RTGUI: Real-Time Interactive Windows Software for Astronomical
Observers Ver. 9.2 (Sept. 18, 2011): New Feature: Trace Object - useful for Alt/Azimuth telescopes.
see What's new.
Easily Download Selected Comet and Asteroid Positions Via the
Internet. Quickly find Planets, Messier Objects, Caldwell Objects, NGC/IC
Objects, Named Stars, Carbon Stars, Quasars, and > 2,500 Double Stars, by
Constellation, Altitude, Magnitude, etc..
Fully-Updated NGC and IC data - errors in
standard catalogs fixed.
Read hand-held GPS
Devices or Celestron and Meade GPS Telescopes to set
highly-accurate Location and System Time. Read object position from most
Celestron and Meade Goto scopes. Upload data from GPS devices to Meade Goto
Locate Sun,Moon, and Planets, with
excellent accuracy. Download Comet and Asteroid positions via the internet,
for easy Goto, Skycharts, etc.
catalogs into rtgui directory)
Messier Marathon Catalog(3k download, 11k unzipped. 110 entries).
Once a year, in mid to late March, is it possible for mid-northern observers to
see all 110 Messier objects in a single night's marathon observing session. This
catalog contains all of the Messier objects, in the order that you need to
observe them (whatever sets the soonest is "next"!). There is also a separate
catalog for southern observers, with the visible M-objects ordered for their
search. Just search for "M", and keep hitting "next"! (It's probably also a good
idea to print out the list, for your location & time.)
Washington Double Star Catalog 1.8 Meg Download, 8.4 Meg unzipped. Revised
Jan. 31, 2006 for compatibility with new Search Wizard. Includes constellation
names for every object. Complete WDS 2001 catalog, 84,468 entries. Contains
virtually every visual double star known. Don't waste those moonlit nights -
observe thousands of double stars! In addition to the Constellation Names, I
have cross-indexed the WDS with the HR and PPM catalogs, picking up Bayer (Gam
Vir) and Flamsteed (61 Cyg) designations, as well as SAO numbers, where
available. (Entries in the original WDS catalog contain only the WDS
designation, and the DM numbers, so it's hardly user-friendly.) Separation and
magnitude of companion are given, where available. I know of no other catalog of
double stars so complete yet easy to search. For more information about this
catalog, see http://ad.usno.navy.mil/wds.
Download PPM.ZIP Positions and
Proper Motions Star Catalog in .RTG format ( 9.4 Meg download, 46.7 Meg
unzipped. 468,861 entries). Contains all SAO catalog objects, also has PPM
numbers, & HD numbers, now cross-referenced with data in the Bright Star
catalog. Every entry now has a constellation name. ( For information on the PPM,
). Catalog is in reverse order, starting with north polar objects
and moving southward. This also places the smaller SAO and PPM numbers at the
start rather than the end.