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Erix
Toad Lily


Reged: 12/25/04
Posts: 24022
Loc: Texas, USA
Re: Mars 02/01/08 new [Re: Sol Robbins]
      #2102304 - 01/07/08 12:29 AM

Excellent job everyone!

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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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Kris.
Carpal Tunnel


Reged: 09/16/04
Posts: 1677
Loc: Belgium
Re: Mars 02/01/08 new [Re: Erix]
      #2102888 - 01/07/08 11:05 AM

very nice sketch Michael, thanks for the comment on the color of my sketch, i try to approach it as accurate as possible but it's difficult! i hope you'll like the color of my next sketch as well

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Kris

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

my website

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Kris.
Carpal Tunnel


Reged: 09/16/04
Posts: 1677
Loc: Belgium
Mars 06/01/08 new [Re: Kris.]
      #2102914 - 01/07/08 11:17 AM

i had very poor seeing conditions for my latest sketch literally watching through the clouds. they seem to act as a good filter, but the constant change in brightness of the martian disk is fatiguing for my eye! when the clouds dissapeared it was clear the seeing was so poor that this view would not show as much detail as some of my previous views.

i *think* a saw the north polar hood as 'jagged' and the area around Chryse was obviously lighter than the surrounding planes.
solis lacus was rotating on the disk at right but i couldn't see that. i did see sinus meridiani at the left edge but after cheking the maps, i placed it too low on the disk.
the south pole area (Argyre??) was lighter too, but not as much as Chryse.



good mars-viewing to all!

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

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

my website

my CN sketch & picture gallery


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JoeF
Pooh-Bah


Reged: 03/18/05
Posts: 1193
Loc: 'Sunny Loftus' - N E England
Re: Mars 06/01/08 new [Re: Kris.]
      #2104135 - 01/07/08 08:56 PM Attachment (66 downloads)

Heres my latest sketches of Mars done tonight under better than average seeing conditions. Collimation seems to be a bit out of whack though, nevertheless the views were pretty good. I've posted the page from my log together with 'enhanced' versions giving a slightly more realistic eyepiece view.

I believe I have:

Top (20:00hrs)
Mare Erythnaem at South (though not showing as brighter feature and Mare Acidalium clearly showing at North.

Bottom (00:30hrs)
Solus Lacus at South (but not showing)
Arcadia at North.

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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Sol Robbins
Carpal Tunnel


Reged: 12/01/03
Posts: 1985
Re: Mars 06/01/08 new [Re: JoeF]
      #2104208 - 01/07/08 09:33 PM

Kris and Joe,

Great sketches.

Viewing the double digit degree central meridian on Mars has eluded me during this apparition.

Thanks,

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S.R.


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Kris.
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Reged: 09/16/04
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Loc: Belgium
Re: Mars 06/01/08 new [Re: Sol Robbins]
      #2105421 - 01/08/08 01:30 PM

excellent sketches Joe, i find the colors very good and they show just how difficult it can be sometimes viewing mars. i believe you're right about the observed features. your 2 sketches and mine actually look quite alike!

Sol; i've been presented the same sides of mars also too much to my liking...


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CarlosEH
Postmaster


Reged: 01/19/05
Posts: 6714
Loc: Pembroke Pines, Broward County...
Re: Mars 06/01/08 new [Re: Kris.]
      #2105664 - 01/08/08 03:43 PM

Kris and Joe,

Outstanding observations of Mars that are accurate and realistic. You both have recorded an impressive amount of detail over the Martian disk. Thank you for sharing them with us all.

Carlos

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Special Ed
Postmaster


Reged: 05/18/03
Posts: 6339
Loc: Greenbrier Co., WV 38N, 80W
Re: Mars 06/01/08 new [Re: CarlosEH]
      #2106304 - 01/08/08 08:29 PM Attachment (64 downloads)

Kris and Joe,

Nice work! Mars is shy about giving up details but you both have done a great job going after them.

I observed Mars on Jan. 8th as well under average conditions for seeing and transparency. It was clear (sort of) and temperatures were 40 warmer than my observation four days ago, so I could hardly pass up the opportunity.

It was interesting to see that the southern regions and following limb were obscured by broad clouds. Contrast was low, but that may have been caused mostly by the transparency. I was disappointed that I couldn't detect Olympus Mons--I think my collimation needs tweaked too.

The sketch was done with an HB pencil and some new watercolor pencils that I just got--they seem to blend pretty well. The blue on the f limb wasn't picked up by the scanner. I fooled around a little with the presentation, too. Hope everyone likes it.

Best to all,

Attachment

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

Michael Rosolina
Celestron CGE Pro 1400 f/11 SCT
1980 Orange Tube C8 f/10 SCT
4.25" f/4.2 Astroscan Reflector
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40mm PST f/10
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frank5817
Postmaster


Reged: 06/13/06
Posts: 7212
Loc: Illinois
Re: Mars 06/01/08 new [Re: Special Ed]
      #2106331 - 01/08/08 08:43 PM

Kris, Joe and Michael

These are all fantastic Mars sketches. You all have used color to great advantage. All of you have made excellent sketches here. I for one am thrilled --nothing but clouds for a long time now.

Frank

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My Gallery


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Tommy5
Carpal Tunnel


Reged: 03/28/04
Posts: 2523
Loc: Chicagoland
Re: Mars 06/01/08 new [Re: frank5817]
      #2106458 - 01/08/08 09:51 PM

Great sketches,Kris, Joe and Micheal,i'mm glad some of you have enjoyed the mars show.

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novbabies
Postmaster


Reged: 06/05/05
Posts: 15678
Loc: Northern Georgia!
Re: Mars 06/01/08 new [Re: Tommy5]
      #2106956 - 01/09/08 05:15 AM

Mike, nice representation of the low conrast !

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Good Seeing!

Mark

Orion 12" XTi f/4.9


VERY old Edmund 6" f/8 reflector
Assorted binoculars


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Special Ed
Postmaster


Reged: 05/18/03
Posts: 6339
Loc: Greenbrier Co., WV 38N, 80W
Re: Mars 06/01/08 new [Re: novbabies]
      #2109005 - 01/09/08 10:47 PM

Thanks, guys. Frank, Tommy--sorry the weather hasn't been favorable there in Chicagoland--I miss your take on the Red Planet. It can't stay cloudy forever...

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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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Sol Robbins
Carpal Tunnel


Reged: 12/01/03
Posts: 1985
1.12.08-Mars Sketch with 3" Refractor new [Re: Special Ed]
      #2114000 - 01/11/08 09:28 PM Attachment (80 downloads)

Hi,

The sky cleared. The wind died down. I broke out my little refractor & made this pencil sketch of Mars. The "Eye of Mars" was prominent. I used a Wratten 21 Orange filter for this observation. The limb brightenings were added without any filters.

A couple of my neighbors who are in middle school took a peek as well. They too saw some "fuzzy patches" on the disk. They took my sketch and said they'll do a 'show & tell' in school next week.

I used a 2H pencil, blended with my fingers and erased out the limb brightenings.

Best,

Attachment

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


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StarStuff1
Carpal Tunnel


Reged: 04/01/07
Posts: 2805
Loc: South of the Mason-Dixon Line
Re: 1.12.08-Mars Sketch with 3" Refractor new [Re: Sol Robbins]
      #2114061 - 01/11/08 09:55 PM

Sol, I asume you used the 80mm Planet Hunter refractor? I have been quite disappointed with the views of Mars with my 8-in f/6 newtonian, Mars was too bright. Although dimmer, I could see just as much thru my 80mm PH.

BTW, great sketch!

Terry

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Tools that make objects very far away appear much closer than they actually are.


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Sol Robbins
Carpal Tunnel


Reged: 12/01/03
Posts: 1985
Re: 1.12.08-Mars Sketch with 3" Refractor new [Re: StarStuff1]
      #2114083 - 01/11/08 10:04 PM

Thenks Terry,

I uploaded the sketch again as it looked like it got truncated.

Yes, it is the 80mm Planet Hunter. I got mine at the last NEAF. Its purported to be a prototype. Bill Burgess seemed a bit reluctant to part with the scope. Very sharp optically and its exceeded my expectations.

I just noticed I misspelled "eyepiece" in the sketch as I was talking to my neighbors kids when finishing up the sketch.

Best,

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


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Tommy5
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Reged: 03/28/04
Posts: 2523
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Re: 1.12.08-Mars Sketch with 3" Refractor new [Re: Sol Robbins]
      #2114128 - 01/11/08 10:30 PM

Another great sketch, with your sharp little refractor,it is nice to see Mars spin round and round on the sketching forum as endless clouds have blocked my view for weeks ,thanks again for posting, seeing the Eye of mars for the first time in '03 was one of my highlights in shallow sky observing thanks again for posting, at least i have a lot of free time to reread your excellant book.

Edited by Tommy5 (01/11/08 10:31 PM)


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Sol Robbins
Carpal Tunnel


Reged: 12/01/03
Posts: 1985
Re: 1.12.08-Mars Sketch with 3" Refractor new [Re: Tommy5]
      #2114135 - 01/11/08 10:35 PM

Thanks T.

I hope you get out soon as Mars must be getting smaller. At least now you can start viewing it at about 7pm local time.

I'll hope you get a claering out real soon!

Best,

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


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frank5817
Postmaster


Reged: 06/13/06
Posts: 7212
Loc: Illinois
Re: 1.12.08-Mars Sketch with 3" Refractor new [Re: Sol Robbins]
      #2114358 - 01/12/08 12:17 AM

Sol,

Fantastic sketch of Mars. I really enjoy the magic you work with not only the pencils but also the eraser. The blending is amazing.

Frank

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My Gallery


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Sol Robbins
Carpal Tunnel


Reged: 12/01/03
Posts: 1985
Re: 1.12.08-Mars Sketch with 3" Refractor new [Re: frank5817]
      #2114713 - 01/12/08 08:12 AM

Many thanks Frank.

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


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Sol Robbins
Carpal Tunnel


Reged: 12/01/03
Posts: 1985
1.24.08 Mars new [Re: Sol Robbins]
      #2141577 - 01/24/08 12:02 AM Attachment (54 downloads)

Hi,

I got out tonight to check out a couple of new eyepieces. Seeing was average for this Mars sketch. I had a very hard time doing this one.

I changed techniques that I usually use in that most of the sketch was done with various blending stumps. Tortillions that are as thick as a pencil can actually be sharpened in an electric pencil sharpener. I had a bunch of these with tips varying from very sharp to very blunt, as well as degrees from clean to dirty (with graphite). I guess the main differences using these rather than pencils is accuracy and speed. Pencils can be more accurate but the stumps are faster in laying down graphite.

Anyway, here's the sketch.

Attachment

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


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