Galactic Coordinates articles
What is the official catalog designation for the Coma Cluster?
What type of galaxies dominate the dense core regions of the Coma Cluster?
What physical process transforms spiral galaxies as they move inward toward the Coma Cluster's harsh environment?
Which two supergiant elliptical galaxies anchor the core of Abell 1656?
Fritz Zwicky performed his dark matter inference in the 1930s by analyzing what key measurement of the member galaxies?
What fraction of the Coma Cluster's total mass is modern estimates believed to be dark matter?
The Coma Cluster's location near the North Galactic Pole grants observers what specific advantage?
The cluster spans approximately how many light-years across, dwarfing the Milky Way's width?
The cluster's known recession velocity, quantified by its redshift ($z$), is approximately what value?
The hot gas permeating the space between galaxies in the cluster emits X-rays at what typical temperature range?
The Coma Cluster is structurally linked to which other cluster to form the larger Coma Supercluster?
When imaging the cluster, a slight natural yellowish cast in a processed image might indicate successful capture of which population?
What did Vera Rubin's measurements reveal about the rotation curves of spiral galaxies?
How should orbital velocities behave far from a galactic core based on visible matter and Newtonian gravity?
What discrepancy led Fritz Zwicky to infer the presence of *dunkle Materie* in galaxy clusters?
What characteristic is required for the favored Weakly Interacting Massive Particles (WIMPs) candidates?
What does the mass discrepancy imply about the dominance of unseen mass in the outer regions of a spiral galaxy?
What term describes the established contradiction between theoretical Keplerian predictions and observed flat rotation curves?
If a star orbits at 50,000 light-years, how should its speed compare to a star at 10,000 light-years in a purely visible matter model?
What is the central premise of Modified Newtonian Dynamics (MOND) regarding galactic rotation?
What term did Fritz Zwicky use for the unseen mass required to bind galaxy clusters?
What must be true about the density contributed by the dark component in outer galactic regions according to the flat rotation curve?
What is the primary implication of the discrepancy between theory (Keplerian dynamics) and observation (flat curves) regarding evidence standards?
What defines the reference plane for the Galactic Coordinate System (GCS)?
What is the Galactic Latitude ($b$) of a celestial object lying directly within the Galactic Plane?
In the Galactic Coordinate System, the $0^ ext{ extdegree}$ Galactic Longitude ($l$) points toward which specific location?
Which constellation currently contains the direction of the Galactic Center as viewed in the Equatorial Coordinate System?
What is the approximate distance ($R_0$) from the Sun to the Galactic Center, as measured in kiloparsecs (kpc)?
What is the conventional range for the Sun's Galactic Longitude ($l$)?
What is the approximate speed of the Sun orbiting the Galactic Center relative to nearby stars?
When using the GCS, where are objects located that exhibit high absolute values of Galactic Latitude ($|b|$)?
What specific radio source defines the zero point for the Galactic Coordinate System?