Sun in H-Alpha – September 7, 2012

H-Alpha Sun - September 7, 2012
H-Alpha Sun - September 7, 2012

Dear ASOD,

I send you my latest sketch of the Sun in H-alpa. I cought a very nice prominence which has already „departed” from the disk, and looked very interesting. It was not changing too much within the 20-30 minutes I observed it.

Date & Time: 7th September 2012, UT 10:20
Equipment used: Lunt LS35T H-alpha 35/400, 12mm & 7 mm eyepieces
Media: Graphite pencil used on white paper
Seeing: 8/10, transparency 5/5

Clear skies,
Judit

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

Two Days in the Life of Our Sun

H-Alpha Sun
H-Alpha Sun

Object Name : Sun
Object Type : H alpha observation
Location : Montreal, Canada
Date : September 2 and 3
Media : Acrylic on black paper
Scope: Lunt LS60THa/B600|CPT on motorized EQ3 mount.

Our star put up a great show during 2 days. I was able to observe the «good hair day» of the sun for a total of nearly 5 hours. Many proeminences, which remained relatively stable throughout 48 hours, could be seen. The observation of September 2nd was interesting. I started the observation around 13:00 EDT keeping the magnification low (25-50X) to sketch the whole disk and the distribution of the proeminences. I kept an eye on AR 1560, which was facing earth. Around 14:00 EDT this region began to light up. Two bright flares (showed at the upper center lane of the first disk) were clearly visible and increased in brightness for the next 30 minutes. Then they faded away and by 15:00 EDT the phenomenon ended. I was glad to be able to capture this activity on my sketch.

The sketches were done on black Pastel Paper with HB pencil to record details of the proeminences. The disk was traced with a compass. Acrylic paint (red and yellow) was then used to reproduce the color seen in H alpha. The paint was layered with large and small brushes directly on the lines of the HB pencil. The two separate sketches were photographed and then assembled with Photoshop CS3. No color or contrast adjustment were done except for the background.

Jean Barbeau

H-Alpha Sun – August 2, 2012

H-Alpha Sun - August 2, 2012
H-Alpha Sun - August 2, 2012

Object Name: H-alpha Sun
Object Typ: Solar System
Location: Stegersbach Austria Europe
Date: Aug. 02. 2012
Media: black paper, red and white drawing chalk,
Telescope: Coronado P.S.T 40, 12,5 mm Okular

Thank you
Markus Vertesich

Solar Disk with Prominence

H-Alpha Sun - June 29, 2012
H-Alpha Sun - June 29, 2012

Object Name: Sun
Object Type : Full disk
Location: Montreal, Canada
Date: June 29th 2012
Media: Red pastel on black paper, Photoshop CS3

This is my first sketch of the sun in H-alpha using my new solar scope Lunt LS60THa. The Lunt Zoom eyepiece, 7.2 – 21.5 mm, was used. Seeing was 3/5.

Jean Barbeau

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

Partial Annular Eclipse

Partial Annular Eclipse Sequence - May 20, 2012

2012 05 20 Partial Annular Eclipse
PCW Memorial Observatory, Texas, Erika Rix
www.pcwobservatory.com
www.solarastronomy.org

H-Alpha Sun - May 20, 2012
H-Alpha Sun - May 20, 2012
H-Alpha Eclipse Diagram - May 20, 2012
H-Alpha Eclipse Diagram - May 20, 2012

Knowing that we fell within a good band to view a partial portion of the annular eclipse, Paul and I scoped out the local county roads earlier in the day for optimal horizons. The partial eclipse for our location was due to start at 1932 ST (0032 UT) which would only give about 50 minutes of eclipse viewing before sunset. The skies cleared up and we were fortunate to have perfect viewing conditions that evening.

I started off drawing the full solar disk in h-alpha. Four active regions lined up east to west with two more to the south (depicted to the top of the first sketch in the animation). I then made a quick second sketch to use for recording the times and placements of the Moon as it passed between Earth and the Sun.

First contact was at 0032 UT. The first marking was at 0035 UT. I set my iPhone’s timer to go off every five minutes until sunset, marking the Moon’s progress each increment with my oil pencil along with the times. In between, Paul and I would alternate using a pair of solar glasses from solarastronomy.org and the views from my double-stacked Coronado Maxscope 60mm h-alpha telescope.

The first image of the animation shows the original sketch in its entirety. Later, I used the second solar disk sketch as a reference to recreate the eclipse on the original sketch with a cut out circular piece of black Strathmore paper. This animation is the result.
http://i201.photobucket.com/albums/aa201/ErikaGRix/20120520-animation.gif

As the solar disk became too dim to view (represented in the last couple frames of the animation), I was forced to leave the eyepiece and enjoy the last several minutes with the solar glasses and my camera.

Two original sketches created at the eyepiece with black Strathmore Artagain paper, white Conte’ crayon and pencil, white Prang color pencil, Derwent charcoal pencil, black oil pencil.