hours, TFT
For Trevor Gray, half an hour passed. In the universe outside, six and a half hours slipped away, and with them another 7 billion kilometers, or forty-six more astronomical units.
He was just over three quarters of the way to the target.
He wondered how the other eleven pilots of the squadron were doing … but shrugged off the question. His AI would alert him if the tenuous data link with another fighter snapped. That hadn’t happened yet, so the chances were good that the others all were out there, as bored and, paradoxically, as nervous as he was.
In another eleven subjective minutes, he would begin the deceleration phase of the strike, but that would be handled by his AI. Coordination of the timing within the flight of twelve gravfighters had to be exact, or they would drop down to combat speed scattered all over the sky, rather than in attack formation.
He spent the time studying the world now just two and a half light hours ahead.
His AI had last updated his target data from America’s CIC just before the squadron had boosted, which meant that his information about the enemy’s strength and dispositions around Eta Boötis were now a full seventeen hours out of date. That was the tricky aspect to near-c deployment; once you boosted to relativistic speeds, you couldn’t be exactly sure of what you were getting into until you were nearly there.
His Starhawk’s forward sensors, at this speed, were all but useless. Radiation from ships around Eta Boötis IV was strongly distorted both by relativistic effects and by the “dustcatcher,” a high-gravity zone maintained ahead of the fighter at near-c even when the ship wasn’t accelerating, to trap or deflect dust and gas in the gravfighter’s path. Any information that made it to the fighter’s sensors was lost in the light-smeared ring representing the star dead ahead.
According to the most recent electronic intelligence, though, there were fifty-five ships there—almost certainly all Turusch—orbiting Eta Boötis IV or on final approach. And there was a way to slightly improve the view.
He moved his hands within the control field. On the mirrored black surface of his Starhawk, three sensor masts detached from the hull and swung out and forward, each two meters long at the start, but unfolding, stretching, and growing to reach a full ten meters from the ship. The receivers at the ends of the masts, spaced equidistant around the fighter, extended far enough out to let them look past the nebulous haze of the dustcatcher. As Gray watched, the inner circle of light on the cockpit display grew sharper and brighter. Incoming radiation was still being distorted by the Starhawk’s velocity, of course, but now he could see past the distortion of the singularity, and even take advantage of the dustcatcher’s gravitational lensing effect.
Bright flashes silently popped and flared across the display now, however. Extended, the sensor masts were striking random bits of debris—hydrogen atoms, mostly, adrift in the not-quite-perfect vacuum of space and made deadly by the gravfighter’s speed. Impact at this speed with something as massive as a meteoric grain of sand could destroy the mast; his AI had to work quickly.
The data came up less than five seconds later, and with a feeling of relief Gray retracted the sensor masts back into the hull, safe behind the blurring distortion of the dustcatcher. The fighter’s artificial intelligence had sampled the incoming radiation, sorting through high-energy photons to build a coherent picture of what lay ahead.
Resolution was poor. Only a few ship-sized targets—the most massive—could be separated from the distortion-induced static. The AI did its best to match up the handful of targets it could see now with those that had been visible to America’s sensors hours earlier. By combining the America data with this fresh, if limited, glimpse, the AI could make a close guess at the orbits of a few of the enemy vessels, and predict where they would be—assuming no changes in orbit—in another 136-plus minutes, objective.
Fifteen targets. Gray had hoped there would be more, but it was something with which to work. Fifteen large starships appeared to be in stable, predictable orbits around the target world, their orbital data precise enough to allow a clear c-shot at them. Of those fifteen, six, the data predicted, would be on the far side of the target planet 136 objective minutes from now, so they were off the targeting list. The remaining nine, however, were fair game.
The actual targeting and munitions launch were handled automatically by the AI-net, requiring only Gray’s confirmation for launch. So long as there was no override from Commander Allyn, all eleven Starhawks would be contributing to the PcB, the Pre-engagement c Bombardment.
Release would be at a precisely calculated instant just before deceleration. He checked the time readouts again. Five minutes, twelve seconds subjective to go.
He worked for a time trying to get a clearer look at the objective. The visual image was blurred, grainy, and heavily pixilated, but he could make out the planet, Eta Boötis IV, sectioned off by green lines of longitude and latitude, the shapes of continents roughed in. Fifteen red blips hung in space about the globe, most so close they appeared to be just skimming the globe’s surface, and he could see their motions, second to second, as the AI updated their locations. A white blip on the surface marked the objective—General Gorman’s slender beachhead. It was on the side of the planet facing Gray at the moment, the planet’s night side, away from the local sun, but in another two hours objective, it would be right on the planet’s limb—local dawn.
Additional red blips flicked on, a cloud of them, indistinct and uncertain, centered around and over Gorman’s position. Those marked enemy targets for which there was no orbital data and that most likely were actively attacking the Marine perimeter. Or rather, they had been 136 minutes ago, when the photons revealing their positions had left Eta Boötis IV. For all Gray knew, the perimeter had collapsed hours ago, and the squadron was about to make a useless demonstration at best, fly into a trap at worst. He shoved the thought aside. They were committed, had been committed since boosting clear of the America. They would know the worst in another few subjective minutes.
He opened his fighter’s library, calling up the ephemeris for Eta Boötis and its planets. He scrolled quickly through the star data, then slowed when he reached the entry for the fourth planet.
PLANET: Eta Boötis IV
NAME: Al Haris al Sama, (Arabic) “Guardian of Heaven”; Haris; Mufrid.
TYPE: Terrestrial/rocky; sulfur/reducing
MEAN ORBITAL RADIUS: 2.95 AU; Orbital period: 4y 2d 1h
INCLINATION: 85.3 ; ROTATIONAL PERIOD: 14h 34m 22s
MASS: 1.8 Earth; EQUATORIAL DIAMETER: 24,236 km = 1.9 Earth
MEAN PLANETARY DENSITY: 5.372 g/cc = .973 Earth
SURFACE GRAVITY: 1.85 G
SURFACE TEMPERATURE RANGE: ~30ºC – 60ºC.
SURFACE ATMOSPHERIC PRESSURE: ~1300 mmHg
PERCENTAGE COMPOSITION: CO2 30.74; SO2 16.02; SO3 14.11; NH4 13.63; OCS 12.19; N2 5.55; O2 3.85; CH3 2.7; Ar 0.2; CS2 variable; others <800 ppm
AGE: 2.7 billion years
BIOLOGY: C,
