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APOD: Dark Ball in Inverted Starfield (2022 Nov 06)
Posted: Sun Nov 06, 2022 4:10 am
by APOD Robot
Dark Ball in Inverted Starfield
Explanation: Does this strange dark ball look somehow familiar? If so, that might be because it is our Sun. In the featured image from 2012, a detailed solar view was captured originally in a
very specific color of red light, then rendered in black and white, and then
color inverted. Once complete, the resulting image was added to a
starfield, then also color inverted. Visible in the image of the Sun are
long light filaments, dark active regions,
prominences peeking around the edge, and a
moving carpet of hot gas. The surface of our
Sun can be a busy place, in particular during
Solar Maximum, the time when its surface
magnetic field is wound up the most. Besides an
active Sun being so picturesque, the
plasma expelled can also become
picturesque when it impacts the
Earth's magnetosphere and creates
auroras.
Re: APOD: Dark Ball in Inverted Starfield (2022 Nov 06)
Posted: Sun Nov 06, 2022 5:44 am
by Ann
This is a fascinating-looking inverted portrait of the Sun and the stellar background. I like it!
Ann
Re: APOD: Dark Ball in Inverted Starfield (2022 Nov 06)
Posted: Sun Nov 06, 2022 1:01 pm
by orin stepanek
Reminds me of early black and white photograph negatives!
The three dog pack!
Re: APOD: Dark Ball in Inverted Starfield (2022 Nov 06)
Posted: Sun Nov 06, 2022 7:27 pm
by LuigiF
As far as I remember one of the rules imposed in the past for a candidate APOD was that the compositions were forbidden.
I’m missing something
Re: APOD: Dark Ball in Inverted Starfield (2022 Nov 06)
Posted: Sun Nov 06, 2022 7:32 pm
by Chris Peterson
LuigiF wrote: ↑Sun Nov 06, 2022 7:27 pm
As far as I remember one of the rules imposed in the past for a candidate APOD was that the compositions were forbidden.
I’m missing something
No such rule exists, or ever did. Nor should it.
Re: APOD: Dark Ball in Inverted Starfield (2022 Nov 06)
Posted: Sun Nov 06, 2022 8:01 pm
by rstevenson
I haven’t found any way to track down the step by step images that are mentioned in the description. Even the imager credit, Jim Lafferty, is not linked. Does anyone know more about the image and where such info might be found?
Rob
Re: APOD: Dark Ball in Inverted Starfield (2022 Nov 06)
Posted: Sun Nov 06, 2022 8:18 pm
by Chris Peterson
rstevenson wrote: ↑Sun Nov 06, 2022 8:01 pm
I haven’t found any way to track down the step by step images that are mentioned in the description. Even the imager credit, Jim Lafferty, is not linked. Does anyone know more about the image and where such info might be found?
The problem is that this is a repeat of a ten-year-old APOD. The original,
https://apod.nasa.gov/apod/ap121015.html, did have links. But those links are now dead. He has an AstroBin presence,
https://www.astrobin.com/users/Jim_Laff ... llections/, so maybe you could contact him.
Re: APOD: Dark Ball in Inverted Starfield (2022 Nov 06)
Posted: Sun Nov 06, 2022 8:24 pm
by LuigiF
Chris Peterson wrote: ↑Sun Nov 06, 2022 7:32 pm
LuigiF wrote: ↑Sun Nov 06, 2022 7:27 pm
As far as I remember one of the rules imposed in the past for a candidate APOD was that the compositions were forbidden.
I’m missing something
No such rule exists, or ever did. Nor should it.
It still remains a composition and time ago one of my pictures was questioned for this reason
Re: APOD: Dark Ball in Inverted Starfield (2022 Nov 06)
Posted: Sun Nov 06, 2022 8:42 pm
by johnnydeep
I was wondering myself if the image of the sun ended up being inverted twice as implied by the wording in the text, or only once. The star field was clearly only inverted once.
Re: APOD: Dark Ball in Inverted Starfield (2022 Nov 06)
Posted: Sun Nov 06, 2022 9:35 pm
by rstevenson
I tried Astrobin but saw no links to contact him, perhaps because I’m not a member there. Thanks anyway, Chris.
Rob
Re: APOD: Dark Ball in Inverted Starfield (2022 Nov 06)
Posted: Sun Nov 06, 2022 10:01 pm
by johnnydeep
rstevenson wrote: ↑Sun Nov 06, 2022 9:35 pm
I tried Astrobin but saw no links to contact him, perhaps because I’m not a member there. Thanks anyway, Chris.
Rob
IF you really wanted to, it looks like you
could sign up with a free trial to add a comment and ask a question about that particular shot:
https://www.astrobin.com/6wja1m/?nc=collection&nce=2144
Re: APOD: Dark Ball in Inverted Starfield (2022 Nov 06)
Posted: Sun Nov 06, 2022 10:32 pm
by heehaw
I do like these transformations, because it reminds us that our conventional view of 'the universe' is partial, if that.
Re: APOD: Dark Ball in Inverted Starfield (2022 Nov 06)
Posted: Mon Nov 07, 2022 5:13 am
by Ann
orin stepanek wrote: ↑Sun Nov 06, 2022 1:01 pm
black_kitten___colour_invert_drawing_by_naiengele-d6zmjsh.jpg
darksun_lafferty_960.jpg
Reminds me of early black and white photograph negatives!
Document.jpg
The three dog pack!
Orin, next time you make a post, you are going to have a very interesting number of posts here at Starship Asterisk*!
Ann
Re: APOD: Dark Ball in Inverted Starfield (2022 Nov 06)
Posted: Mon Nov 07, 2022 2:41 pm
by orin stepanek
Ann wrote: ↑Mon Nov 07, 2022 5:13 am
Orin, next time you make a post, you are going to have a very interesting number of posts here at Starship Asterisk*!
Ann
Hi Ann; I guess it should be my lucky day then!
Re: APOD: Dark Ball in Inverted Starfield (2022 Nov 06)
Posted: Mon Nov 07, 2022 3:02 pm
by johnnydeep
orin stepanek wrote: ↑Mon Nov 07, 2022 2:41 pm
Ann wrote: ↑Mon Nov 07, 2022 5:13 am
Orin, next time you make a post, you are going to have a very interesting number of posts here at Starship Asterisk*!
Ann
Hi Ann; I guess it should be my lucky day then!
Maybe not in China though - from
https://pagodaprojects.com/lucky-and-un ... -in-china/
• Seven — This is an unlucky number in Chinese. It is considered ghostly. The seventh month of the Chinese calendar is also called the “Ghost Month”. Activities during the month would include preparing ritualistic food offerings, burning incense, and burning joss paper, a papier-mâché form of material items such as clothes, gold and other fine goods for the visiting spirits of the ancestors. Elaborate meals (often vegetarian meals) would be served with empty seats for each of the deceased in the family treating the deceased as if they are still living During the month, the gates of hell are said to be open so ghosts and spirits are permitted to visit the living realm
Re: APOD: Dark Ball in Inverted Starfield (2022 Nov 06)
Posted: Mon Nov 07, 2022 3:33 pm
by orin stepanek
johnnydeep wrote: ↑Mon Nov 07, 2022 3:02 pm
orin stepanek wrote: ↑Mon Nov 07, 2022 2:41 pm
Ann wrote: ↑Mon Nov 07, 2022 5:13 am
Orin, next time you make a post, you are going to have a very interesting number of posts here at Starship Asterisk*!
Ann
Hi Ann; I guess it should be my lucky day then!
Maybe not in China though - from
https://pagodaprojects.com/lucky-and-un ... -in-china/
• Seven — This is an unlucky number in Chinese. It is considered ghostly. The seventh month of the Chinese calendar is also called the “Ghost Month”. Activities during the month would include preparing ritualistic food offerings, burning incense, and burning joss paper, a papier-mâché form of material items such as clothes, gold and other fine goods for the visiting spirits of the ancestors. Elaborate meals (often vegetarian meals) would be served with empty seats for each of the deceased in the family treating the deceased as if they are still living During the month, the gates of hell are said to be open so ghosts and spirits are permitted to visit the living realm
Hmmm! OK; glad I'm not Chinese Then!
