NGC 884/869 Double Cluster - TS Optics 90/600 APOnytecam
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摘要: We announce the discovery of six β Cephei stars and many other variable stars in the young open cluster h Persei (NGC 869). The cluster seems to be very rich in variable B-type stars, similarly to its twin, χ Persei (NGC 884)....
Double Cluster w NGC 869 Galaxy CET 13.9 - 1.1' Sa Opn CL CAS - - 8' II 2p 20 11 Galaxy CET 13 - 2' SB Ring H III 486 Galaxy PHE 13.3 13.2 1' Elliptical Galaxy TRI 11.2 12.7 2.9' E4 H II 225;UGC 1823 Galaxy AND 9.9 13.6 13.1' Sb NGC 1023 group;Lord Rosse drawing shows...
(G. arboreum(20) andG. raimondii(20)). Like in the cluster analysis results of Arabidopsis [21] and rice [24], the 114 cottonCNGCgenes were divided into 5 groups (I, II, III, IVA, and IVB). Analysis of gene structure and protein sequences showed thatCNGCgene members of each ...
NGC 6791is an open star cluster in the constellation Lyra. It was discovered by Friedrich August Theodor Winnecke in 1853. At roughly 8 billion years old, and with an Iron to Hydrogen abundance ratio that is more than twice that of the Sun, it is one of the oldest and mostmetal-richc...
NGC 4473 is a so-called double sigma (2σ) galaxy, i.e. a galaxy with rare, double peaks in its 2D stellar velocity dispersion. Here, we present the globular cluster (GC) kinematics in NGC 4473 out to ∼10Re (effective radii) using data from combined Hubble Space Telescope/Advanced ...
The globular cluster NGC 288 was previously reported to exhibit two distinct red giant branches (RGBs) in the narrow-band Calcium (HK) and Strmgren b and y band passes. In order to investigate this phenomenon further, we obtained moderate resolution (R \sim \sim 18,000) spectra of 27 RGB...
内容提示: arXiv:1406.5220v1 [astro-ph.SR] 19 Jun 2014Light Element Chemistry and the Double Red Giant Branch inthe Galactic Globular Cluster NGC 288Tif f any Hsyu 1 , Christian I. Johnson 2,4 , Young–Wook Lee 3 , and R. Michael Rich 1ABSTRACTThe globular cluster NGC 288 was ...
Historical Identification: Per Dreyer, NGC 2808 (= GC 1793 = JH 3152, Dunlop #265, 1860 RA 09 09 10, NPD 154 17.3) is "a remarkable object, a globular cluster, very large, extremely rich, very gradually extremely compressed middle, 45 seconds of time diameter, stars from 13th to 15th...