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Data Item
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Description
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Object (User)
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User's preferred object designation. This may or may not be the same as Object. See Designations & the Lookup Engine
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Object
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System's preferred object designation. See Designations & the Lookup Engine
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Common Name
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Commonly used name by which the object is known. You may see the list of all common names by which the object is known by viewing the context menu.
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Cross Ref
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Cross reference to other catalogs. You may see the list of all cross references by which the object is known by viewing the context menu.
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Date/Time
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Date and time of observation.
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LT/UT
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LT = Date/Time is local time, UT = Date/Time is universal time
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Location
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Name of location from which observation was made.
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Observer
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First and last name of observer.
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Loc Method
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Method used to locate the object, one of: Unspecified, Manual, GoTo or DSC (Digital Setting Circles.)
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Rating
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A numerical ranking (0 to 10) assigned to the observation. You may choose how the number is interpreted (i.e., whether 10 is good or bad.)
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Temp
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Air temperature at the time and location of the observation in units specified in Preferences.
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Humidity
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Relative humidity at the time and location of the observation.
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Projects
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Observing project(s) to which the observation belongs. If the observation belongs to multiple projects, the project name is followed by an ellipsis (...). You may see the list of all projects that the observations belongs to by viewing the context menu.
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Wind
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Wind speed and direction at the time and location of the observation in units specified in Preferences.
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Pressure
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Atmospheric pressure at the time and location of the observation in units specified in Preferences.
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Transparency
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A numerical rating of atmospheric transparency (0 to 10) at the time and location of the observation. You may choose how the number is interpreted (i.e., whether 10 is good or bad.)
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PM 2.5
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PM2.5 (2.5 micron particulate matter) for the time and location of the observation.
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AOD
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Aerosol Optical Depth for the time and location of the observation.
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Seeing
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A numerical rating of seeing (0 to 10) at the time and location of the observation. You may choose how the number is interpreted (i.e., whether 10 is good or bad.)
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Antoniadi
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Antoniadi seeing scale for the time and location of the observation.
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Pickering
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Pickering seeing scale for the time and location of the observation.
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Arcsec
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Either the full width at half maximum seeing measurement or a visual estimate made by splitting double stars for the time and locatio of the observation.
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Darkness
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A numerical rating of transparency (0 to 10) for the time and location of the observation.. You may choose how the number is interpreted (i.e., whether 10 is good or bad.)
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Bortle
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Bortle darkness scale for the time and location of the observation.
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NELM
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Naked-eye limiting stellar magnitude estimate for the time and location of the observation.
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Mag/Sq Arcsec
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Darkness measurement in magnitude per square arcsecond for the time and location of the observation, perhaps made with a Sky Quality Meter.
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Instrument
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Name of instrument with which the observation was made
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Total Mag or Magnification
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Working magnification of the equipment used for the (visual) observation
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Barlow/Cmp
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Name of barlow or compressor with which the observation was made
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Eyepiece
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Name of eyepiece with which the observation was made
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True Field
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True field of view of the equipment used for the (visual) observation in degrees
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Filter
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Name of the optical filter with which the observation was made
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Camera
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Name of camera with which the observation was made
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Field of View or FOV
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Field of view of the equipment used for the (photographic) observation in either degrees or arcminutes. Eyepiece projection is not supported with this calculation.
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Image Scale
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Image scale of the equipment used for the (photographic) observation in arcseconds per pixel (CCD Camera only). Eyepiece projection is not supported with this calculation.
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Image Attached
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Whether an image is attached to this observation - Brief Observing Log Report only.
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Media Attached
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Whether a media file is attached to this observation - Brief Observing Log Report only.
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Image
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Thumbnail image if an image is attached to this observation - Detailed Observing Log Report only.
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Notes
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Description of the observation.
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