NGC/IC Objects

NGC 6642: Globular Star Cluster (Sagittarius) RA: 18h 31.9m / DEC: -23° 28'.6
Instrument: 10-inch Starfinder

The sketch at left presents NGC 6642, an 8.9 magnitude globular star cluster in Sagittarius. This object is often overlooked in favor of nearby M22, a spectacular globular located about a degree to the east-southeast. NGC 6642 features a brighter core region, 3' in diameter, surrounded by a somewhat fainter outer nebulosity. The entire object occupies a 7' diameter area. The bright star near the northwest field boundary is 7.7 magnitude HD 170622. A closely grouped trio of 9th magnitude GSC stars mark the southern field boundary. Another 32 field stars complete the view.


NGC 6638 NGC 6645

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: March 8, 2002 [WDF]