Category Archives: IAS

Oddball Planetary Nebula

20-inch keller-cassegrain, NA, astrofotografie, astronomie, astronomy, astrophotography, centaurus, fr2-8, hakos, hakos guest farm, ias, ias observatory, ias observatory hakos, khomas, namibia, pgc, pgc49877, planetarischer nebel, planetary nebula, world, zentaur
PGC 49877 / Fr 2-8 – Galaxy / Planetary Nebula in Centaurus – OSC v1

Imaged at the IAS Hakos Observatory, Namibia with the 20″ Philipp Keller Cassegrain at full focal length of 4500 mm, f/9, this oddball object is listed both as a galaxy (PGC 49877) and a planetary nebula (Fr 2-8).

Quoting from Planetary Nebulae in the Solar Neighbourhood: Statistics, Distance Scale and Luminosity Function by David John Frew

Fr 2-8 (Fr 1400-5102, AM 1357-504, LEDA 49877). This small nebula, about 2′ across, was found serendipitously from SHASSA field 057, while measuring a Hα flux from the nearby PN MeWe 2-4, and has been confirmed spectroscopically as a high-excitation PN, with the 2.3m MSSSO telescope. The position is coincident with the SIMBAD ‘galaxy’ AM1357-504 (Arp & Madore 1987). It had been independently noted as a PN by Cˆote et al. (1997), but no details were provided in their paper.

Interestingly enough, the team around IAS member Uwe Glahn observed this object visually at Hakos back in 2009.

More details at Astrobin.

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Cometary Globule CG 19

28-inch-newton, NA, astrofotografie, astronomie, astronomy, astrophotography, centaurus, cg19, cometary globule, dark nebula, gamsberg, gamsberg plateau, ias, ias observatory, ias observatory gamsberg, khomas, namibia, world, zentaur
CG 19 – Cometary Globule in Centaurus – OSC v1

Results from the second night at the IAS observatory on the Gamsberg plateau with the 28 inch Newtonian “Wolf-Peter-Hartmann-Teleskop”, adding to my growing catalog of cometary globules.

Alas, sky flats at dusk didn’t work well, so some of the dust struture seen here may be artefacts of the calibration and gradient removal.

More details at Astrobin.

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Galaxies and Supernova in Crater

28-inch-newton, NA, astrofotografie, astronomie, astronomy, astrophotography, crater, galaxy, gamsberg, gamsberg plateau, hoag-type galaxy, ias, ias observatory, ias observatory gamsberg, khomas, namibia, ngc, ngc3660, pgc, pgc1000714, spiral galaxy, world
NGC 3660, SN 2026cff, and PGC 1000714 – Galaxies and Supernova in Crater – OSC v1

First result from this year’s trip to Namibia, including two nights at the IAS observatory on the Gamsberg plateau using the mighty 28 inch Newtonian telescope for astrophotography. I came across this field of view when observing the supernova SN 2026cff in NGC 3660 with the IAS remote telescope and noticed the near-by, peculiar Hoag-type galaxy PGC1000714 with its ring structure.

More details at Astrobin.

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Cometary Globule CG 10

12-inch lacerta remote, NA, astrofotografie, astronomie, astronomy, astrophotography, cg10, cometary globule, dark nebula, hakos, hakos guest farm, ias, ias observatory, ias observatory hakos, khomas, namibia, puppis, remote observatories, remote sternwarten, world
CG 10 – Cometary Globule in Puppis- LHaRGB v1

Continuing with the CGs, this one took really loooong, from mid January to mid February. Alas, CG season is also rain season in Namibia. Good for the country, but not so much for astrophotography.

Part of the ever growing CG catalog here at Photography > Astrophotography > Cometary Globules.

As always, more details at Astrobin.

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Cometary Globules CG 15 and CG 16

12-inch lacerta remote, NA, astrofotografie, astronomie, astronomy, astrophotography, carina, cg15, cg16, cometary globule, dark nebula, hakos, hakos guest farm, ias, ias observatory, ias observatory hakos, khomas, kiel des schiffes, namibia, puppis, remote observatories, remote sternwarten, world
CG 15 and CG 16 – Cometary Globules in Puppis/Carina – LHaRGB v1

Another CG image, completed just after Christmas Day, showing CG 15 (lower right) in Puppis and CG 16 (upper left) in Carina. Two more for the growing catalog of CGs here.

More details at Astrobin coming soon.

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Sculptor Pinwheel Galaxy

12-inch lacerta remote, NA, astrofotografie, astronomie, astronomy, astrophotography, bildhauer, galaxy, hakos, hakos guest farm, ias, ias observatory, ias observatory hakos, khomas, namibia, ngc, ngc300, sculptor, sculptor pinwheel galaxy, spiral galaxy, world
NGC 300 – Sculptor Pinwheel Galaxy – LHaRGB v2

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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A Narrowband Helix

12-inch lacerta remote, NA, aquarius, astrofotografie, astronomie, astronomy, astrophotography, hakos, hakos guest farm, helix nebula, helixnebel, ias, ias observatory, ias observatory hakos, khomas, namibia, narrowband, ngc, ngc7293, planetarischer nebel, planetary nebula, sho, sii-ha-oiii, wassermann, world
NGC 7293 – Helix Nebula in Aquarius – SHORGB v1

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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