Melotte 15 in Cassiopeia - SHO
In his catalogue of 1915, Philibert Jacques Melotte (1880-1961), a Britsih astronomer of Belgian parentage, described object number 15 as being, ‘A very loose cluster. Somewhat similar to NGC 1027, but stars not so numerous and generally brighter’ (A catalogue of Star Clusters shown on Fraklin-Adams Chart Plates; Melotte, PJ, 12 March 1915).
Melotte 15 lies within the heart of the Heart Nebula (IC 1805), around 7,500 light years away in the constellation of Cassiopeia.
Data for Melotte 15 were gathered between 28 October and 17 November 2018 from a remote imaging rig in Spain that is owned and operated by Barry Wilson and me.
Capture details are as follows:
Telescope: TEC 140
Camera: QSI 690
Filters: Astrodon 3nm NB
Mount: 10 Micron GM2000HPS
Ha: 19 x 1200s
OIII: 21 x 1200s
SII: 21 x 1200s
A total of 20 hours and 20 minutes exposure.
Data Capture: Steve Milne & Barry Wilson
Image Processing: Steve Milne
Melotte 15open star clusterstar clusteropen clusterHeart NebulaIC 1805IC1805constellationCassiopeia