Caption: "PIA19562: Dawn RC3 Image 19. This image of Ceres ⚳ is part of a sequence taken by NASA's Dawn spacecraft (2007--2018) on 2015 May05--May06 from a distance of 13,600 km (∼ 28.8 Ceres radii)." (Slightly edited.)

Features:

1. Ceres ⚳ was first asteroid. It was discovered 1801 Jan01 by Guiseppe Piazzi (1746--1826) at the Palermo Observatory in Sicily and named Ceres for the Roman goddess Ceres, the goddess of the harvest---from her name, we get cereal---and "whose earthly home, and oldest temple, lay in Sicily" (Wikipedia: Ceres: Middle Republic; Wikipedia: Ceres: Name).

2. Ceres facts:
   1. Astronomical symbol: : Probably a stylized scythe, appropriate for Ceres (mythological, the Roman goddess of the agriculture, harvest, cereals, etc..
   2. Mean orbital radius: 2.7675 AU.
   3. Eccentricity: 0.075823.
   4. Orbital period: 1681.63 days = 4.60405 Julian year.
   5. Sidereal rotation period: 0.3781 days = 9.074 hours prograde (i.e., eastward as seen on the sky and rightward in the image???. The rotation axis is the top to bottom??? and it is tilted by 4° from the ecliptic axis.
   6. Mean radius: 473 km.
   7. Dimensions: (965.2 x 961.2 x 891.2) ± 2.0 km. So Ceres is pretty round, but is definitely a bit oblate due to the centrifugal force.
   8. Oblateness f = (a-b)/a = 0.07475, where a is equatorial radius and b is polar radius.
   9. Mass: 9.393(5)*10**20 kg = 0.00015 Earth masses = 0.0128 Moon masses.

3. Ceres seems to be a typical airless rocky body: lots of impact craters mainly from the heavy bombardment and surface pounded down and smoothed to regolith by space weathering and diurnal temperature cycle weathering.

4. Ceres may be 25 % water ice by mass (see NASA: Ceres: In Depth; Wikipedia: Ceres: Internal structure). The water ice is mostly subsurface.

   The large water ice component accounts for Ceres' relatively low density: 2.161(9) g/cm**3.

5. Ceres has bright spots that are probably a relatively high albedo salt (see Wikipedia: Ceres (dwarf planet): Dawn mission).