Apollo 15 Landing Site
Last evening proved to be a fine night for observing the Moon and the planets. The atmosphere at sunset settled down to a Pickering 8/10 and 9/10 for brief intervals. This was predicted so I had two telescopes outside (my 18 inch f/4.9 and 13.1 inch f/6 both Dobsonians). At 373x using the 18 inch scope I could clearly see the floor of Palus Putredinis (The Marsh of Decay) and not far away Rima Hadley at the foot of Montes Apenninus. I spent a 3 hour interval on this sketch but actual sketching time was more like 2 hours. The sketch was done using the smaller scope because it is driven. 4 mm and 6 mm eyepieces gave me magnifications of 499x and 333x and occasionally I used the 18 inch scope to verify some of the meanders of Hadley rille and other small features. I have marked the landing site (red dot) of Apollo 15 Lunar Landing Module which occurred the summer of 1971, a very exciting time for the US space program.
Craters visible in this sketch include Hadley C 6 km. in diameter and Aratus (10 km.).
For this sketch I used: Gray sketching paper, 9”x 11”, white and black Conte’ pastel pencils and blending stumps.
Telescopes: 13.1 inch f/ 6 Dobsonian and 18 inch F/4.9, eyepieces : 4mm, 6mm
Date: April 29, 2015 01:00-04:00 UT
Temperature: 4.4°C (40°F)
Seeing: Pickering 8.5
Co longitude: 29.9°
Lunation: 10 days
Illumination: 75.9 %
find attached a charcoal and pastel sketch of Aristarchus, Herodotus and the famous Vallis Schröteri. I hope you like it.
Object Name: Vallis Schröteri, Aristarchus, Herodotus
Object Type: Lunar Valley and Crater
Location: Germany, Dusseldorf area
Date: 2015-01-02, 1800-1845 CET
Media: chalk pastel pencil and charcoal pencil on black sketching cardbox
Telescope: Martini 10” f/5 Dobsonian
Eyepiece: Skywatcher HR Planetary 5mm
This was one of those nights things just fall together. Excellent seeing and light enough from the Moon that I could see the paper well. After finishing my sketch at the eyepiece I went inside to clean it up and was pleasantly surprised that I liked it pretty much the way it was.
110km wide Gassendi Crater showed some excellent roughened floor details with hummocks casting shadows as well as floor rilles illuminated as bright & dark lines. Rima Mersenius is brilliantly lit on the terminator and the bright scarp of Rupes Liebig can be seen at the base of the wall.
Gassendi Crater, Mersenius Rille, Rupes Liebig, Mare Humorum @11.7 days lunation
.12/2/14 2030-2140 HST
12.5″ Portaball, 227x
Canson Black paper and white and black Conte’ Crayon, white charcoal pencil
Photoscape to adjust contrast
Cindy (Thia) Krach
Haleakala Amateur Astronomers
The Aristarchus Plateau, the lunar crater Aristarchus and environs – October 5, 2014[/caption]The Aristarchus plateau is one of the biggest and most spectacular volcanic regions in the Moon. With good seeing and the Moon high above the horizon, the region was impressive on October 5th, when it was near the terminator. Vallis Schröteri, the giantic lava channel meanders through the plateau starting from the famous Cobra Head vent, which is now mostly under shadow. The Aristarchus crater has a very bright wall with two dark bands; and to its north, Rupes Toscanelli stands out nicely. Finally, to the south of the plateau, the Herodotus Omega dome is easy to see, thanks to the oblique illumination.
Object Name: Gassendi
Object Type: Lunar Crater
Location: Dunboyne Ireland
Date: 4th October 2014
Media: Graphite pencil H2, H3 & B6 with standard white stock and technical drawing equipment.
This is actually sketched as observed through the eyepiece with a 15mm on a 9.25 SCT rather than from the phone screen. The seeing was fair but a weather front was fast approaching and just managed to observe long enough to capture this detail. At the same time I took some snapshots through the eyepiece with my smartphone for a smartphone astronomy site – so got to do both before the clouds rolled in. Adding the phone to the sketch allows me to add a technical drawing into the mix which I not (only) enjoy but also allows me to capture the evenings activities and optical equipment used during the session.
Pitatus is an old, large 97 km. diameter crater on the edge of Mare Nubium. The floor of this crater has a linear central peak which was casting a fine elongated triangular shadow at the time of this observation and sketch. To the south craters Wurzelbauer (88 km.) and Gauricus (79 km.) could be seen; both of these craters show badly warn rims; both much older than Pitatus. Attached to the northwest rim of Pitatus is the crater Hesodius (43 km.). At about the eighth or ninth day of lunation you can observe the famous “sunrise ray” beaming across the floor of Hesodius through a break in the wall with Pitatus. This is certainly a sight worth observing.
For this sketch I used: Black Strathmore 400 Artagain paper, 12”x 9”, both white and
black Conte’pastel pencils and blending stumps.
Telescope: 10 inch f/5.7 Dobsonian and 9mm eyepiece 161x
Date: 09-17-2014 10:00-11:25 UT
Temperature: 5°C (42°F)
Seeing: Antoniadi III
Co longitude: 187.3°
Lunation: 22.6 days
Illumination: 39.0 %
Here is a sketch of the Moon on the 5th of September from my backyard
in Adelaide, South Australia.
The moons phase was waxing at 83%, with only the very western edge
still in shadow. I observed with a C11 SCT. Seeing was quite
reasonable, so I took a 15mm eyepiece + 2x Barlow for a close look.
The shallow illumination on Mare Humorum made the creases on the mare
floor stand out. Crater Gassendi, toward the bottom, showed stark
shadows. Rimae Hippalus was visible, passing through the partially
submerged crater Hippalus at the top right. Because I used a diagonal
prism, the sketch is mirror imaged.
I used pastel chalks and black and white pastel pencils on black
This is a sketch of the crater Posidonius made trought my 6” achromatic refractor (TS Individual 152/900), binoviewer, a pair of 10 mm eyepieces (BCO´s) and Barlow that gave me 330x. The seeing was very poor at the beginning of the session but it was improved until I could get very stable view of this formation.
Posidonius is a beautiful crater that can be classified as a FFC crater (Floor Fractured Crater). It has several fractures on its floor that can be observed with small telescopes, and also the amazing Rima Posidonius, a lava channel that crosses the crater from north to south on the eastern part of the crater. The origin of this kind of FFC´s is controversial but the modern theories suggest that a magmatic intrusion below the crater bulged and fractured the floor.
The complex pattern of the shadows and the variety of characteristics and formations inside Posidonius make this crater a very interesting observation target for any amateur astronomer.
I hope you to enjoy with this sketch.
•Object Name: Posidonius crater
•Object Type: Lunar crater, FFC crater
•Location: Vitoria-Gasteiz (Basque Country)
•Media: graphite pencil on white paper, captured with digital camera and processed with Gimp.
If you wish to read more about this observational report and others, please visit the web of my astronomical group (www.laotramitad.org).
Object Name: Rupes Recta
Object Type: Lunar feature
Location: Maastricht – Netherlands
Date: April 18th, 2013 – 19.00h UTC
Media: Graphite pencil 5B on white paper
Seeing: Variable, with moments of very good conditions
Equipment: 12″/F5 Dobson – Nagler 3-6mm Zoom – 375x