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NOTE: Most of the High Level Science Products are unavailable while unscheduled maintenance is being performed. They will be incrementally restored over the course of this week. We apologize for any inconvenience.

Hubble Space Telescope multi-color ACS mosaic of M51:
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 8600 x 12200 pixels (~420 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 2150 x 3050 pixels (~26 MB each, or 1/16 the size of the full-resolution mosaics).

Image filename
Click on filename to download data
Filter Exposure Time Limiting mag* Black & White preview Weight preview
h_m51_b_s05_drz_sci.fits
h_m51_b_s05_drz_weight.fits
h_m51_b_s20_drz_sci.fits
h_m51_b_s20_drz_weight.fits
F435W (B) 2720s 27.3 mB
h_m51_v_s05_drz_sci.fits
h_m51_v_s05_drz_weight.fits
h_m51_v_s20_drz_sci.fits
h_m51_v_s20_drz_weight.fits
F555W (V) 1360s 26.5 mV
h_m51_i_s05_drz_sci.fits
h_m51_i_s05_drz_weight.fits
h_m51_i_s20_drz_sci.fits
h_m51_i_s20_drz_weight.fits
F814W (I) 1360s 25.8 mI
h_m51_h_s05_drz_sci.fits
h_m51_h_s05_drz_weight.fits
h_m51_h_s20_drz_sci.fits
h_m51_h_s20_drz_weight.fits
F658N (H-alpha) 1360s NA

* for point source at S/N = 5 Johnson filters