| Answer | Crossword Clue |
|---|---|
| VEGA | Second star to be photographed |
| pulsars | a celestial source of pulsating electromagnetic radiation (as radio waves) characterized by a short relatively constant interval (as .033 second) between pulses that is held to be a rotating neutron star |
| pulsar | a celestial source of pulsating electromagnetic radiation (as radio waves) characterized by a short relatively constant interval (as .033 second) between pulses that is held to be a rotating neutron star |
| VEGA | Second photographed star |
| reseau | grid photographed by a separate exposure onto a plate containing star images to facilitate astronomical measurements |
| PROXIMACENTAURI | Second-closest star to Earth |
