Messier 105 (M105)
Also Known as: NGC 3379
Object Type: Elliptical Galaxy
Constellation: Leo
Distance from Earth: 32 million Light years
Apparent Magnitude: 10.2
Coordinates: RA 10H 47M 49.6S DEC 12deg 34min 54sec
Actual Size: 55,000 light years in diameter
Apparent Dimensions: 5.4 arc-minutes x 4.8 arc-minutes
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Environmental Data
Date: April 20, 2022 Start Time: 8:31PM End Time: 1:43AM SQM: 15.67
Moon Age: 18.7 days Moonculmination: 3:55AM Moon Illumination: 83.6%
Temperature: 50 degrees F Humidity: 50% Dew Point: 31 degrees F
Location: Westport, Massachusetts 02790 Sky Condition: Clear
Comment: Mirky and clouds at 1:45AM
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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 3.32 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: 0.8 arc-seconds RMS
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Images Taken
Number of light frames: 143 Duration: 2 minutes Gain: 100
Camera Temperature: -20 degrees C Binning: 1x1 F-Stop: 7.0
Total Integration Time: 4.77 hours
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Number of flat frames: 52 Duration: 0.15 seconds Gain: 100
Camera Temperature: -20 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: -20 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: -20 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, ImageSolve, SpectroPhotometricColorCalibration, BlurXTerminator, NoiseXterminator
Non-Linear: GeneralizedHyperbolicStretch script, MultiscaleLinearTransform for sharpening., CurvesTransformation, MultiscaleLinearTransform for sharpening, DynamicCrop
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Notes:
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