NexStar 50 Lunar Club Observation Log

Name: Barry Mackinnon
NexStar Telescope Model: Nexstar 11 GPS

Note: Most observations done with 2 eyepieces:

________________________________

Object: 1 - Albategnius... Crater
Date Observed: 03/17/2005 & 05/16/2005
Comments: Crater with a flat floor and a good sized central mountain. Many craterlets in the slopes of the rim.

Object: 2 - Alpine Valley... Valley
Date Observed: 03/18/2005
Comments: A long, straight fault that splits the Alps. It looked fairly wide but I couldn’t see any detail on the floor of the fault.

Object: 3 - Alps... Mtn Range
Date Observed: 03/18/2005 & 05/16/2005
Comments: A long, rough mountain chain southeast of Plato. It is split in half by the Vallis Alpes.

Object: 4 - Rupes Altai... Fault
Date Observed: 03/16/2005
Comments: A very long cliff (or ridge) running northwest from Piccolmini. It’s not a straight line but lots of adjoining sections forming a long arc.

Object: 5 - Apennines... Mtn Range
Date Observed: 03/17/2005
Comments: A very long, rugged mountain range that stretches from the northeast to the southwest.

Object: 6 - Archimedes... Crater
Date Observed: 03/19/2005
Comments: Circular crater with steep slopes. It has a flat floor filled with lava.

Object: 7 - Aristarchus... Crater
Date Observed: 03/22/2005
Comments: Relatively small circular crater with steep walls. Too close to terminator to see if it had a central mountain (center was dark).

Object: 8 - Bailly... Crater
Date Observed: 03/24/2005
Comments: A very large old crater near the extreme southwest edge of the moon. Rim was broken up and difficult to see.

Object: 9 - Billy... Crater
Date Observed: 03/22/2005
Comments: A circular crater with a dark, flat floor.

Object: 10 - Cassini... Crater
Date Observed: 03/17/2005 & 07/13/2005
Comments: Circular crater with steep walls. Smooth floor with 2 craterlets within it – one fairly good sized and the other a little smaller.

Object: 11 - Clavius... Crater
Date Observed: 03/19/2005
Comments: A crater with high walls and many good-sized craterlets within it, 2 of them on the rim.

Object: 12 - Copernicus... Crater
Date Observed: 03/19/2005
Comments: Easy to locate crater with high, collapsed walls and 3 central mountains. Also, lots of rays visible in full sunlight.

Object: 13 - Dionysius... Crater
Date Observed: 04/15/2005
Comments: A small bright crater. Off to north side are 7 other craters (not as bright) which are laid out in a curved line.

Object: 14 - Euclides (Euclid)... Crater
Date Observed: 03/21/2005
Comments: Very small round crater with steep slopes. Difficult to locate.

Object: 15 - Furnerius... Crater
Date Observed: 03/13/2005 & 05/12/2005
Comments: Circular crater with several craterlets. The largest craterlet is “off center” to the north. There is a small impact crater visible on the south rim.

Object: 16 - Gassendi... Crater
Date Observed: 03/21/2005
Comments: A circular crater with an “internal” mountain ring. Looks like two central mountains.

Object: 17 - Giordano Bruno... Crater
Date Observed: 10/15/2005
Comments: At a favorable libration on October 15, 2005, I was able to see Gauss ( 36 N; 79 E ) but it was very long and narrow on the eastern rim of the moon. There was little detail visible within the crater. The Apollo lunar photos indicate that Giordano Bruno is located much further east ( 36N; 103 E ) which would put it beyond sight from earth even with the best possible libration.

Object: 18 - Grimaldi... Crater
Date Observed: 03/23/2005
Comments: Large, dark crater with a flat floor near the western edge of the moon.

Object: 19 - Hainzel... Crater
Date Observed: 03/21/2005
Comments: Looks like an elongated crater (3 separate craters all superimposed). Two of them have central mountains.

Object: 20 - Hercules... Crater
Date Observed: 03/14/2005 & 07/12/2005
Comments: Circular crater with a flat floor and a very prominent craterlet (off-center to the southeast).

Object: 21 - John Herschel... Crater
Date Observed: 08/17/2005
Comments: An old crater whose rim is broken and faint. There is a double crater (2 overlapping craters) on its south rim and 2 small craters located near the center.

Object: 22 - Hesiodus Sunrise Ray... Occurrence
Date Observed: 04/17/2005
Comments: About 30 minutes after sunset, Pitatus was fully illuminated and an initial spot of light was observed on the far side of Hesiodus ( on top of the crater wall). After a while, the light stretched further down the crater wall creating an elongated strip of light. The very top of a small central crater (in the middle of Hesiodus) was also illuminated. The strip of light extended approximately half way across the crater floor. It was the shape of a golf tee with the top of the tee positioned on the top of the crater wall , pointing back towards Pitatus. The ray gradually widened and stretched fully across the crater floor. What a sight!

Object: 23 - Kepler... Crater
Date Observed: 03/21/2005
Comments: A relatively small crater with very noticeable bright rays in all directions. Steep slopes. Looked like a small elongated central mountain or ridge?

Object: 24 - Linne... Crater
Date Observed: 04/18/2005
Comments: Very small bright crater. Difficult to see when near the terminator….easier to see in full sunlight.

Object: 25 - Manilius... Crater
Date Observed: 04/16/2005
Comments: Easy to locate. Steep sides and a central mountain.

Object: 26 - Maurolycus... Crater
Date Observed: 03/16/2005 & 07/13/2005
Comments: Circular crater with a central mountain (with 2 or 3 central peaks)? I could see 3 small craterlets on the floor and one larger one on the rim.

Object: 27 - Menelaus... Crater
Date Observed: 05/15/2005
Comments: Steep walls and a central mountain. Smaller than nearby Manilius

Object: 28 - Messier A... Crater
Date Observed: 03/14/2005 & 04/12/2005
Comments: Small dark crater clearly visible (next to Messier) on a smooth, flat floor. Long “comet trail” visible to the wet.

Object: 29 - Petavius... Crater
Date Observed: 03/13/2005
Comments: High walls and central mountain visible. A line (rim or trench) just able to be seen extending from the center of the crater to the edge.

Object: 30 - Piccolomini... Crater
Date Observed: 03/16/2005 & 07/13/2005
Comments: Circular crater with a central mountain. Looks like 3 or 4 peaks. Steep slopes on one side.

Object: 31 - Pico... Mountain
Date Observed: 03/19/2005
Comments: A large peak sticking out of a flat floor. Easy to locate near Plato.

Object: 32 - Plato... Crater
Date Observed: 03/19/2005
Comments: Very easy to locate this crater. It has steep sides and a very flat floor filled with lava. I couldn’t see any craterlets…only the “floaters” in my eye!

Object: 33 - Plinius (Pliny)... Crater
Date Observed: 03/16/2005 & 07/12/2005
Comments: Circular crater with a central mountain. Easy to locate - all by itself off the edge of Mare Serenitatis.

Object: 34 - Posidonius... Crater
Date Observed: 03/16/2005 & 07/12/2005
Comments: Circular crater with high walls. Small crater in center (actually, off-center). Some ridges visible on floor.

Object: 35 - Proclus... Crater
Date Observed: 03/14/2005
Comments: A relatively small formation with high steep walls. Could not see a central mountain.

Object: 36 - Pyrenees Mountains... Mtn Range
Date Observed: 04/13/2005
Comments: Long mountain range running north & south. Looked very high. Entire length was in shadow on 1 side.

Object: 37 - Pythagoras... Crater
Date Observed: 08/17/2005
Comments: A large crater with high walls, a flat floor and 2 central mountain peaks.

Object: 38 - Pytheas... Crater
Date Observed: 03/19/2005
Comments: A small crater with high walls. It’s location was very close to the terminator so the central mountain was not visible.

Object: 39 - Reiner Gamma... Discolor
Date Observed: 08/17/2005
Comments: A small, white discolored square on a smooth dark floor. Looks like a child’s kite with a white “tail” trailing off to the north.

Object: 40 - Reinhold... Crater
Date Observed: 04/18/2005 & 07/15/2005
Comments: A circular crater with steep, collapsed terraced walls. Easy to find near Copernicus.

Object: 41 - Rima Ariadaeus... Fault
Date Observed: 03/17/2005 & 07/12/2005
Comments: A long straight rim or fault. Thought I could see some debris on the floor near the center of this line.

Object: 42 - Rupes Cauchy... Fault
Date Observed: 03/16/2005 & 07/13/2005
Comments: A very long cliff or fault running northwest from Piccolomini. It’s not a straight line but there are lots of adjoining sections forming a long arc.

Object: 43 - Rupes Recta... Fault
Date Observed: 03/18/2005 & 05/16/2005
Comments: A long, very straight fault with a mountain at the south end of it. Easy to find.

Object: 44 - Schiller... Crater
Date Observed: 03/21/2005
Comments: A very long, thin crater with a flat floor and a central mountain at one end only.

Object: 45 - Sinus Medii... Bay
Date Observed: 03/18/2005 & 05/16/2005
Comments: A small sea. It is very flat except for 2 small craterlets in the eastern portion and 1 small mountain in the western portion.

Object: 46 - Theophilus... Crater
Date Observed: 03/16/2005 & 07/13/2005
Comments: Good sized crater with collapsed wall to the north. Looks like 4 central peaks (2 large & 2 smaller). Small craterlet on rim.

Object: 47 - Timocharis... Crater
Date Observed: 03/19/2005
Comments: Isolated crater in southeast part of Mare Imbrium. It has high walls and a small central mountain was visible.

Object: 48 - Tycho... Crater
Date Observed: 03/19/2005
Comments: Circular crater with high walls and steep slopes. Lots of rays visible in full sunlight.

Object: 49 - Vallis Schroteri... Valley
Date Observed: 08/17/2005
Comments: A long valley in the shape of a half circle, wider at one end and narrowing at the other end. The wide end starts near 2 similar-sized craters; one with a dark floor and the other with a white floor.

Object: 50 - Wargentin... Crater
Date Observed: 03/24/2005
Comments: A crater with a smooth floor (raised?). Looked like a line / valley that cuts the crater in half.