Hagecius is a lunar impact crater in the southeastern part of the Moon's near side. It was named after 16th century Czech naturalist Tadeáš Hájek (Latinized as Thaddaeus Hagecius).[1] This crater forms a triangular formation with the craters Rosenberger to the north-northwest and Nearch to the west-northwest. Like both of these craters, Hagecius has undergone erosion from subsequent impacts, and its outer rim is worn and irregular. The southeastern rim in particular is overlaid by three smaller craters designated Hagecius C, B, and G.

Hagecius
Coordinates59°48′S 46°36′E / 59.8°S 46.6°E / -59.8; 46.6
Diameter80 km
Colongitude316° at sunrise
EponymTadeáš Hájek
The crater area in a Selenochromatic format Image (Si)

The interior floor of Hagecius is a level plain with no significant rises. There is a small craterlet to the northwest of the midpoint, and a few tiny craterlets marking the southeastern half of the floor. About a third of the interior floor on this side is also overlaid by the outer ramparts of the three satellite craters mentioned above.

To the northeast of Hagecius is the crater Biela, a younger formation with more distinctive features.

Satellite craters

edit
 
Hagecius and its satellite craters
 
Hagecius crater and its satellite craters taken from Earth in 2012 at the University of Hertfordshire's Bayfordbury Observatory with the telescopes Meade LX200 14" and Lumenera Skynyx 2-1

By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Hagecius.

Hagecius Latitude Longitude Diameter
A 58.2° S 47.2° E 61 km
B 60.4° S 48.9° E 34 km
C 60.7° S 47.5° E 24 km
D 57.1° S 47.0° E 17 km
E 63.3° S 49.1° E 44 km
F 62.3° S 44.8° E 36 km
G 61.8° S 47.6° E 30 km
H 60.4° S 50.7° E 13 km
J 62.6° S 57.8° E 14 km
K 61.2° S 52.0° E 31 km
L 61.5° S 55.7° E 8 km
M 60.0° S 52.0° E 10 km
N 60.2° S 53.1° E 16 km
P 59.8° S 53.2° E 7 km
Q 59.2° S 53.0° E 20 km
R 58.7° S 52.7° E 15 km
S 59.0° S 54.6° E 10 km
T 60.6° S 57.4° E 14 km
V 61.9° S 58.3° E 14 km

See also

edit

References

edit
  1. ^ "Hagecius (crater)". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.