Zon Mosaic Pro5 User's Guide Page 92

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92 Starry Night User’s Guide
Name: The name of the selected object.
Pronounce: Hear the correct
pronunciation of the objects name. See
Pronunciation Guide
” on page 97 for
more information.
Catalogue number: The object’s number in
the appropriate astronomical catalogue (if
applicable).
Object Type: The object’s celestial type
(star, galaxy, planet, etc.).
Bayer: For stars only, this field gives the
stars Bayer catalogue letter, if any. The
Bayer letter is from the Greek alphabet.
The brightest star in a given constellation
is usually named Alpha (the first letter in
the Greek alphabet), the second brightest
is named Beta, and so on. Only relatively
bright stars have Bayer letters.
Flamsteed/Other: For stars only, this gives
the stars Flamsteed number, if any. The
Flamsteed system orders stars not by
brightness, but by their position relative to
the western boundary of the constellation
they are in. The star closest to the western
edge is labelled 1. Only relatively bright
stars have Flamsteed numbers.
HIP Number/TYC Number: The
HIPPARCOS and Tycho project was a
study done by the European Space Agency
to determine the distances to nearby stars.
The Tycho-2 catalogue included about two
million stars and the HIPPARCOS
catalogue about 100 000. For stars only,
these fields give the catalogue numbers of
the star in question. Not every star has a
HIPPARCOS catalogue number.
More Options: Clicking this button will
bring up the objects contextual menu of
options.
Extended Info: Takes you to LiveSky and
provides a list of web resources containing
more information about this object.
Rise/Transit/Set: The time at which the
object rises above the horizon, transits,
and sets below the horizon, as viewed on
the date and from the location of the active
Starry Night window. An object’s transit
time is the time at which it is highest in the
sky. At its transit time, an object will be
due south in the sky (if you are viewing
from the Northern Hemisphere), or due
north (if you are viewing from the
Southern Hemisphere).
Tip: Clicking on the rise/set/transit
buttons will change the time in Starry
Night to reflect the rise/set/transit times
for the object.
Description
A text description of the object. All well-
known objects will have unique text
descriptions, with historical information,
observing tips, and other cool facts about
the object. For non-descript objects such
as dim stars, the description will be a
generic description for the object type (i.e.
red giant star).
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