Close-up of CG 20 and CG 21

20-inch keller-cassegrain, NA, astrofotografie, astronomie, astronomy, astrophotography, cg20, cometary globule, dark nebula, hakos, hakos guest farm, ias, ias observatory, ias observatory hakos, khomas, musca, namibia, world
CG 20 – Cometary Globule in Musca – OSC v1
20-inch keller-cassegrain, NA, astrofotografie, astronomie, astronomy, astrophotography, cg21, cometary globule, dark nebula, hakos, hakos guest farm, ias, ias observatory, ias observatory hakos, khomas, musca, namibia, world
CG 21 – Cometary Globule in Musca – OSC v1

More close-ups with the longer focal length of the Cassegrain (4500 mm) at the IAS Hakos Observatory, Namibia, portraying cometary globules CG 20 and 21.

And of course adding to my growing catalog of cometary globules.

More details at Astrobin.

IAS – Internationale Amateursternwarte e.V.– Hakos Observatory, Namibia

IAS 20″ Philipp Keller Cassegrain, 4500mm, f/9, Liebscher mount, ASI2600MC Duo
Data acquisition: N.I.N.A
Data calibration/integration: PixInsight WBPP
Image processing: PixInsight, BlurXTerminator, StarXTerminator, NoiseXTerminator, Lightroom

CG 20: 72 x 300s, bin 2×2, gain 100, offset 50, -5C, 30 flats, 50 bias, 30 darks
Total time: 21600s / 6h00

20-inch keller-cassegrain, NA, astrofotografie, astronomie, astronomy, astrophotography, cg20, cometary globule, dark nebula, hakos, hakos guest farm, ias, ias observatory, ias observatory hakos, khomas, musca, namibia, world
CG 20 – Cometary Globule in Musca – OSC v1 Annotated

CG 21: 45 x 300s, bin 2×2, gain 100, offset 50, -5C, 30 flats, 50 bias, 30 darks
Total time: 13500s / 3h45

20-inch keller-cassegrain, NA, astrofotografie, astronomie, astronomy, astrophotography, cg21, cometary globule, dark nebula, hakos, hakos guest farm, ias, ias observatory, ias observatory hakos, khomas, musca, namibia, world
CG 21 – Cometary Globule in Musca – OSC v1 Annotated