The Tulip Nebula (Sh2-101) is in the constellation Cygnus, the Swan, and is an emission nebula about 6,000 light years from Earth with a diameter of about 70 light years. The name of this emission nebula stems from the fact that it has the form of a tulip when images in narrowband -- which I’ve tried to accentuate in this photo, it being my wife’s favorite flower.
Capture Date: 10/2, 10/3
Celestron EdgeHD 800 w/0.7x reducer (fL = 1422mm)
ASI2600MC Pro (OSC camera)
Antlia ALP-T 2” mounted 5nm Dual Narrowband Filter, Antlia RGB Triband Ultra Filter (for stars)
ZWO AM5 mount with guiding via Celestron OAG and ASI174MM mini
Dual Narrowband Ha/OIII Filter Light Frames: 45 x 300s [Total Exposure 3:45; Average Moon illumination ~84%]
RGB Frames for Stars [ Total Exposure 0:30; Captured before moon rose on 10/3]
All light frames calibrated with dark, flat, and bias frames
Pre- and post-processed in PixInsight
Additional post-processing in Photoshop for exposure adjustments and generation of reduced size jpeg
