Object Name Sun
Object Type Sunspot 1575 and crown
Location Néoules Provence France
Date 22 sept. 2012 – 13h TU
Media (graphite pencil for the spot, red pastel for the crown, two different white papers, Paint.net)
I made two separate sketches, one in H alpha via a classic PST for the crown, the second one through a 1000/102 refractor with solar continuum filter for the spot.
I used several eyepeaces.
The compilation was done with the freeware software : Paint.Net
Conditions were perfect, the sun was hot here… !
Carbon Star U Cyg
I have been watching the well-known carbon star U cyg all this summer and fall as it has risen in magnitude. At the time of my observation it was glowing like a red hot ember at magnitude 9.0. This particular star ranges in visual magnitude from 12.1 to 5.9 over a period of 463 days. The red color deepens as it fades and becomes more yellow-orange as it brightens.
The star is located at RA 20 hrs. 20 min and Dec.; + 47° 34’. The red orange color is quite striking visually.
Sketching:
For this sketch I used white sketching paper, a mechanical drawing pencil, assorted color pencils, several plastic erasers. The sketch was inverted and then scanned.
Telescope used: 10” f/5.7 Dobsonian with a 24 mm eyepiece for a magnification of 60x.
Date: 11-10-2013, 11:25-11:55 UT
Frank McCabe : )
Object Name M7
Object Type Open Cluster
Location Brasília-DF, Brazil
Date: October 11th, 2013 23:20 ZL
Media 2HB graphite pencil on white paper, scanned and processed with GIMP
Instrument: 120mm f/4 refractor + 32mm (19x)
M76 is a planetary nebula really awesome observed from a dark skies and with a good telescope aperture. Two distinct sections, one brilliant and compact, the other more extensive and diffuse. A very attractive nebula to be seen on a dark night and away from any light pollution.
For more details of my observation you can visit my blog:
Object name: M 45, Pleiades Cluster
Object type: Open cluster
Location: Bangalore, India
Date: November 2nd 2013
Media: Black ink, graphite pencil, MS Paint.
Hi! Asod, few days ago I saw the nebula California, was very curious to know if I could capture something visual light as they claim is faint. With my little scope locate ξ (xi) menkib, but looking even more side vision was getting nowhere, I knew I needed to filter, but had to try. By putting the filter magically appears, still not something brilliant, but do not strain your eyes because it is obvious that this is no, there is a dark area that crosses na nebula, but with side vision greatly improves contrast. The truth that I could not resist doing a sketch but as always with a very dim light, if you can not have problems adjusting to the darkness.
You only need a dark sky, wide field and nebular filter.
Regards.
Object name: NGC 1499 California
Object type: Emission nebula
Location: Bonilla Cuenca ( spain )
Date: 1 November 2013
Hour: 00:00 < 00:40
Media: graphite pencil, processed and inverted gimp 2.8
Optical equipment: Refractor Tele Vue 101 F / 5,4 Genesis SDF Eye piece ES 30mm
Magnification 18x True field 4,5°
Sky conditions: Stable sky, clouds on the horizon. Nelm 6,2 Temperature -0,6°C Relative humidity 67%
Borthle scale 3/9
Object- Sun.
Location- Bangalore, India.
Date- 1-Nov-2013.
Media- Graphite Pencil and white paper and processed in photoshop…
Instrument- Coronado PST and 6mm eyepiece on Ioptron smart EQ Portable GEM….
Object Name (Sun)
Location (Rocbaron – Var in Provence)
Date (April 22 2012 16h12 local time)
Media (white paper, emerald green watercolour, inverted scanning.)
Hello artists
Just a few hours after the great sketch of Stratos Tsanaktsidis, I had the opportunity to draw this one. I use a common H alpha PST Coronado.
My technique is quite original, after a light circle portion made by a graphite pencil on white paper I use directly a pure watercolour “green emerald” to sketch the solar surface on a water base and then the protuberances on the dry part of the sky, taking into account that light green will become dark red and vice-versa. Then I just have to invert the colours after scanning. The white sky is becoming black while the green part is becoming “H alpha red”.
Right, I add the approximate dimension of the earth and the moon orbit.
Object Name: Evolution of solar [prominence]
Object Type : Solar [prominences]
Location: Castres France
Date: 22 september 2013
Media (graphite pencil, white paper, digital treatment (color, inversion)
– Good seeing and transparency
– PST and Ethos 8mm
