The Eagle Nebula

This is an image of M16, the Eagle Nebula in Serpens. Taken through the WO GT-102, it was put together using 10 x 5min RGB images shot on an Atik 460ex SOC camera, and 12 x 10min through a hydrogen-alpha filter on an Atik One.

A Faint Planetary Nebula

Something different last night… Instead of going for the brightest non-stellar object in Hercules, I tried one of the faintest, inspired by the picture of it in this month’s Astronomy Now. This is planetary nebula Abell 39 – 25 x 10min frames with the Atik 460ex OSC. The small edge-on spiral galaxy visible at about 10 o’clock relative to the nebula is mag 16.6 PGC58246.

Edit: A couple of nights later I acquired 17 x 10min through an OIII filter, and combined them with the RGB image shown above. This made quite a difference, and made the nebula much more apparent!


Following on from the recent image of M106, here’s a deeper image captured with the Atik 460ex colour camera and GT-102. Its 17 x 10min exposures in total.

Spring Galaxies

Here are a couple of images from last night. First up is face-on spiral galaxy NGC3344, possibly the most interesting object in the constellation of Leo Minor. William Optics 102GT with Atik One, 6 x 10min luminance exposures before the moon came up, and 6 x 5 min R, G and B binned 2×2.

Then there’s a quick look at M106 in Canes Venatici. This was 6 x 5 min R, G and B binned 2×2 after the moon had risen, and is a bit noisy, but the area would be worth revisiting when the sky’s a bit darker, as the annotated image shows.

More Jellyfish…

Last night I was able to add some more SII and OIII frames to the image of the Jellyfish Nebula I posted recently. This has helped with the background noise, and a little deconvolution in PixInsight sharpened the image up considerably. This is now 20 Ha, 12 SII and 11 OIII frames of 10min each.



Shown below is a bi-colour image of IC410 in Auriga, sometimes referred to as the Tadpole Nebula, which was composed from 10 x 10min exposures each of H-alpha and OIII.

Celestial Jellyfish

This is a narrowband image of IC443 in Gemini, aka the Jellyfish Nebula. Taken through a WO GT-102 with an Atik One 6.0, it’s put together from 20 x 10min H-alpha, 6 x 10 min OIII and 6 x 10min SII. The nebula is notable for its quite weak OIII emission, but it’s really quite strong in SII. R=Ha, G=SII, B=OIII.