NGC 1587, NGC 1588, NGC 1589
Also Known as: UGC 3063, Leda 15332 (NGC 1587), PGC 15340 (NGC 1588), PGC 15342, UGC 3065 (NGC 1589)
Object Type: Galaxies
Constellation: Taurus
Distance from Earth: 164 million light years (NGC 1587), 130 million light years (MGC 1588), 170 million light years (NGC 1589)
Apparent Magnitude: 11.7 (NGC 1587), 14.1 (NGC 1588), 11.81 (NCG 1589)
Coordinates: RA 04H 32M 02S DEC 00 deg 54 min 58 sec (NGC 1589)
Actual Size:
Apparent Dimensions: 2.08 arc-minutes x 1.48 arc-minutes (NGC 1587), 1.26 arc-minutes x 0.7 arc-minutes (NGC 1588), 3.06 arc-minutes x 0.98 arc-minutes (NGC 1589)
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Environmental Data
Date: January 17, 2025 Start Time: 6:22PM End Time: 1:02AM SQM: 19.53
Moon Age: 18.1 days Moonrise: 8:45PM Moon Illumination: 88.1%
Temperature: 24.6 degrees F Humidity: 59% Dew Point: 12.4 degrees F
Location: Westport, Massachusetts 02790 Sky Condition: Clear
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: Optolong L-Pro
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 2.38 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: between 0.64 arc-seconds RMS & 1.2 arc-seconds RMS
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Images Taken
Number of light frames: 175 Duration: 2 minutes Gain: 100
Camera Temperature: -20 degrees C Binning: 1x1 F-Stop: 7.0
Total Integration Time: 5.83 hours
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Number of flat frames: 50 Duration: 0.1 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: ImageSolve, SpectroPhotometricFluxCalibration, MultiscaleGradientCorrection, ImageSolve, SpectroPhotometricColorCalibration, BlurXTerminator, NoiseXterminator
Non-Linear: GeneralizedHyperbolicStretch script, MultiscaleLinearTransform for sharpening, CurvesTransformation, DynamicCrop
Notes:
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