Heart Nebula - Blog Posts
IC1805 è una nebulosa diffusa in associazione ad un ammasso aperto, visibile nella costellazione di Cassiopea, verso il confine con la Giraffa. Fu scoperta nel 1787 da William Herschel ed è conosciuta come "Nebulosa Cuore".
I LOVVE SPACE SMMM‼️‼️
Im done wth it
This is the heart nebula (or at least as much of it as I can take with my setup without doing a mosaic) also known as IC 1805 or NGC 896. It is around 7 000 light years from us, in the constellation Cassiopeia. Despite its distance to us it still appears about twice as big as the moon in the sky, which speaks volumes when it comes to its actual size (about 200 light years in diameter).
This being an emission nebula its light mostly comes from gasses ionised by nearby stars.
This nebula also has an open cluster at it's center (a bit closer to us than the rest of the nebula), Melotte 15:
This cluster is bout 1,5 million years old which is very young for such a stellar object. It is composed a a few very heavy and bright stars and many fainter lighter stars.
The starless version :
(Image taken using a CarbonStar 150/600 newtonian telescope with a 0.95 coma corrector, ZWO ASI294 monochrome camera and Baader 6.5nm narrowband filter. 25x300s for the Ha filter, 26x300s for the SII filter and 26x300s for the OIII filter, total imaging time 6h 25min, stacking and processing done in PixInsight. Photo taken mid-January) Other versions with a different colour combinations (a bit less pleased of how they turned out).
If you want to see the nebula in its entirety, you can check out this NASA Astronomy picture of the day made by Adam Jensen.