Another project to capture as many Caldwell objects as possible. Many of the later ones (60+) are southern hemisphere objects so it is unlikely I will get them here – at least not without some travel.
“The Caldwell Catalogue is an astronomical catalog of 109 bright star clusters, nebulae, and galaxies for observation by amateur astronomers. The list was compiled by Sir Patrick Caldwell-Moore, better known as Patrick Moore, as a complement to the Messier Catalogue.”
| C# | NGC/IC | Con. | Type | Mag. | Size () | Description |
| 1 | 188 | Cep | OC | 8.1 | 14 | |
| 2 | 40 | Cep | PN | 11.6 | 0.6 | |
| 3 | 4236 | Dra | SbG | 9.7 | 21 x 7 | |
| 4 | 7023 | Cep | BN | 6.8 | 18 x 18 | Reflection Nebula |
| 5 | IC 342 | Cam | SBcG | 9.2 | 18 x 17 | |
| 6 | 6543 | Dra | PN | 8.8 | 0.3/5.8 | Cat’s Eye Nebula |
| 7 | 2403 | Cam | ScG | 8.9 | 18 x 10 | |
| 8 | 559 | Cas | OC | 9.5 | 4 | |
| 9 | Sh2-155 | Cep | BN | 7.7 | 50 x 10 | Cave Nebula |
| 10 | 663 | Cas | OC | 7.1 | 16 | |
| 11 | 7635 | Cas | BN | 7.0 | 15 x 8 | Bubble Nebula |
| 12 | 6946 | Cep | ScG | 9.7 | 11 x 9 | |
| 13 | 457 | Cas | OC | 6.4 | 13 | Phi Cas Cluster |
| 14 | 869/ 884 |
Per | OC double | 4.3 | 30 and 30 | Sword Handle |
| 15 | 6826 | Cyg | PN | 9.8 | 0.5/2.3 | Blinking Nebula |
| 16 | 7243 | Lac | OC | 6.4 | 21 | |
| 17 | 147 | Cas | dE4G | 9.3 | 13 x 8 | |
| 18 | 185 | Cas | dE0G | 9.2 | 12 x 9 | |
| 19 | IC 5146 | Cyg | BN | 10.0 | 12 x 12 | Cocoon Neb |
| 20 | 7000 | Cyg | BN | 6.0 | 120 x 100 | Nort American Nebula |
| 21 | 4449 | CVn | IG | 9.4 | 5 x 3 | |
| 22 | 7662 | And | PN | 9.2 | 0.3/2.2 | |
| 23 | 891 | And | SbG | 9.9 | 14 x 2 | |
| 24 | 1275 | Per | Seyfert G | 11.6 | 2.6 x 1 | Per A radio source |
| 25 | 2419 | Lyn | GC | 10.4 | 4.1 | |
| 26 | 4244 | CVn | SG | 10.6 | 16 x 2.5 | |
| 27 | 6888 | Cyg | BN | 7.5 | 20 x 10 | Crescent Nebula |
| 28 | 752 | And | OC | 5.7 | 50 | |
| 29 | 5005 | CVn | SbG | 9.8 | 5.4 x 2 | |
| 30 | 7331 | Peg | SbG | 9.5 | 11 x 4 | |
| 31 | IC 405 | Aur | BN | 6.0 | 30 x 19 | Flaming Star Nebula |
| 32 | 4631 | CVn | ScG | 9.3 | 15 x 3 | |
| 33 | 6992/5 | Cyg | SN | — | 60 x 8 | East Veil Nebula |
| 34 | 6960 | Cyg | SN | — | 70 x 6 | West Veil Nebula |
| 35 | 4889 | Com | E4G | 11.4 | 3 x 2 | Brightest in cluster |
| 36 | 4559 | Com | ScG | 9.8 | 10 x 4 | |
| 37 | 6885 | Vul | OC | 5.7 | 7 | |
| 38 | 4565 | Com | SbG | 9.6 | 16 x 3 | |
| 39 | 2392 | Gem | PN | 9.9 | 0.2/0.7 | Eskimo Nebula |
| 40 | 3626 | Leo | SbG | 10.9 | 3 x 2 | |
| 41 | — | Tau | OC | 1.0 | 330 | Hyades |
| 42 | 7006 | Del | GC | 10.6 | 2.8 | Very distant globular |
| 43 | 7814 | Peg | SbG | 10.5 | 6 x 2 | |
| 44 | 7479 | Peg | SBbG | 11.0 | 4 x 3 | |
| 45 | 5248 | Boo | ScG | 10.2 | 6 x 4 | |
| 46 | 2261 | Mon | BN | 10.0 | 2 x 1 | Hubble’s Variable Neb. |
| 47 | 6934 | Del | GC | 8.9 | 5.9 | |
| 48 | 2775 | Can | SaG | 10.3 | 4.5 x 3 | |
| 49 | 2237-9 | Mon | BN | — | 80 x 60 | Rosette Nebula |
| 50 | 2244 | Mon | OC | 4.8 | 24 | |
| 51 | IC 1613 | Cet | IG | 9.0 | 12 x 11 | |
| 52 | 4697 | Vir | E4G | 9.3 | 6 x 3 | |
| 53 | 3115 | Sex | E6G | 9.1 | 8 x 3 | Spindle Galaxy |
| 54 | 2506 | Mon | OC | 7.6 | 7 | |
| 55 | 7009 | Aqr | PN | 8.3 | 2.5/1 | Saturn Nebula |
| 56 | 246 | Cet | PN | 8.0 | 3.8 | |
| 57 | 6822 | Sgr | IG | 9.3 | 10 x 9 | Barnard’s Galaxy |
| 58 | 2360 | CMa | OC | 7.2 | 13 | |
| 59 | 3242 | Hya | PN | 8.6 | 0.3/21 | Ghost of Jupiter |
| 60 | 4038 | Crv | ScG | 11.3 | 2.6 x 1.8 | The Antennae |
| 61 | 4039 | Crv | ScG | 13.0 | 3.2 x 2.2 | The Antennae |
| 62 | 247 | Cet | SG | 8.9 | 20 x 7 | |
| 63 | 7293 | Aqr | PN | 6.5 | 13 | Helix Nebula |
| 64 | 2362 | CMa | OC | 4.1 | 8 | Tau CMa Cluster |
| 65 | 253 | Scl | SG | 7.1 | 25 x 7 | Sculptor Galaxy |
| 66 | 5694 | Hya | GC | 10.2 | 3.6 | |
| 67 | 1097 | For | SBbG | 9.2 | 9 x 6 | |
| 68 | 6729 | CrA | BN | 9.7 | 1.0 | R CrA Nebula |
| 69 | 6302 | Sco | PN | 12.8 | 0.8 | Bug Nebula |
| 70 | 300 | Scl | SdG | 8.1 | 20 x 13 | |
| 71 | 2477 | Pup | OC | 5.8 | 27 | |
| 72 | 55 | Scl | SBG | 8.2 | 32 x 6 | Brightest in Scl Cluster |
| 73 | 1851 | Col | GC | 7.3 | 11 | |
| 74 | 3132 | Vel | PN | 8.2 | 0.8 | |
| 75 | 6124 | Sco | OC | 5.8 | 29 | |
| 76 | 6231 | Sco | OC | 2.6 | 15 | |
| 77 | 5128 | Cen | Peculiar Galaxy | 7.0 | 18 x 14 | Cen A radio source |
| 78 | 6541 | CrA | GC | 6.6 | 13 | |
| 79 | 3201 | Vel | GC | 6.7 | 18 | |
| 80 | 5139 | Cen | GC | 3.6 | 36 | Omega Centauri |
| 81 | 6352 | Ara | GC | 8.1 | 7 | |
| 82 | 6193 | Ara | OC | 5.2 | 15 | |
| 83 | 4945 | Cen | SBcG | 9.5 | 20 x 4 | |
| 84 | 5286 | Cen | GC | 7.6 | 9 | |
| 85 | IC 2391 | Vel | OC | 2.5 | 50 | o (Omicron) Vel Cluster |
| 86 | 6397 | Ara | GC | 5.6 | 26 | |
| 87 | 1261 | Hor | GC | 8.4 | 7 | |
| 88 | 5823 | Cir | OC | 7.9 | 10 | |
| 89 | 6087 | Nor | OC | 5.4 | 12 | S Nor Cluster |
| 90 | 2867 | Car | PN | 9.7 | 0.2 | |
| 91 | 3532 | Car | OC | 3.0 | 55 | |
| 92 | 3372 | Car | BN | 6.2 | 120 x 120 | Eta Carinae Nebula |
| 93 | 6752 | Pav | GC | 5.4 | 20 | |
| 94 | 4755 | Cru | OC | 4.2 | 10 | Jewel Box Cluster |
| 95 | 6025 | TrA | OC | 5.1 | 12 | |
| 96 | 2516 | Car | OC | 3.8 | 30 | |
| 97 | 3766 | Cen | OC | 5.3 | 12 | |
| 98 | 4609 | Cru | OC | 6.9 | 5 | |
| 99 | — | Cru | DN | — | 400 x 300 | Coal Sack |
| 100 | IC 2944 | Cen | OC | 4.5 | 15 | – (Lambda) Cen Cluster |
| 101 | 6744 | Pav | SBbG | 9.0 | 16 x 10 | |
| 102 | IC 2602 | Car | OC | 1.9 | 50 | ÷ (Theta) Car Cluster |
| 103 | 2070 | Dor | BN | 1.0 | 40 x 25 | Tarantula Neb. in LMC |
| 104 | 362 | Tuc | GC | 6.6 | 13 | |
| 105 | 4833 | Mus | GC | 7.3 | 14 | |
| 106 | 104 | Tuc | GC | 4.0 | 31 | 47 Tucanae |
| 107 | 6101 | Aps | GC | 9.3 | 11 | |
| 108 | 4372 | Mus | GC | 7.8 | 19 | |
| 109 | 3195 | Cha | PN | — | 0.6 |
BN = Bright nebula
GC = Globular cluster
OC = Open cluster
EG = Elliptical (type) galaxy
DN = Dark nebula
IG = Irregular galaxy
PN = Planetary nebula
SN = Supernova remnant
SG = Spiral (type) galaxy
Rosette Nebula C49 and NGC 2244
Had to discard the L channel as underexposed.
| Object ID | C49 Rosette Nebula and NGC 2244 |
| Details | Nebula and Open Cluster, Monoceros Mag. 9 Size 1.3 degrees |
| Telescope | C80ED @ f5.6 (x0.75 reducer) |
| Camera | Atik 460EX (-15C) and SX filter wheel IDAS P2 LPR filter |
| Exposure(s) | RGB 10x60s each 2×2 darks, no flats or bias |
| Capture | APT, finder guiding with PHD2 |
| Processing | Stacked in Nebulosity, processed in Photoshop and Lightroom |
Double Cluster in Perseus NGC 869 and 884
First image using the C80ED for a long time.
| Object ID | Caldwell 14, NGC 869 and 884 |
| Details | Open Clusters, Perseus |
| Date/Time | 2017-12-10 19:41 – 20:01 UT |
| Telescope | C80ED @ f7.5 IDAS P2 LPR filter |
| Camera | Canon 600D |
| Exposure(s) | 30x30s lights, 10x30s darks ISO 1600 |
| Capture | APT, unguided |
| Processing | Stacked in Nebulosity, processed in Photoshop and Lightroom |
NGC 6960 Western Veil (C34) Reprocessed 2017-03-28
Supernova remnant, Cygnus (“Witch’s Broom”)
Caldwell 34, Finest NGC 99a, SAC110 44
Size 70’x6′
2011-09-20
200mm f5 Newtonian MPCC Guided
Canon EOS 350D MODDED, Astronomik CLS
5x240s 15x180s, darks, flats, ISO 800
Captured in APT
Processed in Nebulosity and PS CS5
First light with the modded 350D. So much easier to capture and process the nebulosity.
Reprocessed in 2017-03-28 with Adobe Lightroom.
Original image:
NGC 6992/6995 Eastern Veil (C33) – reprocessed
Supernova remnant, Cygnus
Caldwell 33, Finest NGC 99b, SAC110 45
Size 60’x8′
2011-08-24
200mm f5 Newtonian MPCC Guided
Canon EOS 350D, Astronomik CLS
5x240s 20x180s, darks, flats, ISO 800
Captured in APT
Processed in Nebulosity and PS CS5
2017-02-21 Re-processed in Lightroom CC
NGC 6995 is the irregularly shaped nebulosity in the left of the image, and NGC 6992 is the curved arc in the right of the image.
An incredibly rare and clear night with the Milky Way easily visible.
Original image:
IC 5146 Cocoon Nebula (C19) #2
Reflection/emission nebula, Cygnus
Caldwell 19, Finest NGC 99b, SAC110 45
Mag. 10, Size 12’x12′
2015-09-10 / 2015-10-01
200mm f8 RC, piggyback guiding C80ED
L 10×300 2×2, RGB 8×240 3×3
BPM no flats
Atik 460EX (-10C), LRGB filters, IDAS P2 LPR filter
Captured in APT, Processed in Nebulosity3, PS CC, LightRoom
Second attempt at this with the 460EX. 2 nights of data. Meridian flip reduced time.
This is the first time I’ve tried final processing and touch up in Adobe LightRoom.
NGC 7635 Bubble Nebula (C11) with 460EX
First real LRGB image with the new 460EX. Still need to improve processing. I have some Ha from previous night to add in too but not sure how to do it.
Emission nebula, Cassiopeia
Mag. 10 Size 15’x8′
2014-10-12
200mm f5 newtonian, piggyback guiding C80ED
L: 5×180 (1×1) RGB 5×120 (2×2) each
Atik 460EX (-15C), LRGB filters, MPCC, Lumicon DS filter
Captured in APT, Processed in Nebulosity, PS CC