Photometry : 16
Qatar 2b
Exoplanet
Transit |
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Exoplanet transit Qatar 2b in Virgo
Plot of brightness of star Qatar 2 as planet (b) crosses its face
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V1828 Aql |
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V1828 Aquilae, an interesting white dwarf and red dwarf eclipsing binary system.
The white dwarf heats the facing side of the red dwarf producing a distorted light curve.
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Recent
Photometry |
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Photometry of Eclipsing Binary AC Bootis - completed light curve
Light curves using B, V and R photometric filters
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Recent
Photometry |
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Photometry of Eclipsing Binaries : Results to 15-Feb-18 : to be continued …
Light curves using R, G and B filters
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Triton
occults
star |
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Occultation of star UCAC4 410-143659 by Neptune's moon Triton
Star mag 12.66(V), Triton mag 13.46
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RT
Andromedae |
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Photometry of Eclipsing Binary RT Andromedae
Light curve using R, G and B filters
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RT
Andromedae
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Blue minus Red magnitudes during light curve
Shows change in overall colour during eclipses
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UV
Leonis
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Photometry of Eclipsing Binary UV Leonis
Secondaty minimum
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SW
Andromedae
Page 2 |
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Photometry of SW Andromedae - Light Curve
Rise to maximum of RR Lyrae type variable SW Andromedae
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Nova Delphini
2013
Page 1 |
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Photometry of Nova Delphini 2013 - 1 Discovery
Discovery and position
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Nova Delphini
2013
Page 2 |
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Photometry of Nova Delphini 2013 - 2 Images
Left - Blow up of nova area of picture taken during Perseid meteor watch
Right - First image of the same region showing the nova (brightest object)
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Nova Delphini
2013
Page 3 |
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Photometry of Nova Delphini 2013 - 3 Measurement
Any slice of the image can be selected. A plot of light intensity across the slice is produced.
The high peak on the left is the nova.
To a good approximation the peak height is proportional to the magnitude of the object
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Nova Delphini
2013
Page 4 |
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Photometry of Nova Delphini 2013 - 4 Analysis using spreadsheet
The same process is used to measure the peak heights of comparison stars of known magnitude
A plot of peak height against magnitude gives the best fit straight line and error estimate
The nova peak height can then be used to predict its magnitude
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Nova Delphini
2013
Page 5 |
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Photometry of Nova Delphini 2013 - 5 Light Curve
Analysis of stacked multiple images on every clear night available gives a light curve plot
The quality of seeing gives variation in error estimates of the magnitude
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SW
Andromedae
Page 1 |
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Photometry of SW Andromedae
SW And image and AAVSO chart
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Use arrow for gallery index.
