Messier 35 (M35)
Also Known as: NGC 2168, Collinder 82
Object Type: Open Cluster
Constellation: Gemini
Distance from Earth: 2,800 light years
Apparent Magnitude: 5.3
Coordinates: RA 06H 09.1M 0S DEC 24 deg 21 min 0 sec
Actual Size: 24 light years in diameter
Apparent Dimensions: 28 arc-minutes
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Environmental Data
Date: January 30, 2022 Start Time: 7:19PM End Time: 1:05AM SQM: 19.21
Moon Age: 27.5 days Moonrise: 6:57PM Moon Illumination: 4.8%
Temperature: 17 degrees F Humidity: 60% Dew Point: 5.4 degrees F
Location: Westport, Massachusetts 02790r Sky Condition: Clear
Comment: Installed PHD2 ver 2.6.11. PHD2 calibration good.
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Imaging Scope Data
Mount: iOptron CEM 120 Camera: ZWO ASI2600 OSC Focuser: Optec DirectSync SVX30
Telescope: Stellarvue SV90 refractor Focal Length: 630mm
Focal Reducer/Field Flattener: Field Flattener 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 - 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 sec Binning: 1x1 Tracking Result: 0.75 arc-seconds RMS
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Images Taken
Number of light frames: 92 Duration: 2 minutes Gain: 100
Camera Temperature: -20 degrees C Binning: 1x1 F-Stop: 7.0
Total Integration Time: 3.07 hours
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Number of flat frames: 52 Duration: 0.25 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: DynamicCrop, DynamicBackgroundExtraction, ImageSolve script, SpectroPhotometricColorCalibration, BlurXTerminator
Non-Linear: HistogramTransformation
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Notes:
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