by Ann » Sun Jan 31, 2021 5:36 am
alter-ego wrote: ↑Sat Jan 30, 2021 5:38 pm
johnnydeep wrote: ↑Sat Jan 30, 2021 3:07 pm
APOD Robot wrote: ↑Sat Jan 30, 2021 5:05 am
Southern Sky from 38,000 Feet
Explanation: Celestial sights of the southern sky shine above a
cloudy planet Earth in this gorgeous night sky view. The scene was captured from an airliner's flight deck at 38,000 feet on a steady westbound ride to Lima, Peru. To produce
the sharp airborne astrophotograph, the best of a series of short exposures were selected and digitally stacked. The broad band of the
southern Milky Way begins at top left with the dark
Coalsack Nebula and Southern Cross. Its expanse of diffuse starlight encompasses the the Carina Nebula and large Gum Nebula toward the right. Canopus, alpha star of Carina and second brightest star in Earth's night is easy to spot below the Milky Way, as is the dwarf galaxy known as the
Large Magellanic Cloud. The Small Magellanic cloud just peeks above the cloudy horizon. Of course, the South Celestial Pole also lies
within the starry southern frame.
I really wish these pics were annotated more often. Did I get this right?
Southern Sky.jpg
Not quite.
Carina nebula = Running Chicken Nebula
Gum Nebula = Carina Nebula
The Gum Nebula an expansive 36° nebula, part it you see further to the right above Canopus.
I would like to add that the Gum Nebula is the long reddish strip at 2 o'clock. And the brightest blue star inside that red strip is the magnificent
Gamma Velorum, a quadruple star which contains an O-type supergiant and the nearest
Wolf-Rayet star in the sky.
A Wolf-Rayet star is a highly evolved very hot star. It started out as a massive O-type star, but its extremely strong wind has blown away more than half of its original mass and exposed extra hot layers inside.
I'd like to add, too, that I really like this APOD.
Ann
[quote=alter-ego post_id=310389 time=1612028290 user_id=125299]
[quote=johnnydeep post_id=310376 time=1612019242 user_id=132061]
[quote="APOD Robot" post_id=310361 time=1611983157 user_id=128559]
[url=https://apod.nasa.gov/apod/ap210130.html] [img]https://apod.nasa.gov/apod/calendar/S_210130.jpg[/img] [size=150]Southern Sky from 38,000 Feet[/size][/url]
[b] Explanation: [/b] Celestial sights of the southern sky shine above a [url=https://www.nasa.gov/image-feature/cloudy-earth]cloudy planet Earth[/url] in this gorgeous night sky view. The scene was captured from an airliner's flight deck at 38,000 feet on a steady westbound ride to Lima, Peru. To produce [url=https://www.flickr.com/photos/skypointer2000/50869832177/]the sharp airborne astrophotograph[/url], the best of a series of short exposures were selected and digitally stacked. The broad band of the [url=https://apod.nasa.gov/apod/ap170821.html]southern Milky Way[/url] begins at top left with the dark [url=https://oneminuteastronomer.com/2036/coalsack-nebula/]Coalsack Nebula[/url] and Southern Cross. Its expanse of diffuse starlight encompasses the the Carina Nebula and large Gum Nebula toward the right. Canopus, alpha star of Carina and second brightest star in Earth's night is easy to spot below the Milky Way, as is the dwarf galaxy known as the [url=https://en.wikipedia.org/wiki/Galaxies_in_fiction#Large_Magellanic_Cloud]Large Magellanic Cloud[/url]. The Small Magellanic cloud just peeks above the cloudy horizon. Of course, the South Celestial Pole also lies [url=https://apod.nasa.gov/apod/ap210101.html]within the starry southern frame[/url].
[/quote]
I really wish these pics were annotated more often. Did I get this right?
Southern Sky.jpg
[/quote]
Not quite.
Carina nebula = Running Chicken Nebula
Gum Nebula = Carina Nebula
The Gum Nebula an expansive 36° nebula, part it you see further to the right above Canopus.
[/quote]
[float=right][img3="Wolf-Rayet star WR 124 and the nebula of the star's own making, M1-67. The Wolf-Rayet star in Gamma Velorum does not have a similar nebula. Photo: ESA/Hubble."]https://upload.wikimedia.org/wikipedia/commons/thumb/7/7f/A_cosmic_couple.jpg/465px-A_cosmic_couple.jpg[/img3][/float]I would like to add that the Gum Nebula is the long reddish strip at 2 o'clock. And the brightest blue star inside that red strip is the magnificent [url=https://en.wikipedia.org/wiki/Gamma_Velorum]Gamma Velorum[/url], a quadruple star which contains an O-type supergiant and the nearest [url=https://en.wikipedia.org/wiki/Wolf–Rayet_star]Wolf-Rayet[/url] star in the sky.
A Wolf-Rayet star is a highly evolved very hot star. It started out as a massive O-type star, but its extremely strong wind has blown away more than half of its original mass and exposed extra hot layers inside.
I'd like to add, too, that I really like this APOD.
Ann