Lists Archives - Page 22 of 25 - Roger Nelson Astronomy

M12 Globular Cluster

Roger Nelson January 13, 2024Globular Clusters, Lists, Log Book, Messiers, NGC Objects, Portfolios Leave a Comment

M12 Globular Cluster M12 Messier 12 is a globular cluster in the constellation of Ophiuchus. It was discovered by the French astronomer Charles Messier on May 30, 1764, who described it as a “nebula without stars”. In dark conditions this cluster …

M11 Wild Dusk cluster

Roger Nelson January 13, 2024Lists, Log Book, Messiers, Nebulas, NGC Objects, Open Clusters, Portfolios Leave a Comment

M11 Wild Dusk cluster M11 Wild Duck Cluster is an open cluster of stars in the constellation Scutum. It was discovered by Gottfried Kirch in 1681. Charles Messier included it in his catalogue of diffuse objects in 1764. Its popular …

M10

Roger Nelson January 12, 2024Globular Clusters, Lists, Log Book, Messiers, Portfolios Leave a Comment

M10 M10 Messier 10 or M10 (also designated NGC 6254) is a globular cluster of stars in the equatorial constellation of Ophiuchus. The object was discovered by the French astronomer Charles Messier on May 29, 1764, who cataloged it as …

M9

Roger Nelson January 12, 2024Globular Clusters, Log Book, Messiers, NGC Objects, Portfolios Leave a Comment

M9 Messier 9 or M9 (also designated NGC 6333) is a globular cluster in the constellation of Ophiuchus. It is positioned in the southern part of the constellation to the southwest of Eta Ophiuchi, and lies atop a dark cloud of dust designated Barnard 64. The cluster was discovered by French …

M8

Roger Nelson January 12, 2024Lists, Log Book, Messiers, Nebulas, NGC Objects, Portfolios Leave a Comment

M8 The Lagoon Nebula (catalogued as Messier 8 or M8, NGC 6523, Sharpless 25, RCW 146, and Gum 72) is a giant interstellar cloud in the constellation Sagittarius. It is classified as an emission nebula and as an H II …

M7

Roger Nelson January 12, 2024Log Book, Messiers, NGC Objects, Open Clusters, Portfolios Leave a Comment

M7 Messier 7 or M7, also designated NGC 6475 and sometimes known as the Ptolemy Cluster, is an open cluster of stars in the constellation of Scorpius. The cluster is easily detectable with the naked eye, close to the “stinger” …

M6

Roger Nelson January 12, 2024Lists, Log Book, Messiers, NGC Objects, Open Clusters, Portfolios Leave a Comment

M6 M6 or the Butterfly Cluster (cataloged as Messier 6 or M6, and as NGC 6405) is an open cluster of stars in the southern constellation of Scorpius. Its name derives from the vague resemblance of its shape to a …

M5

Roger Nelson January 12, 2024Globular Clusters, Lists, Log Book, Messiers, NGC Objects, Portfolios Leave a Comment

M5 M5 or Messier 5 (also designated NGC 5904) is a globular cluster in the constellation Serpens. It was discovered by Gottfried Kirch in 1702. M5 is, under extremely good conditions, just visible to the naked eye as a faint …

M4

Roger Nelson January 12, 2024Globular Clusters, Lists, Messiers, NGC Objects, Portfolios Leave a Comment

M4 Messier 4 or M4 (also designated NGC 6121) is a globular cluster in the constellation of Scorpius. It was discovered by Philippe Loys de Chéseaux in 1745 and catalogued by Charles Messier in 1764. It was the first globular …