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astronomy

Across
The result of which the Doppler effect is only sensitive to motion in the line of sight either towards or away from the observer which results in this word.
Particles that travel through space but don’t penetrate our atmosphere. They crash into molecules in the upper atmosphere.
since blue light has a shorter wavelength in the optical spectrum, astronomers call it a ...
Telescope that uses a mirror
Contains seven different electromagnetic waves
the shift in the spectrum due to the relative motion of the source with respect to the observer
means that light is absorbed and is not able to transmit through the atmosphere, thus we cannot measure that wavelength from the ground.
The number of cycles (of wavelengths) per second
ripples in the fabric of space-time that propagate like a wave
Down
Records both faint and bright objects in a single exposure. they are also much more efficient at collecting light
the ability to make the image larger
the longer wavelength in the optical spectrum
Proportional to the area of the lens or mirror that gathers the light
Telescope that uses a lens
Measured by its ability to differentiate two points in an object
the study of electromagnetic radiation that is spread out according to its wavelength by a prism or a diffraction grating.
Primary mirror or lens
Part of a telescope, brings in light
ghost particles that can often pass through Earth without interacting with any of its atoms
Basic unit that makes up all light