36.
NORTHSTAR COMPUTERIZED STAR LOCATOR SPECIFICATIONS
Dimensions
3.5 X 4.7 X 1.8
Weight
10 oz including 9V battery
Operating Temperature
10ºC à + 50ºC
Telescope Mounting
Altitude / Azimuth
Display
Dot Matrix LCD, 2x16 character Alphanumeric
Display Backlight
Blue-Green Electroluminescent, 5-brightness levels
Display Resolution
1m right ascension, 10’ declination 0.1º
Display Modes
ALIGN STAR, ALIGN EARTH, ALIGN OBJECT, TELESCOPE
EXPLORE, SKY TOUR, IDENTIFY
Database
20K Object Database
Complete Messier Catalog – 110 Objects
Complete NGC catalog – 7840 Objects
Complete IC Catalog – 5386 Objects
Selections from ESO Catalog – 1228
Selections from UGC catalog – 2340
Selection from small non-stellar catalogs – 2050 Objects
Selected star, double stars, variable stars, and interesting stars – 837
Objects
Alignment start list – 30 Stars
Best of lists – 150 objects
Planet, Moon, Mercury, Venus, Jupiter, Saturn, Uranus, Neptune, Pluto
Descriptions include magnitude, constellation, size / separation / type
Set-up
Two Methods:
Earth-Based Alignment, using time North and location
Fast two-star alignment, No input for latitude, longitude, date,
or time required
Coordinate Epoch
AD 2000
Sensing Method
Integral Encoders
Encoder Resolution
9216 steps, 0.02 resolution
Maximum Slew Rate
180º per second
Angle Representation
16 bits
Vector Representation
48 bits
Sidereal Clock Accuracy
0.01%
Power Requirements
5.1 to 14 Volts DC. 25mA, display fully-dimmed, typical. 35mA, display
maximum brightness, typical. Reverse Polarity Protected.
Battery Life
20 hours with display fully dimmed
Содержание Northstar 78-7830
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