Celestial hemisphere:  Northern  ·  Constellation: Hercules (Her)  ·  Contains:  HD144149  ·  IC 1170  ·  IC 1172  ·  IC 1173  ·  IC 1176  ·  IC 1178  ·  IC 1179  ·  IC 1181  ·  IC 1182  ·  IC 1183  ·  IC 1184  ·  IC 1185  ·  IC 1186  ·  IC 1188  ·  IC 1189  ·  IC 1190  ·  IC 1192  ·  IC 1193  ·  IC 1194  ·  NGC 6039  ·  NGC 6040  ·  NGC 6041  ·  NGC 6042  ·  NGC 6043  ·  NGC 6044  ·  NGC 6045  ·  NGC 6047  ·  NGC 6050  ·  NGC 6054  ·  NGC 6055  ·  And 2 more.

Image of the day 11/02/2020

Getting plate-solving status, please wait...
    Hercules Galaxy Cluster - Abell 2151, Howard Trottier
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    Hercules Galaxy Cluster - Abell 2151

    Image of the day 11/02/2020

    Getting plate-solving status, please wait...
      Hercules Galaxy Cluster - Abell 2151, Howard Trottier
      Powered byPixInsight

      Hercules Galaxy Cluster - Abell 2151

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      Description

      This was the very first of my images that made it into APOD, which happened only after many, many kicks at the can! 

      Please kick on the "Original" thumbnail on the right to bring up the actual, full resolution image (for some reason, on APOD the image is displayed only at a significantly reduced scale).

      This is the third image that I completed using my new "Final Frontier Telescope". It is a combination of just over 10 hours of subframes, which were shot between mid-July and mid-August of this year (260 minutes luminance and 350 minutes RGB, all un-binned). I reduced the image size for final presentation by 75%, since collimation and mount tracking had not yet been fully optimized when the raw subs were acquired. The final plate scale is about 0.62"/pixel, and the angular image size after cropping is about 28' x 30'.

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        Hercules Galaxy Cluster - Abell 2151, Howard Trottier
        Original
      • Final
        Hercules Galaxy Cluster - Abell 2151, Howard Trottier
        E

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      Hercules Galaxy Cluster - Abell 2151, Howard Trottier