• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
  9. 9
  10. 10
  11. 11
  12. 12

GCSE Astronomy controlled assessment - B4 Constellation Photography

Extracts from this document...


Francis Glynn-Matthews 9135 GCSE Astronomy Controlled Assessment: B4 ? Constellation Photography Design For my coursework I have chosen to attempt photography of three different constellations in the night sky. I will go out on three separate dates to take photos then select the best photographs to use for the analysis. I will then aim to identify colours and magnitudes of my photographed stars using comparisons with reference stars for which I have collected known magnitudes from official sources. Explanation of used Astronomical terms Constellation ? A group of stars seen from Earth as forming some sort of recognisable pattern in the sky. These are usually given names due to their resemblance to mythological creatures. Asterism ? a prominent pattern of stars in the sky; usually part of a bigger constellation. Reference star ? a star with a known magnitude used to compare against others to determine estimates for apparent magnitudes. Star chart ? a chart used to show the position of stars in the sky when viewed from a particular point on Earth at a particular time. Magnitude ? the brightness of a star. For each whole number above 0, the brightness of the star decreases by x2.5. Meaning the magnitude rating would be 1=2.5, 2=6.25, 3=16 etc. Colour ? the surface colour of a star which depends on its temperature and chemical composition. ...read more.


I have also checked for visibility levels using a weather forecast4. Date Moon phase Moon illumination Visibility Observation possibility Saturday 26th Waning crescent 9.8% Moderate No Sun 27th Waning crescent 4.0% Good/Very good Yes Monday 28th Waning crescent 0.7% Good Yes Tuesday 29th New moon 0.1% Good Yes Wednesday 1st Waxing crescent 5.9% Moderate No Thursday 2nd Waxing crescent 11.8% Moderate No Friday 3rd Waxing crescent 19.2% Good Yes After evaluating the data I have acquired, I have chosen to perform the observations on 27th,28th and 29th of April as these dates include or are near to when the Moon in new. These are also the dates where the Moon is least illuminated, which is ideal for observation as a highly illuminated moon could have adverse effects on my photography due to skyglow. Constellations This is a list of constellations I could potentially observe for my investigation, taken from the star chart: * Ursa Minor * Ursa Major * Cassiopeia * Auriga * Leo * Cepheus * Boötes After assessing all the possible constellations I can photograph, I have chosen three: Ursa Major I have chosen to observe this constellation mainly because of its asterism known as the Plough or ‘The big dipper’. This asterism is useful in locating other constellations or stars; Dubhe and Merak form a pointer towards Polaris (The North Star) ...read more.


Another method of improvement would be to use a better camera with better/more suited setting to clearly photograph the night sky. A better camera would have allowed me to experiment with a wider range of setting such as ISO, Aperture, shutter speed and exposure, thus allowing me to take optimum photographs of each of the constellations. Taking more photographs on a wider range of dates would have also given me a better chance of getting better photographs. The higher the amount of repeats the more accurate, precise and reliable your readings become. Instead of going out on three dates that were consecutive days, I could have gone out on days that were reasonably spread out which would give me a more accurate result through the calculation of an average. Many of the stars I observed were variable stars meaning their magnitude fluctuates due to either swelling or shrinking of the star or the eclipsing of its light due to it being locked in orbit with another star. Therefore, more readings and an average would have given me a more valid result. Despite the few inaccurate readings and possible improvements to my observation, I would say that the observation was a success and was designed/performed well with the resources I have available to me. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Miscellaneous section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Miscellaneous essays

  1. GCSE Astronomy Controlled Assessment B4: Constellation Photography

    The stars in a constellation are given names with Greek letter in order of decreasing brightness: this is the Bayer system introduced by Johann Bayer in 1603. Most stars in a constellation do not have any astronomical significance to one another; they only appear to be next to each other

  2. Water Pollution and Case Studies

    The cadmium and other heavy metals accumulated at the bottom of the river and in the water of the river. This water was then used to irrigate the rice fields. The rice absorbed all heavy metals, especially the cadmium. The cadmium accumulated in the people eating contaminated rice.

  1. Child development observation 1

    She did this steadily and steered it well using two hands on the handle. She was able to push it on the grass as well as on the concrete. It got stuck once in a small dip, but she picked it up with two hands and carried it to the concrete and set it down with ease.

  2. Day of the Triffids analysis

    Wyndham conveys how humans suddenly become vulnerable and weak when they are faced by a superior form. In this case, human's had an advantage over the Triffids only till they had their sight, but "take away our vision, and the superiority is gone.

  1. GCSE Maths Statistics Coursework

    is very positive correlation showing the children's choices where much the same. Yr7G Yr11G Genre Frequency Rank Genre Frequency Rank Difference D2 Cartoons 2 3.5 Cartoons 0 6.3 2.8 7.84 Reality TV 1 5 Reality TV 1 2.25 2.75 7.5625 Soaps 5 1 Soaps 4 1 0 0 Educational 0

  2. P.e Self Analysis

    As long as each fitness component has been honed to suit the player and the position they play in the game, it will enhance their performance to make it successful. Rules and Regulations. Games are played between 2 teams of between 6 and 15 players.


    People's Republic of China, th? overall prevalence rate of people with disabilities was estimated to 4.9% (McGuigan et al, 1995, pp 527). Thus, China has more individuals with disabilities than any other country in th? world. According to these figures, th? prevalence of intellectu?l disability in th?

  2. Obesity. In this project I hope to aim to locate the function of the ...

    Whizz with a hand blender or in a blender until smooth. Reheat in a clean pan, stir in the cream or cr�me Fra�he, heat through and serve. Interview with a school dinner lady I interviewed a dinner lady at out school canteen.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work