Theophilus - Bognár Tamás, Zákány - 2007.09.17.
Theophilus – Bognár Tamás, Zákány – 2007.09.17.

Also known as: Theophilus
Date/time: 2007.09.17.
Equipment: 76/900 Newtonian
Magnification and filter(s): 118x
Seeing: 8/10 Transparency: 4/5
Humidity: low
Wind: none
Location: Zákány, Hungary N46°14′ 59,2″ E16°57′ 15,3″
Observer: Bognár Tamás

Description:
Circular formation forming a remarkable trio with Cyrillus and Catharina. Tormented and steep slopes overhanging Sinus Asperitatis from 1200m and supporting Cyrillus to the South-East Theophilus F to the West and Mädler to the East. Very high walls with terraces overlapped by Theophilus B to the North-West. Flat floor. Imposing central mountain 1 400 m high with 4 summits. Line of crests hills and craterlets.

Position:
Longitude: 26.285° East
Latitude: 11.452° South
Side: Nearside
Quadrant: South-East
Area: Theophilus crater North-West region

Atlas and Hercules - Bognár Tamás, Zákány - 2007.09.16.
Atlas and Hercules – Bognár Tamás, Zákány – 2007.09.16.

Also known as: Atlas and Hercules
Date/time: 2007.09.16.
Equipment: 76/900 Newtonian
Magnification and filter(s): 118x
Seeing: 6/10 Transparency: 3/5
Humidity: none
Wind: none
Location: Zákány, Hungary N46°14′ 59,2″ E16°57′ 15,3″
Observer: Bognár Tamás

Schickard crater – 2007.08.25. – Bognár Tamás
Schickard crater – 2007.08.25. – Bognár Tamás

Subject: Schickard crater
Classification: Lunar Craters
Date/time: 2007.08.25.
Equipment: 76/900 Newtonian
Magnification and filter(s): 118x
Seeing: 7/10 Transparency: 3/5
Humidity: low
Wind: none
Observing Loc. : Zákány, Hungary N46°14′ 59,2″ E16°57′ 15,3″
Observer: Bognár Tamás

One of the largest wall-surrounded plains on the visible surface of the moon, extending about 134 miles from N. to S., and about the same from W. to E., enclosing a nearly level area, abounding in detail. Its border, to a great extent linear, is very irregular, and much broken by the interposition of small ring-plains and craters, and on the N. by cross-valleys. Its general height is about 4,000 feet, the loftiest peak on the E. wall rising to more than 9,000 feet above the floor. The inner slopes of this vast rampart are very complex, especially on the W., where many terraces and depressions may be seen under suitable illumination. There are three large ring-plains in the interior, all of them S. of the centre; and at least five smaller ones near the inner foot of the W. wall, which can only be well observed when libration is favourable. The two more westerly of the large ring-plains are connected by a cleft, and there are several short clefts and crater-rows associated with the smaller ring-plains. On the N. side of the area is a number of minute craters. The floor is diversified by two large dark markings–an oblong patch on the S.E. side, abutting on the wall, being the more remarkable; and a dusky area, occupying a great portion of the N. part of the floor, and extending up to the N. border. This is traversed by a light streak running from N. to S., which is the site of a row of minute craters.

Hipparchus crater – 2007.08.20. – Bognár Tamás, Zákány
Hipparchus crater – 2007.08.20. – Bognár Tamás, Zákány

Also known as: Hipparchus crater
Date/time: 2007.08.20
Equipment: 76/900 Newtonian
Magnification and filter(s): 118x
Seeing: 7/10 Transparency: 3/5
Humidity: –
Wind: none
Location: Zákány, Hungary N46°14′ 59,2″ E16°57′ 15,3″
Observer: Bognár Tamás

2007.06.25. – Bognár Tamás Zákány – Sinus Iridum sketch
2007.06.25. – Bognár Tamás Zákány – Sinus Iridum sketch

 

Subject: Sinus Iridum (Latin for “Bay of Rainbows”)
Classification: Sinus Iridum is a plain of basaltic lava that forms a northwestern extension to the Mare Imbrium on Earth’s moon. It is surrounded from the northeast to the southwest by the Montes Jura range. The protruding part of the range at the southwest end is named Promontorium Heraclides, while that at the northeast end is called Promontorium Laplace. This bay and the surrounding mountains is considered one of the most beautiful features on the Moon, and is a favorite among lunar observers.
Date/time: 2007.06.25
Equipment: 76/900 Newtonian
Magnification and filter(s): 118x
Seeing: 7/10 Transparency: 3/5
Humidity: low
Wind: none
Observing Loc. : Zákány, Hungary N46°14′ 59,2″ E16°57′ 15,3″
Observer: Bognár Tamás

Sinus Iridum is formed from the remains of a large impact crater, which was subsequently flooded with basaltic lava, inundating the “sea” wall. The bay itself does not contain any notable impact craters, but does include the satellite crater Heraclides E in the south, Laplace A along the eastern edge, and Bianchini G in the north. The surface is level, but is marked by a number of wrinkle ridges (dorsa).

The selenographic coordinates of this bay are 44.1° N, 31.5° W, and the diameter is 236 km.The feature was given the Latin name for the Bay of Rainbows by Giovanni Riccioli.