VCSE - Schickard crater sketch - Bognár Tamás
VCSE – Schickard crater sketch – Bognár Tamás

 

Subject: Schickard crater
Classification: Lunar Craters
Date/time:  2007.08.25.
Equipment: 76/900 Newton
Eyepieces/Mag. Plössl 8mm, 112x
Transparency/Seeing: 3/5, 7/10
Humidity:  low
Wind: none
Moon phase:
Observing Loc. Hungary, Zákány,  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.

Magyar

 

VCSE - Hipparchus crater - sketch - Bognár Tamás
VCSE – Hipparchus crater – sketch – Tamás Bognár

 

Subject: Hipparchus crater
Classification: Lunar Craters
Date/time:  2007.08.20.
Equipment: 76/900 Newton
Eyepieces/Mag. Plössl 8mm, 112x
Transparency/Seeing: 3/5, 7/10
Humidity: low
Wind: none
Moon phase:
Observing Loc. Hungary, Zákány,  N46°14′ 59,2″ E16°57′ 15,3″
Observer: Tamás Bognár

 

Hipparchus is the degraded remnant of a lunar crater. It is located to the southeast of Sinus Medii, near the center of the visible Moon. To the south is the prominent crater Albategnius, and to the southwest lies Ptolemaeus, a feature of comparable dimensions to Hipparchus. Horrocks lies entirely within the northeast rim of the crater. Halley is attached to the south rim, and Hind lies to the southeast. To the north-northeast is the bowl-shaped Pickering, and the flooded Saunder is located off the northeast rim.

Magyar

 

VCSE - Sinus Iridium - Bognár Tamás - 2007
VCSE – Sinus Iridium – Bognár Tamás – 2007

 

 

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
Eyepieces/Mag. Plössl 8mm, 112x
Transparency/Seeing: 3/5, 7/10
Humidity: alacsony, enyhén párás levegő
Wind: none
Moon phase:
Observing Loc. Hungary, Zákány,  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.

 

Magyar