Jump to content


Photo

March 18th sun sketch

  • Please log in to reply
11 replies to this topic

#1 Andrev

Andrev

    Skylab

  • *****
  • Posts: 4113
  • Joined: 08 Feb 2011
  • Loc: Montreal, Quebec, Canada

Posted 18 March 2013 - 10:17 PM

Hi.

6th sketch in a row what is excellent according to the few sunshine we got. Most have be done in a very small hole in the cloud cover.

As promised, I changed the color around the sunspots.

Andre.

Posted Image

#2 Aquarellia

Aquarellia

    Viking 1

  • -----
  • Posts: 755
  • Joined: 27 Oct 2012
  • Loc: Provence, France

Posted 19 March 2013 - 01:10 AM

Interesting view of the penombra (?) you have a very nice scope to see this André ! The details you reach are uncredible.

#3 Andrev

Andrev

    Skylab

  • *****
  • Posts: 4113
  • Joined: 08 Feb 2011
  • Loc: Montreal, Quebec, Canada

Posted 19 March 2013 - 10:20 AM

Michel

I draw the sunspots first detuning the filter what give me a similar view as white light in very orange tint with much more detils around the sunspots including the penombra (I don't think is the correct name). Full tuned h-alpha, I don't see them.

Andre

#4 JeanB

JeanB

    Apollo

  • -----
  • Posts: 1330
  • Joined: 11 Jul 2011
  • Loc: Montreal, Canada

Posted 19 March 2013 - 12:24 PM

André,

your technique is astonishing!

:jawdrop:

Jean

#5 niteskystargazer

niteskystargazer

    Gemini

  • *****
  • Posts: 3048
  • Joined: 05 Oct 2009
  • Loc: 41-43'-28" N 87-42'-39" W

Posted 19 March 2013 - 02:32 PM

Andre,

Very good sketch of the Sun Mar. 18th. :cool:.

CS,KLU,

:thanx:,

Tom

#6 Andrev

Andrev

    Skylab

  • *****
  • Posts: 4113
  • Joined: 08 Feb 2011
  • Loc: Montreal, Quebec, Canada

Posted 19 March 2013 - 03:53 PM

Thanks Jean and Tom.

Andre

#7 Jef De Wit

Jef De Wit

    Mercury-Atlas

  • *****
  • Posts: 2729
  • Joined: 06 Mar 2009
  • Loc: Hove, Belgium

Posted 20 March 2013 - 09:14 AM

I can only repeat what I post everytime: :applause:

#8 frank5817

frank5817

    Cosmos

  • *****
  • Posts: 8372
  • Joined: 13 Jun 2006
  • Loc: Illinois

Posted 20 March 2013 - 10:24 AM

Andre,

:waytogo:

Frank :)

#9 starsoup

starsoup

    Mariner 2

  • -----
  • Posts: 266
  • Joined: 21 Jun 2008
  • Loc: AR

Posted 20 March 2013 - 11:44 AM

My mind was not prepared for this great drawing....Excellent!!

#10 mikesemmler

mikesemmler

    Messenger

  • -----
  • Posts: 413
  • Joined: 01 Jun 2009

Posted 20 March 2013 - 01:23 PM

very good job

#11 Andrev

Andrev

    Skylab

  • *****
  • Posts: 4113
  • Joined: 08 Feb 2011
  • Loc: Montreal, Quebec, Canada

Posted 20 March 2013 - 05:03 PM

Thank you all my old friends but especially to the new ones. Thanks a lot. I invite you to follow my sketch everytime the sun is present here...

Andre.

#12 Aquarellia

Aquarellia

    Viking 1

  • -----
  • Posts: 755
  • Joined: 27 Oct 2012
  • Loc: Provence, France

Posted 21 March 2013 - 01:14 AM

penombra (I don't think is the correct name).

It´s penumbra, sorry André.
An interesting info about penumbra, superpenumbra and fibrils, through Halpha is given here :
http://iopscience.io...57687.text.html






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics