Showing posts with label Clusters. Show all posts
Showing posts with label Clusters. Show all posts

Caldwell 13 Owl Cluster and M82 Cigar Galaxy.





Both of these images were taken from my back garden in Castleford on the 28th October 2014. They are both made up of around 45 60 second exposures (ISO 1600) stacked in Deep Sky Stacker with 30 darks and 30 bias frames. Then processed in photoshop. I used a Canon 1200d SLR mounted on a Skywatcher 200PDS with a HEQ5Pro.

NGC7023 - The Iris Nebula

The Iris Nebula (also known as Caldwell 4) is a bright reflection nebula in the constellation Cepheus. NGC 7023 is actually the cluster within the nebula, with the nebula lit by a magnitude +7 star (SAO 19158) within the cluster. The nubula lies 1,300 light-years away and is approximately six light-years across.

27/11/2013
82x300sec Subs, Darks, Flats and Bias

Kemble's Cascade


Kemble's Cascade is an asterism (a pattern created by unrelated stars) located in the constellation of Camelopardalis. It is an apparent straight line of more than 20 colourful 5th to 10th magnitude stars over a distance of approximately five moon diameters. It was named in honour of Father Lucian Kemble (1922–1999), a Franciscan friar and amateur astronomer who discovered it while sweeping the sky with a pair of 7x35 binoculars. He described it as "a beautiful cascade of faint stars tumbling from the northwest down to the open cluster NGC 1502".

10/12/12
A 3-panel mosaic.
Each panel 9x5min Subs, Darks, Flats and Bias.

M45 - The Pleiades


M45 - The Pleiades or Seven Sisters, is an open cluster containing middle-aged hot stars, located in the constellation of Taurus, and one of the nearest star cluster to Earth. The cluster is dominated by hot, blue and extremely luminous stars that have formed within the last 100 million years.

10/11/12
12x5min Subs, Darks, Flats and Bias

Bonfire Night Double Cluster


The Double Cluster is the common name for open clusters NGC 884 and NGC 869 in Perseus. The clusters are at distances of 7600 and 6800 light-years away, respectively, so they are also fairly close to each other in space. These are relatively young clusters, with NGC 869 being around 5.6 million years old and NGC 884 around 3.2 million years old. Unlike most other object in the Universe, these clusters are blueshifted and are approaching Earth at a speed of around 22 km/s.

5/11/12
16x5min Subs, Darks, Flats and Bias.