Category: Inverted

Carbon Star U Cyg

U Cygni
U Cygni

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 : )

The Little Dumbbell in Perseus

Messier 76
Messier 76

M76 -Little Dumbbell

Object Type: Planetary Nebula

Location: Tarragona – Spain

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:

http://laorilladelcosmos.blogspot.com.es/2013/11/m76-la-pequena-dumbell-en-perseus-con.html

Date and Time: 2013-10-31, 23h 36m UT

Telescope: SC Celestron 9.25″ (235mm)

Eyepiece: 10mm (235x)

White paper, HB2 graphite pencil, and scanned and inverted with Photoshop

Seeing: 4/5 (5 the best)

Transparency: Clear. Rural Skies.

Location Constellation: Perseus

Position: R.A. 01h 42m

Dec. +51° 34′

Thank you and best regards.

California Nebula

NGC 1499 (California Nebula)
NGC 1499 (California Nebula)

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

http://dibujodelcielonocturno.blogspot.com.es/

Watercolor Prom

Solar Prominence - April 22, 2012
Solar Prominence – April 22, 2012

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.

Clear sky to you all

Michel Deconinck

http://astro.aquarellia.com

Evolution of a Solar Prominence

Solar Prominence - September 22, 2013
Solar Prominence – September 22, 2013

Hello from France.

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

Yours Sincerely
Emmanuel Pélegrin

SITE WEB http://planetarn.pagesperso-orange.fr/manu/MANU.htm

NGC 7331 and Companions

NGC 7331
NGC 7331 and Deer Lick Group

Hello,

this is my sketch of NGC 7331, the Deer Lick Group.

Drawn on 5.9.2013 at hohloh, kaltenbronn, black forest, germany.
Telescope used: 18″ at

135x for details in NGC 7331
400x for its companion galaxies.

Drawn with graphite on white paper (using tortillons, erasers)
scanned, inverted, and processed to remove “dust-stars” from scanning, darkened, and used the smudge tool
in PhotoFiltre to soften the Galaxies.

Cheerz,
Arndt

A Gem Amid Diamond Dust

Messier 46
Messier 46 and NGC 2438

Object Name : M46
Object Type : Open Cluster in Puppis
Location : But-gogae Yangdong-myeon Yangpyeong-gun Gyeonggi-do South.KOREA
Date : 2013.2.15 Friday
Media : A4 paper, HB pencil
Equipment : 10′ dobsonian, XW 14mm
Observing conditions : Clear sky
I could identify Planetary nebular(NGC 2438)
Spent 1 and half hour to sketch, 23:00 ~ 00:30