Meade ETX-90EC Appendix B Helpful Charts, Latitude Chart for Major Cities of the World

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Appendix B: HELPFUL CHARTS

Latitude Chart for Major Cities of the World

To aid in the polar alignment procedure (see page 12), latitudes of major cities around the world are listed below. To determine the latitude of an observing site not listed on the chart, locate the city closest to your site. Then follow the procedure below:

Northern hemisphere observers (N): If the site is over 70 miles (110 km) north of the listed city, add one degree for every 70 miles. If the site is over 70 miles south of the listed city, subtract one degree per 70 miles.

Southern Hemisphere observers (S): If the site is over 70 miles north of the listed city, subtract one degree for every 70 miles. If the site is over 70 miles south of the listed city, add one degree per 70 miles.

UNITED STATES

 

 

City

State

Latitude

Albuquerque

New Mexico

35° N

Anchorage

Alaska

61° N

Atlanta

Georgia

34° N

Boston

Massachusetts

42° N

Chicago

Illinois

42° N

Cleveland

Ohio

41° N

Dallas

Texas

33° N

Denver

Colorado

40° N

Detroit

Michigan

42° N

Honolulu

Hawaii

21° N

Jackson

Mississippi

32° N

Kansas City

Missouri

39° N

Las Vegas

Nevada

36° N

Little Rock

Arkansas

35° N

Los Angeles

California

34° N

Miami

Florida

26° N

Milwaukee

Wisconsin

46° N

Nashville

Tennessee

36° N

New Orleans

Louisiana

30° N

New York

New York

41° N

Oklahoma City

Oklahoma

35° N

Philadelphia

Pennsylvania

40° N

Phoenix

Arizona

33° N

Portland

Oregon

46° N

Richmond

Virginia

37° N

Salt Lake City

Utah

41° N

San Antonio

Texas

29° N

San Diego

California

33° N

San Francisco

California

38° N

Seattle

Washington

47° N

Washington

District of Columbia

39° N

Wichita

Kansas

38° N

 

 

 

EUROPE

 

 

City

Country

Latitude

Amsterdam

Netherlands

52° N

Athens

Greece

38° N

Bern

Switzerland

47° N

Copenhagen

Denmark

56° N

Dublin

Ireland

53° N

Frankfurt

Germany

50° N

Glasgow

Scotland

56° N

Helsinki

Finland

60° N

Lisbon

Portugal

39° N

London

England

51° N

Madrid

Spain

40° N

Oslo

Norway

60° N

Paris

France

49° N

Rome

Italy

42° N

Stockholm

Sweden

59° N

Vienna

Austria

48° N

Warsaw

Poland

52° N

Star Locator

APPENDIX

Following is a list of bright stars with their R.A. and Dec.

B

coordinates, along with the Northern hemisphere season when

these stars are prominent in the night sky. This list will aid the

 

observer to find alignment stars at various times of the year.

 

For example, if it is a midsummer evening in the Northern

 

hemisphere, Deneb in the constellation Cygnus, would be an

 

excellent alignment star, while Betelgeuse could not be used

 

because it is in the winter constellation Orion and thus below

 

 

the horizon.

 

 

 

 

 

Season

Star Name

Constellation

R.A.

Dec.

 

 

 

Spring

Arcturus

Bootes

14h16m

19° 11"

 

 

 

Spring

Regulus

Leo

10h09m

11° 58"

 

 

 

 

 

 

Spring

Spica

Virgo

13h25m

-11° 10"

 

 

 

 

 

 

 

 

 

 

 

Summer

Vega

Lyra

18h37m

38° 47"

 

 

 

Summer

Deneb

Cygnus

20h41m

45° 17"

 

 

Summer

Altair

Aquilla

19h51m

08° 52"

 

 

 

Summer

Antares

Scorpius

16h30m

-26° 26"

 

 

 

 

 

 

 

 

 

 

 

 

Fall

Markab

Pegasus

23h05m

15° 12"

 

 

Fall

Fomalhaut

Pisces Austrinis 22h58m

-29° 38"

 

 

 

Fall

Mira

Cetus

02h19m

-02° 58"

 

 

 

 

 

 

 

 

 

 

 

Winter

Rigel

Orion

05h15m

-08° 12"

 

 

Winter

Betelgeuse

Orion

05h55m

07° 25"

 

 

 

Winter

Sirius

Canis Major

06h45m

-16° 43"

 

 

 

Winter

Aldebaran

Taurus

04h35m

16° 31"

 

 

 

 

 

 

 

 

 

 

SOUTH AMERICA

 

 

 

 

 

 

 

 

 

 

 

 

 

City

 

Country

 

Latitude

 

 

 

Asuncion

Paraguay

 

25° S

 

 

 

 

Brasilia

 

Brazil

 

24° S

 

 

 

Buenos Aires

Argentina

 

35° S

 

 

 

 

Montevideo

Uruguay

 

35° S

 

 

 

 

Santiago

 

Chili

 

34° S

 

 

 

 

 

 

 

 

 

 

 

 

 

ASIA

 

 

 

 

 

 

 

 

City

 

Country

 

Latitude

 

 

 

 

Beijing

 

China

 

40° N

 

 

 

 

Seoul

 

South Korea

 

37° N

 

 

 

 

Taipei

 

Taiwan

 

25° N

 

 

 

Tokyo

 

Japan

 

36° N

 

 

 

 

Victoria

 

Hong Kong

 

23° N

 

 

 

 

 

 

 

 

 

 

 

 

 

AFRICA

 

 

 

 

 

 

 

City

 

Country

 

Latitude

 

 

 

Cairo

 

Egypt

 

30° N

 

 

 

 

Cape Town

South Africa

 

34° S

 

 

 

Rabat

 

Morocco

 

34° N

 

 

 

Tunis

 

Tunisia

 

37° N

 

 

 

Windhoek

Namibia

 

23° S

 

 

 

 

 

 

 

 

 

 

 

 

AUSTRALIA

 

 

 

 

 

 

City

 

State

 

Latitude

 

 

 

Adelaide

 

South Australia

 

35° S

 

 

 

Brisbane

 

Queensland

 

27° S

 

 

 

 

Canberra

New South Wales

35° S

 

 

 

 

Alice Springs

Northern Territory

24° S

 

 

 

Hobart

 

Tasmania

 

43° S

 

 

 

Perth

 

Western Australia

32° S

 

 

 

 

Sydney

 

New South Wales

34° S

 

 

 

Melbourne

Victoria

 

38° S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Image 23
Contents Meade Instruments Corporation Eyepiece holder thumbscrew Eyepiece ViewfinderCONTENTSz3 Slew Speed GuideIntroduction Assembly InstructionsParts List Getting StartedComputer Control Panel Telescope FeaturesQuick Tips Telescope ControlsObserving with the Electronic Controller Getting STARTEDzFirst Observations Aligning the Viewfinder Focusing the ViewfinderUsing the Viewfinder ViewfinderTelescope Mountings Telescope FundamentalsChoosing an Eyepiece Understanding MagnificationSlew Speeds Terrestrial ObservingAstronomical Observing Sidereal RateModes of Operation Using the Mode ScrewsTelescope FUNDAMENTALSz Electronic ControllerLocating the Celestial Pole Polar Alignment ProcedureCelestial Coordinates Standard Tripod Leg ETX-125EC Latitude Balance Weight is recommended ifStandard Tripod Leg ETX-90EC High-Latitude Tripod Leg ETX-90ECPlanets Chapterz4 ObservingObjects in Space MoonFew tips on photography with both ETX models OBSERVINGzPhotography with Both ETX Models ETX-125EC Optional Accessories2X Barlow Power Astro Software/Cable Connector KitOptional Accessories #1244 and #1247 Electric Focusers OPTIONALz AccessoriesStorage and Transport MAINTENANCEz and ServicingGeneral Maintenance TroubleshootingMeade Customer Service Maintenance and ServicingSpecifications ETX-125EC Astro Telescope Specifications ETX-90EC Astro TelescopeLight Off Northern Hemisphere Polar Indicator Light KeyAppendix Atracking Motor Speed LightCity State Latitude Appendix B Helpful ChartsLatitude Chart for Major Cities of the World Star LocatorAppendix Precise Polar Alignment 24Appendix C Precise POLARz Alignment Setting CirclesSetting Circles Road Map to the Stars Appendix D ROADMAPzTO the StarsAppendix E YOU and the Universe Distances between the planetsMeade Limited Warranty Meade Instruments Corporation

ETX-90EC specifications

The Meade ETX-90EC is a compact, portable telescope that has garnered significant attention among amateur astronomers for its exceptional optical performance and user-friendly design. Launched as part of Meade's popular ETX series, this telescope blends advanced technology with accessibility, making it an ideal choice for both beginners and experienced users.

One of the standout features of the ETX-90EC is its Maksutov-Cassegrain optical design. This design incorporates a spherical primary mirror and a corrector lens which contributes to sharp images with minimal optical aberrations. The 90mm aperture allows users to observe a variety of celestial objects, from the craters on the Moon to distant galaxies, while maintaining a compact form factor. The telescope's focal length of 1250mm provides a substantial level of magnification, enabling users to enjoy detailed views of planets and other astronomical phenomena.

The ETX-90EC boasts a robust computerized system, powered by Meade's Audio Star technology. This feature not only assists users in locating over 30,000 celestial objects with just a few simple commands, but it also provides educational audio information about these objects, enhancing the observational experience. The telescope's GoTo capabilities allow it to automatically point to selected objects, transforming the stargazing process into an interactive and informative experience.

Another significant aspect of the ETX-90EC is its portability. Weighing in at under 10 pounds and featuring a foldable design, this telescope is easy to transport and set up in various locations. This makes it ideal for both backyard astronomy and travel to darker skies where light pollution is minimal.

The ETX-90EC also incorporates an electronic drive system that ensures smooth and precise tracking of celestial objects, which is invaluable for astrophotography enthusiasts. With optional accessories, users can attach cameras and other devices to capture stunning images of deep-sky phenomena.

Overall, the Meade ETX-90EC combines advanced optics, user-friendly technology, and portability, making it a versatile and powerful tool for exploring the night sky. Whether you are a novice looking to kickstart your journey into astronomy or a seasoned observer seeking a reliable companion, the ETX-90EC offers a unique blend of performance and convenience that appeals to a wide range of stargazers.