Open Clusters Archives - Roger Nelson Astronomy

Beauty abounds in Kemble’s Cascade and NGC 1502

Roger Nelson February 22, 2024Asterisms, Herschel 400 Catalog, Lists, Log Book, Open Clusters, Portfolios Leave a Comment

Kemble’s Cascade – a beautiful cascade of faint stars tumbling Kemble’s Cascade (designated Kemble 1) is an asterism located in the constellation Camelopardalis. It is an apparent straight line of more than 20 colourful 5th to 10th magnitude stars over …

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 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 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 …

Roger's Astronomy Portfolios

Beauty abounds in Kemble’s Cascade and NGC 1502

NGC 6520

NGC 6802

NGC 6940

NGC 6939

NGC 7129

NGC 6633

NGC 6819

NGC 1931