Difficult processing with these data: separating stars and galaxy with StarXTerminator doesn’t work well here, too many artefacts. So all the stretching was done with the starfull images, with just a bit of star reduction on L, to preserve the many little mostly blue stars in the arms of NGC 300.
More details at Astrobin.
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It took a while, but now round three of the Squares made it to my website. The images from 2022 to 2024 were already published as a photobook.
Es hat ein Weilchen gedauert, jetzt ist die dritte Runde der Squares auch hier auf der Website zu finden. Als Fotobuch sind die Fotografien von 2022 bis 2024 schon etwas länger verfügbar.
Complete series / komplette Serie: Photograpy > Projects > Squares 3
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SW-Bilder einer Kurzreise nach Genf mit Besuch des CERN Anfang Oktober 2016.
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Some impressions from a few days of late summer in Budapest, Hungary, September 2016. Not yet published on my website here.
See Photography > Travel > Budapest 2016 for the complete series.
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Some old narrowband data of the Helix was sitting for quite a while on my hard disk. Recently I started to adopt the “Foraxx” palette described in The Coldest Nights blog and used this technique with the SHO data, but combined both the SHO Foraxx and Bicolor Foraxx results, with a bit of RGB mixed in, and added RGB stars. Hope that the result isn’t too bad. ;-)
See an older post for a “classic” rendering of NGC 7293.
More details at Astrobin (70 % crop).
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After a looong time, a total lunar eclipse was visible from Cologne, Germany. The last time I photographed a lunar eclipse was back in 2019!
Nach laaanger Zeit war endlich wieder eine totale Mondfinsternis in Köln sichtbar. Das letzte Mal habe ich eine Mondfinstern 2019 fotografiert.
Local circumstances (local time = CEST):
20:01 Moonrise
20:11 Max eclipse
20:35 First sighting in Cologne, above a layer of light cirrus clouds
20:52 End of total eclipse
21:56 End of partial eclipse
22:55 End of penumbral eclipse
[Updated image]
Has been quite a while since I last imaged this large, beautiful spiral galaxy in the southern constellation of Sculptor, NGC 253 known as the Silver Dollar Galaxy, Silber Coin Galaxy, or just Sculptor Galaxy.
A lot of H-alpha data has been used, thus the rendition is different from the DSLR attempts back in 2016.
More Details at Astrobin.
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Continuing the with the cometary globules, here comes CG 11, also part of my growing catalog of CGs here at Gallery > Photography > Astrophotography > Cometary Globules.
More details at Astrobin. Also posted to Spektrum Leserbilder Astronomie.
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An assortment of nebulae in Sagittarius, very close to the well-photographed Lagoon, thus sort of completing the Lagoon footprint, which made me come up with this nickname.
This is a narrowband (SII, H-alpha, OIII) plus RGB image. For rendering the NB data, I used the “Foraxx” palette described in The Coldest Nights blog along with other techniques. Worked rather well, a pure SHO approach would yield a very green image. Stars are color-calibrated RGB.
Emission and reflection nebulae in this field: IC 1274/1275/4684/4685, NGC 6559
The strange object below and right of NGC 6559 is the planetary nebula PN M 1-41
(RA 18 09 30.10, DEC -24 12 26.0).
More details at Astrobin.
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Mondaufgang über der Schäl Sick am Kölner Rheinufer, einen Tag nach Vollmond unterwegs mit dem Team von Quarks – stay tuned. ;-)