View allAll Photos Tagged m13
Here is a closeup of the core of the cluster. The Planewave seems to do its job...stars resolved down deep. The field of view is also exceptionally flat: stars perfectly rounded up to the edge of the field of view.
juste 2minute de pause en 2 photos, sous un bon ciel de bretagne(Sylfiac), loin des côtes et des basses pression sodium.
Veterans Day at Cantigny in Wheaton, IL featured approximately 2000 luminary candles arranged on the Parade Field.
Taken at SGL6 star party - Hereford with a 8 inch Newtonion (Orion Optics AG8) on an EQ6 with an artemis 4021 camera - 20 mins each of Red, Green and Blue
UTRECHT, NETHERLANDS - SEPTEMBER 29: Roy Hodgson, manager of Liverpool looks on during a Liverpool training session and press conference at the Galgenwaard Stadium on September 29, 2010 in Utrecht, Netherlands. (Photo by Jamie McDonald/Getty Images)
M13 a globular cluster of stars in the constellation of Hercules, over 20,000 light years from Earth.
SIMPLE = T / file does conform to FITS standard
BITPIX = -32 / number of bits per data pixel
NAXIS = 3 / number of data axes
NAXIS1 = 3825 / length of data axis 1
NAXIS2 = 2255 / length of data axis 2
NAXIS3 = 3 / length of data axis 3
EXTEND = T / FITS dataset may contain extensions
COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy
COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H
MIPS-FHI= 1 / Upper visualization cutoff
MIPS-FLO= 0 / Lower visualization cutoff
BZERO = 0 / offset data range to that of unsigned short
BSCALE = 1 / default scaling factor
DATE = '2023-07-15T14:03:33' / UTC date that FITS file was created
DATE-OBS= '2023-07-14T21:33:33.108000' / YYYY-MM-DDThh🇲🇲ss observation start,
INSTRUME= 'Canon DSLR EOS 700D' / instrument name
OBSERVER= 'stef lond' / observer name
TELESCOP= 'EQMod Mount' / telescope used to acquire this image
ROWORDER= 'TOP-DOWN' / Order of the rows in image array
XPIXSZ = 4.29 / X pixel size microns
YPIXSZ = 4.29 / Y pixel size microns
XBINNING= 1 / Camera binning mode
YBINNING= 1 / Camera binning mode
FOCALLEN= 400 / Camera focal length
CCD-TEMP= 54 / CCD temp in C
EXPTIME = 30 / Exposure time [s]
STACKCNT= 15 / Stack frames
LIVETIME= 450 / Exposure time after deadtime correction
EXPSTART= 2.46014e+06 / Exposure start time (standard Julian date)
EXPEND = 2.46014e+06 / Exposure end time (standard Julian date)
IMAGETYP= 'Light Frame' / Type of image
OBJECT = 'Unknown ' / Name of the object of interest
ISOSPEED= 800 / ISO camera setting
SITELAT = 47.9167 / [deg] Observation site latitude
SITELONG= 1.93306 / [deg] Observation site longitude
CTYPE1 = 'RA---TAN' / Coordinate type for the first axis
CTYPE2 = 'DEC--TAN' / Coordinate type for the second axis
CUNIT1 = 'deg ' / Unit of coordinates
CUNIT2 = 'deg ' / Unit of coordinates
EQUINOX = 2000 / Equatorial equinox
OBJCTRA = '16 41 42.45' / Image center Right Ascension (hms)
OBJCTDEC= '36 27 44.30' / Image center Declination (dms)
RA = 250.427 / Image center Right Ascension (deg)
DEC = 36.4623 / Image center Declination (deg)
CRPIX1 = 1852 / Axis1 reference pixel
CRPIX2 = 1245 / Axis2 reference pixel
CRVAL1 = 250.427 / Axis1 reference value (deg)
CRVAL2 = 36.4623 / Axis2 reference value (deg)
CDELT1 = 0.000614602 / X pixel size (deg)
CDELT2 = 0.000614602 / Y pixel size (deg)
PC1_1 = 0.12241 / Linear transformation matrix (1, 1)
PC1_2 = -0.99248 / Linear transformation matrix (1, 2)
PC2_1 = 0.99248 / Linear transformation matrix (2, 1)
PC2_2 = 0.12241 / Linear transformation matrix (2, 2)
AIRMASS = 1.02506 / Airmass
HISTORY mean stacking with winsorized sigma clipping rejection (low=3.000 high=3
HISTORY .000), additive+scaling normalized input, normalized output, no image we
HISTORY ighting, unequalized RGB
HISTORY Recadrage (x=740, y=718, w=3825, h=2255)
HISTORY Extraction du gradient (Correction : Subtraction)
HISTORY Extraction du gradient (Correction : Subtraction)
HISTORY Photom trie
HISTORY Photom trie
HISTORY D convolution
HISTORY Transformation asinh : (stretch= 50.1, bp=0.00200)
HISTORY Transf. histogramme (mid=0.129, lo=0.020, hi=1.000)
HISTORY SCNR (type=neutre moyen, qt =1.00, pr serve=true)
HISTORY Rehaussement de la saturation (quantit =0.20)
HISTORY R duction de la trame (niveau=1.00)
HISTORY Débruitage NL-Bayes (mod=1.000, CC activée)
HISTORY Réduction de la trame (niveau=1.00)
END