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Mars sketches

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14 years 10 months ago - 14 years 10 months ago #83449 by jeyjey
Mars sketches was created by jeyjey
I did another Mars sketch on the 29th which just happened to be of a central meridian almost exactly 180 degrees from the one I did earlier in the month.


Nikon 18x70s / UA Millennium                              Colorado:
Solarscope SF70 / TV Pronto / AP400QMD             Coronado SolarMax40 DS / Bogen 055+3130
APM MC1610 / Tak FC-125 / AP1200GTO               Tak Mewlon 250 / AP600EGTO
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Last edit: 14 years 10 months ago by jeyjey.

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14 years 10 months ago - 14 years 10 months ago #83450 by jeyjey
Replied by jeyjey on topic Re:Mars sketches
Given that the two sketches were 180° apart and therefore represent the "whole" of Mars, I combined the two disks from the two sketches into a composite presentation.



(The disks are also rotated & flipped to the "standard" orientation. I sketch them flipped L/R because I use a diagonal in a Cassegrain scope.)

Nikon 18x70s / UA Millennium                              Colorado:
Solarscope SF70 / TV Pronto / AP400QMD             Coronado SolarMax40 DS / Bogen 055+3130
APM MC1610 / Tak FC-125 / AP1200GTO               Tak Mewlon 250 / AP600EGTO
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Last edit: 14 years 10 months ago by jeyjey.

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14 years 10 months ago #83460 by donalmcnamara
Replied by donalmcnamara on topic Re:Mars sketches
Impressive. Like the composite also.
Regards
Donal

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14 years 10 months ago #83461 by Frank Ryan
Replied by Frank Ryan on topic Re:Mars sketches
Very nice!
what media did you use?

My Astrophotography
Shannonside Astronomy Club __________________________________________
Meade ETX-125PE, Bresser 10 x 50 Binos & Me Peepers

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14 years 10 months ago #83462 by jeyjey
Replied by jeyjey on topic Re:Mars sketches
Thanks, Donal and Frank!

The sketches are HB pencil on white (160gsm) cartridge paper. I scan them into Photoshop and then:
  1. invert the background
  2. adjust the contrast on the planet's disk to match what I see (I usually sketch in somewhat higher contrast to keep my scanner from losing detail)
  3. add the yellowish colour that I see in the eyepiece (where's the red, anyway?)
In the Jan29 one I also added the bit of limb haze in Photoshop (and removed the light guideline I had sketched to demarcate where I saw it).

Cheers,
-- Jeff.

Nikon 18x70s / UA Millennium                              Colorado:
Solarscope SF70 / TV Pronto / AP400QMD             Coronado SolarMax40 DS / Bogen 055+3130
APM MC1610 / Tak FC-125 / AP1200GTO               Tak Mewlon 250 / AP600EGTO

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14 years 10 months ago #83469 by michaeloconnell
Replied by michaeloconnell on topic Re:Mars sketches
Very nice work Jeff!
An inspiration to us all to get out there and draw what the eye sees.

Michael.

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