BASICS ASTRONOMY 1.2

Martin Crow Crayford Manor House Astronomical Society

Charts and the Sky

Last week

Basic glossary of terms

Finding North

The mark 1 eye ball

Binoculars

Have a look at our website: www.cmhas.wikispaces.com

This week

Using the Planisphere and a bit of practical.

Coordinate systems – locating objects.

The Constellations through the year.

Finding things on charts.

Martin Crow Crayford Manor House Astronomical Society

The Sky tonight

The Sky tonight

Martin Crow

The Planishere

Martin Crow Crayford Manor House Astronomical Society

Planisphere practicalWhat do you notice about the stars/ constellations below the pole star when the front disc is rotated?

What constellation is setting and what constellation is rising at 8 o’clock on October 24th and what constellation is just past the Zenith?

What time does Jupiter rise tonight?

What time did the Sun set tonight?

Constellations through the year

Winter

Winter sky looking North

Orion

Taurus

Gemini

Auriga

Spring

Summer

Autumn

Coordinate systems

Alt Az or Horizontal coordinates.

Stands for Altitude and Azimuth

Martin Crow Crayford Manor House Astronomical Society

Skymap Pro

Coordinate systems

RA and Dec

Right Ascension and Declination

Coordinate systems

Right ascension zero is taken from the Vernal equinox also called the first point in Aries and is measures in hours.

Coordinate systems

Other coordinate systems are:

Ecliptic coordinates.

Galactic coordinates.

Heliocentric coordinates.

Using charts

Altitude Date Top Dec Top R.A. Transit+51° 00' 10" 25 Jan 2011 +12° 26' 58" 08h 17m 07.4s 01:02:47

+50° 41' 24" 01 Feb 2011 +12° 40' 39" 08h 09m 41.2s 00:27:52

+49° 13' 18" 08 Feb 2011 +12° 56' 10" 08h 03m 06.3s 23:49:02

+46° 49' 54" 15 Feb 2011 +13° 11' 59" 07h 57m 47.4s 23:16:25

+43° 48' 17" 22 Feb 2011 +13° 26' 59" 07h 53m 59.7s 22:45:20

+40° 23' 39" 01 Mar 2011 +13° 40' 15" 07h 51m 49.8s 22:15:53

+36° 47' 29" 08 Mar 2011 +13° 51' 03" 07h 51m 18.7s 21:48:03

+33° 07' 27" 15 Mar 2011 +13° 58' 48" 07h 52m 23.0s 21:21:46

+29° 28' 07" 22 Mar 2011 +14° 03' 07" 07h 54m 54.7s 20:56:56

+25° 51' 58" 29 Mar 2011 +14° 03' 46" 07h 58m 44.5s 20:33:22

Ephemeris of 7 Iris

8h9h 7h

Planet visibility

Planetarium software

Martin Crow Crayford Manor House Astronomical Society

Martin Crow Crayford Manor House Astronomical Society