Jackstar
28-07-2020, 06:29 PM
We had a few clear nights in succession a couple of weeks back. Not had any since though!
I got a few hours on Barnard 84. This is a dark nebula situated in Sagittarius. It gets called claw or dark scorpion, think i prefer the claw.
Dark nebula according to Wikipedia: are type of interstellar clouds (https://en.wikipedia.org/wiki/Interstellar_cloud) that are so dense that they obscure the visible wavelengths of light from objects behind them, such as background stars.
Dark clouds appear so because of sub-micrometre-sized dust particles, coated with frozen carbon monoxide (https://en.wikipedia.org/wiki/Carbon_monoxide) and nitrogen, which effectively block the passage of light at visible wavelengths.
You can also see lower left NGC 6440 a globular cluster
and just above middle to the left NGC 6445 a small planetary nebula.
capture details as follows:
Orion eon 115mm
Eq6r-pro
Guided
ASI2600
-10 gain 100
49 x 180s lights
darks
bias
captured with NINA
processed with APP
and finished in photoshop.
thanks again for looking
Jack
I got a few hours on Barnard 84. This is a dark nebula situated in Sagittarius. It gets called claw or dark scorpion, think i prefer the claw.
Dark nebula according to Wikipedia: are type of interstellar clouds (https://en.wikipedia.org/wiki/Interstellar_cloud) that are so dense that they obscure the visible wavelengths of light from objects behind them, such as background stars.
Dark clouds appear so because of sub-micrometre-sized dust particles, coated with frozen carbon monoxide (https://en.wikipedia.org/wiki/Carbon_monoxide) and nitrogen, which effectively block the passage of light at visible wavelengths.
You can also see lower left NGC 6440 a globular cluster
and just above middle to the left NGC 6445 a small planetary nebula.
capture details as follows:
Orion eon 115mm
Eq6r-pro
Guided
ASI2600
-10 gain 100
49 x 180s lights
darks
bias
captured with NINA
processed with APP
and finished in photoshop.
thanks again for looking
Jack