Comments and questions about the
APOD on the main view screen.
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Ann
- 4725 Å
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by Ann » Mon Feb 14, 2022 5:27 am
Nice image for Valentine's Day!

Thank you for ionizing the Heart Nebula for us, Melotte 15!
Ann
Color Commentator
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supamario
- Ensign
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by supamario » Mon Feb 14, 2022 12:25 pm
Did anyone notice the pink ring at the top of the image and if there is a designation for it?
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orin stepanek
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by orin stepanek » Mon Feb 14, 2022 2:07 pm
HeartB_Jensen_3925.jpg
.jpg
Happy Valentines Day Everyone!!!

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Orin
Smile today; tomorrow's another day!
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AVAO
- Science Officer
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- AKA: multiwavelength traveller
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Post
by AVAO » Mon Feb 14, 2022 2:49 pm
supamario wrote: ↑Mon Feb 14, 2022 12:25 pm
Did anyone notice the pink ring at the top of the image and if there is a designation for it?
Good question!
WeBo 1 is a planetary nebula in the Heart Nebula and thus in the constellation of Cassiopeia, named after its discoverers Ronald F. Webbink and Howard E. Bond. The planetary nebula is formed by a young Barium star in a binary system orbiting each other every 4.7 days
https://de.wikipedia.org/wiki/WeBo_1
https://www.aapod2.com/blog/webo-1
http://www.caelumobservatory.com/gallery/webo1.shtml
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MarkBour
- Subtle Signal
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by MarkBour » Mon Feb 14, 2022 4:33 pm
No, supamario, I had not noticed it. I'm glad you asked and that AVAO answered. That's remarkable!
With an orbital period of just a few days, I wonder if the two stars are going to eventually contact and merge. WeBo 1 seems a very exciting system and if planets form in the disk, it could be a setup like the fictional planet Tatooine. But perhaps an environment too exciting for stable planets to form, let alone to be hospitable to life.
Mark Goldfain
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Ann
- 4725 Å
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Post
by Ann » Mon Feb 14, 2022 4:53 pm
WeBo 1 Planetary in Heart Nebula APOD 2022 02 14.png
I hadn't noticed the planetary nebula either, but at left is what it looks like in the APOD.
Ann
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Fred the Cat
- Theoretic Apothekitty
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Post
by Fred the Cat » Tue Feb 15, 2022 1:11 am
If a large star could
become a neutron star, then a neutron star could become a black hole, what could a black hole become?
Say something 3D is changed into a 2D object, what would be its 1D counterpart?
I guess I might as well ask what a 4D cat
ball looks like.
Quasars are like that; let alone a microquasar. They are hard to imagine.

Freddy's Felicity "Only ascertain as a cat box survivor"
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supamario
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by supamario » Tue Feb 15, 2022 10:22 am
Awesome. Thank you so much for the info.
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BillBixby
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by BillBixby » Tue Feb 15, 2022 8:02 pm
Fred the Cat wrote: ↑Tue Feb 15, 2022 1:11 am
If a large star could
become a neutron star, then a neutron star could become a black hole, what could a black hole become?
Say something 3D is changed into a 2D object, what would be its 1D counterpart?
I guess I might as well ask what a 4D cat
ball looks like.
Quasars are like that; let alone a microquasar. They are hard to imagine.
Hi. Interesting question. Not an area I am qualified in. The only one dimensional object I am aware of is a rainbow. It can be viewed from one side but not another as the light only passes through from one side.
A bridge is a 3D object. It can be walked around and viewed from many angles. A well done painting of that bridge would appear 3D, showing depth with foreground and background objects, but cannot be walked around and viewed from other angles. A painting of an object is therefore 2D. The frame and media are 3D. A bridge painting, poorly done, would not appear to have depth. Think artwork on Egyptian tombs or an engineers blueprints. 4D? What would that be? The Fifth Dimension is a singing group famous for "Hair" and "Let the Sun Rise."
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Chris Peterson
- Abominable Snowman
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by Chris Peterson » Tue Feb 15, 2022 9:21 pm
BillBixby wrote: ↑Tue Feb 15, 2022 8:02 pm
Fred the Cat wrote: ↑Tue Feb 15, 2022 1:11 am
If a large star could
become a neutron star, then a neutron star could become a black hole, what could a black hole become?
Say something 3D is changed into a 2D object, what would be its 1D counterpart?
I guess I might as well ask what a 4D cat
ball looks like.
Quasars are like that; let alone a microquasar. They are hard to imagine. :?
Hi. Interesting question. Not an area I am qualified in. The only one dimensional object I am aware of is a rainbow. It can be viewed from one side but not another as the light only passes through from one side.
A bridge is a 3D object. It can be walked around and viewed from many angles. A well done painting of that bridge would appear 3D, showing depth with foreground and background objects, but cannot be walked around and viewed from other angles. A painting of an object is therefore 2D. The frame and media are 3D. A bridge painting, poorly done, would not appear to have depth. Think artwork on Egyptian tombs or an engineers blueprints. 4D? What would that be? The Fifth Dimension is a singing group famous for "Hair" and "Let the Sun Rise."
Cue Art with a long discussion of
trompe-l'œil!
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Astrochris
Post
by Astrochris » Sun Feb 19, 2023 9:52 am
Hello, is there anymore information on this astrophotographer? Does he have a website? What kinda of equipment was used to take this beautiful photo?