<a href="https://en.wikipedia.org/wiki/Elephant%27s_Trunk_Nebula" class="extiw" title="w:Elephant's Trunk Nebula">Elephant's Trunk</a> in classic Hubble Palette (Ha/OIII/SII) by amateur astronomer Chuck Ayoub.  Selected as NASA Astronomy Picture of the Day on August 16, 2019.
<p><br>
Target:<br>
Elephant's Trunk Nebula (IC 1396)<br><br>
Imaging Telescope: <br>
Explore Scientific 127mm ED Refractor (952 focal length)<br><br>
Focuser:  <br>
MoonLite 2.5" Focuser with Motor Auto-Focus<br><br>
Field Flattener:<br>
HoTech 2" SCA Field Flattener<br><br>
Mount: <br>
Celestron CGX<br><br>
Polar Alignment: <br>
QHYCCD PoleMaster<br><br>
Imaging Camera: <br>
ZWO ASI1600MM-Cool<br><br>
Frames:<br><br>
Astronomik Ha: 100x240" (gain: 139, offset: 21)<br>
Astronomik OIII: 130x240" (gain: 75, offset: 15)<br>
Astronomik SII: 111x240" (gain: 139, offset: 21)<br><br></p>
Integration: 22.73 hours
<a href="//commons.wikimedia.org/wiki/User:Cpayoub" title="User:Cpayoub">Chuck Ayoub</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>