Messier 5 (M5)
Also Known as: NGC 5904
Object Type: Globular Cluster
Constellation: Serpens
Distance from Earth: 24,500 Light years
Apparent Magnitude: 6.65
Coordinates: RA 15H 18M 33.22S DEC 02deg 04min 51.7sec
Actual Size: 165 light years in diameter.
Apparent Dimensions: 23 arc minutes.
--------------------------------------------------------------------------
Environmental Data
Date: May 24, 2022 Start Time: 9:10PM End Time: 1:16 AM SQM: 16.10
Moon Age: 23.9 days Moonrise: 2:42AM Moon Illumination: 32.0%
Temperature: 53 degrees F Humidity: 70% Dew Point: 44 degrees F
Location: Westport, Massachusetts 02790 &nbsSky Condition: Clear
Comment:
--------------------------------------------------------------------------
Imaging Scope Data
Mount: iOptron CEM120 Camera: ZWO ASI2600 OSC Focuser: Optec DirectSync SV35
Telescope: Stellarvue SVX130 refractor Focal Length: 910mm
Focal Reducer/Field Flattener: Field Flattener Filter: None
Rotator: Pegasus Falcon Power Control: Pegasus 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 Good HFR 3.1 Platesolve: Good on 1st attempt
--------------------------------------------------------------------------
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
--------------------------------------------------------------------------
Images Taken
Number of light frames: 175 Duration: 1 minute Gain: 100
Camera Temperature: -10 degrees C Binning: 1x1 F-Stop: 7.0
Total Integration Time: 2.91 hours
--------------------------------------------------------------------------
Number of flat frames: 50 Duration: 0.05 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
--------------------------------------------------------------------------
Number of Dark frames: 50 (from library) Duration: 1 minute Gain: 100
Camera Temperature: -10 degrees C Binning: 1x1 F-Stop: 7.0
--------------------------------------------------------------------------
Number of Bias frames: 50 (from library) Duration: 0.001 seconds Gain: 100
Camera Temperature: -10 degrees C Binning: 1x1 F-Stop: 7.0
--------------------------------------------------------------------------
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, HistogramTransformation, DynamicCrop
--------------------------------------------------------------------------
Notes: 1st attempt at Platesolving was not succesful. Determined that the mount was not tracking properly. Reset, ran PHD2 calibration and then ASTAP platesolve which was successful on the 1st attempt.
Click Below Image for Full Size:
Click to Return to Home Page