Tuesday 13th November Meeting – Astronomical Spectroscopy

The barcode of the Sun. A very long spectrum was chopped in small chunks and then displayed one on top of another.

At the Tauranga Observatory this week, we will be looking into Astronomical Spectroscopy.

Astronomical Spectroscopy is the analysis of light that determines temperature, composition and movement of stellar objects. It is one of astronomy’s most useful applications.

The Star-Spectroscope of the Lick Observatory in 1898. Designed by James Keeler and constructed by John Brashear. (Wikiwand)

The Star-Spectroscope of the Lick Observatory in 1898. Designed by James Keeler and constructed by John Brashear(Wikiwand)

Astronomical spectroscopy is the study of astronomy using the techniques of spectroscopy to measure the spectrum of electromagnetic radiation, including visible light and radio, which radiates from stars and other celestial objects. A stellar spectrum can reveal many properties of stars, such as their chemical composition, temperature, density, mass, distance, luminosity, and relative motion using Doppler shift measurements. Spectroscopy is also used to study the physical properties of many other types of celestial objects such as planetsnebulaegalaxies, and active galactic nuclei.  (Wikipedia)

Spectrograph montage of some stars

Spectrograph montage of some stars


Our telescopes will be operating. Worthwhile objects to view on Tuesday will be Saturn and the Moon. Jupiter will be very low in the west. Mercury and Mars will also be visible but nothing of note to see.

Successful telescope viewing assumes a cloudless sky.

Admission to our meetings –

A donation of $5 is requested

Members & children free.

Annual membership –

$30 each adult

or $40 each family

$10 students.

Fergusson Park Observatory, Tilby Drive, Matua, Tauranga

on Tuesday 13th November at 7.30pm.




Affliated With:


With funding support from:


Slooh Space Camera


NASA astronomy picture of the day