10
Display Modes
SETUP function, alignment mode
that uses short star list RA-DEC
function, right ascension and
declination
CATALOG, complete database of
celestial objects from 3 sources
FIND displays steering coordinates
to object
TIMER elapsed time stopwatch
SYNC alignment mode that uses
complete catalog
INSTALL telescope installation
ENC TEST shows encoder angles
Database
Complete list of 110 Messier objects.
Alignment star list 30 bright
navigational stars.
User catalog of 27 objects
225 interesting stars and double
stars.
NGC catalog of 1,785
IC catalog (selections) include: great
galaxies and galaxy clusters,
planetary nebula, globular clusters,
open clusters, interesting stars, plus
more. Descriptions based on
amateur telescope observations.
Include magnitude, size/separation/
type, constellation, name.
Equatorial Setup
Star based on 1 or 2 star sightings,
polar alignment not required.
Latitude, longitude, date, and time
not required.
Alt/Azimuth Setup
Requires 2 star alignment and
orthogonal positioning of encoder
axes. No input for latitude, longitude,
date, or time required.
User Catalog
Retained without electrical power in
non-volatile memory.
Customization
Retained without electrical power in
non-volatile memory.
Coordinate Epoch
AD 2000
Sensing Method
Optical encoders, quadrature
Encoder Resolution Standard resolution 2160-step, 0.17°
encoders high resolution 4000 step,
0.09° encoders
Sampling Rate
0.4 millisecond
Maximum Slew Rate 100° per second (high resolution 1:1
ratio)
Encoder gearing
any ratio between 1:1 to 1:4
Angle representation 16 bits
Vector representation 48 bits
Sidereal Clock accuracy
0.05 %
Stopwatch accuracy 0.05 %
Power Requirements 5.1 to 12 volts DC
16 mA, display fully dimmed, typical
47 mA, display maximum brightness,
typical
Reverse polarity protected
Battery Recommended
Duracell, 9 volt alkaline 1604 battery,
may be operated on external 12V
DC power supply
Battery Life
35 hours with display fully dimmed
Encoder Dimensional Drawings:
Standard (2160-step) encoder
High Resolution (4000-step) encoder
5. catalog listings
Messier Catalog Database
Cat# Name
RA h m.m Dec ° ' Size Mag Const Description
M001 Crab Nebula
05 34.5 +22 01 6
8.4 Tau nebula
M002
21 33.5 -00 49 12.9 6.5 Aqr globular cluster highly resolved
M003
13 42.2 +28 23 16.2 6.4 CVn globular cluster highly resolved
M004
16 23.6 -26 32 26.3 5.9 Sco globular cluster highly resolved
M005
15 18.6 +02 05 17.4 5.8 Ser globular cluster highly resolved
M006 Butterfly Cluster
17 40.1 -32 13 15
4.2 Sco open cluster rich
M007
17 53.9 -34 49 80
3.3 Sco open cluster bright scattered
M008 Lagoon Nebula
18 03.8
-24 23 90
5.8 Sgr nebula with dust and cluster
M009
17 19.2 -18 31 9.3 7.9 Oph globular cluster mottle
M010
16 57.1 -04 06 15.1 6.6 Oph globular cluster highly resolved
M011 Wild Duck Cluster
18 51.1 -06 16 14
5.8 Sct open cluster dense
M012
16 47.2 -01 57 14.5 6.6 Oph globular cluster highly resolved
M013 Great Hercules Cluster 16 41.7 +36 28 16.6 5.9 Her globular cluster highly resolved
M014
17 37.6 -03 15 11.7 7.6 Oph globular cluster
M015
21 30.0 +12 10 12.3 6.4 Peg globular cluster highly resolved
M016 Eagle Nebula
18 18.8 -13 47 35
6.0 Ser nebula with dust and cluster
M017 Swan Nebula
18 20.8 -16 11 46
6.0 Sgr nebula
M018
18 19.9 -17 08 9
6.9 Sgr open cluster bright scattered
M019
17 02.6 -26 16 13.5 7.2 Oph globular cluster
M020 Trifid Nebula
18 02.3 -23 02 29
6.3 Sgr nebula with dust
M021
18 04.6 -22 30 13
5.9 Sgr open cluster rich
M022
18 36.4 -23 54 24
5.1 Sgr globular cluster highly resolved
M023
17 56.8 -19 01 27
5.5 Sgr open cluster dense
M024
18 18.4 -18 25 5
11p Sgr open cluster dense
M025
18 31.6 -19 15 32
4.6 Sgr open cluster bright scattered
M026
18 45.2 -09 24 15
8.0 Sct open cluster rich
M027 Dumbbell Nebula
19 59.6 +22 43 480" 7.4 Vul planetary nebula irregular
M028
18 24.5 -24 52 11.2 6.9 Sgr globular cluster highly resolved
M029
20 23.9 +38 32 7
6.6 Cyg open cluster bright scattered
M030
21 40.4 -23 11 11
7.5 Cap globular cluster highly resolved
M031 Great Andromeda Galaxy 00 42.7 +41 16 178 3.5 And very elongated galaxy dusty
with bright core
M032
00 42.7 +40 52 7.6 8.2 And round galaxy with bright core
M033 Pinwheel Galaxy
01 33.9 +30 39 62
5.7 Tri
spiral galaxy structure with
bright knots
M034
02 42.0 +42 47 35
5.2 Per open cluster rich
M035
06 08.9 +24 20 28
5.1 Gem open cluster rich
M036
05 36.1 +34 08 12
6.0 Aur open cluster rich
M037
05 52.4 +32 33 24
5.6 Aur open cluster dense
M038
05 28.7 +35 50 21
6.4 Aur open cluster rich
