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Astrobin Image Of The Day 9th January 2020
Amateur Astronomy Image Of The Day 25th January 2020 AAPOD2
Published in Universo Magico 27 March 2020
EGB 4 (a nebula discovered by Ellis, Grayson, & Bond in 1984) is NOT a comet, despite it's comet-like appearance. It is an emission nebula surrounding a catacylismic binary star system called BZ Cam in the constellation of Camelopardis.
It has an unusual bow-shock structure as BZ Cam (with it's associated wind) moves through the interstellar medium, similar to the bow wave in front of a ship that is moving through water.
BZ Cam is believed to be a white dwarf star that is accreting mass from an accompanying main-sequence star of 0.3-0.4 solar masses.
It is around 2,500 light years away, and has a space velocity of 125 km/second.
I can only find one previous image of EGB 4 online, a NASA APOD from 2000, so I believe this could be the first amateur image and the first colour image.
Astrodon Blue: 15x300"
Astrodon Green: 15x300"
Astrodon Lum: 20x600"
Astrodon Red: 15x300"
Astrodon OIII: 25x1800s bin 2x2
Astrodon Ha: 56x1800s bin 2x2
Total Integration: 48 hours
Captured on my dual rig in Spain.
Scopes: APM TMB LZOS 152 (6" aperture 1200mm focal length)
Cameras: QSI6120wsg8
Mount: 10Micron GM2000 HPS
References:
apod.nasa.gov/apod/ap001128.html
THE ASTRONOMICAL JOURNAL, 115:286-295, 1998 January © 1998. The American Astronomical Society.
aanda.org/articles/aa/full/2001/36/aa1385/aa1385.right.html
This week in 2007, the space shuttle Atlantis, mission STS-117, landed at Edwards Air Force Base following the completion of a successful 14-day mission to the International Space Station. The primary mission objective was to deliver the second and third starboard truss segments, S3 and S4, and another pair of solar arrays to the station. Today, the Payload Operations Integration Center at NASA's Marshall Space Flight Center serves as "science central" for the space station, working 24/7, 365 days a year in support of the orbiting laboratory's scientific experiments. The NASA History Program is responsible for generating, disseminating, and preserving NASA’s remarkable history and providing a comprehensive understanding of the institutional, cultural, social, political, economic, technological and scientific aspects of NASA’s activities in aeronautics and space. For more pictures like this one and to connect to NASA’s history, visit the Marshall History Program’s webpage.
Image credit: NASA
''Immortals are never alien to one another.''
— Homer (The Odyssey)
Press L to view in Lightbox
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NO GIFS AND ANIMATED ICONS, PLEASE!
Die Geschichte von Kreta ist sehr bewegt
-Minoische Zeit etwa 3000 v. Chr. bis 13.Jh v Chr
-archaische Zeitalter : 6. bis zum 4. Jahrhundert
-Byzantinisches Reich (395–1204)und Sarazenenherrschaft (826–961)
- Venezianische Herrschaft (1204–1669)
- Osmanische Herrschaft (1669–1897)
- De-facto-Unabhängigkeit (1898–1913)
- Vereinigung mit Griechenland (seit 1913)
- Minoan-Mycenaean Crete(3000-1300 BC)
- Classical, Hellenistic, Roman, Byzantine and Arab Crete(395-1204)
- Venetian Crete (1205–1669)
-Ottoman Crete (1669–1898)
- Independence(1898-1913)
-Crete was unified with mainland Greece(1913)
(Wikipedia)
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Im Straßenbild sieht man noch Minarette und Moscheen , aber die die meisten wurden einem anderen Zweck zugeführt. Geschichte kann man aber nicht ausradieren und ein friedlicher, harmonischer Mix aus Religionen, Architekturen, Kulturen kann doch nur bereichern.
There are still minarets and mosques in the street, but most of them have been brought to a different purpose. But you can not eradicate history and a peaceful, harmonious mix of religions, architecture, cultures can only enrich
...this is one of my oldest images...but i relly love it...i never seen a scene like this before and after in berlin...she was in the park with her husband and kids...they played basketball...suddlendy she went up and through a few balls...luck that i have my camera with me...
...i hope some more people view and like it...
@{-->-- ... thank you all very much my friends...:)))
Leica MP
Leica Elmarit 28mm f/2.8 III
Kodak T-Max 100
Ars Imago FD 1+39
6 min 20°C
Scan from negative film
A new tech term for ancient technology. This is a granary near the Moon House Ruin in the Cedar Mesa area of Utah. I liked how the walls of the granary grew out of the cliffs as an extension of the natural rock.
I am taking a different turn in photography.
I love incorporating art with photographs so now I play with my iPad and Laminar software.
Thus allows me to layer my bits and pieces hopefully into a more interesting landscape.
Barnard 252, 12 hours and 50 minutes of integration in LRGB with Planewave CDK24 610/3962 f 6/5 telescope, CCD FLI PL 9000 camera (spec sheet), are 77 shots of which in L 25x600 seconds, in R 22x600 seconds, in G 13x600 seconds and in b 17x600 seconds, processing with Pixinsight and Photoshop. All data and shots were captured with Telescope Live
de la nature, la poésie, la sensualité... tout qui me parle, tout que j'ai envie d'exprimer.
J'avais passé des années en faisant de collages de papier, de peinture et de photos. Maintenant, je reviens sur mes racines artistiques et j'ai commencé à faire une nouvelle série de superpositions. Voici la première.
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of nature, of poetry, of sensuality... all that speaks to me, all that I desire to express.
I had spent years making collages of paper, paint, photographs. Now I am revisiting my artistic roots, and I have started a new series of photo composites. Here is the first.
IC 1396, 26 hours and 25 minutes of integration in SHO with Takahashi FSQ-106EDX4 106/382 telescope, f 3/6, QHY 600M Pro camera, are 317 shots of which in Ha 114x300 seconds, in OIII 101x300 seconds and in SII 102x300 seconds, processing with Pixinsight and Photoshop. All data and shots were captured with Telescope Live. IC 1396 is a very sparse open cluster associated with a large diffuse nebula, visible in the northern constellation Cepheus; it is located in a stretch of the Milky Way partially obscured by dense banks of dark nebulae, in a galactic region rich in neutral dust and gas with associated young and hot blue stars. The gases of the nebula complex of IC 1396 are excited by the stellar wind of the blue giant HD 206267, belonging to the Cepheus OB2 association. It seems that the expansion of this H II region created a large ring of molecular gas with a radius of about 12 parsecs, over a period of at least 3 million years. The ring structure extends for about 3° and is surrounded by a large number of dark blood cells, inside which the formation of new stars probably takes place due to compression by ionization, the shock wave front of stellar winds and radiation pressure; The largest blood cells are located on the northwestern side of the nebula region. In the eighties, 32 globules were identified, which received a numerical designation from 1 to 32 with the prefix GRS (Globules of Radial Systems); four radial systems of globules have been identified near IC 1396, while one of these is centered exactly on the nebula. Among the blood cells there is also the famous structure known as the Elephant trunk (see B 142). In the infrared, on the other hand, research has been conducted for the localization of young stellar objects associated with blood cells; It was thus discovered that only six sources associated with globules have a structure and luminosity such that they could have been caused by external heating, while most of these would not be related to star formation phenomena. In 2005, through a near-infrared study, 25 blood cells were identified, of which four had not been reported in the SIMBAD catalog; For all but four blood cells, it was possible to determine the mass, while it was not possible to measure the diameter for seven of them. Five globules contain a rich population of objects with reddened light, probably stars in formation; These five globules have the highest extinction rate, which would suggest a relationship between the intensity of star formation activity and the mass of the globules themselves. In blood cells with the smallest mass, star formation is often believed to be influenced by the radiation pressure of a bright star nearby; in a study conducted on one of these, illuminated by the bright blue giant HD 206267, a link with the distance of this star was highlighted, suggesting that evaporation due to photoionization affects the distribution of the mass of the blood cell around the blue giant. The influence of the star is given by the compression of the gases by the radiation pressure.
Almost 8 hours of integration taken at the Denver Astronomical Society's dark site in Deer Trail, CO. ASI1600MM Pro, skywatcher esprit 80mm, and ZWO LRGB filters.
Spoonbill between Greylag Geese and Canadian Geese in the nature reserve Geltinger Birk, Baltic Sea
Löffler zwischen Graugänsen und Kanadagänsen im Naturschutzgebiet Geltinger Birk, Ostsee
Three moving camera (walking) images were registered on a relatively stationary subject then stacked.
Integration signal to noise reduction (SNR) reinforces locally similar elements of the immobile subject, sharpening them, while weakening dissimilar background elements (e.g. elements out of register).
See all Integration SNR images sorted by Interestingness
Composite images with a moving subject reference frame