Starship Asterisk*

by **Nitpicker** » Fri Aug 19, 2016 12:51 pm

      PROGRAM LOOPY
       
      LOGICAL LIKE = .FALSE.
 
 HELL IF (.NOT. LIKE) THEN
      GOTO HELL
      ENDIF
      
      STOP
      END

by **Ann** » Fri Aug 19, 2016 4:04 am

Så klart! Jag stöttar det!

Ann

by **rstevenson** » Fri Aug 19, 2016 2:21 am

Je suis agréable.

le Rob

by **geckzilla** » Thu Aug 18, 2016 6:18 pm

Cute. ._.

by **Astronymus** » Thu Aug 18, 2016 6:14 pm

Спасибо wrote:
geckzilla wrote:To all Spanish-speaking friends: Please post in English if you can. It was ok for a few posts in the Mars thread, but I can't read Spanish and I have a very hard time understanding the tone of a post since I know so little of it. Auto translate is not good enough many times and confusion can easily lead to misunderstanding and negative interactions on the forum.

Да , с английского на русский язык является достаточно сложным делом , не бросать испанский в на вершине этого .

Volltreffer. Nicht jeder spricht zwanzig oder mehr Fremdsprachen. In einem englischsprachigen Forum sollte man auch bei Englisch bleiben.

by **Спасибо** » Thu Aug 18, 2016 5:30 pm

geckzilla wrote:To all Spanish-speaking friends: Please post in English if you can. It was ok for a few posts in the Mars thread, but I can't read Spanish and I have a very hard time understanding the tone of a post since I know so little of it. Auto translate is not good enough many times and confusion can easily lead to misunderstanding and negative interactions on the forum.

Да , с английского на русский язык является достаточно сложным делом , не бросать испанский в на вершине этого .

by **geckzilla** » Thu Aug 18, 2016 9:45 am

To all Spanish-speaking friends: Please post in English if you can. It was ok for a few posts in the Mars thread, but I can't read Spanish and I have a very hard time understanding the tone of a post since I know so little of it. Auto translate is not good enough many times and confusion can easily lead to misunderstanding and negative interactions on the forum.

by **Chris Peterson** » Thu Aug 18, 2016 3:07 am

Ann wrote:The color of the meteor is very green and unchanging. My impression is that most meteor images show the meteors to be generally changing color, and while they may well be green, this sharply yellow-green and unchanging color is one I have not seen in photos before.

One reason that images show changing color has to do with individual color channels on the sensor being saturated at different points along the path. Another thing to consider is that green in meteors typically is the result of atmospheric oxygen. Shallow meteor paths and meteors that burn up quickly have everything happening in a similar atmospheric regime, and are more likely to show the same color. Those that descend steeply pass through different atmosphere which can result in different colors. Some meteors that show different colors do so because we're also seeing spectral contributions from the meteoroid itself (especially with sporadic, asteroidal material), and different elements burn off at different times, depending on temperature.

by **Maksu70** » Wed Aug 17, 2016 7:38 pm

It seems to me very unlikely a meteor path so much perpendicular to M31, so near the center and with the blast happenning symetrically at both sides of M31

Can this photo be a composition?

If the meteor happens at 100km of height, does this means that if the photographer had chossen a place 2 km away he would had missed the photo?
(100km*tan(1 degree)=1,7 km
Does the radiant concept for a meteor shower imply the above calculation is wrong?

Can be calculated the probability that for a person that is photographying M31, a so centered, perpendicular ans symetric meteor passes over M31?, then multiplying this probability by the number of photographers on earth we can calculate how fortunately we have been or if we can be skeptical about this is not a composition

by **BMAONE23** » Wed Aug 17, 2016 7:23 pm

Andromeda should consider herself fortunate, If the track had been even slightly different (viewpoint anyway) Her heart would have been pierced

by **Boomer12k** » Wed Aug 17, 2016 6:45 pm

"...and they called him, "the streeeeaakk.."

Song from the 70's, I think...

Really great shot...

:---[===] *

by **Ann** » Wed Aug 17, 2016 5:23 pm

loquin wrote:
The color of the meteor is very green and unchanging. My impression is that most meteor images show the meteors to be generally changing color, and while they may well be green, this sharply yellow-green and unchanging color is one I have not seen in photos before.

Ann
Ann, while it may be rare to photograph them, they do happen... One I saw some time ago flared in green as it appeared, then the trail looked like an unchanging brilliant green bar until it died. The other thing to remember here, is that with the photo shown, the path of the meteor only covers about 5-6 degrees of the sky top-to-bottom, so we're probably only seeing a portion, possibly a small portion, of the entire meteor track. That being the case, the chances of seeing a color change in the reduced portion of the total track is also reduced.

: Click to view full size image

That's true. We only saw the meteor cross Andromeda, and Andromeda isn't that large in the sky (although it isn't that small either).

Ann

by **No hunter** » Wed Aug 17, 2016 4:45 pm

That sounds like a witch on her broomstick

by **No hunter** » Wed Aug 17, 2016 4:40 pm

by **loquin** » Wed Aug 17, 2016 4:36 pm

The color of the meteor is very green and unchanging. My impression is that most meteor images show the meteors to be generally changing color, and while they may well be green, this sharply yellow-green and unchanging color is one I have not seen in photos before.

Ann

Ann, while it may be rare to photograph them, they do happen... One I saw some time ago flared in green as it appeared, then the trail looked like an unchanging brilliant green bar until it died. The other thing to remember here, is that with the photo shown, the path of the meteor only covers about 5-6 degrees of the sky top-to-bottom, so we're probably only seeing a portion, possibly a small portion, of the entire meteor track. That being the case, the chances of seeing a color change in the reduced portion of the total track is also reduced.

by **Bellerophon** » Wed Aug 17, 2016 4:26 pm

It's an astronomical photobomb!

by **Fred the Cat** » Wed Aug 17, 2016 3:09 pm

Serendipity

Great catch but was the show(er) as good as expected

by **Hunter** » Wed Aug 17, 2016 2:55 pm

Dear astrometbcn,

Why you write in Spanish if I wrote in English, with these moderate ways?

by **Jim-1920** » Wed Aug 17, 2016 2:30 pm

The link for the larger image has a filetype of "gif." Should be "jpg."

http://apod.nasa.gov/apod/image/1608/Me ... h_1948.gif <----

Jim

by **caliu** » Wed Aug 17, 2016 2:08 pm

Hunter wrote:
astrometbcn wrote:I do not understand from where the color, if only captured the meteor with monochrome ccd, for now remains only clarify whether he caught the meteor with ccd or if it could also capture also with the dslr rgb.......
You need to learn more before commenting

As he said in his flickr:

Technique: parallel exposure with two imaging systems:
(1) Canon 200mm/F1.8 (open), SX-36, L-pro filter, 240 sec exposure time,
(2) Canon 200mm/F1.8 (open), Sony A7s (CentralDS modded), ISO 3200, IDAS-V4 filter, 90 sec
both on EQ8 mount unguided.
Final image processed with 32 subframes from each system for the galaxy and the stars resulting in a L-RGB image.
Tenerife, 1180 m alt, 2016-08-12 00:45 UT

Mr Hunter,
Why should we believe?

by **Astronymus** » Wed Aug 17, 2016 1:57 pm

Could the nearly equal flare burst be caused by rotation of the object?

by **Hunter** » Wed Aug 17, 2016 12:57 pm

astrometbcn wrote:I do not understand from where the color, if only captured the meteor with monochrome ccd, for now remains only clarify whether he caught the meteor with ccd or if it could also capture also with the dslr rgb.......

You need to learn more before commenting

As he said in his flickr:

Technique: parallel exposure with two imaging systems:
(1) Canon 200mm/F1.8 (open), SX-36, L-pro filter, 240 sec exposure time,
(2) Canon 200mm/F1.8 (open), Sony A7s (CentralDS modded), ISO 3200, IDAS-V4 filter, 90 sec
both on EQ8 mount unguided.
Final image processed with 32 subframes from each system for the galaxy and the stars resulting in a L-RGB image.
Tenerife, 1180 m alt, 2016-08-12 00:45 UT

by **astrometbcn** » Wed Aug 17, 2016 11:01 am

I do not understand from where the color, if only captured the meteor with monochrome ccd, for now remains only clarify whether he caught the meteor with ccd or if it could also capture also with the dslr rgb.......

by **hamilton1** » Wed Aug 17, 2016 10:21 am

omg what a brilliant image.

by **astrometbcn** » Wed Aug 17, 2016 6:07 am

Hi

The Sony A7s rgb and SX -36 camera monochrome, two at a time? or the meteor was captured by the SX -36 monochrome and then he has painted the green colour??

Starship Asterisk*

APOD: Meteor before Galaxy (2016 Aug 17)

Post a reply

Expand view Topic review: APOD: Meteor before Galaxy (2016 Aug 17)

Re: APOD: Meteor before Galaxy (2016 Aug 17)

Re: APOD: Meteor before Galaxy (2016 Aug 17)

Re: APOD: Meteor before Galaxy (2016 Aug 17)

Re: APOD: Meteor before Galaxy (2016 Aug 17)

Re: APOD: Meteor before Galaxy (2016 Aug 17)

Re: APOD: Meteor before Galaxy (2016 Aug 17)

Re: APOD: Meteor before Galaxy (2016 Aug 17)

Re: APOD: Meteor before Galaxy (2016 Aug 17)

Re: APOD: Meteor before Galaxy (2016 Aug 17)

Re: APOD: Meteor before Galaxy (2016 Aug 17)

Re: APOD: Meteor before Galaxy (2016 Aug 17)

Re: APOD: Meteor before Galaxy (2016 Aug 17)

Re: APOD: Meteor before Galaxy (2016 Aug 17)

Re: APOD: Meteor before Galaxy (2016 Aug 17)

Re: APOD: Meteor before Galaxy (2016 Aug 17)

Re: APOD: Meteor before Galaxy (2016 Aug 17)

Re: APOD: Meteor before Galaxy (2016 Aug 17)

Re: APOD: Meteor before Galaxy (2016 Aug 17)

Re: APOD: Meteor before Galaxy (2016 Aug 17)

Re: APOD: Meteor before Galaxy (2016 Aug 17)

Re: APOD: Meteor before Galaxy (2016 Aug 17)

Re: APOD: Meteor before Galaxy (2016 Aug 17)

Re: APOD: Meteor before Galaxy (2016 Aug 17)

Re: APOD: Meteor before Galaxy (2016 Aug 17)

Re: APOD: Meteor before Galaxy (2016 Aug 17)