page_title: Audouin Dollfus
section_title: Aerospace and Ballooning Pioneer
hierarchical_section_title: Audouin Dollfus / Aerospace and Ballooning Pioneer
caption_attribution_description: Français&#160;: Nacelle du ballon stratosphérique utilisé par l'astronome francais Audouin Dollfus pour effectuer des observations astronomiques le 22 avril 1959 à 14000 mètres d'altitude. Musée de l'Air, Le Bourget, France.English: Pressurized gondola used by the french astronom Audouin Dollfus the 22 april 1959 to do astronomic observations at 14000 meters. Musée de l'Air, Le Bourget, France.
context_page_description: Audouin Charles Dollfus was a French astronomer and aeronaut, specialist in studies of the Solar System and discoverer of Janus, a moon of Saturn.
context_section_description: With his father, the aeronautical pioneer Charles Dollfus, he holds
  several world records in ballooning, including the first stratospheric flight
  in France.  He was the first to carry out astronomical observations from a
  stratospheric balloon, in particular to study Mars in a detailed way.
caption: basket of the balloon used in 1959 by Audouin Dollfuss to make astronomical observations at 14000 meters of altitude.
exif: {"Image Make": "NIKON CORPORATION", "Image Model": "NIKON D5100", "Image XResolution": "300", "Image YResolution": "300", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "Ver.1.00", "Image DateTime": "2012:04:03 23:04:55", "Image Artist": "Picasa", "Image YCbCrPositioning": "Co-sited", "Image ExifOffset": "218", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "3536", "Thumbnail JPEGInterchangeFormatLength": "4793", "EXIF ExposureTime": "1/4", "EXIF FNumber": "8", "EXIF ExposureProgram": "Shutter Priority", "EXIF ISOSpeedRatings": "400", "EXIF SensitivityType": "Recommended Exposure Index", "EXIF ExifVersion": "0230", "EXIF DateTimeOriginal": "2011:12:11 14:21:41", "EXIF DateTimeDigitized": "2011:12:11 14:21:41", "EXIF ComponentsConfiguration": "YCbCr", "EXIF CompressedBitsPerPixel": "2", "EXIF ExposureBiasValue": "-1/3", "EXIF MaxApertureValue": "9/2", "EXIF MeteringMode": "Pattern", "EXIF LightSource": "Unknown", "EXIF Flash": "Flash did not fire", "EXIF FocalLength": "42", "EXIF SubSecTime": "10", "EXIF SubSecTimeOriginal": "10", "EXIF SubSecTimeDigitized": "10", "EXIF FlashPixVersion": "0100", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "2730", "EXIF ExifImageLength": "4389", "Interoperability InteroperabilityIndex": "R98", "Interoperability InteroperabilityVersion": "[48, 49, 48, 48]", "Interoperability RelatedImageWidth": "4928", "Interoperability RelatedImageLength": "3264", "EXIF InteroperabilityOffset": "3388", "EXIF SensingMethod": "One-chip color area", "EXIF FileSource": "Digital Camera", "EXIF SceneType": "Directly Photographed", "EXIF CVAPattern": "[0, 2, 0, 2, 0, 1, 1, 2]", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Auto Exposure", "EXIF WhiteBalance": "Auto", "EXIF DigitalZoomRatio": "1", "EXIF FocalLengthIn35mmFilm": "63", "EXIF SceneCaptureType": "Standard", "EXIF GainControl": "Low gain up", "EXIF Contrast": "Normal", "EXIF Saturation": "Normal", "EXIF Sharpness": "Normal", "EXIF SubjectDistanceRange": "0", "EXIF ImageUniqueID": "a85669d2f5b583a4964a8c1e59091954"}