#61  
Old 15-03-2011, 11:13 PM
michaellxv's Avatar
michaellxv (Michael)
Registered User

michaellxv is offline
 
Join Date: Oct 2009
Location: Adelaide, Australia
Posts: 1,577
Quote:
Originally Posted by Paddy View Post
Going great guns I reckon Michael. I like the way you've caught the light on the wall so the crater and on the peaks on the floor. I find this a great challenge. Enjoyed your accompanying report too!
Thanks Patrick. Creating hilights is certainly easier with the pastels. Creating subtle shades is more difficult.

Quote:
Originally Posted by mental4astro View Post
Oh, yeah! Now we're cooking Michael.

Very nice job. Working with white on black is a very different way of thinking. And with pastels, no pussy-footing here.

I really like the little 'flecks' of white along the dark right rim of protuding peaks, and the tight little shadows of the two central peaks. It's the little details that make the sketch work really well.

For sharp, fine details using pastel or charcoal (both white and black types) keep a piece of fine sandpaper in your kit. You then rub the edge you want to develop on the sandpaper, .

Those fine rays would have been a tease.
Thanks Alex. Pastels are a very different medium than I am used to. It's going to take a bit of work to develop the techniques needed.
Reply With Quote
  #62  
Old 08-04-2011, 12:06 PM
yusufcam's Avatar
yusufcam (Colin)
Registered User

yusufcam is offline
 
Join Date: Mar 2010
Location: Sydney
Posts: 119
sketching with an unguided scope?

is it feasible to try lunar sketching with an unguided scope?

i remember some time ago reading an article (or seeing a documentary, cant recall which) about one of the early popular astronomy sketchers (this was back when they they thought there were cities on mars) who mainly did planetary/moon work.

And his sketches were a type of stylised artform more than accurate representations, sort of art deco versions of what they could see back then.

very interesting visually.

i have the phillips moon observing book and the sketches in it remind me of the ones in that program, in that they look more like art (maybe its a feature of lunar sketching?). In the section on sketching that it has it recommends that one start sketching moon photography first and build up some skills, then move to the eyepiece.

So thinking about taking a dip at a doodle, looks like it could be fun (and a bit cheaper than a$$$trophotog&%#!hy? for us newbies)

regards
Colin

Last edited by yusufcam; 08-04-2011 at 12:26 PM.
Reply With Quote
  #63  
Old 08-04-2011, 12:37 PM
mental4astro's Avatar
mental4astro (Alexander)
kids+wife+scopes=happyman

mental4astro is offline
 
Join Date: Jun 2008
Location: sydney, australia
Posts: 4,552
Hi Colin,

Unguided, done over 45minutes with an 8" f/4 dob at 29X, with white charcoal pencil, white chinagraph and Lumograph B8 pencil on black paper.

Very much doable, .

If you use higher magnification, wide-field eyepieces help as the drift time through the FOV is longer.
Attached Thumbnails
Click for full-size image (near full Moon 002.jpg)
82.7 KB39 views
Reply With Quote
  #64  
Old 08-04-2011, 01:27 PM
yusufcam's Avatar
yusufcam (Colin)
Registered User

yusufcam is offline
 
Join Date: Mar 2010
Location: Sydney
Posts: 119
Quote:
Originally Posted by mental4astro View Post
Hi Colin,

Unguided, done over 45minutes

Very much doable, .

thanks kindly for that information.

will still start from some photos, to get a feel for it and then move to the scope if all proceeds according to plan.

hee, hee, (i'm excited)
Reply With Quote
  #65  
Old 16-04-2011, 12:34 AM
michaellxv's Avatar
michaellxv (Michael)
Registered User

michaellxv is offline
 
Join Date: Oct 2009
Location: Adelaide, Australia
Posts: 1,577
Vallis Schroter

Vallis Schroter caught my eye tonight. Looks like a long snake along the base of a slightly hilly area. It was brightly lit as the sunrise reaches inside. Nearby craters are Herodotus and Aristarchus.
Attached Thumbnails
Click for full-size image (Vallis Schroter 20110415.jpg)
177.7 KB48 views
Reply With Quote
  #66  
Old 16-04-2011, 06:44 AM
mental4astro's Avatar
mental4astro (Alexander)
kids+wife+scopes=happyman

mental4astro is offline
 
Join Date: Jun 2008
Location: sydney, australia
Posts: 4,552
This forum has been a little lean the last few weeks. I've been hearing its hunger pain grumbles, .

Well, Michael, finally some FOOD!

I particularly like your use of colour. The brown lends a very nice element of life. Something I should explore a little more.

The rendering is brilliant. You've managed to make those craters leap out of the page with the well detailed highlights and the careful, sharp shading. And the central peaks - cool, . And the creaping Valley, not an easy feat to attempt at such magnification (300X ?).

Very, very nice mate.

Edit: I keep coming back to the image! There is something really captivating about your sketch. Colour? Shading of highlights? The shadows? All of it?!

Last edited by mental4astro; 16-04-2011 at 06:46 AM. Reason: Cool sketch!
Reply With Quote
  #67  
Old 16-04-2011, 07:45 AM
yusufcam's Avatar
yusufcam (Colin)
Registered User

yusufcam is offline
 
Join Date: Mar 2010
Location: Sydney
Posts: 119
Quote:
Originally Posted by mental4astro View Post
This forum has been a little lean the last few weeks. I've been hearing its hunger pain grumbles, .
did one a couple of nights ago, the seeing was excellent and i discovered a great eyepiece/barlow combination that night.

unfortunately it ended up magnifying the difference between the drawing and what you could see at the eyepiece too much to feel happy about the outcome

trick is, i suspect, to figure out how to gloss over the nitty gritty details in a way that looks good.

in the lunar observational drawings i've seen thus far they appear to do it with a shading technique.

(back to the drawing board)..

Last edited by yusufcam; 16-04-2011 at 08:26 AM.
Reply With Quote
  #68  
Old 16-04-2011, 08:36 AM
mental4astro's Avatar
mental4astro (Alexander)
kids+wife+scopes=happyman

mental4astro is offline
 
Join Date: Jun 2008
Location: sydney, australia
Posts: 4,552
Yusuf, mate, post the sketch! Where you may see a flaw with it, you may be surprised by the comments. You may then do some 'corrections' as needed and then repost the sketch. We ALL learn that way!

There is no right or wrong here! We are all learning!
Reply With Quote
  #69  
Old 16-04-2011, 06:10 PM
michaellxv's Avatar
michaellxv (Michael)
Registered User

michaellxv is offline
 
Join Date: Oct 2009
Location: Adelaide, Australia
Posts: 1,577
Quote:
Originally Posted by mental4astro View Post
Yusuf, mate, post the sketch! Where you may see a flaw with it, you may be surprised by the comments. You may then do some 'corrections' as needed and then repost the sketch. We ALL learn that way!

There is no right or wrong here! We are all learning!
I'll second that. There is so much I don't like about my sketch but it is what it is. We are all learning and experimenting and hopefully improving.

The real reason I enjoy sketching is because it makes me look longer and more closer and the subject. My recent sketch was about 45min going between EP and sketch. If I was just viewing I would probably only look for 5min tops.

It's easy to get caught up trying to put all the detail you can see into a sketch. If I am doing a small area like a single crater I will go for detail, but when sketching a wider view I go for a more general lay of the land look.
Reply With Quote
  #70  
Old 16-04-2011, 11:54 PM
yusufcam's Avatar
yusufcam (Colin)
Registered User

yusufcam is offline
 
Join Date: Mar 2010
Location: Sydney
Posts: 119
getting there...

raining tonight...

you guys got me going anyway

have a great book of planetary photos so i did one out of that in the interim.

the following are three craters in the top right quadrant of
south eastern side of the reverse side of the moon (from nasa photos)


its interesting if you haven't seen the other side, its heavily cratered as the earths gravity caused all the lava flows (oceans) to come out on the side facing us.


getting there....
Attached Thumbnails
Click for full-size image (Luna 005.JPG)
94.2 KB49 views
Reply With Quote
  #71  
Old 17-04-2011, 12:43 AM
michaellxv's Avatar
michaellxv (Michael)
Registered User

michaellxv is offline
 
Join Date: Oct 2009
Location: Adelaide, Australia
Posts: 1,577
Excellent sketch, you've got nice shading there and it definately looks like it belongs on the moon.
Reply With Quote
  #72  
Old 17-04-2011, 09:19 PM
mental4astro's Avatar
mental4astro (Alexander)
kids+wife+scopes=happyman

mental4astro is offline
 
Join Date: Jun 2008
Location: sydney, australia
Posts: 4,552
Good stuff Yusuf.

One thing about the Moon, there is no pussy footing with the contrast. Black and White, with just a little grey. Go in, boots and all, like this!
Reply With Quote
  #73  
Old 18-04-2011, 02:43 PM
Paddy's Avatar
Paddy (Patrick)
Canis Minor

Paddy is offline
 
Join Date: Jun 2007
Location: Strangways, Vic
Posts: 2,206
Nice Sketch Colin. And a great idea to use some photos when viewing is unavailable.
Reply With Quote
  #74  
Old 24-04-2011, 07:56 PM
mental4astro's Avatar
mental4astro (Alexander)
kids+wife+scopes=happyman

mental4astro is offline
 
Join Date: Jun 2008
Location: sydney, australia
Posts: 4,552
Anyone keen to have a go tonight, it being a public holiday on Tuesday?

Any suggested target on the Moon, or a go at the whole thing?

---

Edit: how about the crater Eratosthenes? It's bound by Mare Imbrium & Sinus Aestuum, and has an ismuth of a mountain range connecting it to the mountains of Montes Apenninus.

Seems to make for a striking set of contarst between light and dark.

I'll set my alarm clock for 3am.

Last edited by mental4astro; 24-04-2011 at 08:44 PM. Reason: feature suggestion
Reply With Quote
  #75  
Old 25-04-2011, 05:09 AM
michaellxv's Avatar
michaellxv (Michael)
Registered User

michaellxv is offline
 
Join Date: Oct 2009
Location: Adelaide, Australia
Posts: 1,577
Eratosthenes

Here you go Alex. Lucky I had a snooze for about an hour while I was out otherwise I couldn't have stayed up to do this.
It's a nice clear night so once I got setup I had a quick look around before turning to the moon, this also gave it a chance to get a bit higher.

Eratosthenes
A nice round crater, the innner wall steps down all around. Appears to have 3 central peaks in this illumination. Outer wall slopes evenly down to surrounding area except where the Apenninus range wraps around the crater.

I went back to pencil on white paper for this one, a bit of touch up once I got inside to the light.
I might try to redo it in pastel on black for comparison.
Attached Thumbnails
Click for full-size image (2011-04-24-Eratosthenes-w.jpg)
175.6 KB45 views
Reply With Quote
  #76  
Old 26-04-2011, 08:28 AM
mental4astro's Avatar
mental4astro (Alexander)
kids+wife+scopes=happyman

mental4astro is offline
 
Join Date: Jun 2008
Location: sydney, australia
Posts: 4,552
Nice one Michael. Images of this crater certainly make it look truely spectacular. I didn't know it had three central peaks. Must have been a stiking view.

I'm glad someone is having scope time. The sky was clear when I made the suggestion, but "Mare Pluvia" spontaneously appeared here moments after I posted the suggestion, . Looks like it might even kill this coming New Moon too, .
Reply With Quote
  #77  
Old 27-04-2011, 08:55 AM
Paddy's Avatar
Paddy (Patrick)
Canis Minor

Paddy is offline
 
Join Date: Jun 2007
Location: Strangways, Vic
Posts: 2,206
Very nice sketch Michael.
Reply With Quote
  #78  
Old 03-05-2011, 12:32 PM
yusufcam's Avatar
yusufcam (Colin)
Registered User

yusufcam is offline
 
Join Date: Mar 2010
Location: Sydney
Posts: 119
nice!!

for me the trick is (like you've managed), to not get bogged down in the details, for lunar sketching to work.

otherwise...

if this clear sky drought keeps up much longer, gonna have to start looking at how radio telescopes work
Reply With Quote
  #79  
Old 12-05-2011, 12:04 AM
mental4astro's Avatar
mental4astro (Alexander)
kids+wife+scopes=happyman

mental4astro is offline
 
Join Date: Jun 2008
Location: sydney, australia
Posts: 4,552
First Quarter Moon, and frozen stiff, :)

Hi all,

The way things are on the East Coast, any time there are no clouds is a good time with a scope. Only thing is the temp. outside read 8 degrees, and with the blasted westerly wind, it felt more like 4.

This is my first sketch using my Orange Tube C8. She is such an easy scope to use. No bells or whistles, just a basic clock drive. It's all I need.

I had a bit of a race on to do this sketch. Tops I had an hour before the Moon went behind the neighbour's palm tree. Just managed it as the fronds began to be visible, swaying in the wind through the scope. It is a little rushed, but it seems to have a bit of movement, much like the quality of the image through the scope tonight, .

Object: 1'st quarter Moon
Scope: Orange tube C8
Gear: GSO Superview 30mm, 67X
Date: 11th May, 2011
Location: Sydney
Conditions: Windy & FREEZING
Media: White and black charcoal pencils, white chinagraph, graphite pencil, on A4 black paper

Mental.
Attached Thumbnails
Click for full-size image (1'st quarter Moon.jpg)
103.9 KB46 views
Reply With Quote
  #80  
Old 12-05-2011, 11:18 AM
Paddy's Avatar
Paddy (Patrick)
Canis Minor

Paddy is offline
 
Join Date: Jun 2007
Location: Strangways, Vic
Posts: 2,206
Beautiful sketch Alex. Love the texture!
Reply With Quote
Reply

Bookmarks

Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +10. The time is now 05:47 AM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Advertisement
Meade Australia
Advertisement
Celestron Australia
Advertisement
NexDome Observatories
Advertisement
Lunatico Astronomical
Advertisement
Bintel
Advertisement
OzScopes Authorised Dealer
Advertisement
SkyWatcher Australia
Advertisement
Astronomy and Electronics Centre
Advertisement