galactographer
geotectonically
telescopically
pulsator
geomagnetics
optical astronomy
geothermobarometric
radio observation
astromathematical
astrometeorologist
geomagnetic
telescopical
teleotoscope
armillary sphere
stargazing
astro-
geomagnetically
armilla
geodesian
solargraphic
Mitchell
heliogeomagnetics
vulcanological
Maria Mitchell
altazimuth
geostatistician
telescopy
Harlow Shapley
geodetic
paleointensity
Shapley
Hubble
geotectonical
starcraft
lithium-drifted silicon detector
heliogeophysical
astroseismicity
spectromagnetograph
astroagricultural
geophysical
backstaff
heliometer
sidereal time
geomathematically
semidiameter
revolve