Starship Asterisk*

I wish we had somethinng better than GAIA to gauge a star's distance from us.
Say some way to imply a star's angle diameter from weak blinking caused by interstellar gas fluctuations or rogue planetoids nanolensing

can a dark dusty pillar last 10 million years to drift a thousand ly away from the star that sculpted it?

I wonder where the sun pole is. At 20 minutes past twelve o'clock? https://scontent.fhen2-1.fna.fbcdn.net/v/t1.0-9/123353191_3398425753611845_2935760074361404071_o.jpg?_nc_cat=100&ccb=2&_nc_sid=dbeb18&_nc_eui2=AeHz2uvYFvl3CwXQ32aChIzv3XnequLRME7ded6q4tEwTtKz6S-IWMDMPZGstGmjPECfoslNafQbM-...

Still there is a difference between the cold, or blue and warm, or orange part of the low-sun sky on Earth. And the same separation mechanism gives unmistakable colors to any scattering nebula once we set the angles and the intensity of the scattering. Do I get it right: if an illuminating star is (...

I wonder whether the foreground narrow cone is a jet from a forming star in the depth of the dense dust dome. I mean, a jet that is getting narrower to the end of it. Could it be sharpened by the stellar wind or radiation emitted by the main stars at the center of the APOD picture? The same kind of ...

I begin to see the picture.
A cloud is vulnerable… A Herbig-Haro jet punches right through it, a visiting star rumples it up.
A dense Bok globule will stay cool for a while but evaporate eventually if boiled by several large stars long enough.

So I guess it is at least possible that we are seeing the remains of a hole punched through the nebula by a Herbig-Haro jet emitted by a not yet fully formed star deep inside the nebula. Either that, or a star that was just passing by plunged right through the nebula, leaving a hole behind. Ann wow...

I wonder what on Earth is making the cone of light in the bottom right corner https://scontent.fhen2-1.fna.fbcdn.net/v/t1.0-9/122607445_3377825805671840_4118261237163859252_n.jpg?_nc_cat=101&ccb=2&_nc_sid=dbeb18&_nc_eui2=AeEU_2KXGFN6RwzuPRxUFNFqdkXPENU54-J2Rc8Q1Tnj4g7YPMOxTkzFFw8AhHzmFTc...

Ann wrote: ↑Sat Oct 24, 2020 9:25 am Well... I guess the night sky of 47 Tuc might look something like the picture at right.
Ann

I wonder why does that starry sky look like a view from a flattening distance.
I would expect some close stars to shine as bright as Moon and be visible through daytime skyshine.

I'd say that the Hα is assigned to red, and the O[III] is assigned approximately equally to the green and blue (thus, cyan). That is consistent with the image histogram. So white will occur wherever the intensity from the two source channels is the same (subject to whatever aesthetic color balancin...

What does make RGB white here?
Frames:
• red channel is Hα filtered with Chroma 3nm, integrated across 10.0 hours
• blue channel is OIII filtered with Chroma 3nm, integrated across 10.0 hours

So what is white?

I am trying to read this now: "Spectral type: M0 D ~ " It's red (=M, the last and the most red in the series of Oh Be A Fine Girl Kiss Me). It's not as red as they come (M0 ≈ K9, or photospheric temperature of 3700°K). It's prone to flares (~) "Parallaxes (mas): 2.1622 [0.0359]" ...

3) What's the orange spike/colored star towards bottom left corner ?