What's THIS on sun telescope?!?

Unified Serenity · 08-16-2009, 07:16 PM

I just found this on the soho pics from 8/16. Is it from perseids stuff?

Go to 3:18 image

To use the video go to this page and choose LASCO3 then put in 2009-08-16 in start date and end date, click search. That will bring up the movie.

Sorry for the inconvenience.

WiNaDeYo · 08-16-2009, 07:41 PM

WOW! Could that be the dwarf star, the sun's twin?

metaw3 · 08-16-2009, 08:10 PM

The link to the movie doesn't work.

Unified Serenity · 08-16-2009, 08:14 PM

Thank Metaw,

To use the video go to this page and choose LASCO3 then put in 2009-08-16 in start date and end date, click search. That will bring up the movie. I guess the link won't work because it wants you to put in the dates and choose LASCO3.

Sorry for the inconvenience. I'll edit my post above to show how to get the video. You can also slow it down to stop the frames more easily.

lucrum · 08-16-2009, 08:55 PM

It kinda looks like a photo anomaly to me. It's kinda hard to tell if the circular shape is solid or not. The "tail" of the anomaly does however seem to have the right angle compared to its approach towards the sun. It's hard to tell if this could be something that passed the telescope at a very short distance or if it is at about the same distance as the sun itself.
It also strike me that it passed rather quickly, from one picture to the next taken a little less than 40 minutes apart. Would be quite the speed on that thing if it was at a distance.

I'm no picture expert though, far from it. So this is only based on how I observe it.

It does however seem that something disturbed SOHO around the time of that anomaly, considering the lines that appear in the 2 pictures prior to the picture posted above.

lucrum · 08-16-2009, 10:25 PM

After looking a little around, it seems the official conclusion is debris. I searched through a collection of debris anomalies on SOHO images and found something that can slightly resemble what we are seeing on this one.

So unless there appear some better explanation, I think it's safe to say this one's a dud.

08-17-2009, 01:15 PM

It sure is spherical for debris.

lucrum · 08-17-2009, 09:30 PM

True, but it depends what makes the anomaly appear. You can get all sorts of odd graphical anomalies in a photo that aren't a direct image of the actual debris. I'm guessing the shutter on the telescope aren't instant, so smearing is highly likely if something goes by.

Like in this case, the sphere shown is almost the same size as the sun disc, might even be exactly the same size...haven't measured it. The fact that this object appeared and passed out of view in a matter of ~30 minutes suggest it either went by very close to the telescope or it went really really fast (incredibly fast) if it was at about the same distance as the sun itself. This is apparent if you look at videos that contain comets in them, they will usually be visible on 3-4 frames before they are gone, sometimes even more.

KathyT · 08-20-2009, 05:29 AM

A site with more interesting images, using Google to translate to English.

http://translate.google.es/translate...hl=es&ie=UTF-8

Unified Serenity · 08-20-2009, 09:36 AM

Great find Kathy, thanks.

Myra · 08-23-2009, 08:39 PM

Well I've certainly been thinking about this lately, now I know why

Thanks for the links!

08-16-2009, 07:16 PM	#1
Unified Serenity Avalon Senior Member Join Date: Apr 2009 Posts: 893	What's THIS on sun telescope?!? I just found this on the soho pics from 8/16. Is it from perseids stuff? Go to 3:18 image To use the video go to this page and choose LASCO3 then put in 2009-08-16 in start date and end date, click search. That will bring up the movie. Sorry for the inconvenience. Last edited by Unified Serenity; 08-16-2009 at 08:21 PM.

08-16-2009, 07:41 PM	#2
WiNaDeYo Avalon Senior Member Join Date: Sep 2008 Location: Lombardy, Italy Posts: 222	Re: What's THIS on sun telescope?!? WOW! Could that be the dwarf star, the sun's twin?

08-16-2009, 08:10 PM	#3
metaw3 Avalon Senior Member Join Date: Oct 2008 Location: Canada Posts: 431	Re: What's THIS on sun telescope?!? The link to the movie doesn't work.

08-16-2009, 08:14 PM	#4
Unified Serenity Avalon Senior Member Join Date: Apr 2009 Posts: 893	Re: What's THIS on sun telescope?!? Thank Metaw, To use the video go to this page and choose LASCO3 then put in 2009-08-16 in start date and end date, click search. That will bring up the movie. I guess the link won't work because it wants you to put in the dates and choose LASCO3. Sorry for the inconvenience. I'll edit my post above to show how to get the video. You can also slow it down to stop the frames more easily.

08-16-2009, 08:55 PM	#5
lucrum Avalon Senior Member Join Date: Sep 2008 Location: Norway Posts: 209	Re: What's THIS on sun telescope?!? It kinda looks like a photo anomaly to me. It's kinda hard to tell if the circular shape is solid or not. The "tail" of the anomaly does however seem to have the right angle compared to its approach towards the sun. It's hard to tell if this could be something that passed the telescope at a very short distance or if it is at about the same distance as the sun itself. It also strike me that it passed rather quickly, from one picture to the next taken a little less than 40 minutes apart. Would be quite the speed on that thing if it was at a distance. I'm no picture expert though, far from it. So this is only based on how I observe it. It does however seem that something disturbed SOHO around the time of that anomaly, considering the lines that appear in the 2 pictures prior to the picture posted above.

08-16-2009, 10:25 PM	#6
lucrum Avalon Senior Member Join Date: Sep 2008 Location: Norway Posts: 209	Re: What's THIS on sun telescope?!? After looking a little around, it seems the official conclusion is debris. I searched through a collection of debris anomalies on SOHO images and found something that can slightly resemble what we are seeing on this one. So unless there appear some better explanation, I think it's safe to say this one's a dud.

08-17-2009, 01:15 PM	#7
no caste Guest Posts: n/a	Re: What's THIS on sun telescope?!? It sure is spherical for debris.

08-17-2009, 09:30 PM	#8
lucrum Avalon Senior Member Join Date: Sep 2008 Location: Norway Posts: 209	Re: What's THIS on sun telescope?!? True, but it depends what makes the anomaly appear. You can get all sorts of odd graphical anomalies in a photo that aren't a direct image of the actual debris. I'm guessing the shutter on the telescope aren't instant, so smearing is highly likely if something goes by. Like in this case, the sphere shown is almost the same size as the sun disc, might even be exactly the same size...haven't measured it. The fact that this object appeared and passed out of view in a matter of ~30 minutes suggest it either went by very close to the telescope or it went really really fast (incredibly fast) if it was at about the same distance as the sun itself. This is apparent if you look at videos that contain comets in them, they will usually be visible on 3-4 frames before they are gone, sometimes even more. Last edited by lucrum; 08-17-2009 at 09:33 PM.

08-20-2009, 05:29 AM	#9
KathyT Avalon Senior Member Join Date: Oct 2008 Location: America Posts: 427	Re: What's THIS on sun telescope?!? A site with more interesting images, using Google to translate to English. http://translate.google.es/translate...hl=es&ie=UTF-8

08-20-2009, 09:36 AM	#10
Unified Serenity Avalon Senior Member Join Date: Apr 2009 Posts: 893	Re: What's THIS on sun telescope?!? Great find Kathy, thanks.

08-23-2009, 08:39 PM	#11
Myra Avalon Senior Member Join Date: Sep 2008 Location: So Cal Coast USA Posts: 340	Re: What's THIS on sun telescope?!? Well I've certainly been thinking about this lately, now I know whyThanks for the links!