beautypg.com

Accessing the object databases, Object library planet legend – Meade Instruments 1697 Computer Drive System For LXD 650 and LXD 750 Mounts - Part 2 User Manual

Page 4

background image

-

23

-

APPENDIX C: #1697 CDS 64,359-Object Library

1. Overview: 64,359 Object Library

The CDS 64,359-Object Library is a collection of the most studied and fantastic objects in the sky.

This library consists of the following object databases:

110 Messier objects.

351 bright stars, interesting double stars and Sigma Octans (the southern star) in the star .

15,928 SAO (Smithsonian Astrophysical Observatory) Catalog of Stars: all stars brighter than 7th
magnitude.

21,815 GCVS (General Catalog of Variable Stars) objects: complete catalog.

7,840 NGC (New General Catalog*) objects: complete catalog.

5,386 IC (Index Catalog*) objects: complete catalog.

12,921 UGC (Uppsala General Catalog) galaxies: complete catalog.

8 Major Planets and the Moon.

2. Accessing the Object Databases

A. Messier Catalog:

1.

Press the M key.

2.

Enter the number of the desired Messier object and press ENTER.

3.

Object information will appear on the display.

B. Planets and Moon:

The CDS calculates the orbital positions of the Moon and the eight major planets for the current calendar
date. To access the Moon or a planet, press the STAR key and enter the appropriate number as
indicated below:

* NGC 2000 and IC databases are copyrighted by Sky Publishing Corporation and used with their permission.

OBJECT LIBRARY PLANET LEGEND

PLANET MERCURY

VENUS

MOON

MARS

JUPITER

SATURN

URANUS

NEPTUNE

PLUTO

STAR #

901

902

903

904

905

906

907

908

909

C. Star, SAO and GCVS Catalogs:

1.

Press the STAR key on the Hand Controller, then press ENTER.

2.

Use the PREV and NEXT keys to cycle through the following options:

NAME

Alphebetical listing of 33 bright alignment stars.

STAR

250 brightest stars, 100 interesting double stars and Sigma Octans (the southern hemisphere).
The list of stars begins on page 27.

SAO

The Smithsonian Astrophysical Observatory catalog of stars (all stars brighter than 7th
magnitude).

GCVS

The General Catalog of Variable Stars (complete catalog). Variable stars from the GCVS are
entered using a six digit number. The first two digits, refer to the constellation where the
variable star is located and is listed in the table below. The next four digits are assigned
sequentially within each constellation according to the standard sequence of variable-star
designations (R, S, ...). Therefore, the first variable star in the constellation of Virgo would be
entered as: 860001.

3.

Press Enter when the desired catalog is selected. An arrow will appear to the right of the selected

catalog.

4.

Press MODE to activate the curser. Using the keypad, enter the number of the desired selection

into the Hand Controler and press ENTER. The object information of the selected object then appears
on the screen.