View allAll Photos Tagged Omega
Dhaka, Bangladesh, 2016
Omega is the last Greek alphabet, often used to denote the last, the end, or the ultimate limit of a set. This is an aerial view of my Bangladesh, my great Omega.
Lotus Omega at the Essen Motorshow.
The Lotus Omega was the result of a short collaboration between Lotus and Opel.
It's basically a Opel Omega A which were tuned by Lotus.
The external differences were minimal to the five seater with only the rear spoiler, air intakes on the bonnet, Lotus badges on the front wings and bootlid, and considerably wider wheel arches telling it apart from any other Omega. The car was only sold in one colour, a shade of British racing green called Imperial Green, a very dark green that in anything but direct light appears black.
988 cars were built, 393 of them were sold in germany.
The Lotus Omega held the title of the fastest four door sedan for some years. The cars are now starting to become modern classics as low mileage, well looked after examples become rare.
In Great Britain it is known as Lotus Carlton, because the Opel Omega was sold as Vauxhall Carlton there.
No doubt about it – the largest, most massive and most glorious Milky Way globular cluster in the entire sky is Omega Centauri!
I’ve imaged this stunning object several times before but this is the first time using the ZWO ASI071 camera.
Object Details:
Designation: Caldwell 80, NGC 5139.
Constellation: Centaurus.
Visual magnitude: +3.7
Apparent size: 55′
Diameter: 271 light years.
Distance: 17,000 light years.
Altitude: 67° above SE horizon.
Image:
Exposure: 14.75 min. (10 frames @ 88.5 sec).
Gain: 152.
Date: 2019-06-22.
M17 / Swan Nebula / Sh-45
SHO narrow-band processing
Bortle 7 skies, backyard
from Wikipedia:
en.wikipedia.org/wiki/Omega_Nebula
The Omega Nebula is between 5,000 and 6,000 light-years from Earth and it spans some 15 light-years in diameter. The cloud of interstellar matter of which this nebula is a part is roughly 40 light-years in diameter and has a mass of 30,000 solar masses. The total mass of the Omega Nebula is an estimated 800 solar masses.
It is considered one of the brightest and most massive star-forming regions of our galaxy. Its local geometry is similar to the Orion Nebula except that it is viewed edge-on rather than face-on.
ω Cen, NGC 5139, or Caldwell 80
2022 Texas Star Party
Image Acquisition:
Rainbow Astro RST-135E
William Optics Fluorostar 91 w/0.8x reducer (435mm f.l.)
QHY 268C w/ZWO UV/IR cut filter
Eagle4s computer w/NINA and PHD2
Primaluce 60mm Guide Scope w/QHY 5L-II-M
Image Processing:
15x1min exposures
PixInsight
Press L for a better viewing experience
My photo portfolio -> (1) People Portrait | (2) Collections | (3) Events | (4) Themes | (5) Wallpaper | (6) Favorites
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Lors d'une sortie au parc Omega avec un tres bon ami et photographe hors-pair, Alain Tremblay (Beluga 7).
J'ai eu bien du plaisir durant cette sortie. Alain est un super de bon gars.
Vous pouvez visiter sa collection de photos a l'addresse suivante:
www.flickr.com/photos/45715717@N00/
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While out taking pictures at the Omega park with a very good friend and excellent photographer Alain Tremblay.
I had a lot of fun during this outing. Alain is a very good guy to be with.
You can see his photos collection at the following address:
NGC5139 - Aglomerado Globular Omega Centauri
Nome: Omega Centauri, NGC 5139
Tipo: Globular Cluster
Distância: 15.800 anos-luz
Diâmetro: 150 anos-luz
Magnitude Aparente: 3,9
Constelação: Centauro
Um aglomerado globular é uma coleção esférica de estrelas que orbita um núcleo galáctico como um satélite. Aglomerados globulares são fortemente ligados pela gravidade, o que lhes dá as suas formas esféricas. Este tipo de aglomerado é bastante comum. A sua formação continua sendo um fenômeno pouco compreendido. Ainda permanece incerto se as estrelas destes aglomerados formaram em uma simples geração ou através de múltiplas gerações em um período de várias centenas de milhares de anos.[1]
Omega Centauri (ω Cen), ou NGC 5139, é um aglomerado globular localizado na constelação do Centauro que foi primeiramente identificado como um objeto não-estelar por Edmond Halley em 1677. Localizado a uma distância de 15.800 anos-luz, é o maior aglomerado globular na Via Láctea com um diâmetro aproximado de 150 anos-luz. Estima-se que este aglomerado possua aproximadamente 10 milhôes de estrelas e uma massa total equivalente a 4 milhões de massas solares.[2]
Omega Centauri é tão diferente dos outros aglomerados globulares galácticos que suspeitam que ele tenha uma origem alternativa vinda de um núcleo de uma galáxia anã.[2]
É um objeto muito interessante que apresenta um tipo peculiar de estrelas, as Blue Stragglers, uma estrela da sequência principal de aglomerados abertos ou globulares que é mais luminosa e azul do que as estrelas da sequência principal do ponto de turn-off dos aglomerados.
Fontes:
[1] en.wikipedia.org/wiki/Globular_cluster
[2] en.wikipedia.org/wiki/Omega_Centauri
Registrei esta imagem em 10 de Abril de 2016 no Pólo Astronômico de Amparo - Amparo - São Paulo - Brasil.
Dados técnicos:
ISO 800, 2h20m de exposição (28 subs), darks (~100), flats (60) e bias (~200).
Equipamentos:
- Montagem Equatorial Orion Atlas EQ-G
- Telescópio GSO Ritchey-Chretien 8" F8
- Câmera Canon DSLR 500D modificada com filtro Astrodon
- Redutor focal Astro-Physics 67 CCDT
- Guiagem com câmera ASI120MM ZWO com OAG
- Filtro Astronomik CLS clip
Software
- Captura: BackyardEOS
- Processamento: PixInsight 1.8, eXcalibrator e Adobe Photoshop CS5
- Guiagem: PHD2
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NGC5139 - Globular Cluster Omega Centauri
Name: Omega Centauri, NGC5139
Type: Globular Cluster
Distance: 15,800 of light-years
Diameter: 150 light-years
Apparent magnitude: 3.9
Constellation: Centaurus
A globular cluster is a spherical collection of stars that orbits a galactic core as a satellite. Globular clusters are very tightly bound by gravity, which gives them their spherical shapes and relatively high stellar densities toward their centers. This type of cluster are fairly common. The formation of globular clusters remains a poorly understood phenomenon and it remains uncertain whether the stars in a globular cluster form in a single generation or are spawned across multiple generations over a period of several hundred million years.[1]
Omega Centauri (ω Cen), or NGC 5139, is a globular cluster in the constellation of Centaurus that was first identified as a non-stellar object by Edmond Halley in 1677. Located at a distance of 15.800 light-years, it is the largest globular cluster in the Milky Way at a diameter of roughly 150 light-years. It is estimated to contain approximately 10 million stars and a total mass equivalent to 4 million solar masses.[2]
Omega Centauri is so distinctive from the other galactic globular clusters that it is thought to have an alternate origin as the core remnant of a disrupted dwarf galaxy.[2]
It is an interesting object that shows a peculiar type of stars, the blue stragglers, a main-sequence star in an open or globular clusters that is more luminous and bluer than stars at the main-sequence turn-off point for the cluster.
Sources:
[1] en.wikipedia.org/wiki/Globular_cluster
[2] en.wikipedia.org/wiki/Omega_Centauri
I registered this picture at April, 10th 2016 in Astronomical Pole of Amparo - Amparo - São Paulo - Brazil.
Technical data:
ISO 800, 2h20m of exposition (28 subs), darks (~100), flats (60) and bias (~200).
Equipment:
- Equatorial Mount Orion Atlas EQ-G
- GSO Ritchey-Chretien Telescope 8" F8
- Canon DSLR 500D modded with Astrodon filter
- Focal reducer Astro-Physics 67 CCDT
- Guided with ASI120MM ZWO using OAG
- Astronomik CLS clip filter
Software
- Capture: BackyardEOS
- Processing: PixInsight 1.8, eXcalibrator and Adobe Photoshop CS5
- Guiding: PHD2
The Omega Nebula – aka M17 – is barely visible to the unaided eye on a dark, moonless night. To see it, it’s best to use binoculars or low-power magnification on a telescope. The Omega Nebula is very near another prominent nebula, known as M16 or the Eagle Nebula. M16 is the home nebula of the famous Pillars of Creation image. In the sky, M16 and M17 appear as two closely-knit patches of haze. They fit readily within the same binocular field of view. Both are found within the hazy starlit band of our Milky Way galaxy, as it crosses the sky on a northern summer evening. The Omega Nebula is between 5,000 and 6,000 light-years from Earth and it spans some 15 light-years in diameter. The cloud of interstellar matter of which this nebula is a part is roughly 40 light-years in diameter and has a mass of 30,000 solar masses. The total mass of the Omega Nebula is an estimated 800 solar masses. It is considered one of the brightest and most massive star-forming regions of our galaxy.
The Omega Nebula, also known as the Swan Nebula, Checkmark Nebula, and the Horseshoe Nebula is an H II region in the constellation Sagittarius. It was discovered by Philippe Loys de Chéseaux in 1745. Charles Messier catalogued it in 1764. It is located in the rich starfields of the Sagittarius area of the Milky Way.
Image Details:
- Imaging Scope: William Optics 61mm ZenithStar APO
- Imaging Camera: ZWO ASI183MC Color with ZWO Duo band filter
- Guiding Scope: William Optics 31mm Uniguide
- Guiding Camera: Orion Starshoot Auto Guider
- Acquisition Software: Sharpcap
- Guiding Software: PHD2
- Light Frames: 20*5 mins @ 100 Gain, Temp -10C
- Dark Frames: 20*3 mins
- Stacked in Deep Sky Stacker
- Processed in PixInsight, Adobe Lightroom and Topaz Denoise
One of my three Omegas. Others are "Speedmaster Professional" and "Seamaster Professional Chronometer".
I am all that you see,
I am all that you want me to be!
I am god, and so the antichrist
I'm blessed, yet damned
I'm fallen, yet resurrected
I'm all of nothing!
My vintage Omega Seamaster de Ville. This is about as old as me - bought by my Dad just before I was born.
For the "Guernsey Monthly competition - first theme for March is "letters of the alphabet"
Scanned lith print.
Rolleiflex 3.5C w/ Xenotar 75 mm/f3.5.
Feb 20, 2022.
Fomapan 100 in Rodinal 1+100, semistand 1 h.
Lith printed on Fomatone MG 131 and developed in two baths:
1. Moersch Easy Lith + OB.
2. Moersch Lith Omega 1+80
March 13, 2022.
Untoned.
PS borders.
Stroboscope.
I thought I would try and avoid meters and rules for this week’s Macro Mondays group’s theme measurement, mainly because I had done them before.
This is the device on my vinyl record turntable for making sure it is rotating at precisely the right speed. This is important because the pitch that the recorded music is played is directly proportional to the rotation rate of the record.
Old high-end turntables like this one had a direct drive motor on which the speed could be finely adjusted to correct any change.
The table’s stroboscope is a light of regularly fluctuating brightness shining onto the spinning plate. The fluctuations are caused by the mains alternating current which in the UK fluctuates at 50 cycles a second, though in America and some other countries with lower voltages the electricity fluctuates at 60 cycles to carry more power in compensation.
In the picture you can see four rings around the spinning table. The rings are all made as a string of black and white blocks a bit like Morse code.
In daylight all four would be equally blurred but in the light of the stroboscope you can see the third ring outwards is seen as black and white blocks. That’s because the lamp is only lighting the blocks when they are in one position, and is dim while they move on to the next position, taking the place of the block in front of it. Minor deviations from the target speed cause the blocks to move slowly around, and you can then adjust the motor speed until they still.
There are four rings, two for the two turntable speeds (for singles and LPs) for each of the two electricity alternating rates (50 and 60 cycles per second). A neon bulb is used because it fluctuates in brightness much more during the alternating current cycle than a hot filament would, which explains the orange colour. The bulb lights a plastic prism which directs the light down by inner reflection.
In physics omega is often used as the symbol for angular velocity (rotation speed) hence the title.
The image is just over two inches in total width, so within the group limits. The device is not interested in measuring the size of the deviation, just whether it exists and in which direction so that it can be eliminated.
Thank you for taking time to look. I hope you enjoy the image! Happy Macro Mondays :)
[Tripod mount; remote release; self-lit. The shutter speed was limited to show the blur.
A focus stack of eight images in Affinity Photo (not enough really for this aperture as you can see by the bands of softness in the turntable plinth surface; I should have used a smaller aperture).
A bit of tidying up from stacking artefacts around the prism edge.
A little tweaking in Curves LAB mode for colour and luminosity.
Finally sharpened using Unsharp Mask.
Yep, a dark vignette would be entirely pointless (though I was tempted!) :) ]
Sunset over the Laguna Madre, showing the inferior mirage effect. This is the Omega stage. I've seen this several times but never knew the actual reasons behind it. Here is a link: mintaka.sdsu.edu/GF/explain/simulations/inf-mir/Kaplan_ph...
South Padre Island, Texas.