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Hubble Space Telescope
Aperture Corrections

This page presents revised calculations of the encircled energy values published in Sirianni et al. (2005, hereafter S05). Tabled corrections for WFC and HRC on this page are from Bohlin ISR 16-03 (2016), corrections for SBC are from Avila et al ISR 16-05 (2016).

Table 1

Encircled Energy fractions for K type and hotter stars in 0.5" and 1.0" apertures.

Table of WFC Encircled Energy corrections from ISR 16-03.
Table of HRC Encircled Energy corrections from ISR 16-03.
Table of SBC Encircled Energy corrections from ISR 16-05.

Table 2

Encircled Energy within 0.5" for very cool stars as a function of spectral type. Updated values from ISR 16-03 are flagged with an asterisk, while the rest are from S05. For unspecified entires, refer to Table 1.

Table 3

As for Table 2, except that the Encircled Energy fractions are for a 1.0" aperture.

REFERENCES

Last modified on Nov 10, 2016.