Visibility V / V
The fog of Eeta Carinae, or NGC 3372, was already visible to the naked eye as a hazy spot in the sky. However, the true beauty and proportions of the fog were revealed with a telescope. The fog is quite bright (3 magnitudes) and huge in size, its visual size is about 30 ', which is about the diameter of one full moon!
The mist itself is a mosaic of bright emission mist and dark mist passing through it. The dark dark line divides the fog into two parts, the northernmost of which is the brightest part of the fog. This brightest part of the nebula is a triangular nebula area with the apex of the triangle pointing towards the northwest. The southern half of the fog is somewhat dimmer, and the dark, dark fog lines further divide the southern half into three parts. The OIII filter was helpful in detecting fog, even though the fog is just fine on the filter.