Contributed by Stephen Saber.
From: https://messiercaldwellmarathon.blogspot.com/

MessCal Marathon

messier-caldwell marathon

adding the available caldwell showpieces- many within a stone's 
throw of the messiers- is a rewarding way to keep the dso hunt 
momentum going while waiting for the sky to turn.

here's a template for 40deg N, but can easily vary as to when 
one wishes to jump on and off the messier track, and for latitude 
dependent target additions/omissions. this route adds 62 caldwells 
to the 110 messiers. some march caldwells not reaching at least 
10deg altitude are not included.


M74, M77, M33
C28 (ngc752)
C23 (ngc891)
M31, M32, M110
C18 (ngc185)
C17 (ngc147)
M52
C11 (ngc7635)
C13 (ngc457)
M103
C8 (ngc559)
C10 (ngc663)
C5 (ic342)
C14 (ngc869/884)
M76, M34
C24 (ngc1275)
M45

M79, M42, M43, M78, M50, M41
C64 (ngc2362)
M93
C58 (ngc2360)
M46, M47
C54 (ngc2506)
M48
C50 (ngc2244)
C49 (ngc2237-9)
C46 (ngc2261)

C41 (mel25)
C39 (ngc2392)
M35, M1, M37, M36, M38
C31 (ic405)
C25 (ngc2419)
M44, M67
C48 (ngc2775)
M95, M96, M105, M65, M66
C40 (ngc3626)
C53 (ngc3115)
C59 (ngc3242)

M81, M82
C7 (ngc2403)
C3 (ngc4236)
M97, M108, M109, M40, M106
C21 (ngc4449)
C26 (ngc4244)
C32 (ngc4631)
C29 (ngc5005)
M94, M63, M51, M101, M102

M98, M99, M100, M85, M84, M86
M87, M88, M91, M90, M89

M58, M59, M60, M49, M61
C38 (ngc4565)
C36 (ngc4559)
C35 (ngc4889)
M64, M53, M3
C45 (ngc5248)
C52 (ngc4697)
M104
C60 (ngc4038)
C61 (ngc4039)
M68, M83
C66 (ngc5694)

M5, M13, M92
C6 (ngc6543)
C1 (ngc188)
M57, M56
C15 (ngc6826)

M39
C20 (ngc7000)
M29
C27 (ngc6888)
C33 (ngc6992/5)
C34 (ngc6960)
C37 (ngc6885)
M27, M71

M12, M10, M14, M107, M9, M4
M80, M62, M19

M11, M26, M16, M17, M18, M24
M25, M23, M21, M20, M8, M28
M22

C75 (ngc6124)
C76 (ngc6231)
C69 (ngc6302)
M6, M7, M69, M70, M54, M55, M75
C57 (ngc6822)
C47 (ngc6934)
C42 (ngc7006)
M15, M2, M72, M73
C55 (ngc7009)
C30 (ngc7331)*
C19 (ic5146)
C16 (ngc7243)
C22 (ngc7662)
C12 (ngc6946)
C4 (ngc7023)
C9 (sh2-155)
C2 (ngc40)
M30

*this pre-m30 target sequence is ordered to allow cepheus 
maximum altitude while moving away from the approaching 
morning twilight dome.

*****

[c55/the saturn nebula courtesy of seds]