View Profile: chornedsnorkack

Yesterday, 05:29 PM

chornedsnorkack replied to a thread Mars Close and Bright in Late July in Astronomy

Mars is 20 % denser than Moon. Therefore, if Mars had the same angular size, it would cause 20 % higher tides. However, Mars being brighter than...

13 replies | 181 view(s)

Yesterday, 05:28 PM

grapes replied to a thread Mars Close and Bright in Late July in Astronomy

For objects with similar densities, their gravitational effect is proportional to their arc area in the sky (so the sun has half the tidal effect of...

13 replies | 181 view(s)

Yesterday, 09:41 AM

grapes replied to a thread Mars Close and Bright in Late July in Astronomy

The "original" email somehow left off the "through a telescope" explanatory phrase. But what do you mean by feel it?

13 replies | 181 view(s)

2018-Jul-19, 09:04 PM

grapes replied to a thread Well-loved places you can never go back to in Off-Topic Babbling

Only after reading your post and thinking about it did I realize that almost all of mine (before I was 18) have been torn down. Four of them,...

34 replies | 548 view(s)

2018-Jul-19, 08:23 PM

grapes replied to a thread Hey guys! (waves) in Off-Topic Babbling

Subscribe

22 replies | 262 view(s)

2018-Jul-19, 08:16 PM

grapes replied to a thread Mars Close and Bright in Late July in Astronomy

You mean, you expect the brightness of the eclipsed full moon to be less than that of mars? Is that what you mean by literally? :)

13 replies | 181 view(s)

2018-Jul-19, 04:28 AM

chornedsnorkack replied to a thread Mass of nearby stars in Space/Astronomy Questions and Answers

The brighter stars: Magnitude 8: AX Microscopii, 8,69, 2,9 % 61 Cygni B, 8,31, 4,1 % Groombridge 1618, 8,11, 4,6 % Magnitude 7: 61 Cygni A,...

12 replies | 257 view(s)

2018-Jul-18, 06:39 PM

chornedsnorkack replied to a thread Mass of nearby stars in Space/Astronomy Questions and Answers

Note that over half of the total mass, about 12,5 solar, is in 50 stars magnitude 9,75 or dimmer - 46 red and 4 white dwarfs. The 12 stars magnitude...

12 replies | 257 view(s)

2018-Jul-17, 06:22 PM

chornedsnorkack replied to a thread Mass of nearby stars in Space/Astronomy Questions and Answers

What I get: 4 white dwarfs, magnitude 11,34...14,21, mass 0,60...1,02, combined 3,05 46 red dwarfs, magnitude 9,75...19,41, mass 0,07...0,50,...

12 replies | 257 view(s)

2018-Jul-17, 04:30 PM

chornedsnorkack started a thread Mass of nearby stars in Space/Astronomy Questions and Answers

How much mass is found in solar neighbourhood? Within 5 pc of Sun, I seem to find the following: Magnitude 1 - 1 dwarf, Sirius A, 1,42, A1, 2,06...

12 replies | 257 view(s)

2018-Jul-17, 09:58 AM

chornedsnorkack replied to a thread Gas flowing into galaxies in Space/Astronomy Questions and Answers

It is not only gas falling into galaxies that is in galaxies available for star formation. Stars also eject a lot.

9 replies | 273 view(s)

2018-Jul-15, 12:41 PM

chornedsnorkack replied to a thread Mars Close and Bright in Late July in Astronomy

But it shall be literally true this time! What shall be the angular distance from opposed (but not even penumbrally eclipsed) Mars to totally...

13 replies | 181 view(s)

2018-Jul-14, 05:56 PM

grapes replied to a thread English-to-English autotranslate in Small Media at Large

I started a project like this when I was about ten--the goal was to make the Encyclopedia Americana intelligible to me. Come to think of it, even...

20 replies | 366 view(s)

2018-Jul-14, 05:23 PM

grapes replied to a thread Mars Close and Bright in Late July in Astronomy

Full internet cycle! We're back to "Mars as big as the moon" Almost August! https://www.space.com/33869-mars-size-of-moon-hoax-tonight.html ...

13 replies | 181 view(s)

2018-Jul-13, 05:14 PM

chornedsnorkack replied to a thread Plasma in the accretion disc in Space/Astronomy Questions and Answers

These 10 000 solar masses were a molecular cloud till they fell in. As they fell in, the gravity of black hole accelerated them, heated them and...

41 replies | 847 view(s)

2018-Jul-12, 04:19 PM

chornedsnorkack replied to a thread July New Moon Spotting in Astronomy

You are forgetting the solar eclipse. Visible in Tasmania, Victoria and Antarctic coast opposite, as a partial one.

1 replies | 35 view(s)

2018-Jul-12, 04:02 PM

chornedsnorkack replied to a thread Plasma in the accretion disc in Space/Astronomy Questions and Answers

That´s protium.

41 replies | 847 view(s)

2018-Jul-11, 11:26 AM

grapes replied to a thread scientists delusions and 5 sigma in Science and Technology

Your OP here could've generated similar responses had you not even included the comment implying the authors of the article were ignorant or...

24 replies | 522 view(s)

2018-Jul-09, 06:52 PM

chornedsnorkack replied to a thread Plasma in the accretion disc in Space/Astronomy Questions and Answers

It is not only atoms, by definition of plasma. Mostly electrons and cations, besides atoms. A few anions and molecules.

41 replies | 847 view(s)

2018-Jul-08, 08:29 PM

chornedsnorkack replied to a thread Merging times. in Space/Astronomy Questions and Answers

So: the time for one turn of spiral is t1=1*{a}^{3/2}/{(M1+M2)}^{1/2 } The time for the whole spiral is t2=3.3*{10}^{17 }*{a}^{4 }/(M1+M2)*M1*M2...

6 replies | 264 view(s)

2018-Jul-08, 05:48 AM

chornedsnorkack replied to a thread How much water is on the Sun? in Space/Astronomy Questions and Answers

If the notional "dissociation temperature" of 3000 K is temperature at which steam is 50 % water molecules, 50 % hydrogen and oxygen, what is the...

10 replies | 332 view(s)

2018-Jul-04, 08:11 AM

chornedsnorkack replied to a thread Lake fish in Science and Technology

Crater Lake and many mountain lakes have no fish. On the other hand, a lot of lakes in Canada do have fish. All of them were full of ice 10 000...

30 replies | 904 view(s)

2018-Jul-04, 06:10 AM

chornedsnorkack replied to a thread Galaxies: Questions about radial velocity and age in Space/Astronomy Questions and Answers

Do bars of barred spirals rotate?

40 replies | 1115 view(s)

2018-Jul-03, 05:04 PM

grapes replied to a thread Cecil Adams' The Straight Dope is Ending in Small Media at Large

Phil Plait was The Bad Astronomer there long before the BABB or BAUT bulletin board versions

8 replies | 222 view(s)

2018-Jul-01, 01:02 PM

grapes replied to a thread The Barringer Crater Impact Question. in Space/Astronomy Questions and Answers

Good question The crater FAQ says it was a 2.5 megaton explosion. The wikipedia article says it was 10 megaton, and points out that Elugelab was...

5 replies | 169 view(s)

2018-Jul-01, 08:52 AM

chornedsnorkack replied to a thread Galaxies: Questions about radial velocity and age in Space/Astronomy Questions and Answers

Does the short axis of the ellipse (where rotation is pure proper motion) give the radial profile of average radial velocity?

40 replies | 1115 view(s)

2018-Jun-30, 05:43 PM

grapes replied to a thread Is Earth a failed star? in Space/Astronomy Questions and Answers

D'oh! yes

42 replies | 2369 view(s)

2018-Jun-30, 04:31 PM

grapes replied to a thread Is Earth a failed star? in Space/Astronomy Questions and Answers

Or, typically, "fission bombs" are triggered by "fusion bombs." The easiest way to set up the extreme conditions necessary.

42 replies | 2369 view(s)

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