Mars sketch, several days after opposition.

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John Baars Netherlands
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Mars sketch, several days after opposition.

#1

Post by John Baars »


Another sketch of Mars. Quite a cold evening, seeing was better than average, high magnifications were possible without shaking. Transparency was fair. I used my 120 mm f/7.5 ED Evostar refractor. It is obvious that the refractor gives more contrast compared to my 140 mm Maksutov. In the second sketch the names of all dark spots, according to Sky & Telescope Mars Profiler.

Mars 14 december 2022 - final.jpg
Mars 14 december 2022 - names.jpg




I hope you enjoyed it.
Refractors in frequency of use : *SW Evostar 120ED F/7.5 (all round ), * Vixen 102ED F/9 (vintage), both on Vixen GPDX.
GrabnGo on Alt/AZ : *SW Startravel 102 F/5 refractor( widefield, Sun, push-to), *OMC140 Maksutov F/14.3 ( planets).
Most used Eyepieces: *Panoptic 24, *Morpheus 14, *Leica ASPH zoom, *Zeiss barlow, *Pentax XO5.
Commonly used bino's : *Jena 10X50 , * Canon 10X30 IS, *Swarovski Habicht 7X42, * Celestron 15X70, *Kasai 2.3X40
Rijswijk Public Observatory: * Astro-Physics Starfire 130 f/8, * 6 inch Newton, * C9.25, * Meade 14 inch LX600 ACF, *Lunt.
Amateur astronomer since 1970.
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Makuser United States of America
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Re: Mars sketch, several days after opposition.

#2

Post by Makuser »


Hi John. A very sketch from your Mars observing session. You have a nice color and many surface features in your sketch and I especially enjoyed the annotated version. Thanks for sharing these with us John and I too like my 6" refractor for the high contrast that it delivers, but being only a Fraunhofer doublet there is also the chromatic aberration.
Marshall
Sky-Watcher 90mm f/13.8 Maksutov-Cassegrain on motorized Multimount
Orion Astroview 120ST f/5 Refractor on EQ3 mount
Celestron Comet Catcher 140mm f/3.64 Schmidt-Newtonian on alt-az mount
Celestron Omni XLT150R f/5 Refractor on CG4 mount with dual axis drives.
Orion 180mm f/15 Maksutov-Cassegrain on CG5-GT Goto mount.
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messier 111 Canada
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Re: Mars sketch, several days after opposition.

#3

Post by messier 111 »


wow , look like a pic , thx .
I LOVE REFRACTORS , :Astronomer1: :sprefac:

REFRACTOR , TS-Optics Doublet SD-APO 125 mm f/7.8 . Lunt 80mm MT Ha Doublet Refractor .

EYEPIECES, Delos , Delite and 26mm Nagler t5 , 2 zoom Svbony 7-21 , Orion Premium Linear BinoViewer .

FILTER , Nebustar 2 tele vue . Apm solar wedge . contrast booster 2 inches .

Mounts , berno mack 3 with telepod , cg-4 motorized , eq6 pro belt drive .

“Your assumptions are your windows on the world. Scrub them off every once in a while, or the light won't come in.”
― Isaac Asimov

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Ylem United States of America
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Re: Mars sketch, several days after opposition.

#4

Post by Ylem »


That's awesome John!

I wish I had that a talent!
Clear Skies,
-Jeff :telescopewink:


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Lady Fraktor Slovakia
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Re: Mars sketch, several days after opposition.

#5

Post by Lady Fraktor »


Really nice John.
I keep thinking I should do this again, one year :)
Gabrielle
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Re: Mars sketch, several days after opposition.

#6

Post by AstroBee »


Your sketches always amaze me, John. Very nice work. So much time and dedication at the eyepiece.
Greg M.~ "Ad Astra per Aspera"
Scopes: Celestron EdgeHD14", Explore Scientific ED152CF & ED127 APO's, StellarVue SV70T, Classic Orange-Tube C-8, Lunt 80mm Ha double-stack solar scope.
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Re: Mars sketch, several days after opposition.

#7

Post by Bigzmey »


Another excellent sketch from the master!
Scopes: Stellarvue: SV102ED; Celestron: 9.25" EdgeHD, 8" SCT, 150ST, Onyx 80ED; iOptron: Hankmeister 6" Mak; SW: 7" Mak; Meade: 80ST.
Mounts: SW: SkyTee2, AzGTi; iOptron: AZMP; ES: Twilight I; Bresser: EXOS2; UA: MicroStar.
Binos: APM: 100-90 APO; Canon: IS 15x50; Orion: Binoviewer, LG II 15x70, WV 10x50, Nikon: AE 16x50, 10x50, 8x40.
EPs: Pentax: XWs & XFs; TeleVue: Delites, Panoptic & Plossls; ES: 68, 62; Vixen: SLVs; Baader: BCOs, Aspherics, Mark IV.
Diagonals: Baader: BBHS mirror, Zeiss Spec T2 prism, Clicklock dielectric; TeleVue: Evebrite dielectric; AltairAstro: 2" prism.
Filters: Lumicon: DeepSky, UHC, OIII, H-beta; Baader: Moon & SkyGlow, Contrast Booster, UHC-S, 6-color set; Astronomik: UHC.

Observing: DSOs: 3106 (Completed: Messier, Herschel 1, 2, 3. In progress: H2,500: 2180, S110: 77). Doubles: 2407, Comets: 34, Asteroids: 255
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Re: Mars sketch, several days after opposition.

#8

Post by helicon »


Beautiful sketch and of course very detailed. A fabulous session, as well! Congratulations on the VROD for today (very well deserved!)
-Michael
Refractors: ES AR152 f/6.5 Achromat on Twilight II, Celestron 102mm XLT f/9.8 on Celestron Heavy Duty Alt Az mount, KOWA 90mm spotting scope
Binoculars: Celestron SkyMaster 15x70, Bushnell 10x50
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John Baars Netherlands
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Re: Mars sketch, several days after opposition.

#9

Post by John Baars »


Thanks to all for your kind words, thanks for the VROD!
This is what one really can call a "visual report" :D
Refractors in frequency of use : *SW Evostar 120ED F/7.5 (all round ), * Vixen 102ED F/9 (vintage), both on Vixen GPDX.
GrabnGo on Alt/AZ : *SW Startravel 102 F/5 refractor( widefield, Sun, push-to), *OMC140 Maksutov F/14.3 ( planets).
Most used Eyepieces: *Panoptic 24, *Morpheus 14, *Leica ASPH zoom, *Zeiss barlow, *Pentax XO5.
Commonly used bino's : *Jena 10X50 , * Canon 10X30 IS, *Swarovski Habicht 7X42, * Celestron 15X70, *Kasai 2.3X40
Rijswijk Public Observatory: * Astro-Physics Starfire 130 f/8, * 6 inch Newton, * C9.25, * Meade 14 inch LX600 ACF, *Lunt.
Amateur astronomer since 1970.
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Re: Mars sketch, several days after opposition.

#10

Post by Unitron48 »


Well done, John and congrats on your VROD recognition.

Dave
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John Baars Netherlands
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Re: Mars sketch, several days after opposition.

#11

Post by John Baars »


Makuser wrote: Thu Dec 15, 2022 4:18 pm Hi John. A very sketch from your Mars observing session. You have a nice color and many surface features in your sketch and I especially enjoyed the annotated version. Thanks for sharing these with us John and I too like my 6" refractor for the high contrast that it delivers, but being only a Fraunhofer doublet there is also the chromatic aberration.
Thanks. There is a black and white pre-version of the sketch. That is the one made at the telescope. Usually I sketch a better B&W version when I come inside. The color version is usually made the next day. Better light, more control etc.
I had a 6 inch f/5 too in the near past and even worked on it to get the axial coma out. I am not impressed by chromatic aberration, I don't even care. The six inch gave the same amount of details as the 4.7 inch ED. The reason I sold it again was its weight.
messier 111 wrote: Thu Dec 15, 2022 6:00 pm wow , look like a pic , thx .
Thanks,
Yes I hope so, I try to get resemblance to the image in the eyepiece
Ylem wrote: Fri Dec 16, 2022 11:12 pm That's awesome John!

I wish I had that a talent!
Thank you.
There is nothing wrong with a basic Black and White sketch to start with, even when if it is not an exact copy of the eyepiece-view.
Lady Fraktor wrote: Sat Dec 17, 2022 5:48 am Really nice John.
I keep thinking I should do this again, one year :)
Thanks!
Three pencils, HB, 2H en 3B, a piece of paper, a soft eraser and a fingertip for smearing are enough for a nice Black and White sketch. It is all a matter of doing it often.
AstroBee wrote: Sat Dec 17, 2022 7:44 am Your sketches always amaze me, John. Very nice work. So much time and dedication at the eyepiece.
Thank you!
The sketch at the eyepiece is made much more quicker then the final one. Working out the final sketch costs the most time. I made a final one before this one, didn't like it ( too much smearing, lots of erasing gives too much smudging) and threw it away. But time is on my side..:-)
Bigzmey wrote: Sat Dec 17, 2022 6:08 pm Another excellent sketch from the master!
Thanks, considering other sketches I see I am just a good apprentice. But if you say so....
helicon wrote: Sat Dec 17, 2022 6:32 pm Beautiful sketch and of course very detailed. A fabulous session, as well! Congratulations on the VROD for today (very well deserved!)
Thanks for the VROD!
Luckily at the eyepiece every detail can be studied separately. The biggest pitfall for a sketcher is wanting everything on paper at once. At first glance all you have to do is to establish the positions. The biggest luck is that the sketch is an add up of all details.
Unitron48 wrote: Sat Dec 17, 2022 10:06 pm Well done, John and congrats on your VROD recognition.


Dave
Thank you!
Refractors in frequency of use : *SW Evostar 120ED F/7.5 (all round ), * Vixen 102ED F/9 (vintage), both on Vixen GPDX.
GrabnGo on Alt/AZ : *SW Startravel 102 F/5 refractor( widefield, Sun, push-to), *OMC140 Maksutov F/14.3 ( planets).
Most used Eyepieces: *Panoptic 24, *Morpheus 14, *Leica ASPH zoom, *Zeiss barlow, *Pentax XO5.
Commonly used bino's : *Jena 10X50 , * Canon 10X30 IS, *Swarovski Habicht 7X42, * Celestron 15X70, *Kasai 2.3X40
Rijswijk Public Observatory: * Astro-Physics Starfire 130 f/8, * 6 inch Newton, * C9.25, * Meade 14 inch LX600 ACF, *Lunt.
Amateur astronomer since 1970.
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Baurice
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Re: Mars sketch, several days after opposition.

#12

Post by Baurice »


I've only just seen this. I'm VERY impressed. Due to weather and back trouble I missed Mars. Better detail than I can capture on camera. Is it a pencil sketch or do you draw them by computer?
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Re: Mars sketch, several days after opposition.

#13

Post by mariosi »


Great work John!!! Beautiful Drawing , observation and presentation.

Marios
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