The Eagle Nebula, SHO
July 3rd, 2017
My first full narrowband image! The ASI 1600 did great again (with low integration), although my sulfur channel was very weak. I guess that may be common, I’m not really sure since this is my first try. I will say that I did find the right color balance for me, which can be challenging. The hydrogen channel overwhelms everything else, making the image very green. A popular solution to this makes the entire image either yellow or blue, but I’m not a huge fan of that either. I found the perfect mixture for me to be a red channel of 60% SII and 40% Ha, along with some careful color balance adjustments.
Object details: The Eagle nebula is an emission nebula in Sagittarius, consisting primarily of hydrogen. The famed pillars of creation can be seen in the center (brought to fame by the 1995 Hubble image). These pillars are dense gas and dust actively forming new stars, hence the name.
400mm camera lens vs Hubble (not much competition)
Captured on: June 29, July 1st and 2nd 2017
Canon 200mm F/2.8L w/ 2x, 400mm F/7.1
ZWO ASI 1600mm-C
Red: ZWO 7nm SII filter(1.25″), 12x300s, -10C, Unity Gain
Green: ZWO 7nm Ha filter (1.25″), 24x300s, -10C, Unity Gain
Blue: ZWO 7nm OIII filter(1.25″), 12x300s, -10C, Unity Gain
Total Aquisition of 4hrs
PS, DSS, PHD2, SGP
Thanks for looking!