 |
The Details |
|
Object |
IC 1805, IC 1795 and NGC 896 in Cassiopeia |
Optics |
Takahashi FCT-76 at f/4.5 |
Platform |
Astro-Physics 1200 GTO |
Camera |
SBIG ST-10XME |
Filters |
Custom Scientific 3nm Hydrogen-Alpha |
Date |
16 September 2004 |
Location |
Mount Laguna, San Diego County, CA |
Exposure |
Ha 6 x 1800 sec 1x1 bin |
Software |
Maxim DL/CCD, Registar, CCDSharp, Photoshop |
| Orientation | Field of View: 02° 26’ x 01° 38’ centered on RA 02h32m14s DEC 61°30’12”. North angle 40.5°; east 90° CCW from north |
| Notes | IC 1805 is a very faint emission nebula also known as the Heart Nebula because of its obvious shape. You can even see the septum dividing the right ventricle/auricle chambers from the left. Within the nebula, surrounding the bright “heart” of the Heart, is a meager open cluster designated Melotte 15 containing a few brighter star (brightest star at magnitude 7.87). NGC 896 and IC 1795 comprise the smaller nebula region right of the Heart’s apex (right side of photo). Splitting hairs, NGC is the brighter nebula to the right of the prominent dark lane and contains a quite bright absorption patch on its SW side. IC 1795 is the fainter nebula left of NGC 896 and right of the Heart’s apex. Finally, at the bottom of the photo, just left of center are a few stars that make up the sparse open cluster Markarian 6 (brightest star at magnitude 8.44). |
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