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NGC 135


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Mean galaxy luminosity classifications
To prepare a catalog of weighted means on the classification system ofvan den Bergh, we have combined eight independent lists of luminosityclass estimates, L. Luminosity class values from each set weretransformed to the standard system and weighted according to the errorsderived through a statistical comparison of L differences betweencatalog pairs. Relations were derived for predicting accidental errorsassociated with galaxy diameter and inclination. In addition, we presentformulas for correcting systematic errors associated with diameter andinclination. Finally, we tabulate a high weight subsample of the meanluminosity classes usable as standards. Most values are tabulated in theThird Reference Catalog of Bright Galaxies.

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观测天体数据

星座:鯨魚座
右阿森松:00h31m45.80s
赤纬:-13°20'14.0"
明显尺寸:0.661′ × 0.372′

目录:
适当名称   (Edit)
NGC 2000.0NGC 135
ICIC 26
HYPERLEDA-IPGC 2010

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