Analyzing Observations of NGC 7662 Taken with the University of Maryland Observatory 14-inch Celestron Telescope in the i' and g' Filters

ORAL

Abstract

NGC 7662, informally known as the ``Blue Snowball Nebula'', is a planetary nebula located in the Andromeda constellation.~ It was observed at the University of Maryland Observatory with the 14-inch Celestron telescope through Sloan i' and g' filters, with the intent of comparing the nebula in the images for size and brightness.~ The images were collected and calibrated to correct for both additive and multiplicative noise, which could originate from the night sky or the CCD itself.~ The calibrated images were then analyzed for brightness in two ways: through direct ADU counts and by using a function to determine the flux of the nebula.~ The size was determined through pixel measurements.~ It was found that NGC 7662 was brighter in the g' filter, with the flux being7.61 \textpm 0.03 *10$^{\mathrm{8}}$ e/px in the g' filter and 2.75 \textpm 0.05 *10$^{\mathrm{7}}$ e/px in the i' filter.~ As well, the nebula appeared larger in the g' filter, with measurements of 118x111 pixels in the g' filter and 99x107 pixels in the i' filter.

*University of Maryland Astronomy Observatory

Authors

  • Morgan Craver

    • University of Maryland, College Park
  • Austen Fourkas

    • University of Maryland, College Park
  • Connor Churko

    • University of Maryland, College Park
  • Rachel Scrandis

    • University of Maryland, College Park