File:Equatorial Milky Way (ann22042aa).tiff
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[edit]DescriptionEquatorial Milky Way (ann22042aa).tiff |
English: Image title: Equatorial Milky Way Author: Giorgia Hofer Country: ItalyTaken in Bromo, Java Island, Indonesia, in March 2016, this image captures regions of the southern Milky Way and, at its left edge, the two planets Mars and Saturn. Mars appears orange and is similar in colour to the star Antares, whose Greek name — anti Ares — references this. Saturn is a little bit fainter than Mars, but clearly visible among the stars of Ophiuchus, above the Pipe Nebula and forming an isosceles triangle with Mars and Antares.Mars is on the top and Saturn is vertically below. Visible to the naked eye, both planets have significance in many cultures around the world. In Roman mythology Mars is the god of war and fertility, and Saturn the god of sowing and agriculture. Its Greek equivalent, the god Kronos, is also considered the regent of completion. Indigenous Australians, including the Kamilaroi and Wailan people, associate Saturn with “wunygal”, a small bird. Mars is called Iherm-penh (something burnt in flames) by the Anmatyerre people of the Central Desert, while the Kokatha people of the Western Desert associate Mars and the star Anatres with the red-tailed black cockatoo (Kogolongo).In the middle of this photograph, the most famous southern constellations are clearly recognisable: the Southern Cross (Crux), the pointer stars, Alpha and Beta Centauri, the dark Coalsack Nebula and the red Eta Carina Nebula, which is not visible to the unaided eye but is prominent in modern photographs. In the 19th century, the star eta Carinae had been the second-brightest star in the sky for some time, but since it varies irregularly, it has hardly been recognisable in recent decades, and its future visibility is unpredictable.Triangulum Australe is visible between the pointer stars and the Scorpion, and in the constellation of Centaurus, the bright globular star cluster Omega Centauri is clearly displayed. It was considered a “nebulous star” since antiquity and, thus, was listed in star catalogues for at least 2000 years. Only within the last century did astronomers discover that globular star clusters are in the halo of our galaxy and that this one consists of roughly 10 million stars.The dark regions in the Milky Way, which are cool, dense clouds of dust and gas, form the head and body of the Celestial Emu Tchingal. Together with the Southern Cross and the pointer stars, they appear in the Dreamtime stories of many Indigenous Australians. One story associated with the Djab Wurrung and the Jardwadjali people is part of a Dreamtime Story involving Tchingal, the Bram-bram-bult brothers (the pointer stars), their mother Druk (Delta Crux), and Bunya the hunter, who gets transformed into a possum (Gacrux, the red star at the top of the Southern Cross).Also see image in Zenodo: https://doi.org/10.5281/zenodo.7425563 |
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Date | 15 December 2022 (upload date) | ||
Source |
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Author | Giorgia Hofer/IAU OAE | ||
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Licensing
[edit]This media was created by the International Astronomical Union (IAU).
Their website states: "The images, videos and web texts on iau.org are released under the Creative Commons Attribution 4.0 International License and may on a non-exclusive basis be reproduced without fee, on the conditions outlined below." Conditions:
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This file is licensed under the Creative Commons Attribution 4.0 International license.
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current | 23:00, 27 June 2023 | 2,000 × 830 (3.52 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://www.iau.org/static/archives/images/original/ann22042aa.tif via Commons:Spacemedia |
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Metadata
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Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON D750 |
Author | GIORGIAHOFER1982 |
Copyright holder | GIORGIAHOFER1982 |
Exposure time | 20/1 sec (20) |
F-number | f/2.5 |
ISO speed rating | 6,400 |
Date and time of data generation | 20:21, 13 March 2016 |
Lens focal length | 20 mm |
User comments | Kolor stitching | 7 pictures | Size: 12012 x 4987 | Lens: Standard | RMS: 2.20 | FOV: 183.54 x 76.20 ~ 21.99 | Projection: Spherical | Color: LDR | |
Width | 2,000 px |
Height | 830 px |
Bits per component |
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Compression scheme | LZW |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Number of rows per strip | 43 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop 24.0 (Windows) |
File change date and time | 09:28, 1 December 2022 |
Exposure Program | Manual |
Exif version | 2.3 |
Date and time of digitizing | 20:21, 13 March 2016 |
APEX shutter speed | −4.321928 |
APEX aperture | 2.643856 |
APEX exposure bias | 0 |
Maximum land aperture | 1.6 APEX (f/1.74) |
Metering mode | Center weighted average |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
Color space | Uncalibrated |
Focal plane X resolution | 1,675.0149841309 |
Focal plane Y resolution | 1,675.0149841309 |
Focal plane resolution unit | 3 |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Manual white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 20 mm |
Scene capture type | Standard |
Scene control | High gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |