Celestial hemisphere:  Northern  ·  Constellation: Triangulum (Tri)  ·  Contains:  IC 131  ·  IC 132  ·  IC 133  ·  IC 135  ·  IC 136  ·  IC 137  ·  IC 142  ·  IC 143  ·  M 33  ·  NGC 588  ·  NGC 592  ·  NGC 595  ·  NGC 598  ·  NGC 604  ·  PGC 1866378  ·  PGC 1867918  ·  PGC 1871783  ·  PGC 1876404  ·  PGC 1883033  ·  PGC 1883861  ·  PGC 1886457  ·  PGC 1886693  ·  PGC 1889040  ·  PGC 1890526  ·  PGC 1896335  ·  PGC 1902548  ·  PGC 1916717  ·  PGC 1920142  ·  PGC 1924451  ·  PGC 1924979  ·  And 47 more.
M33 Galaxy in Triangulum, Jaimie Thomas
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M33 Galaxy in Triangulum

M33 Galaxy in Triangulum, Jaimie Thomas
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M33 Galaxy in Triangulum

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I took this photo on my third night out trying astrophotography. The session was in my backyard, using an Optolong L-eXtreme filter and C925 EdgeHD with Hyperstar v4 at f2.2. Total integration time 189 minutes using 20s subs. I used 100 bias frames and 40 dark frames, no flats. I used Gradient Xterminator in Photoshop to remove a gradient, and the Topaz DeNoise AI plugin to remove some noise. My polar alignment and focus was better this night than on my first and second nights out.

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M33 Galaxy in Triangulum, Jaimie Thomas