Wednesday, 20 February 2013

Lambert + Pytheas



Lambert (top) and Pytheas (bottom) are both found in the south part of Mare Imbrium.
Lambert has a diameter of 30km and has steep terraced walls with blast fragments north and south. I'd also read about the ghost crater Lambert R but I couldnt make it out, maybe this was because the Terminamator was so close?
Pytheas was similar in appearance to Lambert but smaller at only 20km in diameter.


Telescope / 4" f/11 Lyra
EP 3-6mm Nagler at 6mm x183
2045 UT - 2130 UT
Temp 2˚C
Transparency / Average
Antoniadi II
Colongitude 22.8˚
Phase 67. 8˚
Lunation 9.5 days
Media / Conte pastels and charcoal + black sketch pad

Tuesday, 19 February 2013

Eratosthenes



Eratosthenes sits at the north of Sinus Aestuum and rises from a fairly smooth surrounding area and is almost joined by the foothills of the Montes Alpenninus. 58km in diameter and 3.6km deep and a staggering 3.2 billion years old!


EP / 3-6mm Nagler at x220
18/2/2013
2235 UT - 2315UT
Temp 2˚C
Transparency / Excellent
Antoniadi II
Cologitude 11.4˚
Phase 78˚
Lunation 8.6 days

Monday, 18 February 2013

Lunar X



I've wanted to sketch the lunar X for a while now so last night I set my 4" Lyra up with plenty of time to spare.
The position of the X was easy to find even early in the evening before it showed, Werner crater is directly below the X with Aliacensis below that again, the large crater to the side is Playfair G.
The actual X is made by sunlight falling on the crater ridges of La Caille, Blanchinus and Purbach.

Telescope / 4" f/11 Lyra
EP / 3-6mm Nagler zoom at 5mm x220
17/2/2013
2140 UT - 2235 UT
Temp 3˚C
Transparency / Excellent
Antoniadi III
Colongitude 357˚
Phase 90˚
Lunation 7.53 days


Sunday, 17 February 2013

Mare Serenitatis + Julius Caesar



With excellent seeing and transparency I really didnt know exactly what to sketch of the moon as theres so much to explore and its easy to get side tracked but this area north of Mare Serenitatis really stood out with high mountainous regions stretching through the Termiantor.
Its quite a large area to sketch (maybe too much?) and there was a huge amount of detail between Mare Serenitatis (at the top) and the 90km in diameter crater Julius Caesar at the bottom.


Telescope / 4" f/11 Lyra
EP / 3-6mm Nagler zoom at 5mm x220
16/2/2013
1935 UT - 2040 UT
Temp / 2˚C
Transparency / Excellent
Antoniadi II
Colongitude 346˚
Phase 100˚
Lunation 6.5 days

Sunday, 3 February 2013

M41



M41 / NGC2287 / The little beehive
Constellation - Canis Major
Open cluster
Distance - 2100Ly
Mag 4.5

Date 2/2/13
Seeing - Antoniadi III
Transparency - Average
SQM 21.19 (LM 6.2)

Telescope 16" f/4.5
EP - 26mm Nagler x76 TFoV 1.1˚

Sketch notes
Impressive and bright open cluster, the stars really stood out as a blue colour against the background Milky Way stars.

M50



M50 / NGC2323
Constellation - Monocerous
Open cluster
Distance 3300Ly
Mag 5.9

Date - 2/2/13
Seeing - Antoniadi III
Transparency - Average
SQM 21.44 (LM 6.3)

Telescope - 16" f/4.5
EP - 26mm Nagler x76 TFoV 1.1˚

Sketch notes
Fairly small unremarkable cluster with bright white/blue stars making up its shape.

M46



M46 / NGC2437
Constellation - Puppis
Open cluster
Distance 5300Ly
Mag 6.1

Date - 2/2/13
Seeing - Antoniadi II
Transparency - good
SQM 21.44 (LM 6.3)

Telescope - 16" f/4.5
EP - 26mm Nagler x76 TFoV 1.1˚

Sketch notes
Easily naked eye object.
Seeing and transparency was alot better for this sketch than the previous OC's making the stars sharper but not as bright, I also didnt pick up and colour either.
I used a UHC to 'lose' some of the fainter background stars of the Milky Way and also show more contrast on the PN NGC2438.
Interesting cluster enhanced by the planetary nebula.

M47



M47 / NGC2478=2478
Open Cluster
Constellation - Puppis
Distance 1550Ly
Mag 4.4

Date - 2/2/13
Seeing - Antoniadi II
Transparency - good
SQM 21.39 (LM 6.3)

Telescope - 16" f/4.5
EP - 26mm Nagler x76 TFoV 1.1˚

Sketch notes
Easily naked eye object.
Smaller but brighter than M46, bright blue stars making its shape.

M93



M93 / NGC2447
Constellation - Puppis
Open cluster
Distance - 3600Ly
Mag 6.2

Date - 2/2/13
Seeing - Antoniadi II
Transparency - good
SQM 21.40 (LM 6.3)

Telescope - 16" f/4.5
EP - 26mm Nagler x76 TFoV 1.1˚

Sketch notes
Small, compact and bright open cluster which really showed itself by its blue colour stars against the fainter Milky Way.

M48



M48 / NGC2548
Constellation - Hydra
Open cluster
Distance - 2000Ly
Mag 5.8

Date - 2/2/13
Seeing - Antoniadi II
Transparency - Good
SQM 21.31 (LM 6.3)

Telescope - 16" f/4.5
EP - 26mm Nagler x76 TFoV 1.1˚

Sketch notes
Large and openly spread cluster which nearly filled the entire FoV.

M79



M79 / NGC1904
Constellation - Lepus
Globular cluster
Distance - 43000Ly
Mag 7.7

Date 2/2/13
Seeing - Antoniadi IV
Transparency - Poor
SQM 21.15 (LM 6.2)

Telescope - 16" f/4.5
EP - 10mm Pentax XW x189 TFoV 0.22˚

Sketch notes
Only 14˚ above the horizon when sketched so it was very hard to resolve many stars but I think this would be an interesting globular at a higher altitude.
Even though the skies were dark at SQM 21.15 seeing and transparency really hampered the view.