Melotte 15/IC1805 The heart of the heart nebula

Cosmic clouds seem to form fantastic shapes in the central regions of emission nebula IC 1805. Of course, the clouds are sculpted by stellar winds and radiation from massive hot stars in the nebula’s newborn star cluster, Melotte 15. About 1.5 million years young, the cluster stars are in the center of this colorful skyscape, along with dark dust clouds in silhouette against glowing atomic gas. A composite of narrow and broad band telescopic images, the view spans about 5 light-years and includes emission from hydrogen in green, sulfur in red, and oxygen in blue hues. Wider field images reveal that IC 1805’s simpler, overall outline suggests its popular name – The Heart Nebula. IC 1805 is located about 7,500 light years away toward the constellation Cassiopeia.

The image was taken during several nights from October till November 2012.


9 x 1800s H-alpha (4,5nm – 06/10/2012)

12 x 1800s OIII (3nm – 10/10/2012)

11 x 1800s S2 (5nm – 17/11/2012)

10 x 300s R,G,B (22/10/2012)

Equipment used:

TEC-140 telescope


NEQ-6 mount

Here is an image showing the different channels used for this image:


Leave a Reply

Your email address will not be published. Required fields are marked *

Time limit is exhausted. Please reload the CAPTCHA.

This site uses Akismet to reduce spam. Learn how your comment data is processed.