Maurycy
Yesterday
The Tadpole galaxy:
North is up (exact, mirrored). 0.53 "/pixel [18.8' x 7.4'] FWHM = 4.2" This galaxy has a massive (and rather bright) tidal tail, but I can't see an obvious companion galaxy. The general consensus is that there's a second galaxy behind it... although a nearby elliptical has a suspiciously similar redshift: Not my finest work due to some patchy clouds, but not terrible. Callibration (dark + flat) Stacking (average w/ outlier rejection) White balance and background subtraction (no gradient removal) Asinh stretch (color preserving) Rotation + crop /astro/arp188/stacked.fits.fz : Raw stacks https://ned.ipac.caltech.edu/level5/Arp/Figures/big_arp188.jpeg : Arp's image
Data Visualization
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