User`s guide

84 Starry Night User’s Guide
Abell Cluster of Galaxies: The catalog was
originally prepared at the Bulgarian
Academy of Sciences. The Abell clusters
are rich, compact clusters of galaxies
identified by Abell (1958). These clusters
were identified on the red plates of the
Palomar Observatory Sky Survey (POSS).
The magnitude, if known, refers to the
brightest member. There are 2712 clusters
in this catalog.
Arp Peculiar Galaxies: A catalog of 338
peculiar galaxies gathered by Dr. Halton
C. Arp in his Atlas of Peculiar Galaxies.
The catalog is a selection of unusual or
peculiar galaxies, interacting pairs or
larger groups. Arp compiled the list with
photographs from the Palomar 200-inch
telescope in 1966. Magnitude, if known,
refers to brightest member.
Caldwell: The Caldwell catalogue consists
of 109 deep space objects not in the
Messier catalogue that can be viewed with
a small telescope. This catalogue was
originally compiled by Sir Patrick Moore,
and converted to Starry Night format by
Charles Gagne.
Celestron AAM Alignment Stars: The 28
alignment stars for Celestron's Advanced
Astro-Master, a digital setting circle
device. Created by Greg Miller.
Dark Nebula: 37 Dark Nebula taken from
the 2004 Observer's Handbook. Database
formatted into Starry Night format by
Terry Adrian.
Double Stars: The Saguaro Astronomical
catalogue of over 11 000 double stars,
including almost all double stars with a
primary brighter than magnitude 9 and a
secondary brighter than magnitude 13,
created by Steve Coe and A.J. Crayon,
converted into Starry Night format by Bill
Arnett.
Finest NGC: A subset of 110 of the best
deep space objects in the NGC catalogue,
none of which are in the Messier
catalogue. This list was originally
compiled by Alan Dyer and converted to
Starry Night format by Richard
Weatherston.
Herschel 400: A subset of 18th century
astronomer William Herschel's catalogue
of deep space objects. It is designed as a
list of objects for amateurs to observe after
they have seen all the Messier objects. The
Herschel 400 was originally compiled by
Brenda Branchett and converted to Starry
Night format by Michael Desjarlais.
Local Group Galaxies: The 30 or so nearby
galaxies that form our "Local Group". All
of these galaxies are within about five
million light years of Earth. Created by
Bill Arnett.
LX200 Alignment Stars: All of the bright
stars used to align Meade's LX200
telescope. Created by Bill Arnett.
Meteor Showers (RASC): An alternate
meteor shower database with radiant data
from the Royal Astronomical Society
Observer's Handbook. Created by Stephen
Hutson.
Navigational Stars: The 57 bright stars
used for celestial navigation in the
Nautical Almanac.
Nexstar 5 Stars: All 10 000 stars in the
star catalogue built into Celestron's