IC 348
Also Known as: Collinder 41, IC 1985
Object Type: Reflection Nebula and Open Cluster
Constellation: Perseus
Distance from Earth: 1,028 light years
Apparent Magnitude: 7.3
Coordinates: RA 03H 44M 34S DEC 32 deg 09.8 min 0 sec
Actual Size: 15,000 light year in diameter
Apparent Dimensions: 20 arc-minutes
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Environmental Data
Date: November 28, 2022 Start Time: 6:04PM End Time: 2:18AM SQM: 19.66
Moon Age: 5.5 days Moonset: 9:17PM Moon Illumination: 30.8%
Temperature: 47 degees F Humidity: 68% Dew Point: 37 degreees F
Location: Westport, Massachusetts 02790 Sky Condition: Clear
Comment: PHD2 calibration good. Installed wind shield to West wall of observatory.
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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 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 1.8 Platesolve: Good 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: 1-2 sec Binning: 1x1 Tracking Result: .5 arc-seconds RMS
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Images Taken
Number of light frames: 217 Duration: 2 minutes Gain: 100
Camera Temperature: -10 degrees C Binning: 1x1 F-Stop: 7.0
Total Integration Time: 7.23 hours
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Number of flat frames: 50 Duration: 0.15 seconds Gain: 100
Camera Temperature: -10 degrees C Binning: 1x1 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 (from library) Duration: 2 minutes Gain: 100
Camera Temperature: -10 degrees C Binning: 1x1 F-Stop: 7.0
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Number of Bias frames: 50 (from library) Duration: 0.001 seconds Gain: 100
Camera Temperature: -10 degrees C Binning: 1x1 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, SpectroPhotometricColorCalibration, BlurXTerminator, NoiseXterminator
Non-Linear: GeneralizedHyperbolicStretch script, CurvesTransformation, MultiscaleLinearTransform for sharpening.
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Notes:
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