Astronomy

SIMPLE = T / file does conform to FITS standardBITPIX = 20 / number of bits per data pixelNAXIS = 3 / number of data axesNAXIS1 = 5600 / length of data axis 1NAXIS2 = 3728 / length of data axis 2NAXIS3 = 3 / length of data axis 3EXTEND = T / FITS dataset may contain extensionsCOMMENT FITS (Flexible Image Transport System) format is defined in 'AstronomyCOMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359HMIPS-HI = 65535 / Upper visualization cutoffMIPS-LO = 0 / Lower visualization cutoffBZERO = 0 / offset data range to that of unsigned shortBSCALE = 1 / default scaling factorDATE = '2025-01-05T19:05:26' / UTC date that FITS file was createdDATE-OBS= '2025-01-04T04:02:05' / YYYY-MM-DDThh:mm:ss observation start, UTINSTRUME= 'Nikon D500' / instrument nameOBSERVER= ' ' / observer nameTELESCOP= ' ' / telescope used to acquire this imageROWORDER= 'BOTTOM-UP' / Order of the rows in image arrayXPIXSZ = 4.21 / X pixel size micronsYPIXSZ = 4.21 / Y pixel size micronsXBINNING= 1 / Camera binning modeYBINNING= 1 / Camera binning modeFOCALLEN= 293.282 / Camera focal lengthCCD-TEMP= 0 / CCD temp in CSET-TEMP= 0 / Temperature setting in CEXPTIME = 25 / Exposure time [s]STACKCNT= 226 / Stack framesLIVETIME= 5650 / Exposure time after deadtime correctionEXPSTART= 2.46068e+006 / Exposure start time (standard Julian date)EXPEND = 2.46068e+006 / Exposure end time (standard Julian date)FILTER = 'mixed ' / Active filter nameAPERTURE= 2.8 / Aperture of t

SIMPLE = T / file does conform to FITS standardBITPIX = 16 / number of bits per data pixelNAXIS = 3 / number of data axesNAXIS1 = 5600 / length of data axis 1NAXIS2 = 3728 / length of data axis 2NAXIS3 = 3 / length of data axis 3EXTEND = T / FITS dataset may contain extensionsCOMMENT FITS (Flexible Image Transport System) format is defined in 'AstronomyCOMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359HBZERO = 0. / Offset data range to that of unsigned shortBSCALE = 1. / Default scaling factorMIPS-HI = 65535 / Lower visualization cutoffPROGRAM = 'Siril 1.4.0-beta2' / Software that created this HDUFILENAME= 'DSC_4115.NEF'DATE = '2025-05-26T21:11:47' / UTC date that FITS file was createdDATE-OBS= '2025-05-26T03:37:00' / YYYY-MM-DDThh:mm:ss observation start, UTROWORDER= 'BOTTOM-UP' / Order of the rows in image arrayEXPTIME = 30. / [s] Exposure time durationFILTER = 'mixed ' / Active filter nameAPERTURE= 2.79999995231628 / Aperture of the instrumentISOSPEED= 1600. / ISO camera settingFOCALLEN= 70. / [mm] Focal lengthXBINNING= 1 / Camera binning modeYBINNING= 1 / Camera binning modeXPIXSZ = 4.21000003814697 / [um] Pixel X axis sizeYPIXSZ = 4.21000003814697 / [um] Pixel Y axis sizeINSTRUME= 'Nikon D500' / Instrument nameSTACKCNT= 90 / Stack framesLIVETIME= 2700. / [s] Exposure time after deadtime correctionEXPSTART= 2460821.65069444 / [JD] Exposure start time (standard Julian date)EXPEND = 2460821.6843287 / [JD] Exposure end time (standard Julian date)BG-EXTR = 'GraXpert'CBG-1 = 0.00945588CBG-2 = 0.00945588CBG-3 =

SIMPLE = T / file does conform to FITS standardBITPIX = 20 / number of bits per data pixelNAXIS = 3 / number of data axesNAXIS1 = 8288 / length of data axis 1NAXIS2 = 5520 / length of data axis 2NAXIS3 = 3 / length of data axis 3EXTEND = T / FITS dataset may contain extensionsCOMMENT FITS (Flexible Image Transport System) format is defined in 'AstronomyCOMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359HMIPS-HI = 65535 / Upper visualization cutoffMIPS-LO = 0 / Lower visualization cutoffBZERO = 0 / offset data range to that of unsigned shortBSCALE = 1 / default scaling factorDATE = '2024-12-26T17:05:02' / UTC date that FITS file was createdDATE-OBS= '2024-12-21T01:26:13' / YYYY-MM-DDThh:mm:ss observation start, UTINSTRUME= 'Nikon D850' / instrument nameOBSERVER= ' ' / observer nameTELESCOP= ' ' / telescope used to acquire this imageROWORDER= 'BOTTOM-UP' / Order of the rows in image arrayXPIXSZ = 4.34 / X pixel size micronsYPIXSZ = 4.34 / Y pixel size micronsXBINNING= 1 / Camera binning modeYBINNING= 1 / Camera binning modeFOCALLEN= 198.114 / Camera focal lengthCCD-TEMP= 0 / CCD temp in CSET-TEMP= 0 / Temperature setting in CEXPTIME = 25 / Exposure time [s]STACKCNT= 192 / Stack framesLIVETIME= 4800 / Exposure time after deadtime correctionEXPSTART= 2.46067e+006 / Exposure start time (standard Julian date)EXPEND = 2.46067e+006 / Exposure end time (standard Julian date)FILTER = 'mixed ' / Active filter nameAPERTURE= 2.8 / Aperture of t

SIMPLE = T / file does conform to FITS standardBITPIX = 20 / number of bits per data pixelNAXIS = 3 / number of data axesNAXIS1 = 5600 / length of data axis 1NAXIS2 = 3728 / length of data axis 2NAXIS3 = 3 / length of data axis 3EXTEND = T / FITS dataset may contain extensionsCOMMENT FITS (Flexible Image Transport System) format is defined in 'AstronomyCOMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359HMIPS-HI = 65535 / Upper visualization cutoffMIPS-LO = 0 / Lower visualization cutoffBZERO = 0 / offset data range to that of unsigned shortBSCALE = 1 / default scaling factorDATE = '2025-01-04T22:59:02' / UTC date that FITS file was createdDATE-OBS= '2025-01-04T02:09:22' / YYYY-MM-DDThh:mm:ss observation start, UTINSTRUME= 'Nikon D500' / instrument nameOBSERVER= ' ' / observer nameTELESCOP= ' ' / telescope used to acquire this imageROWORDER= 'BOTTOM-UP' / Order of the rows in image arrayXPIXSZ = 4.21 / X pixel size micronsYPIXSZ = 4.21 / Y pixel size micronsXBINNING= 1 / Camera binning modeYBINNING= 1 / Camera binning modeFOCALLEN= 293.098 / Camera focal lengthCCD-TEMP= 0 / CCD temp in CSET-TEMP= 0 / Temperature setting in CEXPTIME = 25 / Exposure time [s]STACKCNT= 230 / Stack framesLIVETIME= 5750 / Exposure time after deadtime correctionEXPSTART= 2.46068e+006 / Exposure start time (standard Julian date)EXPEND = 2.46068e+006 / Exposure end time (standard Julian date)FILTER = 'mixed ' / Active filter nameAPERTURE= 2.8 / Aperture of t

SIMPLE = T / file does conform to FITS standardBITPIX = -32 / number of bits per data pixelNAXIS = 3 / number of data axesNAXIS1 = 8288 / length of data axis 1NAXIS2 = 5520 / length of data axis 2NAXIS3 = 3 / length of data axis 3EXTEND = T / FITS dataset may contain extensionsCOMMENT FITS (Flexible Image Transport System) format is defined in 'AstronomyCOMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359HBZERO = 0. / Offset data range to that of unsigned shortBSCALE = 1. / Default scaling factorPROGRAM = 'Siril 1.4.0-beta3' / Software that created this HDUFILENAME= 'DSC_5629.NEF'DATE = '2025-08-07T03:48:04' / UTC date that FITS file was createdDATE-OBS= '2025-07-27T02:07:32' / YYYY-MM-DDThh:mm:ss observation start, UTROWORDER= 'BOTTOM-UP' / Order of the rows in image arrayEXPTIME = 20. / [s] Exposure time durationFILTER = 'mixed ' / Active filter nameAPERTURE= 2.79999995231628 / Aperture of the instrumentISOSPEED= 1600. / ISO camera settingFOCALLEN= 50. / [mm] Focal lengthXBINNING= 1 / Camera binning modeYBINNING= 1 / Camera binning modeXPIXSZ = 4.34000015258789 / [um] Pixel X axis sizeYPIXSZ = 4.34000015258789 / [um] Pixel Y axis sizeINSTRUME= 'Nikon D850' / Instrument nameSTACKCNT= 263 / Stack framesLIVETIME= 5260. / [s] Exposure time after deadtime correctionEXPSTART= 2460883.58502315 / [JD] Exposure start time (standard Julian date)EXPEND = 2460883.65353009 / [JD] Exposure end time (standard Julian date)HISTORY Saturation enhancement (amount=0.60)BG-EXTR = 'GraXpert'CBG-1 = 0.016037412CBG-2 = 0.016037412CBG-3 = 0.016037412I

SIMPLE = T / file does conform to FITS standardBITPIX = 20 / number of bits per data pixelNAXIS = 3 / number of data axesNAXIS1 = 5600 / length of data axis 1NAXIS2 = 3728 / length of data axis 2NAXIS3 = 3 / length of data axis 3EXTEND = T / FITS dataset may contain extensionsCOMMENT FITS (Flexible Image Transport System) format is defined in 'AstronomyCOMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359HMIPS-HI = 65535 / Upper visualization cutoffMIPS-LO = 0 / Lower visualization cutoffBZERO = 0 / offset data range to that of unsigned shortBSCALE = 1 / default scaling factorDATE = '2024-12-31T02:43:28' / UTC date that FITS file was createdDATE-OBS= '2024-12-21T01:29:50' / YYYY-MM-DDThh:mm:ss observation start, UTINSTRUME= 'Nikon D500' / instrument nameOBSERVER= ' ' / observer nameTELESCOP= ' ' / telescope used to acquire this imageROWORDER= 'BOTTOM-UP' / Order of the rows in image arrayXPIXSZ = 4.21 / X pixel size micronsYPIXSZ = 4.21 / Y pixel size micronsXBINNING= 1 / Camera binning modeYBINNING= 1 / Camera binning modeFOCALLEN= 129.389 / Camera focal lengthCCD-TEMP= 0 / CCD temp in CSET-TEMP= 0 / Temperature setting in CEXPTIME = 20 / Exposure time [s]STACKCNT= 325 / Stack framesLIVETIME= 6500 / Exposure time after deadtime correctionEXPSTART= 2.46067e+006 / Exposure start time (standard Julian date)EXPEND = 2.46067e+006 / Exposure end time (standard Julian date)FILTER = 'mixed ' / Active filter nameAPERTURE= 4 / Aperture of t

SIMPLE = T / file does conform to FITS standardBITPIX = 16 / number of bits per data pixelNAXIS = 3 / number of data axesNAXIS1 = 5600 / length of data axis 1NAXIS2 = 3728 / length of data axis 2NAXIS3 = 3 / length of data axis 3EXTEND = T / FITS dataset may contain extensionsCOMMENT FITS (Flexible Image Transport System) format is defined in 'AstronomyCOMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359HBZERO = 0. / Offset data range to that of unsigned shortBSCALE = 1. / Default scaling factorPROGRAM = 'Siril 1.4.0-beta2' / Software that created this HDUFILENAME= 'DSC_4101.NEF'DATE = '2025-05-29T01:26:58' / UTC date that FITS file was createdDATE-OBS= '2025-05-26T03:07:14' / YYYY-MM-DDThh:mm:ss observation start, UTROWORDER= 'BOTTOM-UP' / Order of the rows in image arrayEXPTIME = 30. / [s] Exposure time durationFILTER = 'mixed ' / Active filter nameAPERTURE= 2.79999995231628 / Aperture of the instrumentISOSPEED= 1600. / ISO camera settingFOCALLEN= 197.473 / [mm] Focal lengthXBINNING= 1 / Camera binning modeYBINNING= 1 / Camera binning modeXPIXSZ = 4.21 / [um] Pixel X axis sizeYPIXSZ = 4.21 / [um] Pixel Y axis sizeINSTRUME= 'Nikon D500' / Instrument nameSTACKCNT= 137 / Stack framesLIVETIME= 4110. / [s] Exposure time after deadtime correctionEXPSTART= 2460821.58168981 / [JD] Exposure start time (standard Julian date)EXPEND = 2460821.63297454 / [JD] Exposure end time (standard Julian date)OBJCTRA = '12 26 10.936' / [H M S] Image center Right AscensionOBJCTDEC= '+12 01 48.827' / [D M S] Image center DeclinationRA = 186.545564

SIMPLE = T / file does conform to FITS standardBITPIX = 20 / number of bits per data pixelNAXIS = 3 / number of data axesNAXIS1 = 8288 / length of data axis 1NAXIS2 = 5520 / length of data axis 2NAXIS3 = 3 / length of data axis 3EXTEND = T / FITS dataset may contain extensionsCOMMENT FITS (Flexible Image Transport System) format is defined in 'AstronomyCOMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359HMIPS-HI = 65535 / Upper visualization cutoffMIPS-LO = 0 / Lower visualization cutoffBZERO = 0 / offset data range to that of unsigned shortBSCALE = 1 / default scaling factorDATE = '2025-02-14T04:46:31' / UTC date that FITS file was createdDATE-OBS= '2025-01-25T01:29:38' / YYYY-MM-DDThh:mm:ss observation start, UTINSTRUME= 'Nikon D850' / instrument nameOBSERVER= ' ' / observer nameTELESCOP= ' ' / telescope used to acquire this imageROWORDER= 'BOTTOM-UP' / Order of the rows in image arrayXPIXSZ = 4.34 / X pixel size micronsYPIXSZ = 4.34 / Y pixel size micronsXBINNING= 1 / Camera binning modeYBINNING= 1 / Camera binning modeFOCALLEN= 293.222 / Camera focal lengthCCD-TEMP= 0 / CCD temp in CSET-TEMP= 0 / Temperature setting in CEXPTIME = 30 / Exposure time [s]STACKCNT= 265 / Stack framesLIVETIME= 7950 / Exposure time after deadtime correctionEXPSTART= 2.4607e+006 / Exposure start time (standard Julian date)EXPEND = 2.4607e+006 / Exposure end time (standard Julian date)FILTER = 'mixed ' / Active filter nameAPERTURE= 2.8 / Aperture of t

SIMPLE = T / file does conform to FITS standardBITPIX = 20 / number of bits per data pixelNAXIS = 3 / number of data axesNAXIS1 = 8288 / length of data axis 1NAXIS2 = 5520 / length of data axis 2NAXIS3 = 3 / length of data axis 3EXTEND = T / FITS dataset may contain extensionsCOMMENT FITS (Flexible Image Transport System) format is defined in 'AstronomyCOMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359HMIPS-HI = 65535 / Upper visualization cutoffMIPS-LO = 0 / Lower visualization cutoffBZERO = 0 / offset data range to that of unsigned shortBSCALE = 1 / default scaling factorDATE = '2025-01-06T21:01:29' / UTC date that FITS file was createdDATE-OBS= '2025-01-04T02:00:21' / YYYY-MM-DDThh:mm:ss observation start, UTINSTRUME= 'Nikon D850' / instrument nameOBSERVER= ' ' / observer nameTELESCOP= ' ' / telescope used to acquire this imageROWORDER= 'BOTTOM-UP' / Order of the rows in image arrayXPIXSZ = 4.34 / X pixel size micronsYPIXSZ = 4.34 / Y pixel size micronsXBINNING= 1 / Camera binning modeYBINNING= 1 / Camera binning modeFOCALLEN= 197.524 / Camera focal lengthCCD-TEMP= 0 / CCD temp in CSET-TEMP= 0 / Temperature setting in CEXPTIME = 30 / Exposure time [s]STACKCNT= 217 / Stack framesLIVETIME= 6510 / Exposure time after deadtime correctionEXPSTART= 2.46068e+006 / Exposure start time (standard Julian date)EXPEND = 2.46068e+006 / Exposure end time (standard Julian date)FILTER = 'mixed ' / Active filter nameAPERTURE= 2.8 / Aperture of t

SIMPLE = T / file does conform to FITS standardBITPIX = 20 / number of bits per data pixelNAXIS = 3 / number of data axesNAXIS1 = 7525 / length of data axis 1NAXIS2 = 4372 / length of data axis 2NAXIS3 = 3 / length of data axis 3EXTEND = T / FITS dataset may contain extensionsCOMMENT FITS (Flexible Image Transport System) format is defined in 'AstronomyCOMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359HMIPS-HI = 65535 / Upper visualization cutoffMIPS-LO = 596 / Lower visualization cutoffBZERO = 0 / offset data range to that of unsigned shortBSCALE = 1 / default scaling factorDATE = '2024-12-26T05:13:14' / UTC date that FITS file was createdDATE-OBS= '2024-12-21T02:55:33' / YYYY-MM-DDThh:mm:ss observation start, UTINSTRUME= 'Nikon D850' / instrument nameOBSERVER= ' ' / observer nameTELESCOP= ' ' / telescope used to acquire this imageROWORDER= 'BOTTOM-UP' / Order of the rows in image arrayXPIXSZ = 4.34 / X pixel size micronsYPIXSZ = 4.34 / Y pixel size micronsXBINNING= 1 / Camera binning modeYBINNING= 1 / Camera binning modeFOCALLEN= 197.477 / Camera focal lengthCCD-TEMP= 0 / CCD temp in CSET-TEMP= 0 / Temperature setting in CEXPTIME = 25 / Exposure time [s]STACKCNT= 189 / Stack framesLIVETIME= 4725 / Exposure time after deadtime correctionEXPSTART= 2.46067e+006 / Exposure start time (standard Julian date)EXPEND = 2.46067e+006 / Exposure end time (standard Julian date)FILTER = 'mixed ' / Active filter nameAPERTURE= 2.8 / Aperture of t