SWAN21D On 01.77 UT from Dauban #A77 TEL 0.4-m f/2.8 reflector + CCD Atik460ex 410s exp (unfiltered) Photometry aperture radius used for m2 = 5.8 arcsec (7 pixels, 0.83 arcsec/pix) Photometry aperture radius used for m1 = 0.4 arcmin |
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