NGC 6826
Common Name: Blinking Planetary
Also Known as: Caldwell 15
Object Type: Planetary Nebula
Constellation: Cygnus
Distance from Earth: 2,200 light years
Apparent Magnitude: 8.8
Coordinates: RA 19H 44M 48.2S DEC 50 deg 31 min 30.3 sec
Actual Size: 0.5 light years in diameter.
Apparent Dimensions: 27 arc-seconds x 24 arc-seconds
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Environmental Data
Date: September 15, 2022 Start Time: 8:22PM End Time: 1:55AM SQM: 19.29
Moon Age: 19.8 days Moonrise: 9:41PM Moon Illumination: 74.1%
Temperature: 61 degrees F Humidity: 57% Dew Point: 46 degrees F
Location: Westport, Massachusetts 02790 Sky Condition: Clear
Comment: PHD2 calibration good.
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Imaging Scope Data
Mount: iOptron CEM120 Camera: ZWO ASI2600 OSC Focuser: Optec QuickSync FT20
Telescope: Celestron 11 inch SCT Edge Focal Length: 1960mm
Focal Reducer/Field Flattener: 0.7 focal reducer Filter: None
Rotator: Pegasus Falcon rotator Power Control: Pegasus Ultimate Powerbox V2 Dew Heater: Kendrick dew strip
Imaging Software
Mount: iOptron Commander Focuser: Optec FocusLynx Commander
Imaging: Sequence Generator Pro Platesolve: ASTAP Rotator/Control: Pegasus Unity Platform
Imaging Status
Imaging Software: Sequence generated Focus HFR 2.82 Platesolve: Success on 3rd attempt
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Guide Scope Data
Telescope: Stellarvue SVX130 refractor Camera: ZWO ASI290 Focuser: Optec DirectSync SV35
Dew Heater: Kendrick dew strip Software: PHD2 Exposure: 1 sec Binning: 1x1 Tracking Result: 0.8 arc-seconds RMS
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Images Taken
Number of light frames: 150 Duration: 2 minutes Gain: 100
Camera Temperature: -10 degrees C Binning: 2x2 F-Stop: 7.0
Total Integration Time: 5 hours
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Number of flat frames: 50 Duration: 0.15 Gain: 100
Camera Temperature: -10 degrees C Binning: 2x2 F-Stop: 7.0
Flat Field Illumination: All-Pro 'Spike-a-Flat Field standard' illuminated panel
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Number of Dark frames: 50 Duration: 2 minutes Gain: 100
Camera Temperature: -10 degrees C Binning: 2x2 F-Stop: 7.0
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Number of Bias frames: 50 Duration: 0.001 seconds Gain: 100
Camera Temperature: -10 degrees C Binning: 2x2 F-Stop: 7.0
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Imaging Processing
Imaging Processing Software: PixInsight
Processes utilized: Linear - calibration/integration: Flats ImageCalibration with Master Bias, Flat ImageIntegration, Images ImageCalibration with Flat Master & Dark Master, Debayer, SubFrameSelector, StarAlign, ImageIntegration
Linear - Background extraction, Color correction, deconvolution, noise reduction: DynamicBackgroundExtraction, ImageSolve, SpectroPhotometricColorCalibration, BlurXTerminator, NoiseXterminator
Non-Linear: GeneralizedHyperbolicStretch script, MultiscaleLinearTransform for sharpening, CurvesTransformation, StarReduction script, DynamicCrop
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Notes: Moon rose during imaging making the sky bright.
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