#hubblepalette — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #hubblepalette, aggregated by home.social.
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NGC 281 - the Pacman Nebula in Cassiopeia. A return to a familiar object, this time with a new setup and considerably more integration time. In the Hubble palette (HSO), the dark Bok globules stand out with particular clarity - dense dust structures being eroded by the radiation pressure of the young cluster IC 1590, while possibly hiding new star formation deep within.
https://adfr.io/astro/20260407_ngc281
#Astrophotography #Narrowband #NGC281 #PacmanNebula #Cassiopeia #HSO #HubblePalette #astrodon
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Sh2-171 – The Question Mark Nebula in Cepheus. A two-panel mosaic covering over 100 light-years of active star formation, powered by Berkeley 59 — a cluster just 2 million years old. Its O5V star BD+66 1673 burns at 45,000 Kelvin, sculpting the dark pillars visible throughout the frame. Processed in Hubble Palette (HSO).
https://adfr.io/astro/20260310_sh2-171
#Astrophotography #Narrowband #Sh2171 #NGC7822 #Cepheus #HubblePalette #DeepSky #Nebula #astrodon #astrophoto #deepsky
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Here is a lesser-known nebula: #NGC6820, and the open cluster #NGC6823 .
This shot covers about 1 degree by 1.5 degrees, and is the result of about five hours of data collection over the course of three nights, using two #DwarfII smart telescopes.
1 hour's worth is without any filters, 1 hour is with a Svbony CLS light pollution filter, and 3 hours with a OIII/HII filter.
Then I fed the 1237 frames into #Siril and started crunching numbers. 72 frames were not usable, leaving me with 1165. These I stacked, and then ran through the "Hubblematic" #HubblePalette emulator and DSA Star Reduction scripts. Finally I did some additional reprocessing and smoothing with #GooglePhotos.
Most images of the area cover the cluster, rather than the rather large area of nebulosity that surrounds it, and just concentrate on the (admittedly very pretty) nebula around the cluster. This shot covers a much wider field, and even it does not show the true extent of this faint but magnificent region.
#Astrometry by Astrometry.net .
