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5 6 14 50 V.1.11
*******************
** STAR 2000 **
*******************
A Freeware Subset of STAR BASE
by J.Andrzej Wrotniak
Distributed by Debonair Software
To view a page, click on its top-right corner.
To change volume or to rearrange pages,
click on the proper volume number.
1-1
WHAT IS STAR 2000?
Star 2000 is a freeware subset of Star Base - a
commercial program distributed by Debonair Soft-
ware (for our address - see Page 5-6).
While being a copyrighted program, Star 2000 can
be freely distrubuted as long as all the files,
including the documentation, stay together.
This is not just a demo: Star 2000 is a fully
functional program, just scaled down as compared
to the original. The limitations and differences
are listed on Page 4-2 of this help.
While some users of Star 2000 will have a need
for Star Base, many should be perfectly happy with
the free version. We hope you enjoy the program.
DATABASE WINDOWS
The database windows display the data on stars,
deep sky objects (DSO) and on the objects of the
Solar System (Sun, Moon and the planets).
They are opened, respectively, by clicking on
<List|List stars>, <List|List deep sky objects>
and <List|List Solar System>.
If a window is already open, it will be just
brought it to the top. If, however, the parameters
describing window contents have beeen changed, the
window will be updated to reflect the change (this
is also true about the map and HR plot windows).
The current top window can be closed by pressing
the Escape key.
1-3
DATABASE OPERATIONS - I
To move around a data window use the scroll bars
on the right, or the keyboard:
* Clr/Home - go to the top of database,
* ⇧ or ⇩ - page up or down, respectively,
* ⇦ or ⇨ - line up or down, respectively.
The other operations are enabled only in the DSO
and star (not in Solar System) window:
* Clicking on a data line will display the object
in the Full Data dialog.
* Double-clicking will tag an object (marking it
with a ">") or untag it again. The listing can
be then limited to tagged objects only. The
<List> menu has also "Untag all" options.
1-4
DATABASE OPERATIONS - II
* The last tagged or accessed star is displayed
in inverse video (see "Finding an Object").
* The coordinate system used in data windows can
be changed by clicking on <List|Set list frame>
* Selecting <List|Mapped only> will limit the
listing to objects drawn within the most recent
map - the change is effective immediately.
* The listing order can be changed by clicking
on <List|Sort ...> menu entries. Objects can be
sorted by two attributes, in increasing or de-
creasing order.
1-5
DATABASE SUBSET SELECTION
The <List|Select...> menu entries enable data-
base filters: only objects with attributes falling
within specified ranges will be listed.
A dialog will show up, asking for low and high
limits ofeach attribute. An empty field means no
filtering of that attribute from that side (top or
bottom). If both fields of an attribute are left
empty, the attribute will not be filtered at all.
You may also limit the selection to previously
tagged objects.
For stars, the spectral type limits may contain
just a single letter and a digit, e.g. F9.
1-6
OBJECT CO-ORDINATES
All objects can be displayed or mapped using one
of the following co-ordinate systems:
* Equatorial: declination (α) and right ascension
(δ) (the latter in angle or time units)
* Ecliptic: latitude (β) and longitude (ג)
* Galactic: latitude (b) and longitude (l)
* Horizon: azimuth (A) and elevation (H).
The horizon system uses parameters entered pre-
viously via <Options|Set horizon frame>.
The mode of right ascension display can be chan-
ged by clicking on <Options|Show RA as "hhmm">.
The system used in all textual output is chosen
from <List|Set list frame>.
2-1
STAR DATA
In addition to co-ordinates, the following data
is displayed in the star database window:
* Catalog number: YBS 0001 to YBS 9100, with a
"D" denoting multiple stars;
* Greek/Numeric and constellation name, as EpsUma
* Apparent (m) and absolute (M) magnitudes in the
visual wavelength range;
* The B-V color index;
* Distance (d) in light years;
* Harvard/Yerkes spectral/luminosity class, shown
abbreviated (the full version can be seen in
the Full Star Data dialog).
2-2
DEEP SKY OBJECT DATA
In addition to co-ordinates, the following data
is displayed in the DSO database window:
* The NGC catalog number;
* Object type (abbreviated to three letters):
Gxy - galaxy
Neb - nebula
PlN - planetary nebula
OCl - open cluster
GCl - globular cluster
NCl - cluster with nebular associacion
* Visual magnitude (approximate).
2-3
DATA ON SOLAR SYSTEM OBJECTS
The Solar System Window lists the co-ordinates
(in the current list frame), distances from Sun
(rS) and Earth (rE), phases (1.0 means full disc)
and visible magnitudes. Distances are in AU.
The co-ordinates of Moon are corrected for the
parallax.
This window, accessible via <List|List Solar
System>, does not respond to any mouse clicks
except scrolling.
2-4
THE MAP WINDOW
This window is opened from the menu by clicking
on <Map|Draw grid>, <Map|Draw stars>, <Map|Draw
deep sky objects> or <Map|Draw Solar System>.
If, when this happens, the window is already
open, then the specified class of objects will
be just added to the map, unless some parameters
describing the previous contents have been changed
(and "Map disabled" warning is being shown).
In the latter case the window will be redrawn,
including the grid (if not disabled from <Map|Set
drawing mode>) and the requested objects.
The number of the recently drawn objects is dis-
played as the window title.
2-5
DRAWING A MAP
The redrawing uses the most recently entered map
parameters. If these have not been changed, if the
object selection remains the same and if the given
class of objects is already mapped, the window
will be just brought to the top, without drawing.
If <Map|Selected only> is checked, then only the
objects selected by the last select command will
be included. The map will then need to be redrawn
- until then search and identification of stars
will be disabled.
<Map|Set drawing mode> changes some of the map
drawing defaults (grid on/off and spacing, black
margin, magnitudes shown or not).
2-6
MAP PARAMETERS - I
Click on <Map|Set parameters> to set:
* PROJECTION: defines how the celestrial sphere is
projected onto a plane.
* RANGE: from 60° to 180° across the map window,or
Full, with the whole map fitting into the window
* PROJECTION FRAME: coordinate system in which the
sky will be drawn.
* GRID FRAME: the reference system depicted by the
grid (can be different than than the above).
* PROJECTION CENTER: in any reference frame. Chan-
ging the frame will re-compute the values. The
last marker position can be chosen by clicking
on [Last Mark] button.
3-1
MAP PARAMETERS - II
[Round] will round the center coordinates to the
nearest whole numbers of grid steps (so it should
be used only after the map scale is selected).
The map is NOT redrawn after new parameters are
entered, but only when one of the <Map|Draw ...>
menu entries is used.
The window info line will initially display the
projection information, which also can be recalled
at any time by clicking on <Map|Show parameters>.
A double-click in the map will display the mouse
coordinates in the grid frame. The same happens
for a single click when no object is found under
the mouse (see the next page).
3-2
OBJECT IDENTIFICATION
Clicking on an object in the map (or in the HR
plot) will recall its brief data to the window's
Info Line. The object will be marked, and <Find|
Show again> will display its full data (except for
Solar System objects).
Only the first object (as currently sorted) at a
given pixel will be identified. The Solar System
is scanned before DSOs and stars, so if a star and
a planet overlap, the planet will be recognized.
Holding the Shift key when clicking on an object
will exclude Solar System from the search.
The identified star or DSO will be highlighted
in its database window (if present there).
3-3
FINDING AN OBJECT
The <Find|Find...> menu entries allow to search
for various objects, identified as follows:
* Solar System objects: by name (or its beginning,
like MA for Mars).
* DSOs: by catalog number.
* Stars: by number or by name. In the latter case
leaving one field (symbol or constellation) em-
pty will find the first star matching the other
field. The others can be found with <Find|Next
matching star>.
The found object will be highlighted in its data
base and marked on the map (if on top). It can be
redisplayed in full with <Find|Recall last...>
3-4
HERTZSPRUNG-RUSSEL DIAGRAM
This diagram is plotted as M vs. B-V. By default
M ranges from -10 to 10, and B-V - from -0.5 to 2.
If, however, M and/or B-V limits are set in the
listing (use <List|Select stars> to do it), then
these limits will be imposed on the H-R plot, too.
Stars included into the H-R plot can be limited
to those drawn in the last map, and to those lis-
ted in the database window; these limitations are
toggled with <Plot|Mapped only> and <Plot|Selected
only> menu entries, respectively.
Star identification and search are also possible
from the H-R diagram (see the preceding pages).
3-5
DEFINING THE HORIZON FRAME
Click on <Options|Set horizon frame> to set:
- Observer's co-ordinates as dd°mm' (minutes have
to be entered as two digits even if they are ze-
ros); negative values denote South and West.
- Observation date as yyyy/mm/dd (valid years:
1900..2100).
- Observation time (GMT) in Star 2000 is frozen at
0:00 (this affects the positions of Sun and
Moon, and, of course, limits the usefulness of
the horizon reference frame). This limitation is
lifted in the full version of Star Base.
Initially, the observer position is set to Washin-
gton, DC on 0:00 GMT, January 1, 2000.
3-6
MEMORY MANAGEMENT
If there is not enough memory for all the data,
the program will first load the planetary data,
then the stars and DSOs.
The last data file may be truncated to fit into
available memory, so it is important to know that
stars and DSOs are stored on disk starting from
the brightest.
4-1
FILE OPERATIONS
These operations are not available in Star 2000.
<File|Clear data> clears all stars and DSOs from
memory. Then new data can be read from disk, with
an option to load just a part of the data set.
The input filter is invoked from <File|Selective
read>. It allows to set magnitude limits for stars
and DSOs, and to select objects within a circular
region. Leaving a magnitude field empty means no
VM cut-off, while the fields for region radius and
center coordinates should be either all left empty
or all filled.
The <File|Read...> menu entries allow to load
stars and DSOs in any sequence.
4-2
STAR 2000 VERSUS STAR BASE
* Star 2000 lists 2000 brightest stars and 100
deep sky objects; Star Base raises these numbers
to 9096 (the full YBS Catalog) and 333; it also
has data on comets and accepts optional (larger)
data sets (see the previous page).
* Star Base provides higher map magnifications:
the smallest map range is 4° (not just 60°).
* The Universal Time in Star Base can be set to
any value (not being frozen to 0h00m). Time and
date can be modified freely (not just once for
each program run).
* Of course, Star Base comes with a printed user
manual and one update included in the $43 price.
4-3
CONSTELLATIONS: And - CrB
And Andromeda Cas Cassiopeia
Ant Antlia Cen Centaurus
Aps Apus Cep Cepheus
Aql Aquila Cet Cetus
Aqr Aquarius Cha Chamaeleon
Ara Ara Cir Circinus
Ari Aries CMa Canis Major
Aur Auriga CMi Canis Minor
Boo Bootes Cnc Cancer
Cae Caelum Col Columba
Cam Camelopadus Com Coma Berenices
Cap Capricornus CrA Corona Australis
Car Carina CrB Corona Borealis
4-4
CONSTELLATIONS: Crt - Lyr
Crt Crater Her Hercules
Cru Crux Hor Horologium
Crv Corvus Hya Hydra
CVn Canes Venatici Hyi Hydrus
Cyg Cygnus Ind Indus
Del Delphinus Lac Lacerta
Dor Dorado Leo Leo
Dra Draco Lep Lepus
Equ Equuleus Lib Libra
Eri Eridanus LMi Leo Minor
For Fornax Lup Lupus
Gem Gemini Lyn Lynx
Gru Grus Lyr Lyra
4-5
CONSTELLATIONS: Men - Tau
Men Mensa PsA Piscis Australis
Mic Microscopium Psc Pisces
Mon Monoceros Pup Puppis
Mus Musca Pyx Pyxis (Malus)
Nor Norma Ret Reticulum
Oct Octans Scl Sculptor
Oph Ophiuchus Sco Scorpius
Ori Orion Sct Scutum
Pav Pavo Ser Serpens
Peg Pegasus Sex Sextans
Per Perseus Sge Sagitta
Phe Phoenix Sgr Sagittarius
Pic Pictor Tau Taurus
4-6
CONSTELLATIONS: Tel - Vul
Tel Telescopium UMi Ursa Minor
TrA Triang.Australe Vel Vela
Tri Triangulum Vir Virgo
Tuc Tucana Vol Volans
UMa Ursa Major Vul Vulpecula
5-1
STAR NAMES: Acamar - Ankaa
Acamar TheEri Achernar AlpEri
Acrab BetSco Acrux AlpCru
Adhara EpsCMa Albireo BetCyg
Alcaid EtaUMa Alcyone EtaTau
Aldebaran AlpTau Alderamin AlpCep
Algeiba GamLeo Algenib GamPeg
Algol BetPer Alhena GamGem
Alioth EtaUma Almak GamAnd
Al Na'ir AlpGru Alnilam EpsOri
Alphard AlpHya Alphecca AlpCrB
Alpheratz AlpAnd Altair AlpAql
Aludra EtaCMa Ankaa AlpPhe
5-2
STAR NAMES: Antares - Hadar
Antares AlpSco Arcturus AlpBoo
Atria AlpTrA Avior EpsCar
Betelgeuse AlpOri Bellatrix GamOri
Canopus AlpCar Capella AlpAur
Caph BetCas Castor AlpGem
Cor Caroli AlpCVn Deneb AlpCyg
Denebola BetLeo Diphda BetCet
Dubhe AlpUma Dzuba DelSco
Elnath BetTau Eltanin GamDra
Enif EpsPeg Fomalhaut AlpPsA
Gacrux GamCru Gienah GamCrv
Gienar EpsCyg Hadar BetCen
5-3
STAR NAMES: Hamal - Ras-Alhague
Hamal AlpAri Izar EpsBoo
Kaus Austr. EpsSgr Kochab BetUma
Markab AlpPeg Menkalinan BetAur
Menkent TheCen Merak BetUMa
Miaplacidus BetCar Mimosa BetCru
Mirach BetAnd Mirfak AlpPer
Mirzam BetCMa Mizar ZetUMa
Muhlifain GamCen Naos ZetPup
Nunki DelSgr Peacock AlpPav
Phact AlpCol Phecda GamUMa
Polaris AlpUmi Pollux BetGem
Procyon AlpCMa Ras-Alhague AlpOph
5-4
STAR NAMES: Regulus - Zubenelgenubi
Regulus AlpLeo Rigel AlpOri
Rigil Kent AlpCen Ruchbach DelCas
Sabik EtaOph Sadir GamCyg
Scheat BetPeg Schedar AlpCas
Scutulum IotCar Shaula LamSco
Sheratan BetAri Sirius AlpCMa
Spica AlpVir Suhail LamVel
Vega AlpLyr Wezen DelCMa
Zosma DelLeo Zubenelgenubi AlpLib
5-5
SOME NAMES OF BRIGHTER DEEP SKY OBJECTS
2632 Praesepe 598 M33,Triangulum Gxy.
224 M31,Gt.Andromeda Neb. 6705 Wild Duck Cluster
5139 Omega Centauri 6523 Hourglass Nebula
6523 Lagoon Nebula 6205 Gt.Hercules Clust.
2264 Christmas Tree Clust. 6611 Eagle Nebula
104 47 Tucanae 6618 Omega Nebula
1976 Great Orion Nebula 6514 Trifid Nebula
4755 Jewel Box 7009 Saturn Nebula
6405 Butterfly Cluster 253 Sculptor Galaxy
5-6
DEBONAIR SOFTWARE
STAR BASE can be ordered directly from
Debonair Software
P.O.Box 521166
Salt Lake City, UT 84152-1166
(Yes, we are the people who brought you El Cal!).
The price of $43 (checks or money orders only)
includes one update and shipping within the con-
tinental U.S. (others please add $5 extra).
Technical correspondence on Star 2000 (problems,
questions, enhancement suggestions etc.) can be
also sent electronically to the author:
CompuServe: 70611,2552
GEnie: J.WROTNIAK