Author: Jeremy Perez

PanSTARRS and the Andromeda Galaxy

C/2011 L4 (PanSTARRS) and M31
C/2011 L4 (PanSTARRS) and M31

I made this sketch using my 15×70 binoculars at 1:45 UTC on 4/5/2013. I was just able to get both objects in the the field of view. The comet was brighter than M31, particularly in the core, but smaller. The comet’s tail was noticeably wider than it was when I observed it a few weeks earlier on 3/13. It was an interesting conjunction but was hard to get a lot of detail, M32 and M110 were not even visible, because they were both about 10-15 degrees from the horizon.

PANNSTARRS and M31
Comet and Galaxy
Green Bay, WI
4/5/2013
Graphite Pencil and Blending Stump on White Paper.

Thanks,

Brian Chopp

C/2011 L4 (PanSTARRS) from March 17, 2013

C/2011 L4 (PanSTARRS)
C/2011 L4 (PanSTARRS)

Hello
He wants you to meet my sketch of Comet C/2011 L4 PanSTARRS::

Object Name: C/2011 L4 PanSTARRRS
Object Type: Comet
Location: Mystków, Poland
Date: 17.03.2013
Media: Pencil, white paper, eraser

Observer: Kuba Warchoł (kubol0567)

Additional Information:
In the sketch, comet is shown in the magnification 30x.
Observations made with a telescope Tasco 50×50
Weather at the time of observation: 9/10

Hale-Bopp’s Inner Coma

C/1995 O1 (Hale-Bopp)
C/1995 O1 (Hale-Bopp)

Hei Artists!

Not many artists on ASOD make sketches of the structures in the inner coma of comets.
Very interesting things may happen in the light coma, which is difficult to show photographic.
The spirals in the comet Hale-Bopp were sharp (as a painting) visually, but at best diffuse on
photos! Therefore it is very importent to document visually and on a sketch.
By using high power on the telescope you can observe details (jets) near the nucleus, and
over a period of time other interesting phenomenon, the most dramatic : you may discover a
breaking of the nucleus!
Such structures is also best seen against a lighter sky, as with observations of Venus.
Remember: Many things can happen in the head of comet ISON later this year!!
Back in 1976 , I could observe the splitting in comet West (3 parts)!
I used watercolor crayons for the sketch.
loc. : Trondheim, Norway.

Clear sky and best wishes from Per-Jonny Bremseth!

Saturn and Moons – April 14, 2013

Saturn - April 14, 2013
Saturn – April 14, 2013

SW BD 120ED a 300x (Baader Genuine Ortho 6mm y Barlow TeleVue x2) Filter Neodymium

14 April 2013 23:30 h. UTC (civil time 15 April 2013 02:30 h)

Height above the horizon 36 º Observation at sea level in Barcelona (Spain)

Media: pencil in white paper, Microsoft Paint

Notes:

Horizontal image investment because used diagonal mirror.

The predominant color on the planet is a very pale yellow (at other times showed an intense golden) contrasting with some greyish belts with ill-defined irregularities. It clearly shows the shadow of the planet on the rings.

The Cassini Division shows a high contrast and a black is intense and well defined.

I could clearly see the satellites Titan, Rhea, Dione. Tethys only very weakly.

Enceladus, I’d be on the limit of this equip, but It was not possible to distinguish. Mimas is beyond the scope of this opening.

The Peculiar Shape of NGC 4449

NGC 4449
NGC 4449

Hello asod, this sketch show is pretty irregular galaxy. During the observation, I could visualize the extreme deformities, without much effort. A large object that caused a great sensation through the eyepiece. Do not stand by its size but by its peculiar shape.

Regards.

Object name: caldwell 21 NGC 4449
Object type: galaxy
Location: Pelayos de la presa Madrid ( spain )
Date: 5 April 2013
Media: graphite pencil,processed and inverted gimp 2.8
Optical equipment: Dobsonian telescope 10″ F/5 Meade lightbridge , eye piece Explore scientific 18mm 82°
Magnification 70x True field 1,1°

Sky conditions: Moderate windnelm Nelm 5,2. Temperature 1,5°C relative humidity 53% Borthle scale 5/9

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

HR 7169-70 and a Nebula Trio

Double Star HR 7169 & 7170 in Corona Australis with NGC 6726, 6727 & 6729
Double Star HR 7169 & 7170 in Corona Australis with NGC 6726, 6727 & 6729

Object Name: Double Star HR 7169 & 7170 in Corona Australis with NGC 6726, 6727 & 6729.
Object Type: Double Star with three Bright Nebulae
Location: The Summit of Haleakala on Maui at 10,000 ft. elevation
Date: July 24, 2012
Media: Light pencil on white paper, scanned to GIMP, and color inverted, Labelled in Mac Preview.
Notes: This sketch was executed with a Celestron C925 on a CGEM with a Swan 40mm EP and a Williams Optics 45º erecting prism diagonal at 58X. The wind was 10mph, Temp: 47ºF, Humidity 24% under a first quarter moon at 2130. The Lit. Rho is 12.8″, Theta is 280º. I measured the pair with a Meade 12mm Astrometric EP and obtained an average Rho of 14.8″, and average Theta of 218º.
I am interested in the nebulosity of the three NGC objects that are included in the field of view. I plotted 25 field stars including one outside the F.O.V. to the west and two outside the F.O.V. to the WSW.

Steve McGaughey
Haleakala Amateur Astronomers

Comète PanSTARRS

C/2011 L4 (PanSTARRS)
C/2011 L4 (PanSTARRS)

Bonjour,

Voici un dessin de la comète C2011L4 Panstarrs fait avec un dobson de 345mm, focale 1504mm et un oculaire de 40mm (37 fois de grossissement)
Elle est encore bien brillante et très belle à voir.
David Antao
Fayssac (81) France

Hello,

Here is a Sketch of the comet C2011L4 Panstarrs done with a 345mm Dobson, 1504mm focal length and an eyepiece of 40mm (37 times magnification).
It is still bright and beautiful to see.
David Antao
Fayssac (81) France

C/2011 L4 (PanSTARRS) Original Negative Sketch
C/2011 L4 (PanSTARRS) Original Negative Sketch