The Hobus star was located in the Beta Quadrant's Devron sector, 500 light-years from Romulus,[citation needed] in the outermost reaches of the Romulan Star Empire. It was one of the oldest stars in the galaxy. (ST comic: "Countdown")


In the year 2387, the Hobus star exploded in a supernova which threatened the galaxy. The first indications of the disaster were observed on stardate 64333.4 by the crew of the Romulan Mining Guild starship Narada, who were mining the first planet in the star system, Hobus I, for the rare mineral decalithium. Wild fluctuations in Hobus's radiation output forced the Narada to abandon a mining operation and evacuate the area at warp speed. The star erupted, destroying the planet. Ambassador Spock warned the Romulan Senate that the imminent supernova would be "unlike any the galaxy has ever seen" and that the star had converted the planet's mass into energy, increasing its own power. (ST comic: "Countdown")

27 hours after stardate 64444.5, the Hobus star exploded, the effects propagating through subspace at multiwarp speeds, destroying the planets Romulus and Remus. On stardate 64471.6, Ambassador Spock, using the prototype ship Jellyfish equipped with red matter, created a black hole, absorbing the exploding star. (STO website: The Path to 2409; TOS movie, novelization & comic adaptation: Star Trek; ST comic: "Countdown")

The supernova left behind the parsecs-deep, amber-hued Hobus Nebula. At the center of the nebula, the Hobus stellar remnant, known as the Hobus Cinder, is still active and can be seen pulsing through the nebula gasses (STO novel: The Needs of the Many)

In 2388, Admiral Kathryn Janeway flew the first survey mission of the Hobus Nebula aboard a variant of the Delta Flyer with a crew of volunteers. It was discovered that the supernova's neutrino output was somehow being shunted into subspace, and that the Hobus Cinder continued to output intense streams of X-rays, gamma rays, delta rays, epsilon radiation, Berthold rays and tetryon particles. (STO novel: The Needs of the Many; STO missions: "Revelation", "Ground Zero")

As mandated by the Federation Science Council, Starfleet conducts annual surveys of the Hobus Nebula. In the early 2400s, Admiral Janeway commanded one such mission aboard the Excalibur-class USS Tucker, where she was interviewed by Jake Sisko. In the interview, Janeway classified Hobus as a type 1a supernova with unexplained light speed properties. In other words, the wave was propagating outward at multi-warp speeds, something no natural supernova should be able to do. (STO novel: The Needs of the Many)

In 2409, a Romulan Republic warbird captained by the Virinat survivor and Tovan Khev investigated the Hobus system based on intelligence found in Tal Shiar files acquired during an undercover operation to infiltrate the Tal Shiar. During the investigation, the Warbird discovered a hidden base on an asteroid near Hobus II. As they explored the base, they found working Iconian technology, some of which had been hybridized by Romulan technology. Upon reaching the base's gateroom, the away team found Praetor Taris who had been missing since Sela's take over of Romulan Star Empire.

Taris revealed she had given the order to detonate the device (which was Iconian in origin) in the Hobus star, causing the supernova. However, she had been duped by her right hand man, Colonel Hakeev of the Tal Shiar. Hakeev had told her the device would allow her to contact the Iconians, something Taris now suspected had been a fabrication to advance Hakeev's own cause. Taris pleaded with the Virinat Survivor to be allowed to continue her work, in an attempt to contact the Iconians and diplomatically solving the issues the race had seeded throughout the galaxy. Unfortunately, the Tal Shiar tracked Taris and the Virinat Survivor (his cover exposed) to this base. Taris fled through the Iconian Gate to her base on Iconia while the Virinat's survivor's crew returned to the ship while the survivor fled through the gateway as the station was destroyed. (STO mission: "Revelation")

A few weeks later, a Starfleet ship performed a more thorough scan than Admiral Janeway's of the system and found a Reman base on Hobus I. Inside the base they found evidence that the destruction of the Hobus star was caused by protomatter explosives injected into the core of the star. It seems that the shock wave fed on energy from the surrounding planets, allowing it to travel as fast as it did. This explained the strange behavior of the supernova, but it still remained a mystery to Starfleet who had done this. (STO mission: "Ground Zero")

The supernova was seen by one version of the 29th century Starfleet Captain Braxton as an event that could destroy the Milky Way Galaxy. (TNG - Myriad Universes comic: "The End of History")



Iota Pavonis sector block
bordered locations: Iota PavonisAlpha Centauri sector blockFederation-Romulan Neutral ZoneEridan Belt
sector Z-6 Fvillhaih system (Fvillhaih IFvillhaih II) • Lirss system (Lirss Prime) • Vhoran system (Vhoran)
Iconia system Iconia IIconia (Iconia's inner moonIconia's outer moon)
Tarod sector
Romulan sector/sector 30
Dimorus system (DimorusDimorus IIDimorus II-A) • Great Bloom/Bassen RiftK'shan system (K'shan) • Lonco system • Sarita system (Sarita III)
Romulus system Eisn/Romulus B: I. Aranusia • IIA/B. Romulus/Remus • III. S'latas • IV. D'lanam • V. Ulunam • VI. Trijth
Bolarus sector
Bolian/Tango sector
Breshar system • Ch'menira system • Llaiir system • NGC 1218Ponor systemRashana system • system Y
Bolarus system I. Se'ka • II. Krith • III. Bol'turFirst Bolarus asteroid belt • IV. Harmar • V. Bolin • VI. Tha'lat • VII. Ral'narSecond Bolarus asteroid belt • VIII. Sol'nar • IX. Bolarus IX • X. Motal • XI. Sernar • XII. Sath • XIII. Ki'siu
Devron sector Aihai system • Cero system • Delta Corvi system • Devron system • Fitzan system • Hobus system

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