Photosphere vs. Corona — What's the Difference?

The photosphere is a star's outer shell from which light is radiated. The term itself is derived from Ancient Greek roots, φῶς, φωτός/phos, photos meaning "light" and σφαῖρα/sphaira meaning "sphere", in reference to it being a spherical surface that is perceived to emit light.

A faintly colored luminous ring or halo appearing to surround a celestial body when viewed through a haze or thin cloud, especially such a ring around the moon or sun, caused by scattering or diffraction of light from suspended particulate matter in the intervening medium. Also called aureole.

The directly visible outer layer or atmosphere of a star, especially of the sun.

The luminous irregular envelope of extremely hot and highly ionized gas located outside the chromosphere of the sun.

(astronomy) A visible surface layer of a star, and especially that of a sun.

(Architecture) An overhanging part near the top of a classical cornice, having a flat outer face.

A sphere of light; esp., the luminous envelope of the sun.

A cigar with a long tapering body and blunt ends.

The intensely luminous surface of a star (especially the sun)

(Anatomy) The crownlike upper portion of a bodily part or structure, such as the top of the head.

(Botany) A crown-shaped, funnel-shaped, or trumpet-shaped outgrowth or appendage of the perianth of certain flowers, such as a daffodil. Also called crown.

(Electricity) A faint glow enveloping the high-field electrode in a corona discharge, often accompanied by streamers directed toward the low-field electrode.

A large, round, pendent chandelier, with spikes around its upper rim to hold candles or lamps, usually hung from the roof of a church.

(anatomy) An upper or crownlike portion of certain parts of the body.

A region of the skull located along the coronal suture, at the junction between the frontal bone and the two parietal bones.

The external (supragingival) portion of the tooth, covered by enamel; the crown.

The circumference of the base of the glans penis in human males.

(architectural element) The large, flat, projecting member of a cornice which crowns the entablature, situated above the bed moulding and below the cymatium.

(astronomy)

The luminous plasma atmosphere of the Sun (the solar corona) or other star, extending millions of kilometres into space, most easily seen during a total solar eclipse.

An oval-shaped astrogeological feature, present on both the planet Venus and Uranus's moon Miranda, probably formed by upwellings of warm material below the surface.

(by extension) Any luminous or crownlike ring around an object or person.

(biology) Any appendage of an organism that resembles a crown or corona (sense 4.1).

(botany) A ring or set of appendages of adaxial tissue arising from the corolla or the outer edge of the stamens, present in some plants (Narcissus, Passiflora, etc.); a paraperigonium.

(zoology)

(virology) A fringe of large, bulbous surface projections on coronaviruses, formed by viral spike peplomers, creating an appearance reminiscent of the solar corona.

(electricity) A luminous appearance caused by corona discharge, often seen as a bluish glow in the air adjacent to pointed metal conductors carrying high voltages.

(meteorology) A circle or set of circles visible around a bright celestial object, especially the Sun or the Moon, attributable to an optical phenomenon produced by the diffraction of its light by small water droplets or tiny ice crystals.

(mineralogy) A mineral zone, consisting of one or more minerals, which surrounds another mineral or lies at the interface of two minerals, typically in a radial arrangement; a reaction rim.

(pathology) A manifestation of secondary syphilis, consisting of papular lesions along the hairline, often bordering the scalp in the manner of a crown.

A crown or garland bestowed among the Romans as a reward for distinguished services.

A coronavirus, especially SARS-CoV-2.

A disease caused by a coronavirus, especially COVID-19.

(poetry) A series of sonnets linked together such that the last word of each is the first word of the next.

A long, straight-sided cigar with a blunt, rounded end.

To surround with a luminous or crownlike ring like the solar corona.

A crown or garland bestowed among the Romans as a reward for distinguished services.

The projecting part of a Classic cornice, the under side of which is cut with a recess or channel so as to form a drip. See Illust. of Column.

The upper surface of some part, as of a tooth or the skull; a crown.

The shelly skeleton of a sea urchin.

A peculiar luminous appearance, or aureola, which surrounds the sun, and which is seen only when the sun is totally eclipsed by the moon.

An inner appendage to a petal or a corolla, often forming a special cup, as in the daffodil and jonquil.

A circle, usually colored, seen in peculiar states of the atmosphere around and close to a luminous body, as the sun or moon.

A crown or circlet suspended from the roof or vaulting of churches, to hold tapers lighted on solemn occasions. It is sometimes formed of double or triple circlets, arranged pyramidically. Called also corona lucis.

A character [

The outermost region of the sun's atmosphere; visible as a white halo during a solar eclipse

(botany) the trumpet shaped or cup shaped outgrowth of the corolla of a daffodil or narcissus flower

An electrical discharge accompanied by ionization of surrounding atmosphere

One or more circles of light seen around a luminous object

(anatomy) any structure that resembles a crown in shape

A long cigar with blunt ends