Twilight PanSTARRS

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

My name: Silvia Fabi
Object name: Panstarrs or c/2011 L4
Type: comet
Date: 21/03/2013
Location: Ostellato (Italy)
Media: white pencil on black paper

Hello friends artists,
this is my sketch of the Panstarrs, one of the comet of 2013. The tail of the comet was long enough and the head was very light. This is my first comet and I liked it so much. I observed it with a 100 mm telescope, at 7,30 p.m. It was visible with naked eye like a 2 magnitude star. Moreover I observed it with a 20×80 binocular, and it appeared equal, more or less.

Hope you like this sketch! And I hope you understand my english!

Theophilus and Cyrillus

Theophilus and Cyrillus
Theophilus and Cyrillus

As the evening progressed the sky became mostly clear with some ground fog adding to the light scatter and the inevitable falling temperatures of an early spring night. Nevertheless, it was good enough for some observing and sketching. Crater Theophilus (100km.) was more than 450 kilometers from the terminator but remained an attractive target in the eyepiece as the Moon cleared a nearby building in my southeast.

Theophilus is a complex Erastothenian era crater at just over 1.3 billion years in age with large central peaks of deep crustal material that formed on the rebound from the initial impact. The appearance looks fresh when compared to its much older Nectarian period neighbor Cyrillus (100 km.). It was evident while observing this pair that Cyrillus was showered with ejecta from Theophilus and prior millennia of countless strikes by incoming rocks from space. The central peaks of Cyrillus are smaller, more muted and worn down. 300 kilometers to the west of Theophilus the Apollo 16 astronauts Charles Duke and John Young collected 96 kilograms of rocks over 3 days back in 1972 which included some ejecta from the Theophilus formation.

Remote sensors on the orbital spacecraft Chandrayaan-1 detected Iron rich Magnesium –Aluminum oxides on the central peaks of Theophilus adding to the knowledge of the composition to the deep lunar crust as indicated by a publication last spring.

Two other craters included in the sketch are Mädler (29 km.) also of Erastothenian age and Ibn-Rushd (34 km.) an ancient one at more than 3.2 billion years.

Sketching:

For this sketch I used: black Strathmore 400 Artagain paper 8″ x 10″, white and black Conte’ pastel pencils, a blending stump, white Pearl eraser. Contrast was slightly increased after scanning.

Telescope: 10 inch f/ 5.7 Dobsonian and 6 mm eyepiece 241X

Date: 3-30-2013; 04:30-05:35 UT

Temperature: 2° C (36° F)

Some thin clouds, calm

Seeing: Antoniadi IV poor

Colongitude 128.9 °

Lunation 18.4 days

Illumination 90.1 %

Frank McCabe

Comet PanSTARRS: Panoramica e Particolare

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

Hello Artists,after a long time with rain(GRRRRR!!), I made two sketches about Comet PanStarrs!! I go out from work and I go to hill near Little town of Saltara. Very cold temperature and light icely wind. The clouds covered the zone but ,finally they go out from the horizon. I see the comet under the rest of gray clouds and, on blue paper i made the first sketch with bino 10×50. In the same time I take my big bino 25×100 on tripod and made the second sketch, with pencil on black
paper. Unfortunately the comet was very low and the sketch was very difficult to made.
I hope like you.
Ciao a tutti!!
Giorgio.

Site: Saltara,19 March 2013

Instruments: bino 10×50 and big bino 25×100
Media: Coloured pencil on blue paper, with pencil on black paper
seeing: Very clear after rain but icely temperature!

C/2011 L4 (PanSTARRS) with Horizon
C/2011 L4 (PanSTARRS) with Horizon

H-Alpha Sun – April 1, 2013

H-Alpha Sun - April 1, 2013
H-Alpha Sun – April 1, 2013

Working with different gray pastel pencils works fine on the Moon. I tried the same technique on the Sun and was quite happy with the result. Hope you like it too.

Clear skies

Jef De Wit

Object: Sun

Location: Hove, Belgium (51°09’ N 4°28’ E)

Date and time: 1 April 2013, around 9.30 UT

Equipment: Lunt LS35T

Eyepiece: 13mm Nagler T6 (31x)

Medium: white, gray and black pastel pencils on black paper, scanned, colored with Paint Shop Pro, text added with Paint

Sirsalis and Damoiseau

Sirsalis and Damoiseau Region

Sirsalis and Damoiseau Region
Hover cursor over image to view labels.

Aloha,

I submit a lunar sketch of the Sirsalis & Damoiseau region bordering Oceanus Procellarum at the western region of the Moon created almost a year ago. What a wonderful area to explore with interesting concentric craters of Damoiseau & the double crater of Sirsalis at this angle of light. Unseen Grimaldi lies in the darkness to the west.

Object: Lunar craters Sirsalis & Damoiseau @ ~13 days lunation
Telescope: 12.5” Portaball 9mm Nagler 169X
Location: Maui Hawaii, 4000 ft elevation
Date: 2/4/12 7:45pm
Medium: Black art paper, white & black charcoal

Thia (Cindy) Krach

Lunar Volcanism

Pyroclastic deposits in Alphonsus
Pyroclastic deposits in Alphonsus

Hi all,

I’ve been itching to have a go again at Alphonsus for some time. Along with its two buddies, Arzachel (to left) and Ptolemaeus (at right), this trio are a time line of Lunar history.

Ptolemaeus is the oldest. The crater floor is totally flooded, even the central peak is covered. It was fromed when the Moon was still very hot and lava readily flowed with a large impact.

Arzachel is the youngest. The crater floor is intact with no flooding, the crater walls are terraced with land slides both inside and outside of the crater.

Alphonsus sits bewteen the two in age. The crater floor is only partially flooded with the central peak still visible. The Moon has cooled since Ptolemaeus and lava flow has slowed. BUT, volcanic activity was still occuring after the flooding process had stopped. This is seen from the pyroclastic deposits that sit within Alphonsus. Four deposits lie within this crater and are marked in the labelled pic, and are seen as the darker shaded areas that are easy to see through the eyepiece.

Quite remarkable to consider that from here on Earth we can see the effects of ancient volcanism on a body that isn’t Earth.

Another treasure of the night was the Celestron Ultima LX 8mm eyepiece I used. These eyepiece are much underrated, but are surprisingly good. The 8mm in particular is easy to use for extended viewing. It made the 2.5 hours much more bearable, and my eyes were not as fatigued as they have been after with other sketches that have taken less time to do. It’s one of my favourite eyepieces.

Object: Pyroclastic deposits in Alphonsus
Scope: C8, 8″ SCT
Gear: 8mm Celestron Ultima LX, 250X
Location: Sydney, Australia
Date: 19th March 2013
Media: Soft Pastel, charcoal and white ink on A4 size black paper
Duration: approx 2.5 hrs

Pyroclastic deposits in Alphonsus - Labeled
Pyroclastic deposits in Alphonsus – Labeled

Hipparchus, Albategnius and environs

Hipparchus, Albategnius and environs
Hipparchus, Albategnius and environs

Object Name: Moon landscape
Object Type Lunar Craters
Location Montreal, Canada
Date November 2, 2011
Media Pastel, black paper.

Here is a sketch I made on the 2nd of November between 21 :00 and 21:45 (local time in Montreal). Overlapping the terminator line, craters Hipparchus and Albategnius put on a nice show that evening. The high contrast of the landscape was propitious for a pastel sketch at the telescope. As the sun rose on the higher mountains and crater’s edge, the interplay between light and darkness slowly unveiled new features on the moon surface. I captured an incomplete “X” at the upper right.

The sketch was scanned and the legend was added with Photoshop. The sketch however has not been “retouched”. I present it as it was at the end of the session.

Jean Barbeau

NGC 1169 An Obsecure Galaxy in Perseus

NGC 1169
NGC 1169

Object Name: NGC 1169 in Perseus
Object Type: Galaxy Type Sb/SBb
Location: West Desert, Rush Valley, Utah
Date: November 6 2012
Time: 03:12 UT
Seeing: Antoniadi II
V. Mag: 11.6
Surface Brightness: 14.1
Size: 4.2’ x 2.8’
Scope: 14”Dobstuff with Zambuto mirror
Eyepiece: 10m Pentax XW w/Type I Paracorr (white lettering).
Media: Black Paper with chalk pastel (Mellish Method)

I’ve decided instead of jumping all around to return to the Herschel 400 II to complete that list as my new scope is now done being built. I’m still learning the nuisances of the scope but I need the clouds to get out of the way more at new moon! The galaxy is pretty bright but it is small. Using averted vision shows a faint halo. The core is very bright and there is a 13 to 13.5 mag star (estimated) on the southwest side of the core, rather super-imposed on it.

This sketch is dedicated to the late StepDad of Phil or City-Kid over at CloudyNights who passed away in late October. JC Miller was very interested in astronomy. May his light continue to reach his family and friends though out their lives as the light from objects above continue to reach each of us who look for them.