Hubble Space Telescope multi-color ACS mosaic of M82:
downloadable FITS data and associated preview images

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The table below lists the FITS files grouped by filter/bandwidth. Drizzled science data (*_drz_sci.fits) with corresponding weight maps (*_weight.fits), in FITS format. These have a scale of 0.05 arcsec per pixel, and have dimensions of 12288 x 12288 pixels (10.24 x 10.24 arcminutes) (~604 MB each when uncompressed). These files have been compressed for a faster download and are about 307 MB each. Low-resolution (1/4) block-averaged FITS versions of each mosaic and weight map were also produced using the IRAF blkavg task, mainly for "quick-look" downloading and viewing, and/or for educational purposes (not intended for scientific analysis). These have a scale of 0.20 arcsec per pixel, and dimensions of 3072 x 3072 pixels (~38 MB each, or 1/16 the size of the full-resolution mosaics).

Image filename Click on filename to download data	Filter	Exposure Time	Black & White preview	Weight preview
h_m82_b_s05_drz_sci.fits h_m82_b_s05_drz_weight.fits h_m82_b_s20_drz_sci.fits h_m82_b_s20_drz_weight.fits	F435W (B)	1600s
h_m82_v_s05_drz_sci.fits h_m82_v_s05_drz_weight.fits h_m82_v_s20_drz_sci.fits h_m82_v_s20_drz_weight.fits	F555W (V)	1360s
h_m82_i_s05_drz_sci.fits h_m82_i_s05_drz_weight.fits h_m82_i_s20_drz_sci.fits h_m82_i_s20_drz_weight.fits single pointing covering SN2014J with improved absolute astrometry	F814W (I)	1360s
h_m82_h_s05_drz_sci.fits h_m82_h_s05_drz_weight.fits h_m82_h_s20_drz_sci.fits h_m82_h_s20_drz_weight.fits	F658N (H-alpha)	3320s