Messier 58 (M58)
Also Known as: NGC 4579
Object Type: Intermediate Barred Spiral Galaxy
Constellation: Virgo
Distance from Earth: 62 million light years
Apparent Magnitude: 10.5
Coordinates: RA 12H 37M 43.5S DEC 11deg 49min 05sec
Actual Size: 98,129.8 light years in diameter
Apparent Dimensions: 5.9 arc-minutes x 4.7 arc-minutes
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Environmental Data
Date: May 10, 2023 Start Time: 8:54PM End Time: 2:23AM SQM: 14.22
Moon Age: 19.7 days Moonrise: 0:41AM Moon Illumination: 74.8%
Temperature: 59 degrees F Humidity: 70% Dew Point: 49 degrees F
Location: Westport, Massachusetts 02790 Sky Condition: Mirky
Comment:
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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 Platesolve: Success on 2nd attempt
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Guide Scope Data
Telescope: Stellarvue SV90 refractor Camera: ZWO ASI290 Focuser: Optec DirectSync SVX30
Dew Heater: Kendrick dew strip Software: PHD2 Exposure: 2 sec Binning: 1x1 Tracking Result: 0.7 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: 1x1 F-Stop: 7.0
Total Integration Time: 5 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: DynamicCrop, DynamicBackgroundExtraction, ImageSolve, SpectroPhotometricColorCalibration, BlurXTerminator, NoiseXterminator
Non-Linear: GeneralizedHyperbolicStretch script, MultiscaleLinear Transform to sharpen, CurvesTransformation, MultiscaleLinear Transform to sharpen, DynamicCrop
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Notes:
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