Captured my best IR Mars data for this apparition this morning.
Mars was only 23 degrees above the horizon for this capture and a mere 8 sec's of arc in diameter.
The seeing was good for such a low altitude and the live feed showed some well defined detail.
This image is in the IR 807+nm, it has been resized from 640 x 480 pixels to 800 x 600 pixels for a better image scale then cropped and the canvas sized to 18 x 14 cm.
Following on from Joel's exploits of imaging the Huygens Crater I think I also have Huygens in this image.
I have indicated Syritis Major, the Elysium Planes and the North Polar Ice Cap. There is much more detail however more lines identifying the features would detract from the image.
If you look closely, at the broadest part of Syritis Major, across the top of it, so to speak, there is a definite spot in the position of the Huygens Crater that matches the scale of the actual crater.
In resizing the image to reveal that detail there is a ring artifact around the planet, I think it is a small price to pay in revealing the most detail I have ever captured on Mars.
Nice work, the overall contrast is quite remarkable, not to mention the detail for a miserly 8 arcsecs! To get around the issue of lines cluttering the image, one solution is to make a composite, with a “naked” image on the left, showing a duplicate on the right with all the labels.
Outstanding image Trevor, for sure, but you have the features ID'd wrong. Here is the region you imaged, but with north up and I've attached a Mars Previewer image to show you that time and CM on Mars.
And, I'd like to add, this is about the best image of this appariation yet that I have seen of albedo features in that region. You easily resolved the split in Sinus Meridiani. A great view of Mare Erythraeum. Part of it is obscured by much brightness. Could be an indicator of dust, but Chryse is always bright and its easy to over expose the toward the limb of Mars. Might be worth waching though. And what a view of Mare Acidialium!
Nice work, the overall contrast is quite remarkable, not to mention the detail for a miserly 8 arcsecs! To get around the issue of lines cluttering the image, one solution is to make a composite, with a “naked” image on the left, showing a duplicate on the right with all the labels.
Cheers
Dennis
Thanks Dennis, have taken your advice and will repost within this thread after finishing my replies.
Quote:
Originally Posted by asimov
That's a nice image Trevor with plenty of detail for 8 arcseconds.
Thanks Asimov, I am most pleased with this result for so early in the season.
Quote:
Originally Posted by Joel Warren
Outstanding image Trevor, for sure, but you have the features ID'd wrong. Here is the region you imaged, but with north up and I've attached a Mars Previewer image to show you that time and CM on Mars.
Thanks Joel, I am not used to imaging Mars, forgive my ineptitude, I have posted a revived image with a comparison copy this is correctly labeled.
Quote:
Originally Posted by iceman
Fantastic work Trevor, excellent detail right there.
Well done indeed. No RGB data?
Thanks MIke, I did try one set of RGB's which were horrendous, this IR filter really does an amazing job of dealing with our atmosphere close to the horizon.
Quote:
Originally Posted by Joel Warren
And, I'd like to add, this is about the best image of this apparition yet that I have seen of albedo features in that region. You easily resolved the split in Sinus Meridiani. A great view of Mare Erythraeum. Part of it is obscured by much brightness. Could be an indicator of dust, but Chryse is always bright and its easy to over expose the toward the limb of Mars. Might be worth waching though. And what a view of Mare Acidialium!
Yep I am pretty stoked with this result, check out my correctly relabeled image.
That is amazing detail Trev for 8 arc sec!
My best shots from 2003 and 2005 don't even show Sinus Meridiani
that clear...and that was 25arc sec and 20 respectively!
That filter sure is performing well, I can't wait to see a shot
at closest approach!
I can't believe you mis-identified Meridiani LOL
I used to use a Japanese Mars server for my simulation comparisons
but can't for the life of me find the link now.
Out of all of the sims it had the most realistic looking sim shot
for comparison to my results out of all of the online stuff IMHO.
Hopefully I can find it for ya for a comparison.
Thanks very much for the idea Dennis, presented in this way I can put as many labels as required and the bare image still remains unimpeded.
Quote:
Originally Posted by multiweb
That's quite amazing to see so clear details on mars. Are you using some special filter or is it your processing technique?
Thanks Marc, the most special thing about this image is the Astronomik IR filter. Electromagnetic radiation at these wavelengths is largely unaffected by the amount of our atmosphere it must pass through at altitudes as low as Mars currently is.
Quote:
Originally Posted by bird
Very nice Trevor!
Bird
Thanks Anthony, have you been able to get any data on Mars yet?
Quote:
Originally Posted by kinetic
Trev,
That is amazing detail Trev for 8 arc sec!
My best shots from 2003 and 2005 don't even show Sinus Meridiani
that clear...and that was 25arc sec and 20 respectively!
That filter sure is performing well, I can't wait to see a shot
at closest approach!
I can't believe you mis-identified Meridiani LOL
I used to use a Japanese Mars server for my simulation comparisons
but can't for the life of me find the link now.
Out of all of the sims it had the most realistic looking sim shot
for comparison to my results out of all of the online stuff IMHO.
Hopefully I can find it for ya for a comparison.
Great stuff Trev....
Steve
Thanks Steve, Mars is one target I really have put very little into over the years, but that is no excuse for the exceptionally poor effort at identifying the detail. Mind you, I was really stoked with the amount of detail that has been captured. The only thing I have for identification is a very large wall chart and when Joel pointed out my error and I went back to the chart it was a real "oh you idiot" moment.
Very nice image Trevor! Making me excited for when I have a crack at it this summer
Thanks Andrew, appreciate your comment and like you I am looking forward to opposition.
Quote:
Originally Posted by kinetic
BTW Trevor, heads up mate...the JS and MSL are looking pretty
good for the next few days around SA/ far western NSW.
Steve
Thanks Steve, it looked good tonight, not a breath of wind and I have just come back in after a couple of hours imaging Jupiter. Only got 2 sets of RGB's. The seeing was very ordinary, maybe about 5/10 but I give it a go most clear nights as you just never know when it will be a good one.
Quote:
Originally Posted by DavidU
8 arc sec with detail
skill is the word that comes to mind.
... the most special thing about this image is the Astronomik IR filter. Electromagnetic radiation at these wavelengths is largely unaffected by the amount of our atmosphere it must pass through at altitudes as low as Mars currently is.
Hi Trevor, excuse my ignorance but planetary imaging is like black magic to me. Is this a 2" IR filter we're talking about? And you're unaffected by the seeing?
