The Heart Nebula and SNR HB3
The famous and fabulous Heart Nebula in Cassiopeia dominates this frame but my target was actually the very faint supernova remnant (SNR) HB3 visible as wisply blue and red tendrils in the lower right quadrant of the frame. This widefield shot was taken with a William Optics Redcat51 telescope and an ASI2600MC Pro camera. It is an integration of over 20 hours data shot with an Optolong L-eXtreme filter and a further 6 hours with a UV-IR block. The SNR is much fainter than I had hoped and the low altitude above the Northern horizon reached by these nebulae from my low latitude location in Thailand may be a factor. All post-processing was carried out in PixInsight.
The Heart Nebula and SNR HB3
The famous and fabulous Heart Nebula in Cassiopeia dominates this frame but my target was actually the very faint supernova remnant (SNR) HB3 visible as wisply blue and red tendrils in the lower right quadrant of the frame. This widefield shot was taken with a William Optics Redcat51 telescope and an ASI2600MC Pro camera. It is an integration of over 20 hours data shot with an Optolong L-eXtreme filter and a further 6 hours with a UV-IR block. The SNR is much fainter than I had hoped and the low altitude above the Northern horizon reached by these nebulae from my low latitude location in Thailand may be a factor. All post-processing was carried out in PixInsight.