Category: sunspots

Sun Over Sweet Lake City

Object Name: sun
Object Type: star 😉
Location: Sweet Lake City, The Netherlands
Date: 25 april 2011
Media: graphite pencil, enhanced with Photoshop

Attached you’ll find two images:
1) A sketch of the sun I made this morning using a Lunt LS75Ha etalon filter and a B600 blocking filter mounted on a Takahashi FSQ-106ED. The sketch was made between 8h30 and 9h00 UT viewing trough a Vixen 13 mm LVW (magnification 41x).
2) The same sketch, though then colourized and enhanced with Photoshop CS4.

Thanks for watching!

Maurice Toet
www.dutchtdeepsky.com

Sunspots 1191 and 1193

Object Name Sunspot 1191 and Sunspot 1193
Object Type Sun/Sunspots
Location Bilthoven, Netherlands
Date April 19, 2011
Media Normal pencil on white paper

Tuesday, immediately out of school, I took my 70mm f/6 refractor telescope with a homemade Solar filter.
With my 9mm T1 Nagler (44x) and Baader Contrast Booster the Sun showed its spots beautifully.
Especially in group 1193 were many details visible.
And when you are sketching, even more details become visible.

This is a sketch of group 1193 and 1191 (which has one spot only, at the bottom of the sketch). Group 1191 was pretty faint in my 70mm telescope, but at moments of good seeing it looked like it had more than one umbra.

Clear skies!

Tom Trapman

Sunspots and the Significance of Foreshortening

J. Aceto, a high school student with aspirations to attend the Maine College of Art, drew these two images of solar active region 1108 based upon photographic images taken by my astronomy students.

The images show the active region as it appeared near the sun’s E limb. The first drawing in the series shows a foreshorted image of the active region. The foreshortening of sunspots near the sun’s limb was first noted by Galileo. He used his observations and understanding of this phenomenon to prove that sunspots were on the sun (not transiting objects, which would remain the same size thoroughout a transit). The second drawing shows how far the the active region has moved in a 24 hour period due to the rotation of the sun.

solar active region 1108
observed from S. Portland, ME
observing/imaging sessions: September 16 and 17, 2010
drawing: March 23, 2011
pencil

submitted by J. Stetson

Spots on the Sun

Hello artists, after bad weather condition, snow and grey cold sky, finally the hot of Sun! What care for my bones ! I take my bino 16×80 with astrosolar filters to check the Sun and i made one shout: WOW!!!!!! The big incredible spots on our star!!! Great show!
I take my refractor Kenko 80/1000 and made this sketch. The position is inverted because i have the prism.
I hope you like it.
Clear sky and good new skrtches at all great artists of ASOD
Ciaoooo!!!!!!!! Giorgio.

Site :Pergola,Marche Region,Center Italy
Date: 6 of March 2011
Time:11,47 a.m. local time
Instrument:Refractor Kenko 80 /1000
Eyepiece:21mm for total view,12,4mm erfle for pariculars of spots
Seeing:Perfect at first time,turbulence and wind at the end
Temperature:Cold light wind

Sunspots and Proms, Filaments and Plage

2011 03 08, 1703 UT – 1945 UT
Solar h-alpha, NOAAs 11164, 11165, 11166, 11169, prominence sequence 240 pa (11165)

PCW Memorial Observatory, Zanesville, Ohio USA – Erika Rix
www.pcwobservatory.com
Temp: 16.8°C, Humidity 34%, SE winds 8mph
Seeing: Wilson 3.5 w/moments of 1, Transparency: 1-2/6
Alt: 44.5°- 36.4°, Az: 168.1°- 221.1°

DS 60mm Maxscope, LXD75, 21-7mm Zhumell

H-alpha sketch created scopeside with black Strathmore Artagain paper, white Conte’ crayon and pencil, Derwent charcoal pencil, black oil pencil.

It was a nice surprise to see the Sun out and the thin clouds scattered enough for a solar session, especially with 4 active regions present. I didn’t pull out a white light filter. It certainly would have made a great comparison to the h-alpha views with all the sunspots scattered about. The fibrils in NOAA 11166 were outstanding and plentiful, reaching out through plage in wide arcs. 11164 looked etched near the limb with stark contrast between the filaments and plage.

It was 11165 that kept most of my attention today with its area of prominence changing so rapidly that I’m fairly certain portions of it erupted and then collapsed on itself. Two times sections had broken free and floated off. During those times, a sketch was completed every 5-10 minutes.

I would have liked to have stayed out for at least a few more hours, but the transparency became too horrendous to pull detail out of the prominences and full overcast skies was soon to follow.

The Angry Sun

Observer: Saeid Aghaei
Date: Mar 06, 2011
Time: 11:20 (Tehran: +03:30 UTC)
Location: Tehran ( Lat.: 35° 44.962’N, Long.: 51° 26.653’E, Elev.: 1350m)
Optic:
Telescope: Lunt Solar Telescope
Aperture: 60mm
Focal Length: 500mm
Eyepiece: 6mm, 15mm , 25mm
Object: The Sun, Sunspots 1164 & 1166
Object Type: Sun spots, Solar prominences
Media: HB graphite pencil, and white paper

Description: Coloring in Photoshop, without any retouching.

Sunspots On the Edge

Hallo

Here´s some further information

Object Name: sunspot complex 1161-1162
Object Type: sunspot
Location: Tale, Austria
Date: 23.2.2011
Media: pencil on white paper, digital work done with “Gimp 2”
Equipment: Skywatcher Equinox 100/900ED with Baader Herschel Wedge, Baader Maxbright Binoviewer and 18mm Baader Genuine Ortho eyepieces

Seeing was moderate, therefore 130x was the highest possible magnification. Some nice lightbridges near the umbra of the bigger sunspot caught my attention.

Kind regards
Michael