Two very small and very dim galaxies lie just south of the star Alpheratz. The first, H.IV.15 (left), was classed by Herschel as a planetary nebula; frankly, I would have made the same mistake had I not known better. Actually, it is a small, 13th magnitude elliptical.
The other is H.III.147 (right), another 13th magnitude galaxy -- this time a spiral. These two objects are a real test for vision, the telescope, and the night.
NGC: | 16 | 17 |
OTHER NAMES: | H.IV.15 | H.III.147 |
CLASS: | elliptical galaxy | spiral galaxy |
SIZE: | 1' x 0.7' | 1.5' x 0.5'' |
MAGNITUDE: | +13.2 | +13 |
POSITION: | ||
CONSTELLATION: | Pegasus | |
DATE OF SKETCH: | 08/306/76 | |
MAGNIFICATION USED: | 70x |