Type Archives - Page 2 of 26 - Roger Nelson Astronomy

NGC 6520

Roger Nelson February 14, 2024110 Finest NGCs, Herschel 400 Catalog, Lists, Log Book, NGC Objects, Open Clusters, Portfolios Leave a Comment

NGC 6520 NGC 6520 is an open cluster in the constellation Sagittarius, superimposed upon the Large Sagittarius Star Cloud. It is magnitude 9.0, diameter 5 arc minutes and class G. It has about 25 stars of magnitude 9 to 12. The dark nebula Barnard 86 lies near its …

NGC 6818

Roger Nelson February 14, 2024110 Finest NGCs, Herschel 400 Catalog, Lists, Log Book, NGC Objects, Planetary Nebulas, Portfolios Leave a Comment

NGC 6818 NGC 6818, Little Gem Nebula is a planetary nebula located in the constellation of Sagittarius. It has magnitude 10 and oval diameter of 15 to 22 arcseconds with a 15th magnitude central star. It was discovered by William …

NGC 6802

Roger Nelson February 14, 2024110 Finest NGCs, Herschel 400 Catalog, Lists, Log Book, NGC Objects, Open Clusters, Portfolios Leave a Comment

NGC 6802 NGC 6802 is a Open Cluster in the Vulpecula constellation. The Cluster lies at the E. End of the “Coat Hanger” asterism also called Brocchi’s Cluster (Collander 399) Just to the right of 7 Vul. The “rail” of …

NGC 6940

Roger Nelson February 14, 2024110 Finest NGCs, Herschel 400 Catalog, Lists, Log Book, NGC Objects, Open Clusters, Portfolios Leave a Comment

NGC 6940 NGC 6940 is an open cluster in the constellation Vulpecula. It was discovered by William Herschel in 1784. The cluster is nearly a billion years old and it is located 2,500 light years away. It is considered the …

NGC 6939

Roger Nelson February 14, 2024110 Finest NGCs, Herschel 400 Catalog, Lists, Log Book, NGC Objects, Open Clusters, Portfolios Leave a Comment

NGC 6939 NGC 6939 is an open cluster in the constellation Cepheus. It was discovered by William Herschel in 1798. The cluster lies 2/3° northwest from the spiral galaxy NGC 6946. The cluster lies approximately 4,000 light years away and …

NGC 6946

Roger Nelson February 14, 2024110 Finest NGCs, Galaxies, Herschel 400 Catalog, Lists, Log Book, NGC Objects, Portfolios Leave a Comment

NGC 6946 NGC 6946, sometimes referred to as the Fireworks Galaxy, is a face-on intermediate spiral galaxy with a small bright nucleus, whose location in the sky straddles the boundary between the northern constellations of Cepheus and Cygnus. Its distance …

NGC 7129

Roger Nelson February 14, 2024110 Finest NGCs, Lists, Log Book, Nebulas, NGC Objects, Open Clusters, Portfolios Leave a Comment

NGC 7129 NGC 7129 is a reflection nebula located 3,300 light years away in the constellation Cepheus. A young open cluster is responsible for illuminating the surrounding nebula. A recent survey indicates the cluster contains more than 130 stars less …

NGC 40

Roger Nelson February 14, 2024110 Finest NGCs, Herschel 400 Catalog, Lists, Log Book, NGC Objects, Planetary Nebulas, Portfolios Leave a Comment

NGC 40 NGC 40 (also known as the Bow-Tie Nebula and Caldwell 2) is a planetary nebula discovered by William Herschel on November 25, 1788, and is composed of hot gas around a dying star. The star has ejected its …

NGC 7000

Roger Nelson February 14, 2024110 Finest NGCs, Herschel 400 Catalog, Lists, Log Book, Nebulas, NGC Objects, Portfolios Leave a Comment

NGC 7000 NGC 7000,The North America Nebula (or Caldwell 20) is an emission nebula in the constellation Cygnus, close to Deneb (the tail of the swan and its brightest star). It is named because its shape resembles North America. On October 24, 1786, William Herschel observing from Slough, England, …