Jump to content


Photo

Mars 26/03/'14

  • Please log in to reply
12 replies to this topic

#1 Kris.

Kris.

    Surveyor 1

  • *****
  • Posts: 1762
  • Joined: 16 Sep 2004
  • Loc: Belgium

Posted 26 March 2014 - 03:23 AM

the view i had tonight of the 'boring' side of mars was easily the best i've ever had. probably due to the large mist/frost/cloud (?) over olympus mons, giving way to it's location. but there was also a lot of fine detail in the lighter desert immediately around the volcanoe, i didn't attempt to reproduce because it was too difficult, so the sketch does not really do justice to the view i had, but still i'm pleased to have seen some features which are new to me! :jump:

the npc was visible, as a cloudy feature at 7 and 2 'o clock. i currently don't have acces to my standard scanner and computer, so this is the best i can do.

Posted Image

#2 Ed D

Ed D

    Gemini

  • *****
  • Posts: 3079
  • Joined: 30 Apr 2010
  • Loc: Sunny South Florida

Posted 26 March 2014 - 07:46 AM

That's a really nice sketch with a lot of detail, boring side or not. Great catch on the cloud over Olympus Mons. :bow:
Also, good use of filters for details and putting it all together in your sketch. :waytogo:

Ed D

#3 niteskystargazer

niteskystargazer

    Gemini

  • *****
  • Posts: 3140
  • Joined: 05 Oct 2009
  • Loc: 41-43'-28" N 87-42'-39" W

Posted 26 March 2014 - 01:48 PM

Kris,

Very nice sketch of Mars :).

CS,KLU,

:thanx:,

Tom

#4 azure1961p

azure1961p

    Voyager 1

  • *****
  • Posts: 10432
  • Joined: 17 Jan 2009
  • Loc: USA

Posted 26 March 2014 - 09:42 PM

Kris,

This is a very nice sketch! The desert sands hue is well done as are the relative intensities and placement. I'm psyched its gotten over 14" now and can't wait till next month when I observe again!

Keep em' coming!

Pete

#5 frank5817

frank5817

    Cosmos

  • *****
  • Posts: 8500
  • Joined: 13 Jun 2006
  • Loc: Illinois

Posted 26 March 2014 - 10:54 PM

Kris,

A very impressive capture of Mars. Much fine detail.
Cloud capture and polar region great.

Frank :)

#6 dweller25

dweller25

    Apollo

  • -----
  • Posts: 1462
  • Joined: 30 Aug 2007
  • Loc: Lancashire, UK

Posted 27 March 2014 - 02:17 AM

Kris, Considering how low Mars is at our latitude that is a very good observation.

#7 stanislas-jean

stanislas-jean

    Vanguard

  • -----
  • Posts: 2053
  • Joined: 22 Oct 2008

Posted 27 March 2014 - 02:35 AM

Kris I suggest you mark the aperture to 200-230mm in order to reduce the light glaring. In this status, some low contrasted features will appear to you at the eyepiece with a little more possibility of magnification.
An exit pupill diameter of 0.6-0.7mm at the eyepiece is giving a more suitable light level for at the planet disk.
CM 200° is the the "featureless" planet side of Mars.
Good skies.
Stanislas-Jean

#8 Kris.

Kris.

    Surveyor 1

  • *****
  • Posts: 1762
  • Joined: 16 Sep 2004
  • Loc: Belgium

Posted 27 March 2014 - 02:55 AM

Thanks everyone,

@ Stanislas: thanks for the tip, i'll try that next time.
an exit pupil of 0.6 - 0.7mm for my scope (D:30cm, FL:1500mm, f/5) would mean a 4mm eyepiece yielding a 375x magnification, which is rarely usable under our skies... (especially now that mars is low in the sky).

#9 Jef De Wit

Jef De Wit

    Mercury-Atlas

  • *****
  • Posts: 2787
  • Joined: 06 Mar 2009
  • Loc: Hove, Belgium

Posted 27 March 2014 - 10:05 AM

Great catch!

#10 stanislas-jean

stanislas-jean

    Vanguard

  • -----
  • Posts: 2053
  • Joined: 22 Oct 2008

Posted 28 March 2014 - 01:54 AM

Thanks everyone,

@ Stanislas: thanks for the tip, i'll try that next time.
an exit pupil of 0.6 - 0.7mm for my scope (D:30cm, FL:1500mm, f/5) would mean a 4mm eyepiece yielding a 375x magnification, which is rarely usable under our skies... (especially now that mars is low in the sky).


Brightness of the image at the eyepiece can be adjusted also when using grey filters.
Stanislas-Jean

#11 Tommy5

Tommy5

    Mercury-Atlas

  • -----
  • Posts: 2814
  • Joined: 28 Mar 2004
  • Loc: Chicagoland

Posted 28 March 2014 - 05:35 PM

very nice Mars sketch, nice use of color, thanks for sharing.

#12 CarlosEH

CarlosEH

    Fly Me to the Moon

  • *****
  • Posts: 7266
  • Joined: 19 Jan 2005
  • Loc: Pembroke Pines, Broward County, Florida

Posted 28 March 2014 - 10:39 PM

Kris,

An excellent observation of Mars. You have recorded Elysium and a cloud over it very nicely. Thank you for sharing it with us all.

Regards,
Carlos

#13 Aquarellia

Aquarellia

    Viking 1

  • -----
  • Posts: 800
  • Joined: 27 Oct 2012
  • Loc: Provence, France

Posted 29 March 2014 - 10:31 AM

Superb!






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics