My WordPress Blog
Hi all, A new version (3rd, one in wide field and two in HiRes) of Messier 17 has been uploaded. I finally decided to capture this nebula with the usual (and very reliable) CDK 20″. The image was taken in narrowband (Halpha and OIII, mapped to natural color). You can find it at: Messier 17. …
Continue reading “A new version of Messier 17 has been uploaded”
Hi all, I promised another post when these new bubbles had been confirmed. Three astrophotographers, Andrealuna Pizzetti, Tel Lekatsas and Christian Sasse have, independently, taken Ha pictures of this region, in order to try to confirm the existence of this bubbles. The integration of all their 19x600s images (see image here), taken with another 20″ …
Continue reading “IC 2220 surrounding bubbles. A confirmation”
Hi all, A new image has been uploaded. This time, a planetary nebula, NGC 6302, also called the Bug Nebula or the Butterfly nebula, has been the chosen object. This nebula presents several unique characteristics, such an extremely hot central white dwarf (250,000 ºC, one of the hottest recorded). The central star had not been …
Continue reading “An image of NGC 6302, the Bug Nebula, has been uploaded”
Hi all, A new image has been uploaded. IC 2220 is an unusual reflection nebula, it is not blue but reddish orange. This is due to the fact that the nebular gas is reflecting the light of a Red Giant. But this image has an additional object around IC 2220, a bubble-like nebulosity that is …
Continue reading “A new, and special, image has been uploaded”
Hi all, This time, the image that has been uploaded depicts a galaxy. NGC 4945 is not that far away, 11 Mly and, therefore, it shows a great deal of detail. It definitely resembles NGC 253 due to its dust lanes and angle of vision from here. This galaxy has a very active nucleus (it …
Hi all, A new image has been uploaded. This time, it is a very young open cluster (NGC 3293) surrounded by the nebulosity that originated it. Remarkable in this nebulosity is that the highly radiating stars in the cluster have not yet had enough time to carve/modify the nebulosity’s beautiful filamentary structure. You can find …
Hi all, After uploading yesterday the beautiful NGC 6164, today we have another nebula that is also the result of the strong mass ejection by a massive star. This nebula has a completely different shape compared with NGC 6164, but the mechanism of formation is very similar. Neither of these nebulae are planetary nebulae, despite …
Hi all, A new image, this time of the beautiful emission nebula NGC 6164 and NGC 6165 has been uploaded. This is a beautiful nebula that is the result of a massive ejection of gas (in two steps) from the central star HD 148937 (40 solar masses). This star belongs to an infrequent star type (O6.5f), …
Continue reading “A close-up image of NGC 6164-5 has been uploaded”
Hi all, I have uploaded a new image. In fact this image had been taken a year ago and should have been part of a 2×2 mosaic of the Eta Carina nebula. As I finally decided not to pursue this larger mosaic, but I liked this region, I have processed it and posted in the …
Hi all, Another joint project has been uploaded. This time, Aleix Roig and I have joined to get a wide field image (taken with Aleix’s FSQ85) of NGC 2237 (The Rosette) enhanced with higher resolution images taken with the CDK 20″. The different filters have been mapped to natural color. You can find this …
