Thursday, October 12, 2006

Ptolemaeus, Alphonsus & Arzachel 12th Oct 2006

2.5x Tele Vue, Toucam Pro. Some fair seeing, mostly bad.

Straight wall 12th Oct 2006

Moon 12th Oct 2006

Wednesday, October 11, 2006

Cauchy and Fracastorius from 11th Oct 2006

I leapt out of bed at 3:30 this morning to check the seeing for observing the Moon. The seeing wasn't very good, It was misty with clouds that completely obscured the view sometimes.
I thought because of the mist that the seeing would be better, but it was affecting the focus, turning it very blurred at times.
I managed to get a couple of half decent images though and an hour later went back to bed. :-)

Cauchy is a small lunar impact crater on the eastern Mare Tranquillitatis. It is circular and symmetric, with a small interior floor at the mid-point of the sloping inner walls. Due to the high albedo of this bowl-shaped formation, it is particularly prominent at full moon. Just to the northeast of the rim of this crater is the wide rille named Rima Cauchy, a 210-kilometer-long cleft following a line to the northwest.

Southwest of Cauchy crater is a 120-km fault in the surface named the Rupes Cauchy. This wall parallels the Rima Cauchy to the northwest. South of Rupes Cauchy are two lunar domes designated Omega (ω) Cauchy and Tau (τ) Cauchy. They lie to the south and southwest of Cauchy crater respectively. Each lunar dome has a tiny craterlet at the crest.

AS8-13-2344.jpg via Kipp Teagues site

Orbiter Photo

Fracastorius is the lava-flooded remnant of an ancient lunar impact crater located at the southern edge of Mare Nectaris. To the northwest of this formation lies the Beaumont crater, while to the northeast is Rosse.

The northern wall of this crater is missing, with only mounds appearing in the lunar mare to mark the outline. The lava that formed Mare Nectaris also invaded this crater, so the structure now forms a bay-like extension. The remainder of the rim is heavily worn and covered in lesser impact craters, leaving little of the original rim intact. The maximum elevation of the rim is 2.4 km. The most prominent of these craters is 'Fractastorius D', which overlays a portion of the western rim.

The Fracastorius crater has no central peak, but a long, slender rille runs across the middle of the floor in a generally east-west direction.

Sunday, October 08, 2006

Various from 7th & 8th Oct 2006

Highlands 7th Oct 2006

Highland 6 image pan. 2.5x Tele Vue Powermate, Toucam Pro.

Messier & Messier A 8th Oct 2006

I took this with a Tele Vue 2.5x Powermate and a Celestron 2x Barlow together. The AVI was 3000 frames taken at 10fps. Most of it looked very blurrred/grainy and out of focus, but it processed to this. This image is shrunk by 75% to make it look a bit sharper.

The seeing was fair at times, but mostly rubbish.

Saturday, October 07, 2006

Sunspot 7th Oct 2006

Taken at prime focus with IR filter.

Friday, October 06, 2006

Thursday, October 05, 2006

Gassendi and Schiller from 4th Oct 2006

Gassendi: 4 image mosaic, 2x Barlow.
Schiller: 2x Barlow

Copernicus & Aristarchus 4th Oct 2006

Wednesday, October 04, 2006

Cleomedes from 10th Sept 2006

Cleomedes is a prominent lunar crater located in the northeast part of the visible Moon, to the north of Mare Crisium. It is surrounded by rough ground with multiple crater impacts. The irregular Tralles crater is intruding into the northwest rim. To the east is the Delmotte crater. North of Cleomeses is a triple-crater formation with Burckhardt crater occupying the center.
The outer wall of this crater is heavily worn and eroded, especially along the southern part of the wall. The 'Cleomedes C' crater lies across the south-southwest rim. The crater floor is nearly flat, with a small central peak to the north of the mid-point, forming a linear ridge toward the north-northeast. There are several notable craterlets on the floor, including a pair of overlapping craters just inside the northwest rim.
A rille named the Rima Cleomedes crosses the northern floor, running southeast from the northwest rim. This rille branches in a fork after crossing the crater mid-line. Smaller clefts lie in the southeast part of the floor.