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Final drawing:

NGC 7253 A-B

NGC 7253 A-B

Drawing data

Object(s):
NGC 7253 A Peg GX
NGC 7253 B Peg GX
Date(s) of observation:
2014.08.22/23. Ágasvár
2014.08.24/25. Ágasvár
Place(s) of observation:
Ágasvár
Telescope(s) used:
16" f/4.4 Newtonian (MCSE Dobson)
Enlargement(s) used:
220x (8 mm Planetary)
Author / Observer:
Peter Kiss

Description

NGC 7253 A-B drawing inverted into positive.
NGC 7253 A-B drawing inverted into positive.

I planned to draw Arp galaxies during the summer astro-week of 2014  at Ágasvár. The inspiration came from Jeff Kanipe's and Dennis Webb's excellent book. I picked some galaxies well before and sticked post-it on the photos so that the images don't influence me and to decrease the temptation to take a look at them. This proved to be a bad idea as the glue left a permanent mark in the beautiful book.

The first galaxy of the week was NGC 7253 A-B in Pegasus (Arp 278). It was a pleasant surprise straight away because the galaxies (with brightnesses 13.6m and 14.4m) were spectacular. I wouldn't say that there are so many details: both galaxies have diffuse central parts, component A (the lower one) is brighter and bigger, its northern (right) side has more contrast, its left side is more diffuse and probably there are two tiny brighter spots in it (?). If you take a look at high quality photos, both galaxies are spirals - pretty much torn apart. Their classification is SB? and S?.

Comparison with the photograph

NGC 7253 A-B drawing inverted into positive.
NGC 7253 A-B drawing made with a 16" Newtonian telescope. Peter Kiss
NGC 7253 A-B photograph by SDSS (Sloan Digital Sky Survey).
NGC 7253 A-B photograph by SDSS (Sloan Digital Sky Survey). Credit: SDSS

The SDSS (Sloan Digital Sky Survey) photograph of NGC 7253 A-B can be seen to the left made with the 2.5m telescope. I rotated and cropped the photograph so that it can directly be compared to my inverted drawing.

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