esa-hubble-picture-of-cerebra/24__/2444/DATASET.json
2025-10-01 15:13:21 +02:00

225 lines
9.7 KiB
JSON
Raw Permalink Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

{
"EXIF": {
"SourceFile": "24__/2444/potw2444a.jpg",
"ExifTool:ExifToolVersion": 12,
"File:FileName": "potw2444a.jpg",
"File:Directory": "24__/2444",
"File:FileSize": 5332522,
"File:FileModifyDate": "2024:10:29 10:28:38+01:00",
"File:FileAccessDate": "2024:10:29 10:28:38+01:00",
"File:FileInodeChangeDate": "2024:10:29 10:28:38+01:00",
"File:FilePermissions": 100444,
"File:FileType": "JPEG",
"File:FileTypeExtension": "JPG",
"File:MIMEType": "image/jpeg",
"File:ExifByteOrder": "MM",
"File:CurrentIPTCDigest": "02ffd716ed1304caaf4a8ee90e392842",
"File:ImageWidth": 3707,
"File:ImageHeight": 4068,
"File:EncodingProcess": 0,
"File:BitsPerSample": 8,
"File:ColorComponents": 3,
"File:YCbCrSubSampling": "1 1",
"JFIF:JFIFVersion": "1 1",
"JFIF:ResolutionUnit": 1,
"JFIF:XResolution": 72,
"JFIF:YResolution": 72,
"EXIF:ImageDescription": "This image from the NASA/ESA Hubble Space Telescope unbarred spiral galaxy roughly 51 million light-years away from Earth in the constellation Coma Berenices. You can see an old image of NGC 4414 that features Hubble data from 1995 and 1999 here, which was captured as one of the telescopes primary missions to determine the distance to galaxies. This was achieved as part of an ongoing research effort to study Cepheid variable stars. Cepheids are a special type of variable star with very stable and predictable brightness variations. The period of these variations depends on physical properties of the stars such as their mass and true brightness. This means that astronomers, just by looking at the variability of their light, can find out about the Cepheids' physical nature, which then can be used very effectively to determine their distance. For this reason cosmologists call Cepheids 'standard candles'. Astronomers have used Hubble to observe Cepheids, like those that reside in NGC 4414, with extraordinary results. The Cepheids have then been used as stepping-stones to make distance measurements for supernovae, which have, in turn, given a measure for the scale of the Universe. Today we know the age of the Universe to a much higher precision than before Hubble: around 13.7 billion years. [Image description: A large spiral galaxy is seen tilted diagonally. The arms of the galaxys disc are speckled with glowing patches; some are blue in colour, others are pink, showing gas illuminated by new stars. A faint glow surrounds the galaxy, which lies on a dark, nearly empty background. The galaxy's centre glows in white.] Links Image B (closeup of NGC 4414's supernovae) ",
"XMP:XMPToolkit": "Exempi + XMP Core 5.6.0",
"XMP:Source": "ESA/Hubble",
"XMP:Credit": "ESA/Hubble & NASA, O. Graur, S. W. Jha, A. Filippenko ",
"XMP:DateCreated": "2024:10:28 06:00:00",
"XMP:ReferenceURL": "https://esahubble.org/images/potw2444a/",
"XMP:Id": "potw2444a",
"XMP:Publisher": "ESA/Hubble",
"XMP:PublisherID": "esahubble",
"XMP:ResourceID": "potw2444a",
"XMP:ResourceURL": "http://esahubble.org/media/archives/images/original/potw2444a.tif",
"XMP:MetadataDate": "2024:10:27 18:27:09.455469",
"XMP:MetadataVersion": 1,
"XMP:Type": "Observation",
"XMP:SpatialCoordinateFrame": "ICRS",
"XMP:SpatialEquinox": "J2000",
"XMP:SpatialRotation": -204,
"XMP:SpatialCoordsystemProjection": "TAN",
"XMP:SpatialQuality": "Full",
"XMP:Facility": [
"Hubble Space Telescope",
"Hubble Space Telescope",
"Hubble Space Telescope",
"Hubble Space Telescope",
"Hubble Space Telescope",
"Hubble Space Telescope",
"Hubble Space Telescope",
"Hubble Space Telescope",
"Hubble Space Telescope"
],
"XMP:Instrument": [
"WFC3",
"WFC3",
"WFC3",
"WFC3",
"WFC3",
"WFC3",
"WFC3",
"WFC3",
"WFC3"
],
"XMP:SpectralColorAssignment": [
"Blue",
"Green",
"Yellow",
"Red",
"Red",
"Red",
"Red",
"Red",
"Purple"
],
"XMP:SpectralBand": [
"Optical",
"Optical",
"Optical",
"Optical",
"Optical",
"Infrared",
"Infrared",
"Infrared",
"Optical"
],
"XMP:SpectralBandpass": [
"B",
"V",
"r",
"I",
"z",
"Y",
"J",
"H",
"U"
],
"XMP:SpectralCentralWavelength": [
438,
555,
625,
814,
986,
1050,
1250,
1600,
336
],
"XMP:DatasetID": [
"None",
"None",
"None",
"None",
"None",
"None",
"None",
"None",
"None"
],
"XMP:SpectralNotes": "",
"XMP:SpatialReferenceValue": [
186.60986030976,
31.223449676879387
],
"XMP:SpatialReferenceDimension": [
3707.0,
4068.0
],
"XMP:SpatialReferencePixel": [
1853.5,
2034.0
],
"XMP:SpatialScale": [
-1.1025026478963484e-05,
1.1025026478963484e-05
],
"XMP:SpatialNotes": "",
"XMP:CreatorWorkURL": "https://esahubble.org",
"XMP:CreatorAddress": "ESA Office, Space Telescope Science Institute, 3700 San Martin Dr",
"XMP:CreatorCity": "Baltimore",
"XMP:CreatorRegion": "MD",
"XMP:CreatorCountry": "United States",
"XMP:UsageTerms": "Creative Commons Attribution 4.0 International License",
"XMP:Title": "Revisiting an old beauty",
"XMP:Subject": "NGC 4414",
"Photoshop:XResolution": 72,
"Photoshop:DisplayedUnitsX": 1,
"Photoshop:YResolution": 72,
"Photoshop:DisplayedUnitsY": 1,
"Photoshop:PhotoshopThumbnail": "(Binary data 4167 bytes, use -b option to extract)",
"Photoshop:GlobalAngle": 4294967206,
"Photoshop:GlobalAltitude": 30,
"Photoshop:SlicesGroupName": "A-NGC4414_WFC3_19Aug2024_20Sep2024_AH-CC2-crop1",
"Photoshop:NumSlices": 1,
"Photoshop:URL_List": [],
"Photoshop:HasRealMergedData": 1,
"Photoshop:WriterName": "Adobe Photoshop",
"Photoshop:ReaderName": "Adobe Photoshop 2024",
"Photoshop:IPTCDigest": "02ffd716ed1304caaf4a8ee90e392842",
"Photoshop:PrintStyle": 0,
"Photoshop:PrintPosition": "0 0",
"Photoshop:PrintScale": 1,
"Photoshop:PixelAspectRatio": 1,
"IPTC:CodedCharacterSet": "\u001b%G",
"IPTC:ApplicationRecordVersion": 4,
"IPTC:ObjectName": "Revisiting an old beauty",
"IPTC:Keywords": "NGC 4414",
"IPTC:DateCreated": "2024:10:28",
"IPTC:TimeCreated": "06:00:00",
"IPTC:Credit": "ESA/Hubble & NASA, O. Graur, S. ",
"IPTC:Source": "ESA/Hubble",
"ICC_Profile:ProfileCMMType": "Lino",
"ICC_Profile:ProfileVersion": 528,
"ICC_Profile:ProfileClass": "mntr",
"ICC_Profile:ColorSpaceData": "RGB ",
"ICC_Profile:ProfileConnectionSpace": "XYZ ",
"ICC_Profile:ProfileDateTime": "1998:02:09 06:49:00",
"ICC_Profile:ProfileFileSignature": "acsp",
"ICC_Profile:PrimaryPlatform": "MSFT",
"ICC_Profile:CMMFlags": 0,
"ICC_Profile:DeviceManufacturer": "IEC ",
"ICC_Profile:DeviceModel": "sRGB",
"ICC_Profile:DeviceAttributes": "0 0",
"ICC_Profile:RenderingIntent": 0,
"ICC_Profile:ConnectionSpaceIlluminant": "0.9642 1 0.82491",
"ICC_Profile:ProfileCreator": "HP ",
"ICC_Profile:ProfileID": "0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0",
"ICC_Profile:ProfileCopyright": "Copyright (c) 1998 Hewlett-Packard Company",
"ICC_Profile:ProfileDescription": "sRGB IEC61966-2.1",
"ICC_Profile:MediaWhitePoint": "0.95045 1 1.08905",
"ICC_Profile:MediaBlackPoint": "0 0 0",
"ICC_Profile:RedMatrixColumn": "0.43607 0.22249 0.01392",
"ICC_Profile:GreenMatrixColumn": "0.38515 0.71687 0.09708",
"ICC_Profile:BlueMatrixColumn": "0.14307 0.06061 0.7141",
"ICC_Profile:DeviceMfgDesc": "IEC http://www.iec.ch",
"ICC_Profile:DeviceModelDesc": "IEC 61966-2.1 Default RGB colour space - sRGB",
"ICC_Profile:ViewingCondDesc": "Reference Viewing Condition in IEC61966-2.1",
"ICC_Profile:ViewingCondIlluminant": "19.6445 20.3718 16.8089",
"ICC_Profile:ViewingCondSurround": "3.92889 4.07439 3.36179",
"ICC_Profile:ViewingCondIlluminantType": 1,
"ICC_Profile:Luminance": "76.03647 80 87.12462",
"ICC_Profile:MeasurementObserver": 1,
"ICC_Profile:MeasurementBacking": "0 0 0",
"ICC_Profile:MeasurementGeometry": 0,
"ICC_Profile:MeasurementFlare": 0,
"ICC_Profile:MeasurementIlluminant": 2,
"ICC_Profile:Technology": "CRT ",
"ICC_Profile:RedTRC": "(Binary data 2060 bytes, use -b option to extract)",
"ICC_Profile:GreenTRC": "(Binary data 2060 bytes, use -b option to extract)",
"ICC_Profile:BlueTRC": "(Binary data 2060 bytes, use -b option to extract)",
"Composite:ImageSize": "3707 4068",
"Composite:Megapixels": 15,
"Composite:DateTimeCreated": "2024:10:28 06:00:00",
"Composite:DateTimeOriginal": "2024:10:28 06:00:00"
}
}