Astronomical Sketching
Transcript of Astronomical Sketching
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Astronomical Sketching
by Erika Rix
Erika Rix
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Contemplating Sketching?
Benefits of sketching at the eyepieceImproving visual observing skills, really studying and then remembering objectVisual record of observationConnection, Peacefulness, Relaxation
Interested?What’s holding you back?
What’s important to you?
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Targets
Sketching MediaDSOs, Comets,
AsteroidsThe MoonPlanetary
The Sun
PCW Memorial Observatory
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Sketch Media they’re not all the same
Various paper Pencils, chalks, charcoal, pens .Erasers
Stumps, tortillons, and smudgersSharpenersDigital pads and photo-editing softwareLightingTemplatesSupply stores
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Various Media
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Make use of Templates
Saves Time Accuracy
Tidiness
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Star Fields and Smudges
AnchorsStudy objectLay target foundation
Finish star fieldStudy again
Add finishing detailsTake notes
Erika Rix
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Prepare template
Open fieldsverses
templates
Template by Jeremy PerezPerez Media
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Anchor starsTriangulate
White copy paper Fine point black felt pen# 2 pencil
Remember to think inthe negative.
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Main pattern
.5 mm mechanical pencil# 2 pencil
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Work inwedges
.5 mm mechanical pencil
.3 mm mechanical pencil
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Work inwedges
.5 mm mechanical pencil
.3 mm mechanical pencil
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Work inwedges
.5 mm mechanical pencil
.3 mm mechanical pencil
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Scan andclean up
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Invert
Collinder-39920070929 0100-0146 UT
Orion ED80, LXD 75,40mm Pro Opticeyepiece, moonlightended session.
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Faint Fuzzies
You can easily add softcelestial bodies with a
loaded blended stump.
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4 Vesta trackingby Michael Rosolina
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NGC1404 & S 634/ADS 8444by Eric Graff
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The Moon
Choose your targetEasier to sketchaway fromterminator
Lay anchor Add shadowsLay backgroundfoundationWork in layersRetouchesTake notes
Erika Rix
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ComplexCrater near Terminator
Anchor White Rite in the Rain paper
8x11.5”Charcoal stick with holder
Copernicus20061002
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Add shadowsStick of charcoal
The terminator moves quickly, so add theshadows near the beginning stages ofyour observations.
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Blend shadowsSmall blending stump
Most shadows have a smooth appearance.
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Additional shadowsadded and blended
All with a blending stump.
Loaded blending stumps are very useful inadding softer features such as nebulaeand features on Mars and crater floors.
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Lay backgroundfoundation
Loaded finger
Loaded fingers add soft backgrounds inlayers. With the correct paper, this canalso be useful for rendering grainytextures. Blending stumps produce asmoother texture.
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Additional detail layersStick of charcoal
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Additional detail layersStick of charcoal
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Soften detail layersBlending stump and fingertips
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Add finishing touches
Copernicus20061002 0045-0200 UT
LX200, 12mm Burgess,
WO Binoviewers
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Copernicus, Reinhold andthe Montes Carpatus at lunarsunset.
Date: 8-28-05Start- 4:15 am End: 5:40am
PDTScope: 12" Meade SCTEyepiece: 40mm PlosslBarlow: 2X TelevueMagnification: 152XSeeing: 7-9 of 10Transparency: 9 of 10Medium: White Conte'Crayon on black texturedStrathmore paper.Size: 17.5" x 23.5"
Copernicusby Rich Handy
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Copernicus byThomas McCague
Black Strathmore 400 Artagainpaper, 9”x 12”, white and blackConte’pastel pencils and ablending stump. Brightnesswas slightly decreased andcontrast increased afterscanning using Microsoft OfficePicture Manager.
Telescope: 10 inch f/5.7Dobsonian and 6mm eyepiece241xDate: 2-16-2008 8:45 - 10:50UT (actual sketching time was60min.)Temperature: -10°C (14°F)clear, calmSeeing: Antoniadi IIICo longitude: 24°Lunation: 9 daysIllumination: 71.9 %Phase: 64°
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Lunar Impact Crater Parks Astrolight EQ6 •6" f/6 NewtonianReflector 7.5mm Parks Gold
Series Plössl + 2xBarlow • 240xField of View Not toScale21 September 2007 •
03:05-04:15 UT
Copernicusby Eric Graff
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Belgium
2007 04 26
8" dob-tube on aMeade 10" Starfindermount
Copernicusby Kris Smet
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Full phaseby Erika Rix
2007 01 030215-0420UTOrion ED80, LXD7520mm Kellner w/diagonalLunar Filter
Lunation 1039Lunar day 13.51Lumination 99.7
AZ +94deg3’ Alt +52deg28’T: 3/6, S: A IIITemp: 30f/-1CHumidity: 75%W: 4mph SSE
Black Strathmore ArtagainWhite Conte’
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Moon & Venus
18 June 2007by Sally Russell
White pastel, whitewatercolour pencil &white acrylic on blue'Daler-Rowney'Ingres paper
Sketch size 8" x 11"
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Naked eye eclipseby Carlos Hernandez
2008-02-21 Computer generated sketch based on observation
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Moon – Saturnby Sally Russell
England
Pastel, pastel pencil andwatercolour pencilon black Canfordpaper, sketch size6" x 11"
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Purbach, Regiomontanus, Blanchinus, Werner & Aliacensisby Sally Russell
England
12 Dec 2006
White Conte pencil pluswhite pastel onblack 'Canford'
paper, sketch size11" x 8"
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Schiller composite
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Eclipse Animation
Sketchsequence by
Rich Handy
Animation by
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Planets
Templates helpfulStudy firstSketch quickly
LayersTake notes
Sol Robbins
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Choose a template orcreate your ellipticalplanet outline
Rite in the Rain paper
Jupiter 20060528
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Bandsadded asanchors
Eraser shield#2 pencil
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Add slowermoving polarregions
#2 pencil
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Blend withfingertip
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Add equatorialbelt details
#2 pencil
Sketch quickly, theseareas move fast.You could start withpreceding limbbefore it disappears
if pressed for time.
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Europa’sshadowadded
#2 pencil
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Europa transitadded
White vinyl eraser Eraser shield
The satellitesthemselves can bedifficult to see. Ifspotted, you can
erase them into thesketch.
Jupiter 20060528
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HighlightsWhite vinyl eraser
Clean up any straymarkings.
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LX200, 8mm TVPlossl, 18mm
Meade W, bluefilter
Jupiter 20060528 0145-0230 UT
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Jupiter by Sol Robbins (left) and Eric Graff (right)
5:57 UT until 6:35 UT Date: 7-12-07 Seeing: Antoniadi II Weather: clear
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Jupiterby Rich Handy
Telescope: Meade 12 SCT, f/10, Binoviewer: W.O. Bino-P with 1.6X nosepiece,W.O.45 degree Erector Diagonal
Eyepieces 18 mm W.O. Plossl, Magnificaton: 271X
Medium: Colored Conte' pencils and colored chalks on 9" x 12" Strathmore Artagainblack paper, Sketch size: 9" x12" Jupiter's disk is about 5" in diameter
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30 September 2007
12:30-13:00 UT
Parks Astrolight EQ6
6" f/6 Newtonian Reflector 7.5mm Parks Gold SeriesPlössl + 2x Barlow • 240xField of View Not to Scale
San Diego, CA
Mars by Eric Graff
• filter
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Mars by Sol Robbins
• seeing conditions
• aperture
• magnification
• date
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Mars by Erika Rix
• aperture
• dates
• charcoal
• paper • lack of template
• lack of experience
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Mars sketch by Sol Robbins, labeled by Carlos Hernandez
Date (U.T.): January 27, 2008Time (U.T.): 02:30 (left image and 03:00 (right image)
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Mars by Carlos Hernandez
CM: 322.8 (left image) and 330.2 (right image)Ls: 023.0* (Early Northern Spring/Southern Autumn)
De: -2.5*, Diameter 12.6". phase 96%Instrument: 9-inch (23-cm) F/13.5 Maksutov-CassegrainMagnification: 248x and 359xFilters (Wratten): 30 (magenta) and 38A (blue)Seeing (1-10): 5, Antoniadi (I-V): IIITransparency (1-6): 5
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Mars map 07082by Kris Smet A4 printer paper
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Saturn by Sol Robbins
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Saturnby Carlos Hernandez
Florida
March 3, 2008 (03:45 U.T.)9-inch F/13.5 Maksutov-
Cassegrain (163x)
Digital rendering produced in
Photoshop CS3 based onobservation
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Saturnby Michael Rosolina
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The Sun
Study firstQuick Schematic
Close up targetsWork quicklyKeep in perspective!
Concentrate on shapes and sizesTake notes
Erika Rix
Close up Proms
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White Conte’ crayonBlack Strathmore Artagain paper
The Sun20080123 Create limb arc
Close up Proms
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FingertipThe Sun20080123
Blend roughly
Close up Proms
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White Conte’ pencilThe Sun20080123
Brightest areasfirst
Close up Proms
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White Prang pencilThe Sun20080123
Add fainterdetails
Close up Proms
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ThumbThe Sun20080123
Smudge gently
Close up Promsh
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White Conte’ pencilThe Sun20080123
Touch up
Close up PromsTh S
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Charcoal pencilThe Sun20080123
Add surfacedetail
Internally double-stacked Maxscope60 0 5A LXD75 21 7Th S
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60mm,
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Sun by Erika Rix
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Tracking Active Region by Michael Rosolina
AR 940 03 Feb 2007 1344 1415 UT AR 940 03 Feb 2007 1547 UT
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AR 940 03 Feb 2007, 1344-1415 UT
by Sally Russell AR 940 03 Feb 2007, 1547 UT
by Erika Rix
AR960 03 June 2007 10 50-11 28 UT
Graphite pencil on white cartridge paper.Sketch size 4" x 3"
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AR960 03 June 2007, 10.50 11.28 UTby Sally Russell
CaK full disc 7 July 2007
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CaK full disc 7 July 2007by Sally Russell
Watercolor pencil & chalk pastel
on black paper
Sketch size 4" x 4"
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13 Day
Animationof Sun by Erika Rix
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ResourcesOther visual observers/sketchers“Astronomical Sketching, a Step by StepIntroduction”Cloudy Nights’ sketching and observationforums www.cloudynights.com
Astronomical League
Get feedback so you can improve!
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Summary
Basics – Explore further Practice makes perfect
And most importantly ..
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Have fun and strive for accuracy!