Search found 148 matches

by Astronymus
Sun Mar 03, 2019 9:25 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: The Orion Bullets (2019 Mar 03)
Replies: 13
Views: 3562

Re: APOD: The Orion Bullets (2019 Mar 03)

One article explains: "At the center of the giant butterfly-like feature is IRc2, a star 30 times more massive than the sun which is in the process of forming. A strong wind with a speed of more than 100 kilometers per second is blowing out from IRc2, evacuating the butterfly-like cavity and a...
by Astronymus
Wed Feb 20, 2019 10:37 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Doomed Star Eta Carinae (2019 Feb 20)
Replies: 16
Views: 7292

Re: APOD: Doomed Star Eta Carinae (2019 Feb 20)

If we could look directly along the axis of the homunculus and see the star(s) at its center, would it not appear similar to the Eskimo nebula or the Cat's Eye nebula? In other words, are they not all similar structures, but seen at varying angles? This might interest you. [youtube=https://www.yout...
by Astronymus
Tue Feb 12, 2019 9:08 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Plane Crossing a Crescent Moon (2019 Feb 12)
Replies: 6
Views: 2515

Re: APOD: Plane Crossing a Crescent Moon (2019 Feb 12)

khh wrote: Tue Feb 12, 2019 6:28 amAHA! Chemtrails!
You better start spraying vinegar on a fan. :lol2:
by Astronymus
Fri Feb 01, 2019 4:02 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Ultima Thule from New Horizons (2019 Jan 29)
Replies: 35
Views: 21216

Re: APOD: Ultima Thule from New Horizons (2019 Jan 29)

As for the red color, Ultima Thule is not the only Kuiper Belt object that is reddish. Pluto, for example, is too. But how can it be that Pluto is reddish while Charon, moon of Pluto, is mostly grey ? I'd like to have that explained to me. Ann Not an explanation more a guess. My guess would be Char...
by Astronymus
Fri Jan 18, 2019 8:47 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Meteor and Milky Way over the Alps (2019 Jan 14)
Replies: 17
Views: 4366

Re: APOD: Meteor and Milky Way over the Alps (2019 Jan 14)

a new image in the series was quickly taken with one of the sky-gazers posing on the nearby peak. Later, all of the images were digitally combined. Anybody can photoshop or stitch pictures together to represent something that didn't really happen. This is one of them. I'm always disappointed when s...
by Astronymus
Fri Nov 30, 2018 5:59 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: InSight's First Image from Mars (2018 Nov 27)
Replies: 15
Views: 4568

Re: APOD: InSight's First Image from Mars (2018 Nov 27)

Someone forgot to think about a detachable lens cover.
by Astronymus
Tue Nov 13, 2018 4:10 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Rotating Asteroid Bennu from OSIRIS-REx (2018 Nov 13)
Replies: 35
Views: 7326

Re: APOD: Rotating Asteroid Bennu from OSIRIS-REx (2018 Nov 13)

neufer wrote: Tue Nov 13, 2018 1:16 pm viewtopic.php?f=8&t=18688&p=287008#p287008
Thanks for the link. I guessed there is a reason for these similarities. I can imagine we'll find more planetoids like these two in the future.
by Astronymus
Mon Sep 24, 2018 8:40 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Rover 1A Hops on Asteroid Ryugu (2018 Sep 24)
Replies: 23
Views: 4543

Re: APOD: Rover 1A Hops on Asteroid Ryugu (2018 Sep 24)

In later years, when so many people have begun questioning the Moon landing, I have come to think of the terrible quality of the transmission as one brilliant piece of evidence that the Moon landing was for real. Because if Hollywood had staged the whole thing, there is no way they would have allow...
by Astronymus
Wed Sep 19, 2018 2:52 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Salt, Pepper, and Ice (2018 Sep 18)
Replies: 13
Views: 2253

Re: APOD: Salt, Pepper, and Ice (2018 Sep 18)

There is a small object moving in the right upper corner. Is it an asteroid? Can I name it? :mrgreen: https://i.imgur.com/kcTqTVo.gif I couldn't find what you've found Astronymus, but in looking for it I noticed what looks like a meteor about 1/3rd of the way into the video cutting across part of t...
by Astronymus
Tue Sep 18, 2018 9:31 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Salt, Pepper, and Ice (2018 Sep 18)
Replies: 13
Views: 2253

Re: APOD: Salt, Pepper, and Ice (2018 Sep 18)

There is a small object moving in the right upper corner. Is it an asteroid? Can I name it? :mrgreen:

Image
by Astronymus
Thu Jul 19, 2018 9:16 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Cerealia Facula (2018 Jul 19)
Replies: 25
Views: 7224

Re: APOD: Cerealia Facula (2018 Jul 19)

There seem fault lines nearby. I wonder if this salty mass might have been pushed out like outcrops on earth. Like exposed salt domes. Such mass doesn't need to be wet with water to flow. Maybe shrinking of the asteroids crust and shape due to an cooling core caused it.
by Astronymus
Sun May 27, 2018 5:59 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Coronal Rain on the Sun (2018 May 27)
Replies: 12
Views: 6650

Re: APOD: Coronal Rain on the Sun (2018 May 27)

hhydro wrote: Sun May 27, 2018 2:07 pm I'm puzzled as to why it appears that nearly all the material is flowing down. Why don't we see matter moving up in these loops? I expect that the continuity equation holds on the sun.
If I had to speculate it's because it gets heated up on the way down and emits more light.
by Astronymus
Sun Mar 11, 2018 2:36 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Dual Particle Beams in Herbig-Haro 24 (2018 Mar 11)
Replies: 19
Views: 59566

Re: APOD: Duel Particle Beams in Herbig-Haro 24 (2018 Mar 11)

George wrote: Sun Mar 11, 2018 7:18 am The description explains the two orange beams, as pointing along rotation axis.
But what causes the bluish beam, pointing to the lower left?
Probably jets of other young stars in the neighbourhood?
by Astronymus
Mon Dec 25, 2017 10:09 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Fireball in the Arctic (2017 Dec 25)
Replies: 3
Views: 5350

Re: APOD: Fireball in the Arctic (2017 Dec 25)

And a smaller one above it. And lots of satellites.
by Astronymus
Sun Oct 22, 2017 11:11 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Two Black Holes Dancing in 3C 75 (2017 Oct 22)
Replies: 22
Views: 8627

Re: APOD: Two Black Holes Dancing in 3C 75 (2017 Oct 22)

so...if not even light is supposed to escape a black hole, how do these emit streams? and why doesn't the other's gravitational field suck it up when it orbits around? The jets are formed by gas and particles of the accretion disc that just escape the black hole. Like gaining speed by a malstroem b...
by Astronymus
Sat Jul 22, 2017 8:57 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Apollo 11: Catching Some Sun (2017 Jul 22)
Replies: 19
Views: 3846

Re: APOD: Apollo 11: Catching Some Sun (2017 Jul 22)

Along the dragmark, there is a cable or a wire running from the module, slightly elevated from the ground, casting a shadow at places and endingending in a look. Wonder what that is! It's almost certainly the cable between the TV camera Armstrong deployed and the transmitter in the LM. (It doesn't ...
by Astronymus
Wed Jul 19, 2017 8:40 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Ireson Hill on Mars (2017 Jul 19)
Replies: 29
Views: 7749

Re: APOD: Ireson Hill on Mars (2017 Jul 19)

Probably some kind of volcanic vent or former way of mineralized water.
by Astronymus
Sun Jul 02, 2017 8:18 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Mountains of Dust in the Carina Nebula (2017 Jul 02)
Replies: 23
Views: 7073

Re: APOD: Mountains of Dust in the Carina Nebula (2017 Jul 02)

Notice the jets the new formed stars shoot out of their nurseries.
by Astronymus
Sun Jun 18, 2017 3:59 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Views from Cassini at Saturn (2017 Jun 18)
Replies: 37
Views: 15820

Re: APOD: Views from Cassini at Saturn (2017 Jun 18)

Too bad you have to install Flash to see it... No you don't. It's an HTML5 video. If your browser is requiring Flash, you're either running a very obsolete system or you have something misconfigured. (Note that it runs fine on mobile devices that don't even offer Flash as an option.) Found the prob...
by Astronymus
Sun Jun 18, 2017 1:10 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Views from Cassini at Saturn (2017 Jun 18)
Replies: 37
Views: 15820

Re: APOD: Views from Cassini at Saturn (2017 Jun 18)

Too bad you have to install Flash to see it...