Appendix


Miscellaneous topics:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z


A

apparent equatorial coordinates

Apparent coordinates describe the position of a celestial object as precessed to the epoch and equinox of date (Now). Apparent positions of sun, moon and planets are further corrected for aberration, nutation and parallax (topocentric apparent equatorial coordinates).

E

equatorial coordinates

equatorial coordinates (right ascension and declination) given in Deep-Sky Planner may be referred to epoch and equinox of J2000, J2050 or Now (see apparent coordinates).

F

favorite location

A favorite location is the location that is selected automatically when a plan is opened and it specifies no location. You can select a different location for any plan after it is opened.

S

Setting up SkyFi

iOS: You can connect to SkyFi directly from your iPad or iPhone.

Android: You can connect to SkyFi III directly from your Android tablet or phone. You cannot connect to earlier version of SkyFi.

Spectral Types

Stars are classified by their spectral type in the Morgan-Keenan system. The following spectral types are available:

Spectral Type Description
W Wolf-Rayet (blue with strong emission lines)
O blue
B blue-white
A white
F yellow
G orange
K red-orange
M red
L cool, red/brown dwarf
T cool, red/brown dwarf
C red (carbon)
S red (zirconium oxide)
N red (carbon, obsolete)
R red (carbon, obsolete)

V

Variable Type Codes

Visibility Modeling



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