stars: formationHertzsprung-Russell and C-M diagramsstars: pre-main sequenceopen clusters and associations: individual: NGC 6530Context. In very young clusters, stellar age distribution is empirical proof of the duration of star cluster formation and thus it gives indications of the physical ...
The estimated age of the cluster is 17 ± 3 million years. In the study, the brightest star in the K-band that lay in the same line of sight as the cluster (St2-18) was given the identifier 1. The study concluded that the star likely had considerable infrared excess and may be a ...
These stars can appear significantly younger than their co-eval neighbouring stars in a cluster.Footnote 4 Secondly, the accretor star adjusts its structure to a new equilibrium. If the timescale of the mass transfer is shorter than the thermal timescale of the accretor, the star will ...
that the 120 M⊙ star will not be identified as an O3–4 V or B0 I, but rather as a hydrogen-rich, WN Wolf–Rayet star, similar to the highest mass (but unevolved) stars seen in the R136 cluster in the LMC and NGC 3603 in the Milky Way: “Of-type stars on steroids” (Crowt...
Detailed characterization of these rare but precious globular cluster cataclysmics will yield valuable insights into the long-term evolution of CVs. Sign in to download full-size image Fig. 2. The HST/WFPC2 F336W (U) - F675W (R) color magnitude diagram of M80 (NGC 6093). T Sco ...
How might you be misled if you studied only the brightest galaxies in a cluster? Why are optical astronomers for the most part limited to nighttime observation, whereas radio astronomers can observe during the day? How many meters are in a parsec? What is the appro...
star (EK Draconis; G1.5V, age 100 Myr, rotation 10 ×ΩSun) and with a mean-field dynamo simulation suggests that starspots can be of significantly different appearance and cannot be explained with a scaling of the solar model, even for a star of same mass and effective temperature. Star...
DesignationDynamicsEffective temperatureLuminosity KinematicsMagnetic fieldAbsolute magnitudeMassMetallicityRotationStarlightVariablePhotometric system Color indexHertzsprung–Russell diagramColor–color diagram Star systems Binary ContactCommon envelopeEclipsingSymbioticMultipleCluster ...
I had spent the past several hours trying to figure out the mystery of the pointing. By now, only stragglers were sampling the field. Enough, I said, let me try a newer add on. The Stargate Asterism or Stargate Cluster is an asterism in the constellation Corvus consisting of six ...
The Pleiades, an open cluster of stars in the constellation of Taurus. These stars share a common motion through space.[140] The motion of a star relative to the Sun can provide useful information about the origin and age of a star, as well as the structure and evolution of the surroundi...