Ophiuchus

(redirected from Ophiuchi)
Also found in: Dictionary.
Related to Ophiuchi: Ophiuchus

Ophiuchus

(of-ee-yoo -kŭs, oh-fee-) (Serpent Bearer) A large equatorial constellation near Scorpius, lying partly in the Milky Way. The brightest star is the 2nd-magnitude white giant Rasalhague (α), which lies close to Rasalgethi (Alpha [α] Herculis). The area contains the supernova remnant of Kepler's star, the Rho (ρ) Ophiuchi cloud, in which there is active star formation (see Rho Ophiuchi cloud), the loose open cluster IC 4665, and many globular clusters. Abbrev.: Oph; genitive form: Ophiuchi; approx. position: RA 17h, dec –7°; area: 948 sq deg.
References in periodicals archive ?
4 eta Ophiuchi points the way 3o north to the planetary nebula NGC 6309.
Workshop on RS Ophiuchi and the Recurrent Nova Phenomenon (2006: Keele, UK) Ed.
The observations focused on a system called RS Ophiuchi, which is actually a pair of stars 5,000 light-years from Earth.
18 RS Ophiuchi has excited scientists because it appears to be on the brink of becoming what?
Let's start by looking toward the inner regions of the Milky Way at one of the most colorful and photogenic targets: the Rho Ophiuchi Cloud Complex.
95') Regulus near the Moon (09h) Mercury between the Sun and Earth (22h) 19 Spica (18h) and Mars (23h) near the Moon 21 Moon occults Saturn (21h) 22 Last Quarter Moon (19h) Moon occults chi Ophiuchi (22h) 23 Neptune at conjunction (20h) 24 Moon furthest south (-19.
In the stellar nursery near the star Rho Ophiuchi, located in the constellation Ophiuchus, researchers from the Niels Bohr Institute at the University of Copenhagen detected signatures of the simplest possible sugar in nature, glycolaldehyde.
NASA's Spitzer Space Telescope, a space-based infrared observatory, spotted the buckyballs around the double-star system XX Ophiuchi.
Path was from alpha Ophiuchi, passed 109 Herculis and toward alpha Lyrae (15[degrees] to 20[degrees]).
Sprawling and mostly dim, Ophiuchus has a fairly bright, 2nd-magnitude head--Alpha (a) Ophiuchi, also known as Rasalhague.
Some 300 young stars shine through the dust in this infrared portrait of the main cloud of a nearby star-forming region called Rho Ophiuchi.
The recurrent nova RS Ophiuchi (RS Oph) has previously reached this level of brightness five times in the last 108 years, most recently in 1985.