The cosmic distance ladder (also known as the extragalactic distance scale) is the succession of methods by which astronomers determine the distances to...

Cepheid variable its distance is used as part of the cosmic distance ladder. The revised Hipparcos stellar parallax gives a distance to Polaris of about...

would provide Edwin Hubble with the rung on the cosmic distance ladder he would need to determine the distance to spiral nebula. Hubble used the 100-inch Hooker...

sides of the Sun in its orbit. These distances form the lowest rung of what is called "the cosmic distance ladder", the first in a succession of methods...

the currently accepted value due to errors in his distance calibrations; see cosmic distance ladder for details). Hubble's law can be easily depicted...

he published in 1786. The distance to the Pleiades can be used as a key first step to calibrate the cosmic distance ladder. As the cluster is relatively...

(for very short distances). The cosmic distance ladder is a set of ways of measuring extremely long distances. The straight-line distance between two points...

possible to estimate distances via the cosmic distance ladder. When the recessional velocities are plotted against these distances, a linear relationship...

The cosmic distance ladder (also known as the extragalactic distance scale) is the succession of methods by which astronomers determine the distances to...

as standard candles to measure (extra) galactic distances, assisting with the cosmic distance ladder. This class is named after the prototype and brightest...

a direct measurement of the distance to a galaxy, thereby providing an independent anchor for the cosmic distance ladder. M106 has a slightly warped,...

to construct the cosmic distance ladder. The relation between the angular diameter, θ, actual (physical) diameter, r, and distance, D, of an object from...

Thus the TFR constitutes a rung of the cosmic distance ladder, where it is calibrated using more direct distance measurement techniques and used in turn...

analyses agree, thereby making the cluster an important rung on the cosmic distance ladder. The open cluster is roughly twice as distant as the Hyades and...

accepted values of 74 km/s/Mpc (cosmic distance ladder method) or 68 km/s/Mpc (CMB method) due to errors in their distance calibrations. Yet the reason for...

portal Big Bang Comoving and proper distances Friedmann equations Parsec Physical cosmology Cosmic distance ladder Friedmann–Lemaître–Robertson–Walker...

methods (see Cosmic distance ladder). Accurate calculations of distance based on stellar parallax require a measurement of the distance from Earth to...

must then be adjusted accordingly. Astronomical units of length Cosmic distance ladder List of examples of lengths Orders of magnitude (length) Scale (analytical...

star catalogs. Astrometric parallax measurements form part of the cosmic distance ladder, and can also be measured by other space telescopes such as Hubble...

Hubble constant—one based on redshifts and another based on the cosmic distance ladder—disagree by about 10%. This difference, the Hubble tension, might...

an important step on the cosmic distance ladder. Parallax in astronomy Photometric parallax method Dynamical parallax Distance modulus Carroll, Bradley...

parallax of nearby stars provides a fundamental baseline in the cosmic distance ladder that is used to measure the scale of the Universe. Parallax measurements...

analyses agree, thereby making the cluster an important rung on the cosmic distance ladder. As seen from the Earth, the extinction of the cluster due to interstellar...

Astronomical Telegrams (CBAT) has tracked novae in M31, M33, and M81. Cosmic distance ladder Crab Nebula Guest star (astronomy) Hypernova Kilonova Micronova...

a graph Cosmic distance ladder, the succession of methods by which astronomers determine the distances to celestial objects Social distance, a sociological...

2003) Interstellar Probe (NASA 1999) Interstellar probe (Generic) Cosmic distance ladder (87269) 2000 OO67 (has an aphelion over 1000+ AU and orbits the...

physical parameters and distance are still poorly known. It would be a valuable step on the cosmic distance ladder, clarifying the distance of other high luminosity...

rendering the effect too imprecise to significantly improve the cosmic distance ladder. Another limitation comes from the fact that the measurement of...

of the cosmic microwave background tend to result in lower values than measurements by other means, such as photometry and cosmic distance ladder. For example...

observations. Astrometry is an important step in the cosmic distance ladder because it establishes parallax distance estimates for stars in the Milky Way. Astrometry...