Category: white light

Sun by Juliette

Sun - November 16, 2012
Sun - November 16, 2012

This is the first sketch of my daughter Juliette, 10 years old.
Félicitations Juju!!
Object Name : The Sun
Object Type : Star (!)
Location : Gatineau, Qc, Canada
Date : November 16 2012
Media : graphite pencil on white paper

Baader AstroSolar filter on a Sky-Watcher 80 ED with a 8mm Orion Stratus eyepiece.

Étienne Morin
139 Church,
Gatineau, Qc
Canada

Mercury Transit – 1970

Mercury Transit
Mercury Transit

Hey Artists!

As the time of the “last” transit of Venus is perhaps ended, I would like to show all an old
but spectacular observation of a transit of Mercury I made in 1970.
My sketch shows not only a solartransit, but the planet also passed over a close bipolar
sunspots!!
It was interesting to observ the absolute black Mercury with the umbra in the spots.
The umbra was easy seen brighter. My info on sketch is in norwegian!
This was a lucky observation, indeed!!
Location : Trondheim, Norway.
I used pen and pencil on this original sketch.

Thanks for nice comments on my sketches!!
Have a clear sky and nice time to all!

Per-Jonny Bremseth.

Transit of Venus from Alavi High school

Transit of Venus
Transit of Venus

Hello
I’m AhmadReza Hoseini from Alavi Association of Astronomy.
I and my َAstronomy students in Alavi high school in Tehran had a memorable Observation of Venus transit in 6 June 2012.
This sketch from Ali BabaNalbandi is the best in students’ sketches.
in addition, I attached some pictures of our observation for you.
Excuse us for the delay in sending this sketch.
We have got familiar with your site during this month and we hope to have better communications and interactions with you in future.

Sketch Properties:
Observer: Ali BabaNalbandi
Object Name: Venus Transit 2012
Object Type: Sun & Venus
Location: Alavi (High School) Association of Astronomy, Tehran, Iran
Date: 6 June 2012
Media: graphite pencil, charcoal, gouache, watercolor
Observing Tool: SkyWatcher 8″ Dob
Weather: Sunny and clear
seeing: very good

Yhank you
A.R. Hoseini
Astronomy Teacher at Alavi Association of Astronomy
(Alavi High school)

Sunspots in the heat

Sunspots - July 7, 2012
Sunspots - July 7, 2012

Dear Asod,

Please find attached my sketch about the Sun and the sunspots. This sketch has been made in Polaris observatory, Budapest, with the big 200/2470 refractor. This telescope has an awesome optic it shows the sunspots unbelievably detailed and beautiful. I used a 25 mm eyepiece.

That day it was 38 degrees in Celsius in Hungary, but on the other hand the seeing was great.

Date: 7th July 2012
Time: UT 12:30
Place: Budapest, Hungary
Equipment used: 200/2470, 89x
I used graphite pencils on white paper.

Regards,
Judit

dr. Hannák Judit
Web: http://egmesek.blogspot.com

Sunspots: Sketching and Photography

Sun - July 3, 2012
Sun - July 3, 2012

Object Name: Sun-Sunspots 1512-1513- 1515-1517
Location: Tehran-Iran
Date: July 3, 2012
Time: 14:00 Local Time (+3:30 GMT)
Media: Soft Pastels on Black Fabriano paper

Optic: 80 ED APO Refractor Telescope
Focal Length: 600 mm
Eyepiece: 9mm UWA- 1.25′′- 58º

Photo Details:
Camera: Canon EOS 60D
Shutter Speed: 1/6400 sec
ISO:200

Clear Skies
Mona Sorayaei

Plages come, Plages Go…

White Light and H-Alpha Sun - June 30, 2012
White Light and H-Alpha Sun – June 30, 2012

An exciting day under the Sun. Observing with both a Coronado PST h-alpha & white light 8” Dob fitted with a 3.5” solar filter. Sketches were made at the eyepiece(s).

Seeing was good to excellent. After sketching details of the 4 sunspot groups I could readily see with the PST, I noticed one of the plages (bright spots) on the 1513 sunspot brightening intensely. As it brightened the bottom portion (to the South) of the plage developed a greenish/blue hued widening irregularity. There was also a linear band that extended from the widening directly to the center of sunspot 1513. Above the sunspot there appeared a filament which I tried to capture as well in my sketch. Within 5 minutes the dark patch was gone. From some research and asking more experienced friends, I believe I witnessed a solar flare, probably a minor one but still very exciting. I have been observing with the PST for over a month now, but this was a first for me. The plages around all the major sunspots continued to brighten & fade during the observation period, but none to the intensity of 1513. The PST was loaned to me by a friend after my excitement over white light observing. It’s a wonderful instrument showing many features of the Sun not evident in white light solar filters.

Solar prominences on the limb were also detailed today with the larger one appearing as somewhat of a vortex shape, while another more north prominence appeared as a broken loop. I had observed yesterday & did not see this broken loop then.

I moved to white light observing & could see much greater detail in all the sunspots, including many that did not show up well with the PST.

White light filters are primarily for observing details of the photosphere (like sunspots, facule & granulation), where h-alpha narrow bandwidth shows detail in the chromosphere. The chromosphere or “sphere of color” is the second of the three main layers in the Suns atmosphere and is roughly 2,000 kilometers deep. It sits just above the photosphere, and below the corona.

I am in love with the ever changing face of the sun. I am sometimes tired at night by the time the sky clears but the morning is always mine!

Coronado PST 40mm
9mm Plossl 44X

8” Dob w/ masked 3.5” Astro Baader Solar filter (homemade)
25mm Plossl 48X

4,000 ft elevation
Maui, Hawaii

Aloha!

(Cyn) Thia Krach

Last in My Lifetime Pairing

Venus Transit
Venus Transit

Object Name – Sun and Venus
Object Type – Solar System
Location – Green Bay, WI
Date – 6/5/2012
Media – graphite pencil, white paper.

I would like to submit this sketch of the transit of Venus. The sketch was made with my 10” Discovery Dobsonion telescope at about 80 x using a Mylar solar filter. I first sketched the Sun and sunspots before the transit began and then added Venus at various intervals as the transit progressed. The numbers along the side are the times the silhouette of Venus was added, in UTC. I was only able to see about half of the transit from Green Bay. The astronomy club I belong to, the Neville Public Museum Astronomical Society, hosted a public observing event. We had a very large turnout and the weather was great. It was a very enjoyable day and I was happy to capture it in this sketch.

Thank you,

Brian Chopp

Third Contact

Venus Transit - June 6, 2012
Venus Transit - June 6, 2012

Object: Transit of Venus
Location: Pesaro, Italy
Date: 06/06/2012
Pencil on yellow paper, colour and contrast correction with Gimp

The sky was very clean, we coud even see Croatia’s mountains on the other side of coast. Venus was already there at about three quarters of her journey across the solar disc. I used a 32 mm plossl eyepiece to project the Sun on a yellow sheet of paper and marked the sunspots and Venus with a pencil. This drawing pictures the third contact.

Aldo