Ap and Bp stars are chemically peculiar stars (hence the "p") of spectral types A and B which show overabundances of some metals, such as strontium, chromium...

inorganic compound Ap and Bp stars AP site, a location in DNA or RNA Armour-piercing ammunition All Purpose, a common grade of wheat flour Ap (water), a Vedic...

star Subdwarf B star Late-type star Peculiar star Am star Ap and Bp stars Rapidly oscillating Ap star Barium star Carbon star CH star Extreme helium star...

A1P may refer to: A1p, a stellar classification for Ap and Bp stars America First Policies, a Trump campaign organization Lycoming O-360-A1P aircraft...

Rapidly oscillating Ap stars (roAp stars) are a subtype of the Ap star class that exhibit short-timescale rapid photometric or radial velocity variations...

HR-diagram from HIPPARCOS data. Absolute magnitudes and kinematics of BP - AP stars". Astronomy and Astrophysics. 336: 953. Bibcode:1998A&A...336..953G...

absorption lines of some metals, making it a member of the chemically peculiar Ap/Bp star class. For this particular star, silicon lines at 4,200 Å are notably...

This is a list of stars arranged by their apparent magnitude – their brightness as observed from Earth. It includes all stars brighter than magnitude...

observed that bluer stars were strongly associated with the spiral arms, and yellow stars dominated near the central galactic bulge and within globular star...

refers collectively to white dwarfs, neutron stars, and black holes. It could also include exotic stars if such hypothetical, dense bodies are confirmed...

This list covers all known stars, white dwarfs, brown dwarfs, and sub-brown dwarfs within 20 light-years (6.13 parsecs) of the Sun. So far, 131 such objects...

constellations and asterisms, and many of the brightest stars have proper names. Astronomers have assembled star catalogues that identify the known stars and provide...

of stars. Stars are astronomical objects that spend some portion of their existence generating energy through thermonuclear fusion. Lists of stars by...

BP Boötis is a solitary variable star in the northern constellation of Boötes, near the northern constellation border with Draco. It is visible to the...

stars". Astronomy and Astro-Physics. 13: 448. Bibcode:1894AstAp..13..448C. Zanstra, H.; Weenen, J. (1950). "On physical processes in Wolf–Rayet stars...

stable Q-balls with a large baryon number B. They may exist in neutron stars that have absorbed Q-ball(s). Black hole Stellar black hole Compact star...

table shows the lifetimes of stars as a function of their masses. All stars are formed from collapsing clouds of gas and dust, often called nebulae or...

happening"". 2015-01-19. Beech, Martin (2019-03-28). Introducing the Stars: Formation, Structure and Evolution. Springer. p. 166. ISBN 9783030117047. Zhao, Xian-Feng...

Ocean Therapy Solutions, BP and others to the contrary, Baldwin and Contogouris were told that BP was still testing the machines and had not yet committed...

from the Earth. This is classified as an Ap/Bp star, with a peculiar spectrum showing lines of chromium and europium that change in intensity over a period...

noteworthy stars. Notable variable stars (prototypes, rare or otherwise important). Nearest stars (<20 ly). Stars with planets. Notable neutron stars, black...

muons), and balanced against gravitational collapse by degeneracy pressure or other quantum properties. Types of exotic stars include quark stars (composed...

hydrogen burning), and a very large envelope of material of composition similar to main-sequence stars (except in the case of carbon stars). When a star exhausts...

Below are lists of the largest stars currently known, ordered by radius and separated into categories by galaxy. The unit of measurement used is the radius...

of the most massive stars that have been discovered, in solar mass units (M☉). Most of the masses listed below are contested and, being the subject of...

the starspots and chemical anomalies in HgMn stars is uncertain and has generated controversy. Typically, such as for Ap and Bp stars, inhomogeneously...

Traditional astronomy tends to group stars into constellations or asterisms and give proper names to those, not to individual stars. Many star names are, in origin...

astronomy, stars have a variety of different stellar designations and names, including catalogue designations, current and historical proper names, and foreign...

binary star system is a system of two stars that are gravitationally bound to and in orbit around each other. Binary stars in the night sky that are seen as...

reddish-orange, including the spectral types K and M, sometimes G, but also class S stars and most carbon stars. Red giants vary in the way by which they generate...