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Astronomy Picture of the Day - GK Per: Nova and Planetary Nebula
NASA ^
| 30 Apr, 2024
| Image Credit & Copyright: Deep Sky Collective
Posted on 04/30/2024 12:13:22 PM PDT by MtnClimber
Explanation: The star system GK Per is known to be associated with only two of the three nebulas pictured. At 1500 light years distant, Nova Persei 1901 (GK Persei) was the second closest nova yet recorded. At the very center is a white dwarf star, the surviving core of a former Sun-like star. It is surrounded by the circular Firework nebula, gas that was ejected by a thermonuclear explosion on the white dwarf's surface -- a nova -- as recorded in 1901. The red glowing gas surrounding the Firework nebula is the atmosphere that used to surround the central star. This gas was expelled before the nova and appears as a diffuse planetary nebula. The faint gray gas running across is interstellar cirrus that seems to be just passing through coincidently. In 1901, GK Per's nova became brighter than Betelgeuse. Similarly, star system T CrB is expected to erupt in a nova later this year, but we don't know exactly when nor how bright it will become.
TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; nasa
To be added or removed from the Astronomy Picture of the Day ping list please send me a request via "Private Reply" (Mail). For more detail go to the link and click on the image for a high definition image. You can then move the magnifying glass cursor then click to zoom in and click again to zoom out. When zoomed in you can scan by moving the side bars on the bottom and right side of the image.
To: MtnClimber
2
posted on
04/30/2024 12:13:39 PM PDT
by
MtnClimber
(For photos of scenery and wildlife, click on my screen name for my FR home page. More photos added.)
To: 21stCenturion; 21twelve; 4everontheRight; abb; AFB-XYZ; AFPhys; Agatsu77; America_Right; ...
Pinging the APOD list
🪐 🌟 🌌 🍔
3
posted on
04/30/2024 12:14:18 PM PDT
by
MtnClimber
(For photos of scenery and wildlife, click on my screen name for my FR home page. More photos added.)
To: MtnClimber
Magnified view:
4
posted on
04/30/2024 12:16:01 PM PDT
by
MtnClimber
(For photos of scenery and wildlife, click on my screen name for my FR home page. More photos added.)
To: MtnClimber
5
posted on
04/30/2024 12:17:27 PM PDT
by
MtnClimber
(For photos of scenery and wildlife, click on my screen name for my FR home page. More photos added.)
To: MtnClimber
6
posted on
04/30/2024 12:18:25 PM PDT
by
Red Badger
(Homeless veterans camp in the streets while illegals are put up in 5 Star hotels....................)
To: MtnClimber
Sorry, can’t get the magnified view to post. It is an amazing photo. Follow directions in post #1 to view it.
7
posted on
04/30/2024 12:19:00 PM PDT
by
MtnClimber
(For photos of scenery and wildlife, click on my screen name for my FR home page. More photos added.)
To: Red Badger
8
posted on
04/30/2024 12:24:23 PM PDT
by
MtnClimber
(For photos of scenery and wildlife, click on my screen name for my FR home page. More photos added.)
To: MtnClimber
9
posted on
04/30/2024 12:25:08 PM PDT
by
nesnah
(Infringe - act so as to limit or undermine [something]; encroach on)
To: MtnClimber
It looks like a gemstone ring on a finger!
10
posted on
04/30/2024 1:00:38 PM PDT
by
MS.BEHAVIN
(Women who behave rarely make history.)
To: MtnClimber
It really does look like a firework! Amazing.
11
posted on
04/30/2024 2:19:18 PM PDT
by
telescope115
(I NEED MY SPACE!!! 🔭)
To: MtnClimber
Everytime I see these atronomy pictures I am reminded it is my car and carbon foot print that is really in charge....
12
posted on
04/30/2024 2:59:42 PM PDT
by
Organic Panic
(Democrats. Memories as short as Joe Biden's eyes.)
To: MtnClimber
Looks like a huge diamond
13
posted on
04/30/2024 5:04:26 PM PDT
by
goodnesswins
(The Tree of Liberty is getting thirsty...)
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