Friday, 14 March 2014

Grimaldi




Grimaldi
13/3/14  2100UT
Phase 31.8˚
Lunation 12.5 days
Illumination 92.5%

Another large (222km x 222km) crater surrounded by smaller craterlets and its only 4 billion years old!!! :)

Thursday, 13 March 2014

Bullialdus




Bullialdus
10/3/14 - 2000UT
Phase 64.6˚
Lunation 9.5 days
Illumination 71.5%

61km x 61km in diameter and observed while the terminator was sweeping across making it really stand out. The smaller Bullialdus A+B craters are below.

Sinus Iridum




Sinus Iridum
11/3/14 - 2040UT
Phase 53.9˚
Lunation 10.5 days
Illumination 79.5˚

Sinus Iridum is a huge crater at 400km x 260km which sits in the NW corner of Mare Imbrium.
Too many smaller craters to name in this sketch, a low power EP was used on a night of poor seeing.

Monday, 10 March 2014

Jupiter 9/3/14




Good seeing conditions on Jupiter last night, around Antoniadi II reducing to AIII later.
Thats the shadow of Ganymede and IO is just about to transit Jupiter on the following limb.

Sketch notes -
NTZ stretched only halfway across partially separating NPR to NTB.
A couple darkened areas on the lower part of the NTB, couldnt make out if they were ovals or linked?
NEB seemed lighter to when I last viewed Jupiter almost a month ago.
Large central festoon with two either side, hard to make out detail the further into the EZ they went.
Lots going on in the SEB! Large white patch preceeding GRS and two in the wake followed by a dark strip all the way to the following limb almost splitting the SEB.
Salmon pink GRS which was dark in the center with a darkened outline (most detail I've ever seen in the GRS).
No detail seen in entire southern region.

Cassini




Cassini crater measures 57x58km and sits in the SW corner of Mare Imbrium, two smaller craters are inside A + B measure 17km and 9km in diameter.

Date - 8/3/14
time - 20.30 UT
Lunation - 7.5 days
Phase - 86.2˚

Tuesday, 4 March 2014

M94




M94
Constellation - Canes Venatici
Spiral galaxy
Distance - 14Mly
Mag 8.91

Date - 3/3/14
Transparency - Good
SQM 21.64 (LM 6.4)

Telescope - 16" f/4.5
EP - 14mm Delos x135 TFoV 0.32"

Sketch notes
Looked just like an elliptical galaxy at first but in a similar way to M106 the more time spent observing the more detail showed. A faint halo surrounding a bright core.
Total time spent observing this and M106 was just over two hours and I enjoyed every minute of it!

M106




M106
Constellation - Canes Venatici
Spiral galaxy
Distance - 23Mly
Mag 8.39

Date 3/3/14
Transparency - Good
SQM 21.60 (LM 6.4)

Telescope - 16" f/4.5
EP - 17.3mm Delos x109 TFoV 0.39"

Sketch notes
At first just a fuzzy oval shape could be seen and I thought this would be another disappointing galaxy as far as seeing structure is concerned but after 15 Minutes observing slight changes in contrast could be seen and the spiral arms appeared.
A bright nucleus with two spiral arms the top arm extending out further than the lower arm. Few background stars.

Saturday, 1 March 2014

M105 / NGC 3384




M105 / NGC 3384
Constellation - Leo
Elliptical galaxy
Distance - 32Mly
Mag 9.3

Date 1/3/14
Transparency - Poor
SQM 21.34 (LM 6.3)

Telescope - 16" f/4.5
EP - 14mm Delos x135 TFoV 0.32"

Sketch notes
M105 appealed the brightest and largest of the three galaxies with a bright nucleus.
NGC 3384 appears in the RASC Finest NGC's was only slightly dimmer with a similar shape and bright core.
The smallest and faintest galaxy of the trio was NGC 3389 which came into view with direct vision as soon as I increased the magnification and lowered the exit pupil.

M96




M96
Constellation - Leo
Spiral galaxy
Distance - 32Mly
Mag 9.6

Date - 1/3/14
Transparency - Poor
SQM 21.20 (LM 6.2)

Telescope - 16" f/4.5
EP - 10mm Delos x189 TFoV 0.22

Sketch notes
Very similar in size, shape and description to M95.

M95




M95
Constellation - Leo
Spiral galaxy
Distance - 31Mly
Mag 9.6

Date 28/2/14
Transparency - Poor
SQM 21.37 (LM 6.3)

Telescope - 16" f/4.5
EP 14mm Delos x135 TFoV .32"

Sketch notes
A faint halo surrounding a bright core, very little if any detail seen certainly not confident enough to add anything to the sketch.