Hemisphere observers can find it low above the northern horizon in the autumn.
Credit: NASA, ESA, A. Aloisi (STScI/ESA), and the Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration
For more information about Hubble’s observations of Caldwell 21, see:
hubblesite.org/contents/news-releases/2007/news-2007-26.html
For Hubble's Caldwell catalog website and information on how to find these objects in the night sky, visit:
Still just over another year and a half from Violet going to school but I am already panicking about which one, how's she'll do etc. There are two on our road. One is an excellent Catholic school and the other a mediocre state school, our proximity to both means my road is HELL during school run and I can often be seen standing on my horn. There are loads of schools around here but it's going to be a tough decision.
BTW - are these painted free hand? like lines? because they are bloody brilliant. I can't imagine that they have as stencil!
Also, SCHOOL is one of those words that makes less sense the more i look at it.
HBW. smooth bokeh, am bored of the sparkly stuff.
Week 21: "Artistic: Fantasy"
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This week wasn't technically a portrait, but Maggie does her own makeup so well I couldn't think of a better subject
Dennis Falcon with Wadham Stringer Vanguard bodywork in Piccadilly Manchester May 1996. Originally supplied to National Bus Company NBC subsidiary Alder Valley for LondonLink commuter services through the Thames Valley.
Hannah plays the 21" Pickerel as Truff looks down the hole to see what comes out of it. There is nothing as fun in fishing as hand over hand combat, trying to tire out a fish so that you can get it on the ice. We have taken as long as 15 minutes to get a big pike or trout in. Pickerel generally make a half dozen good runs before you can work them into the hole.
The Mikoyan-Gurevich MiG-21 (Russian: Микоян и Гуревич МиГ-21; NATO reporting name: Fishbed) is a supersonic jet fighter aircraft, designed by the Mikoyan-Gurevich Design Bureau in the Soviet Union. It was popularly nicknamed "Balalaika", from the aircraft's planform-view resemblance to the Russian stringed musical instrument or ołówek (English: pencil) by Polish pilots due to the shape of its fuselage.
Early versions are considered second-generation jet fighters, while later versions are considered to be third-generation jet fighters. Some 50 countries over four continents have flown the MiG-21, and it still serves many nations a half-century after its maiden flight. The fighter made aviation records. At least by name, it is the most-produced supersonic jet aircraft in aviation history and the most-produced combat aircraft since the Korean War, and it had the longest production run of a combat aircraft (1959 to 1985 over all variants).
Source: Wikipedia
We can see also at the right side, probably a Mikoyan-Gurevich MiG-15.
Camera Nikon D5100
Exposure 0.003 sec (1/320)
Aperture f/7.1
Focal Length 55 mm
ISO Speed 100
Quizá se convierta en la 21/365 pero no lo sé, voy a intentar hacer una mejor a lo largo del día (ya que sin ps todo es un poco más dificil) pero por si acaso no la consigo, aquí la dejo =)
On Boxing Day of 2016, Go North East operated an extension of the 21 to Bishop Auckland, in a similar fashion to the former Sunday operation that saw a Hybrid operate the X21 between Durham and Bishop Auckland every hour. 6060 (NK62 CFN) is seen sitting in Eldon Square Bus Station, laying over at the set-down stand.
Chattanooga TN - Engine 21
1982 Seagrave
1250 GPM - 500 Tank - Quad
#M 75367 Model: HD 20467
By the time that this rig was constructed, a full-sized long wheelbase quad was a pretty rare piece of apparatus. Chattanooga decided that this unit was simply too big and sold it to the Camp Taylor Fire District which is located in suburban Louisville, Kentucky.
Sofie (Stranger 21)
It's so wonderful to still be a child, even when you're a bit older. As a child, Sofie often imitated the statues she saw when visiting museums. And now, again, as she visits the Beelden Aan Zee museum with her elderly mother, she's doing what she used to love: sitting like that statue by British visual artist Ryan Gander. It's a chance to be silly and be a child again. I can totally understand that. Her mother took pictures of it, and I was allowed to do so too. Thanks, Sofie.
This is already the 21st photo of the 5th round of the 100stangers project.
Find out more about the project and see pictures taken by other photographers at the group 100 Strangers | Flickr: www.flickr.com/groups/100strangers/
Véhicule : DIETRICH City 21 (FIAT Ducato) €6
Identification : 8276 (DY-786-BY)
Exploitant : Transdev Urbain Bassin d'Arcachon
Dépôt : La Teste-de-Buch
Réseau : BAIA (Communauté d'Agglo. du Bassin d'Arcachon Sud)
Ligne : n.c.
Voiture : n.c.
Destination : Sans Voyageurs
31/07/2019 15:50
Arrêt BAIA "Gare d'ARCACHON", Gare d'Arcachon ; Arcachon
The Yokohama Landmark Tower (横浜ランドマークタワー Yokohama Randomāku Tawā) is the second tallest building[1] and 4th tallest structure in Japan, standing 296.3 m (972 ft) high. It is located in the Minato Mirai 21 district of Yokohama city, right next to Yokohama Museum of Art. Work on the building was finished in 1993. When built, it was the tallest building in Japan until it was surpassed by Abeno Harukas in 2012.[2] When opened, it had the highest observation deck in Japan.[3]
The building contains a five-star hotel which occupies floors 49-70, with 603 rooms in total.[1] The lower 48 floors contain shops, restaurants, clinics, and offices. The building contains two tuned mass dampers on the (hidden) 71st floor on opposite corners of the building.[citation needed]
On the 69th floor there is an observatory, Sky Garden, from which one can see a 360-degree view of the city, and on clear days Mount Fuji.[citation needed]
The tower contains what were at their inauguration the world's second fastest elevators, which reach speeds of 12.5 m/s (41 ft/s)[1] (45.0 km/h (28.0 mph)). This speed allows the elevator to reach the 69th floor in approximately 40 seconds.[3] The elevators' speed record was surpassed by elevators of Taipei 101 (60.6 km/h, 37.7 mi/h) in 2004.
The building was designed by the architecture and engineering division of Mitsubishi Estate, now Mitsubishi Jisho Sekkei and Hugh Stubbins and Associates, later KlingStubbins.
Minato Mirai 21 (みなとみらい21 Minato Mirai Nijūichi), (often known as simply Minato Mirai and abbreviated as MM) is the central business district of Yokohama, Japan. Initially developed in the 1980s, Minato Mirai 21 was designed as a large master-planned development and new urban center planned to connect Yokohama's traditionally important areas and commercial centers of Kannai and the Yokohama Station area.
Today, Minato Mirai is a major center for business, shopping, and tourism, attracting visitors and businesspersons throughout the Greater Tokyo Area. The business district is host to several major hotels, office towers including the Yokohama Landmark Tower, the Pacifico Yokohama convention center, art museums, and numerous cafés and shops in shopping centers and along its central pedestrian mall. The area continues to be developed as originally envisioned in the 1980s.
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Photograph taken by
Jos van der Heiden (2017)
Amtrak's second Siemens ALC-42 intercity Charger, number 301, in the "Day One" (i.e. May 1, 1971) paint scheme, in the consist of train 30, the "Capitol Limited" at Weverton, Maryland, July 21, 2021.
Hayedo Tejera Negra Cantalojas, Guadalajara Castilla la Mancha / Spain
© 2014 All rights reserved by Félix Abánades , Downloading and using without permission is illegal.
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Parque natural
Tejera Negra es un hayedo situado en Cantalojas, en el rincón noroccidental de la provincia de Guadalajara (España). Forma parte del macizo de Ayllón, en el extremo oriental del Sistema Central. Es uno de los hayedos más meridionales de Europa.
En 1974 se declara al hayedo de Tejera Negra sitio natural de interés nacional y en 1978 se declara parque natural, que se amplió en 1987. Desde la creación del parque natural de la Sierra Norte de Guadalajara, el 22 de marzo de 2011, quedó integrado dentro de éste, por lo que se derogó su anterior declaración de parque natural.