Martin Crow Crayford Manor House Astronomical Society Charts and the Sky.

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Presentation transcript:

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:

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

Martin Crow

The Planishere

Martin Crow Crayford Manor House Astronomical Society

Planisphere practical What 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

AltitudeDateTop DecTop R.A.Transit +51° 00' 10"25 Jan ° 26' 58"08h 17m 07.4s01:02:47 +50° 41' 24"01 Feb ° 40' 39"08h 09m 41.2s00:27:52 +49° 13' 18"08 Feb ° 56' 10"08h 03m 06.3s23:49:02 +46° 49' 54"15 Feb ° 11' 59"07h 57m 47.4s23:16:25 +43° 48' 17"22 Feb ° 26' 59"07h 53m 59.7s22:45:20 +40° 23' 39"01 Mar ° 40' 15"07h 51m 49.8s22:15:53 +36° 47' 29"08 Mar ° 51' 03"07h 51m 18.7s21:48:03 +33° 07' 27"15 Mar ° 58' 48"07h 52m 23.0s21:21:46 +29° 28' 07"22 Mar ° 03' 07"07h 54m 54.7s20:56:56 +25° 51' 58"29 Mar ° 03' 46"07h 58m 44.5s20:33:22 Ephemeris of 7 Iris

8h9h 7h

Planet visibility

Planetarium software Martin Crow Crayford Manor House Astronomical Society