Linked from

The 58 pages that link to Astrometry, each with the reason it gives.

• Radial velocity methodCompared with: It detects a star’s sky-plane wobble, complementary to the radial motion measured here.

• PhotometryCompared with: It measures where sources are, while photometry measures how bright they appear.

• Transit methodCompared with: It searches for a planet’s gravitational pull through sideways stellar motion, unlike transit photometry.

• Light curveCompared with: Astrometry tracks positional changes, whereas a light curve tracks brightness changes.

• Radial velocityCompared with: Astrometry tracks positional motion, complementing spectroscopic radial-velocity measurements.

• Direct imaging of exoplanetsCompared with: Astrometric detections infer a planet from the star’s positional wobble, not a planetary image.

• Doppler spectroscopyCompared with: Astrometry detects transverse motion, complementary to Doppler spectroscopy's line-of-sight motion.

• Direct imagingCompared with: Astrometry infers companions from a star’s motion instead of imaging their emitted light.

• Planetary transitCompared with: Astrometry detects a planet through the star’s sky-plane wobble rather than a brightness dip.

• Transit timing variationCompared with: Astrometry detects a planet through a star’s sky-plane motion, not altered transit intervals.