Melipal 发表于 2003-6-21 22:18

银河系的中心

ESO PR Photo 12h/03


Caption: PR Photo 12h/03 shows a 90-second K-band exposure of the central 6 x 13 arcsec2 around the Galactic Center obtained by MACAO-VLTI under average atmospheric conditions (0.8 arcsec seeing). Although the 14.6 magnitude guide star is located roughly 20 arcsec from the field center - this leading to isoplanatic degradation of image sharpness - the present image is nearly diffraction limited and has a point-source FWHM of about 0.115 arcsec.

portiff 发表于 2003-6-22 15:55

星体很稀少?
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