CHALLENGING DEEP SKY OBJECTS
by The Deep Sky Group
Saguaro Astronomy Club
Version 1.0, dated Sat 02-03-1990

Abbreviations for the Object names are as follows:
B= Barnard, Cr= Collinder, H= Harvard, IC= Index Catalog,
J= Jonckheere, Mel= Melotte, NGC= New General Catalog,
Sh= Sharpless, Tr= Trumpler.
Constellation abbreviations are the IAU standard.
Type abbreviations:
GLCL= Galaxy Cluster, GC= globular cluster, OC= open cluster,
PN=planetary nebula, EN= emission nebula, SNR= supernova remnant,
RN= reflection nebula, DN= dark nebula
Galaxies are identified by their Hubble type.
Sizes are in arc minutes, unless noted otherwise.

Object
Con
Type
RA_2000
Declination
Mag
Size
Notes
Abell 426 PER GLCL 03 19.7 +41 30 13 30 In Milky Way field
Abell 1367 LEO GLCL 11 44.5 +19 50 14 30 Many Gals >14 mag
Abell 1656 COM GLCL 12 59.8 +27 59 11 120 Coma Galaxy Cluster
MCG06-07-001 FOR E1 02 39.9 -34 32 13 65 Fornax Dwarf
Maffei 1 CAS Sd? 02 36.3 +59 39 14 5x3 Dim, red dwarf