But it slid across the stellar background, and it was more constant than the fireballs twinkling around.
If it gives off radiation in the thermal infrared or microwave regions, the signal is swamped by the stellar background.
The planets (the word comes from the Greek for "wanderer") were brighter than most stars, and they moved against the stellar background.
"That moon is moving against the stellar background," Chandelle pointed out.
I needed a minute to place myself against the stellar background, and another to find the distortion Sonya Laskin had mentioned before she died.
If the Earth were not rotating relative to the stellar background, its gravitational field would be unchanged.
Seven green dots of varying size moved against a stellar background.
It did not twinkle and it did not move against the stellar background.
When Plateau was in danger of being lost against the stellar background, he turned the ship toward Wunderland.
She has pretty looks, a stellar academic background, and a wealthy dad.