NGC/IC Objects

IC 4593: Planetary Nebula (Hercules) RA: 16h 11.7m / DEC: +12° 04'.3
Instrument: 10-inch Starfinder

Planetary nebulae offer some of the most interesting observing targets in the night sky. They can appear linear, square, circular or any of several different shapes. This guy, IC 4593, resides in southern Hercules along the border with Serpens. My drawing captures the nebula's appearance in the 10-inch Starfinder at 247X, a magnification achieved by pairing a Meade 13.8-mm SWA eyepiece with TeleVue's 3X Barlow. IC 4593 is tiny, just 30" in diameter, and has a bright 11.2 magnitude central star. The central star burns through the surrounding nebulosity intermittently as I flit between direct and averted vision. A 9.4 magnitude star blazes 5' to the northwest and just inside the field boundary. Another four stars complete the view.


IC 3568 IC 4617

line

Navigation Image, see text links below Web Links Glossary Sketching Astrophotography Planetary Observing Deep-sky Observing Getting Started About Cosmic Voyage Home

Home | About Cosmic Voyage | Getting Started | Deep-sky Observing | Planetary Observing | Astrophotography | Sketching | Glossary | Web Links

line

URL: http://www.cosmicvoyage.net
Layout, design & revisions © W. D. Ferris
Comments and Suggestions: wdferris1@gmail.com

Revised: May 21, 2006 [WDF]