Shallow sky
Encyclopedia
Shallow sky is a term sometimes used by amateur astronomers, as the opposite to deep sky
. The shallow sky is space within our solar system, plus our own atmosphere. Sky phenomena such as planetary conjunctions, solar eclipse
s, lunar eclipse
s, as well as atmospheric phenomena like halo
es, rainbow
s, and noctilucent clouds, are all occurring in the shallow sky.
The Shallow Sky Bulletin (ISSN 0897-2532) was published by Stephen M. Smith from 1986 through 2000. Mr. Smith operated The Comet Rapid Announcement Service (CRAS) to disseminate notices about newly discovered bright comets, news about comets and daily positions (ephemerides) for observable comets. The common practice for publishing comet tables was to display positions at 10-day intervals. All of the comet position tables published in SSB were at 1-day intervals. During the 14-year run of SSB, CRAS subscribers were informed about all observable comets.
In the 2006 Apr. 13 issue of The Minor Planet Circulars/Minor Planets and Comets, published by The Minor Planet Center of the Smithsonian Astrophysical Observatory, Mr. Smith's work was honored by the naming of minor planet 9891 Stephensmith.
Deep sky
Deep-sky objects are astronomical objects other than individual stars and solar system objects . The classification is used for the most part by amateur astronomers to denote visually observed faint naked eye and telescopic objects such as star clusters, nebulae and galaxies.-Origins and...
. The shallow sky is space within our solar system, plus our own atmosphere. Sky phenomena such as planetary conjunctions, solar eclipse
Solar eclipse
As seen from the Earth, a solar eclipse occurs when the Moon passes between the Sun and the Earth, and the Moon fully or partially blocks the Sun as viewed from a location on Earth. This can happen only during a new moon, when the Sun and the Moon are in conjunction as seen from Earth. At least...
s, lunar eclipse
Lunar eclipse
A lunar eclipse occurs when the Moon passes behind the Earth so that the Earth blocks the Sun's rays from striking the Moon. This can occur only when the Sun, Earth, and Moon are aligned exactly, or very closely so, with the Earth in the middle. Hence, a lunar eclipse can only occur the night of a...
s, as well as atmospheric phenomena like halo
Halo (optical phenomenon)
A halo from Greek ἅλως; also known as a nimbus, icebow or gloriole) is an optical phenomenon produced by ice crystals creating colored or white arcs and spots in the sky. Many are near the sun or moon but others are elsewhere and even in the opposite part of the sky...
es, rainbow
Rainbow
A rainbow is an optical and meteorological phenomenon that causes a spectrum of light to appear in the sky when the Sun shines on to droplets of moisture in the Earth's atmosphere. It takes the form of a multicoloured arc...
s, and noctilucent clouds, are all occurring in the shallow sky.
The Shallow Sky Bulletin (ISSN 0897-2532) was published by Stephen M. Smith from 1986 through 2000. Mr. Smith operated The Comet Rapid Announcement Service (CRAS) to disseminate notices about newly discovered bright comets, news about comets and daily positions (ephemerides) for observable comets. The common practice for publishing comet tables was to display positions at 10-day intervals. All of the comet position tables published in SSB were at 1-day intervals. During the 14-year run of SSB, CRAS subscribers were informed about all observable comets.
In the 2006 Apr. 13 issue of The Minor Planet Circulars/Minor Planets and Comets, published by The Minor Planet Center of the Smithsonian Astrophysical Observatory, Mr. Smith's work was honored by the naming of minor planet 9891 Stephensmith.