Astrophotography

[wsbrown]

M8, the Lagoon Nebula

Full Resolution here:
https://www.astrobin.com/full/kujoew/0/

 

[SmntCra]

All of these are so phenomenal! Thanks for sharing!

 

[wsbrown]

First pic with new dedicated astro camera. The Cygnus Wall in simulated Hubble palette.

Full resolution:
https://www.astrobin.com/full/2drk5p/0/?nc=user

 

[HERMET]

I personally really look forward to and really enjoy your postings.
We're so focused on events on earth that we forget about just how staggeringly huge and awesome the universe really is.

 

[Deleted member 79987]

The Cygnus Wall in bi-color

Can you explain that a bit more? I'm guessing the photo is not what the naked eye would see if you were out there in space, away from any sort of pollution or obstruction.

 

[wsbrown]

No, bi-color H-O-O describes the source of the signal and how it is assigned. H is for emission from Hydrogen Alpha and O is Oxygen III.
Color is assigned in RGB: Red- H-Alpha, Green- Oxygen III, Blue- Oxygen III
H-Alpha makes up the vast majority of emission nebula, so it is the strongest signal. The nebula would have a slight red tint to the human eye. My camera normally takes full color pictures using UV/IR cut filter that will capture visible color and H-Alpha with OIII to bring out detail in nebulosity. With a full moon out, it would have washed out a full color pic with noise, so the duo-narrowband filter only "sees" H-Alpha and OIII and makes a cleaner image, albeit using only two "false" color sources.

 

[wsbrown]

Can you explain that a bit more? I'm guessing the photo is not what the naked eye would see if you were out there in space, away from any sort of pollution or obstruction.

This is a pretty good example of what actual color should look like, the Cygnus Wall area is just off frame in the lower left, but it is all part of the North American / Pelican Nebula.

https://www.astrobin.com/full/stjgkx/0/

 

[HERMET]

No, bi-color H-O-O describes the source of the signal and how it is assigned. H is for emission from Hydrogen Alpha and O is Oxygen III.
Color is assigned in RGB: Red- H-Alpha, Green- Oxygen III, Blue- Oxygen III
H-Alpha makes up the vast majority of emission nebula, so it is the strongest signal. The nebula would have a slight red tint to the human eye. My camera normally takes full color pictures using UV/IR cut filter that will capture visible color and H-Alpha with OIII to bring out detail in nebulosity. With a full moon out, it would have washed out a full color pic with noise, so the duo-narrowband filter only "sees" H-Alpha and OIII and makes a cleaner image, albeit using only two "false" color sources.

I have no idea what you just said but it's cool nonetheless.

 

[wsbrown]

I took this photo of the Lagoon Nebula a couple of weeks ago. I was reading a post on an astronomy forum where another person took a picture of the Lagoon recently and pointed out two asteroids in his photo and I thought the small streaks looked familiar. The asteroids are (64) Angelina and (974) Lioba. This picture is around 1.5 hours worth of exposure. A satellite would streak all the way across the frame in a few seconds.
Tab has notes to point out asteroids, full resolution is plain image.

Full resolution:
https://www.astrobin.com/full/8ravwf/0/

 

[fastfish66]

Im about two miles out of Baxley, SE GA. Pretty dark skies, I get behind my shop to avoid street lights in my yard. Baxley's light pollution foot print is considerably smaller than the Atlanta area or other large cities[/QU

I can resolve individual stars for most of the larger/closer globulars. I havent imaged one in a while, but it is on my to do list. M13 is available spring / early summer, so it will probably be next. I am a fan of globular clusters, especially viewing visually through a scope.

My son is Westcliff,Co. 9,000 ft. up in the rockies living off grid.His area is a desigated dark zone,no lights on outside and the air is so clear people can view space.