More on-site OSC data from the IAS Hakos observatory, the reflection nebula IC 4601 in the constellation Scorpius.
More details at Astrobin.
Continue readingReflection Nebula IC 4601
Tag Archives: Scorpius
Spider Globular Cluster
More processed OSC data with the ASI 2600 MC Duo and the IAS 20″ telescope AK3, featuring the globular cluster Messier 4 aka NGC 6121.
Notable change to my previously shown OSC workflow: I used “K2V star” as the white reference for SpectrophotometricColorCalibration. Standard “Average spiral galaxy” yielded stars, which were too “golden” for my taste, thus this bluer/colder rendition.
See also at Astrobin.
Continue readingGum 68
Took me a while to create something with presentable colors from the narrowband data of this obscure nebula in Scorpius, the previous H-alpha black and white version was easier.
This is a bicolor image with R=H-alpha, G=SII, B=SII and mainly H-alpha with a bit of SII used as luminance, plus calibrated RGB stars screened on-top.
More details at Astrobin.
Continue readingDark Tower
A lesser known object, the Cometary Globule GN 16.43.7.01, nick-named Dark Tower gained some popularity, especially since ESO’s publication of an image taken with the VLT.
More details at Astrobin.
Continue readingBW Nebula
Some black and white H-alpha while the moon is more and more occupying the night.
Details at Astrobin.
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