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frank5817
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Re: Eye of Mars 12.07.07 new [Re: Sol Robbins]
      #2040432 - 12/09/07 10:59 PM

Carlos,

Wow! These are beautiful sketches of Mars. And thanks for filling in the geography too. Your seeing was not perfect and without filters you included a great amount of detail and true color. Fantastic.

Frank

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rusirius6278
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Re: Eye of Mars 12.07.07 new [Re: frank5817]
      #2040519 - 12/09/07 11:55 PM

Carlos,

outstanding observation report with great descriptions of all the detail, etc., you saw...and as shown in those beautiful sketches...i was waiting for this...and i`ll be looking forward to your next ones...



Jim

--------------------
current scopes

Vixen ED103SWT
Vixen ED102S
C-102AZ/HD
StarMax 127
Jason 60/11.7

UO HD Abbe Orthos - 5mm, 6mm, 7mm, 9mm
Older UO Ortho - 4mm
Celestron 2x Ultima Barlow

and many other scopes i`ve been fortunate enough to check out...



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CarlosEH
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Re: Eye of Mars 12.07.07 new [Re: rusirius6278]
      #2041956 - 12/10/07 05:32 PM

Thank you all for the wonderful compliments on my set of Mars observations. I was happy to have finally made my own observation of the red planet. I hope to make many more in the future. I look forward to everyone's observations as well.

Carlos

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Special Ed
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Re: Eye of Mars 12.07.07 new [Re: CarlosEH]
      #2042118 - 12/10/07 06:27 PM

Carlos,

It's very good to see one of your excellent renderings of your Mars observations. May you have many more nights of good weather--for your sake and ours!

--------------------

Michael Rosolina
Celestron CGE Pro 1400 f/11 SCT
1980 Orange Tube C8 f/10 SCT
4.25" f/4.2 Astroscan Reflector
50mm f/10 Galileoscope
40mm PST f/10
APM Germany HD 15x70 binoculars
Canon 12x36 IS II binoculars
Mark I Eyeball
My CN Gallery


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Tommy5
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Re: Eye of Mars 12.07.07 new [Re: Special Ed]
      #2042568 - 12/10/07 09:16 PM

great sketch of mars, the Eye of Mars looks very realistic.

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Erix
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Reged: 12/25/04
Posts: 24022
Loc: Texas, USA
Re: Eye of Mars 12.07.07 new [Re: Tommy5]
      #2042828 - 12/10/07 10:52 PM

Wonderful job, everyone that's contributed!

To help others observe and sketch this target, I would like to encourage everyone to give some tips, mini tutorials, etc to our current target thread.

Mars target thread for tutorials and tips

It's a great chance for us to learn from/help each other with the various techniques while Mars is at its best this time of the year.



--------------------
Erika
Automatic doors make me feel like a Jedi.

Zhumell 16", 10" LX200 Classic,Celestron 102 XLT, ETX70-AT, DS Maxscope 60mm, AT6RC
PCW Memorial Observatory


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JoeF
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Re: Eye of Mars 12.07.07 new [Re: Erix]
      #2044611 - 12/11/07 07:42 PM Attachment (65 downloads)

Some great pictures here everyone.
Heres my third effort of the season, I wanted to do two in quick succession to see if I would find any difference. First time I've tried colour too.
Hot off the press! I still have all my warm gear on and once I've walked the dog I'll be back out again. Will also have to get a map out and consult my Travellers Guide to Mars to see where I've been.

Joe

Attachment

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Orion Optics 200mm f6 & Accufocus on GP/E Mount
Opticron BGA 10x50 Binos
NELM 5.2 rural skies
Under tripod canine footwarmer





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JoeF
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Re: Eye of Mars 12.07.07 new [Re: JoeF]
      #2044785 - 12/11/07 09:25 PM Attachment (70 downloads)

Here is the 1st picture in the post above after playing about in the computer to give a slightly more realistic eyepiece view.

Joe

Attachment

--------------------
Orion Optics 200mm f6 & Accufocus on GP/E Mount
Opticron BGA 10x50 Binos
NELM 5.2 rural skies
Under tripod canine footwarmer





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Sol Robbins
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Re: Eye of Mars 12.07.07 new [Re: JoeF]
      #2044916 - 12/11/07 10:19 PM

Joe,

I like how you show the, for lack of a better word, raw sketches and the final work up.

It all adds up to a great eyepiece impression.

Thanks,

--------------------
S.R.


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Tommy5
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Re: Eye of Mars 12.07.07 new [Re: Sol Robbins]
      #2044928 - 12/11/07 10:25 PM

Excellant Mars sketches Joe, keep'em coming.

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Catapoman
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Re: Eye of Mars 12.07.07 new [Re: Tommy5]
      #2044943 - 12/11/07 10:33 PM

Great work, Joe! Your re-work shows realistic effects of viewing through the atmosphere.

--------------------
A 12.5" Dob, a Mewlon, 2 EDs and a GM-8.




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frank5817
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Re: Eye of Mars 12.07.07 new [Re: Catapoman]
      #2045043 - 12/11/07 11:23 PM

Joe,

Wonderful Mars sketching all 3 times.
Your computer sketch is very much the eyepiece view.

Frank

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Kris.
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Re: Eye of Mars 12.07.07 new [Re: frank5817]
      #2045484 - 12/12/07 07:56 AM

great sketches Carlos & Joe! i'm still waiting to get my first solis lacus view this year

joe, your colorwork is just what i am trying to get right for almost 6 months now! very realistic, I just can't seem to blend the dark markings in the desserts and *not* making it all look too contrasty. can you tell what program you use and how you do that?

--------------------
Kris

To be old & wise, you first gotta be young & stupid

my website

my CN sketch & picture gallery


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Kris.
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Mars 12-12-07 [Re: Kris.]
      #2045525 - 12/12/07 08:28 AM

we enjoyed a beautifull cristal-clear night yesterday, with temperatures a few degrees below 0░C, just the conditions i have been waiting for a long time and luckily seeing co÷perated as well to make perhaps the best viewing session for me this year

since my latest view mars is now as good as 100% illuminated and almost 16" big! i could push magnifications up to 416x using a 6mm UO Ortho EP + 2.5x powermate. it's also the first time i could try out the Sirius Optics Variable Filter System. i couldn't wait to see the effects on Mars, Sol Robbins is very enthousiastic about this filter because it offers an infinite amount of filter settings. it's a fun little thing, it gave me best views in the pink, green and ochre/brown area's (i didn't pay attention to the setting numbers, that's for next time).
but the rotating wheel isn't easy to use, i've got to lift it a bit up and than rotate it, there's also not much grip on the disk...

Syrtis major was the most promiment feature, but it was Sinus Sabaeus i was waiting for, so i've made 2 sketches roughly 1.5 hours apart.

most noticeable was the large and bright NPH with a bluish hue again. hellas was the next brightest feature, but not as bright as 2 years ago imo. the rough outlines of syrtis major, sinus sabaeus & mare serpentis were easy spotted. i could see some detail inside syrtis major, most surprising was a dark triangular shape at S.Major's tip, and some sort of spike pointing to Sinus Sabaeus. Sinus Sabaeus was darkest, followed by the north border of hellas and a dark streak in mare serpentis.

i'm really not happy with the color of the dark markings, i have used brown colors for it and also grey (as this sketch) but it doesn't look realistic enough to me, can anyone give me some pointers to what colors i could use?



--------------------
Kris

To be old & wise, you first gotta be young & stupid

my website

my CN sketch & picture gallery


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Kris.
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Re: Mars 12-12-07 [Re: Kris.]
      #2045530 - 12/12/07 08:34 AM

later the seeig was a bit less good, most of the finer detail wasn't visible anymore to me. i couldn't see the split in dawes bay (sinus meridiani) but i did see a 'gap' just before sinus meridiani.

i am surprised because the time in UT of my sketches don't match the ikemura simulations at all, it looks as if i'm about 2 hours wrong i have absolutely no idea how that's possible. so the CM i wrote down on the sketches is not so accurate



--------------------
Kris

To be old & wise, you first gotta be young & stupid

my website

my CN sketch & picture gallery


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CarlosEH
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Re: Eye of Mars 12.07.07 [Re: frank5817]
      #2045681 - 12/12/07 09:49 AM Attachment (78 downloads)

Thank you all for the compliments on my Mars observation. I was very happy to finally observe the red planet once more.

Joe- An excellent set of Mars observations. From the date and times given I estimate the central meridian to be approximately 320* West. I have labeled the major albedo features. I hope that this helps. Thank you for sharing these with us all.

Kris- Excellent observations of Mars showing the Syrtis Major region. You have captured a good amount of detail over the Martian disk. Thank you for sharing it with us all.

Carlos

Attachment

--------------------


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JoeF
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Re: Eye of Mars 12.07.07 [Re: CarlosEH]
      #2045728 - 12/12/07 10:14 AM

Thank you Carlos.

I must admit I find identifying features I see on Mars extremey difficult. I avoid looking at any simulations before I observe as I suspect that they would influence my sketches (ah yes that must be Hellas so I'll make it brighter etc). That was another reason for doing the two sketches, too try to evaluate what I actually see and what I might just think I'm seeing.
Your help is much appreciated and now I shall spend some time looking to see how others have drawn and photographed these areas.



Joe

--------------------
Orion Optics 200mm f6 & Accufocus on GP/E Mount
Opticron BGA 10x50 Binos
NELM 5.2 rural skies
Under tripod canine footwarmer





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rusirius6278
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Re: Eye of Mars 12.07.07 [Re: JoeF]
      #2046265 - 12/12/07 02:49 PM

good sketches in/around the Syrtis Major region, Joe and Kris...

Kris...the better seeing you had shows thru in the clarity of albedo features in your sketch...especially the 1st one...as you know, i had an excellent view of this region a couple weeks ago in the morning twi-light...way to go...keep up the good work.

Joe...good, realistic sketches...with several albedo features, etc., in the Syrtis Major, etc., regions seen/sketched...your ep sketch is so good that you captured the brightness/washing out effect quite well...which is being reported by many Mars observers using 8" and larger instruments...way to go...keep up the good work.

looking forward to your next sketches/observing reports...

Jim

--------------------
current scopes

Vixen ED103SWT
Vixen ED102S
C-102AZ/HD
StarMax 127
Jason 60/11.7

UO HD Abbe Orthos - 5mm, 6mm, 7mm, 9mm
Older UO Ortho - 4mm
Celestron 2x Ultima Barlow

and many other scopes i`ve been fortunate enough to check out...



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Special Ed
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Reged: 05/18/03
Posts: 6339
Loc: Greenbrier Co., WV 38N, 80W
Re: Eye of Mars 12.07.07 new [Re: rusirius6278]
      #2046860 - 12/12/07 07:48 PM

JoeF,

Glad you're posting your sketches here--they are very good observations--as demonstrated by how Carlos was able to sort them out.

--------------------

Michael Rosolina
Celestron CGE Pro 1400 f/11 SCT
1980 Orange Tube C8 f/10 SCT
4.25" f/4.2 Astroscan Reflector
50mm f/10 Galileoscope
40mm PST f/10
APM Germany HD 15x70 binoculars
Canon 12x36 IS II binoculars
Mark I Eyeball
My CN Gallery


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Special Ed
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Re: Mars 12-12-07 new [Re: Kris.]
      #2046907 - 12/12/07 08:06 PM

Kris,

Congratulations on making the most of a night of good seeing. Computer renderings utilize a skill all to itself so I don't mind if the dark areas have more contrast than seen at the ep, especially when noted as you did.
It just draws attention to the fact that these areas had more contrast or appeared darker than their surroundings. That kind of contrast enhancement happens sometimes with image processing.


Quote:

i couldn't see the split in dawes bay (sinus meridiani) but i did see a 'gap' just before sinus meridiani.





I could be wrong, but I believe that "gap" you refer to shows a hint of the southern edge of the crater Schiaperelli. The actual crater cannnot be resolved.

--------------------

Michael Rosolina
Celestron CGE Pro 1400 f/11 SCT
1980 Orange Tube C8 f/10 SCT
4.25" f/4.2 Astroscan Reflector
50mm f/10 Galileoscope
40mm PST f/10
APM Germany HD 15x70 binoculars
Canon 12x36 IS II binoculars
Mark I Eyeball
My CN Gallery

Edited by Special Ed (12/13/07 11:57 AM)


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