Dubyago (crater)
Encyclopedia
Dubyago is a lunar
crater
that lies in the eastern limb of the Moon
, and it appears significantly foreshortened when viewed from the Earth
. It lies along the southern shore of the Mare Undarum
, to the southeast of the crater Firmicus
.
This crater has a somewhat worn outer rim which dips down to a low point along the northern rim, and has its maximum altitude along the eastern side. The most notable aspect of this crater, however, is the dark hue of the interior floor which matches the albedo
of the lunar mare
to the northwest. This darker shading makes the crater stand out somewhat from its surroundings.
Dubyago has an unusual number of satellite craters, several of which have since been given names by the IAU
. The most notable of these is Dubyago B, which is nearly attached to the southeastern rim of the main crater.
The name of this crater has also been spelled Dubiago in some publications.
The following craters have been renamed by the IAU
.
Moon
The Moon is Earth's only known natural satellite,There are a number of near-Earth asteroids including 3753 Cruithne that are co-orbital with Earth: their orbits bring them close to Earth for periods of time but then alter in the long term . These are quasi-satellites and not true moons. For more...
crater
Impact crater
In the broadest sense, the term impact crater can be applied to any depression, natural or manmade, resulting from the high velocity impact of a projectile with a larger body...
that lies in the eastern limb of the Moon
Moon
The Moon is Earth's only known natural satellite,There are a number of near-Earth asteroids including 3753 Cruithne that are co-orbital with Earth: their orbits bring them close to Earth for periods of time but then alter in the long term . These are quasi-satellites and not true moons. For more...
, and it appears significantly foreshortened when viewed from the Earth
Earth
Earth is the third planet from the Sun, and the densest and fifth-largest of the eight planets in the Solar System. It is also the largest of the Solar System's four terrestrial planets...
. It lies along the southern shore of the Mare Undarum
Mare Undarum
Mare Undarum is an uneven lunar mare located just north of Mare Spumans on the lunar near side, between the crater Firmicus and the eastern limb. It is one of the many elevated lakes contained in the Crisium basin, surrounding Mare Crisium. The selenographic coordinates of this mare are 6.8° N,...
, to the southeast of the crater Firmicus
Firmicus (crater)
Firmicus is a lunar crater that lies in the eastern part of the Moon's near side, so that from Earth it appears oval in shape due to foreshortening. It is, however, very nearly circular. The crater is located to the west of the Mare Undarum, and northeast of the similar-sized crater Apollonius. To...
.
This crater has a somewhat worn outer rim which dips down to a low point along the northern rim, and has its maximum altitude along the eastern side. The most notable aspect of this crater, however, is the dark hue of the interior floor which matches the albedo
Albedo
Albedo , or reflection coefficient, is the diffuse reflectivity or reflecting power of a surface. It is defined as the ratio of reflected radiation from the surface to incident radiation upon it...
of the lunar mare
Lunar mare
The lunar maria are large, dark, basaltic plains on Earth's Moon, formed by ancient volcanic eruptions. They were dubbed maria, Latin for "seas", by early astronomers who mistook them for actual seas. They are less reflective than the "highlands" as a result of their iron-rich compositions, and...
to the northwest. This darker shading makes the crater stand out somewhat from its surroundings.
Dubyago has an unusual number of satellite craters, several of which have since been given names by the IAU
International Astronomical Union
The International Astronomical Union IAU is a collection of professional astronomers, at the Ph.D. level and beyond, active in professional research and education in astronomy...
. The most notable of these is Dubyago B, which is nearly attached to the southeastern rim of the main crater.
The name of this crater has also been spelled Dubiago in some publications.
Satellite craters
By convention these features are identified on lunar maps by placing the letter on the side of the crater mid-point that is closest to Dubyago.| Dubyago | Latitude | Longitude | Diameter |
|---|---|---|---|
| B | 2.8° N | 70.2° E | 36 km |
| D | 1.4° N | 71.2° E | 14 km |
| E | 1.3° N | 69.0° E | 12 km |
| F | 1.8° N | 69.4° E | 9 km |
| G | 1.8° N | 69.0° E | 9 km |
| H | 2.3° N | 69.2° E | 8 km |
| J | 2.9° N | 69.6° E | 11 km |
| K | 1.5° N | 68.2° E | 9 km |
| L | 1.9° N | 68.1° E | 7 km |
| M | 2.5° N | 68.1° E | 12 km |
| N | 1.4° N | 67.0° E | 7 km |
| R | 2.5° N | 66.3° E | 8 km |
| T | 4.8° N | 72.3° E | 9 km |
| V | 5.9° N | 70.0° E | 12 km |
| W | 6.5° N | 69.9° E | 9 km |
| X | 6.5° N | 73.0° E | 8 km |
| Y | 4.2° N | 68.2° E | 7 km |
| Z | 3.8° N | 70.9° E | 9 km |
The following craters have been renamed by the IAU
International Astronomical Union
The International Astronomical Union IAU is a collection of professional astronomers, at the Ph.D. level and beyond, active in professional research and education in astronomy...
.
- Dubyago C — See RespighiRespighi (crater)Respighi is a small lunar impact crater that is located to the southeast of the crater Dubyago, near the eastern limb of the Moon. To the east is the comparably sized Liouville....
- Dubyago P — See PomortsevPomortsev (crater)Pomortsev is a small lunar crater that is located in the eastern part of the Moon's near side. It lies on the eastern edge of Mare Spumans, to the southwest of the crater Dubyago. This formation was previously designated Dubyago P before being given a name by the IAU...
- Dubyago Q — See StewartStewart (crater)Stewart is a small lunar impact crater that lies to the northeast of the Mare Spumans, a small lunar mare near the eastern limb of the Moon. It is located to the north of the crater Pomortsev, and to the southwest of the lava-flooded Dubyago. Stewart was previously designated Dubyago Q before being...
- Dubyago S — See LiouvilleLiouville (crater)Liouville is a small lunar impact crater that is located near the eastern limb of the Moon. It lies to the southeast of the larger crater Dubyago, and was previously designated Dubyago S before being given a name by the IAU....
- Dubyago U — See BoethiusBoethius (lunar crater)Boethius is a small lunar impact crater located on the east edge of Mare Undarum near the eastern lunar limb. To the southwest is the dark, lava-flooded crater Dubyago....