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h h This third volume of RC3 indudes data for galaxies between 12
and 24 . For convenience, we repeat the explanation of the
catalogue entries below. Details of the reduction procedures, and
Notes, References, and Appendices are in Volume 1. 2. The Catalogue
The data for each galaxy are found on four successive lines on a
single page. The entries are as follows: Column 1: Positions Line
1: RA and DEC = right ascension and dedination for the equinox
2000.0, precessed from the 1950.0 position in Column 1, Line 4,
given to 0.1 second of time and 1 arcsec when available, and to 0.1
minute of time and 1 arcmin otherwise (Section 3.1.a). Line 2: land
b = galactic longitude and latitude in the lAU 1958 system (Blaauw
et al. 1960); both to O~O1. Line 3: SGL and SGB = supergalactic
longitude and latitude in the RC2 system (Section 3.1.b), both to
O~O1. Line 4: RA and DEC = right ascension and dedination for the
equinox 1950.0 (Sec- tion 3.1.a). Column 2: Names = commonly used
designations for the galaxies (Section 3.2). Line 1: Names (e.g.,
LMC, SMC) or NGC and IC designations. Line 2: UGC (Nilson 1973),
ESO (Lauberts 1982), MCG (Vorontsov-Velyaminov et al. 1962-1974),
UGCA (Nilson 1974), and CGCG (Zwicky et al. 1961-1968) des-
ignations, given in that order of preference. MCG designations not
listed here are given in UGC and ESO.
This second volume of RC3 includes data for galaxies between Oh and
12h. For convenience, we repeat the explanation of the catalogue
entries below. Details of the reduction procedures, and Notes,
References, and Appendices are in Volume 1. 2. The Catalogue The
data for each galaxy are found on four successive lines on a single
page. The entries are as follows: Column 1: Positions Line 1: RA
and DEC = right ascension and declination for the equinox 2000.0,
precessed from the 1950.0 position in Column 1, Line 4, given to
0.1 second of time and 1 aresec when available, and to 0.1 minute
of time and 1 arcmin otherwise (Section 3.l.a). Line 2: I and b =
galactic longitude and latitude in the lAU 1958 system (Blaauw et
al. 1960); both to 0?01. Line 3: SGL and SGB = supergaladie
longitude and latitude in the RC2 system (Section 3.l.b), both to
0?01. Line 4: RA and DEC = right ascension and declination for the
equinox 1950.0 (Sec- tion 3.l.a). Column 2: Names = commonly used
designations for the galaxies (Section 3.2). Line 1: Names ( e.g.,
LMC, SMC) or NGC and IC designations. Line 2: UGC (Nilson 1973),
ESO (Lauberts 1982), MCG (Vorontsov-Velyaminov et al. 1962-1974),
UGCA (Nilson 1974), and CGCG (Zwicky et al. 1961-1968) des-
ignations, given in that order of preference. MCG designations not
listed here are given in UGC and ESO.
'It is strongly biased towards the author's speciality of galaxy
morphology, and particularly to bars and rings. To be fair, these
are often given fairly short shrift in other textbooks, so this is
a useful source of detail on such topics from an expert. In
addition, references to original technical papers are given
throughout which makes the book a handy introduction to the
literature (which students may well find useful).'The Observatory
MagazineThe main goal of the book is to introduce the reader to the
world of spiral galaxies, how spirals were discovered, what they
represent from a physical point of view, and what people have
learned about the universe and the nature of galaxies in general
from the study of spirals. Topics include early discoveries of
nebulae, the island universe concept, the structure of spirals as
seen both visually with telescopes and in images obtained with
different filters, the role of spirals in the discovery of
interstellar dust and dark matter, the different kinds of spiral
galaxies and the importance of bars and rings, how different
non-spiral galaxy types such as elliptical galaxies and S0 galaxies
connect to spirals, and how spirals have contributed to our
understanding of star formation and evolution, galaxy formation and
evolution, the cosmological distance scale, and the universal
expansion. The Milky Way as a spiral galaxy is also discussed.The
book is profusely illustrated and not only a discourse on the
spirals, but is also a personal reminiscence based on the author's
studies of spiral galaxies over the past 45 years.
'It is strongly biased towards the author's speciality of galaxy
morphology, and particularly to bars and rings. To be fair, these
are often given fairly short shrift in other textbooks, so this is
a useful source of detail on such topics from an expert. In
addition, references to original technical papers are given
throughout which makes the book a handy introduction to the
literature (which students may well find useful).'The Observatory
MagazineThe main goal of the book is to introduce the reader to the
world of spiral galaxies, how spirals were discovered, what they
represent from a physical point of view, and what people have
learned about the universe and the nature of galaxies in general
from the study of spirals. Topics include early discoveries of
nebulae, the island universe concept, the structure of spirals as
seen both visually with telescopes and in images obtained with
different filters, the role of spirals in the discovery of
interstellar dust and dark matter, the different kinds of spiral
galaxies and the importance of bars and rings, how different
non-spiral galaxy types such as elliptical galaxies and S0 galaxies
connect to spirals, and how spirals have contributed to our
understanding of star formation and evolution, galaxy formation and
evolution, the cosmological distance scale, and the universal
expansion. The Milky Way as a spiral galaxy is also discussed.The
book is profusely illustrated and not only a discourse on the
spirals, but is also a personal reminiscence based on the author's
studies of spiral galaxies over the past 45 years.
The Steven C. Minkin (Union Chapel) Paleozoic Footprint Site ranks
among the most important fossil sites in the world today, and
Footprints in Stone recounts the accidental revelation of its
existence and detailed findings about its fossil record. Currently
2,500 miles from the equator and more than 250 miles north of the
Gulf of Mexico, the Minkin site was a swampy tropical forest
adjacent to a tidal flat during the Coal Age or Carboniferous
Period more than 300 million years ago. That fecund strand of sand
and mud at the ocean's edge teemed with the earth's earliest
reptiles as well as amphibians, fish, horseshoe crabs, spiders,
jumping insects, and other fascinating organisms. Unlike dinosaurs
and other large animals whose sturdy bodies left hard fossil
records, most of these small, soft-bodied creatures left no
concrete remains. But they did leave something else. Preserved in
the site's coal beds along with insect wings and beautifully
textured patterns of primeval plants are their footprints,
fossilized animal tracks from which modern paleontologists can
glean many valuable insights about their physical anatomies and
behaviors. The paleontological examination of fossil tracks is now
the cutting-edge of contemporary scholarship, and the Minkin site
is the first and largest site of its kind in eastern North America.
Discovered by a local high school science teacher, the site
provides both professional and amateur paleontologists around the
world with a wealth of fossil track samples along with an
inspirational story for amateur explorers and collectors.
Authoritative and extensively illustrated, Footprints in Stone
brings together the contributions of many geologists and
paleontologists who photographed, documented, and analyzed the
Minkin site's fossil trackways. An engrossing tale of its
serendipitous discovery and a detailed study of its fossil records,
Footprints in Stone is a landmark publication in the history of
paleontology.
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