Bushnell 78-7880 80MM REFRACTOR Northstar Computerized Star Locator Specifications

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

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