Pocket Stars SP
is a high accuracy star chart and guide to the heavens for Windows Mobile Smartphones.
Based on the award winning version for Pocket PC's, Pocket Stars Smartphone combines
rich capabilities with simple and quick navigation.
- 2D and 3D views of the sky from any location on earth or positioned anywhere in
the solar system, for any date and time.
- 9110 stars from the Brightstar catalog.
- Solar system bodies.
- Messier and Caldwell Objects
- Display of orbital paths for inner solar system bodies showing daily positions for
one year centered on current date.
- Manual or automatic control of star magnitudes. Simple control over which objects
to display. Overall, these features give great control of visual clutter given the
limited screen real estate on the Smartphone.
- Black, white, and red star chart colors for normal, bright, and night viewing conditions,
- Chart can be rotated and also flipped along the North - South axis. This allows
the either overhead (East and West reversed) or non-overhead (East and West normal)
- Polar grid with hour angle and declination labels.
- Zenith grid.
- Search and scroll to constellation, body, star, or Messier / Caldwell objects.
- User location set by city selection, or by entering Latitude and Longitude.
- Star data is from the Bright Star Catalog (5th Revised Edition), comprising the
9110 brightest stars using J2000 equatorial positions and the International Celestial
Reference Frame (ICRF). Corrections are performed for proper motions and parallax.
- Planet ephemeris data from Jet Propulsion Laboratory using the DE405 database. DE405
is JPL's latest planetary ephemeris with correction for both nutations and librations.
DE405 uses the J2000 International Celestial Reference Frame (ICRF). The portion
of this database provided with Pocket Stars covers the years CE 2000 to CE 2020.
Other ephemeris date ranges are available for download here.
- Core positional calculation routines based on "Novas" (Naval Observatory
Vector Astrometry Subroutines Version 2.0.1).
- Rise, set, and meridian times for all solar system bodies.
- Lunar Phase calendar and animation showing the relative positions of the earth,
moon, and sun.
- Images and physical data for planets, moon and sun. Optional display of all Messier
and Caldwell objects through separate free download.
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