Caldwell Catalogue

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Caldwell Catalogue2020-04-07T21:29:19+00:00

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.”
Wikipedia
View all Caldwell objects

C#NGC/ICCon.TypeMag.Size ()Description
1188CepOC8.114
240CepPN11.60.6
34236DraSbG9.721 x 7
47023CepBN6.818 x 18Reflection Nebula
5IC 342CamSBcG9.218 x 17
66543DraPN8.80.3/5.8Cat’s Eye Nebula
72403CamScG8.918 x 10
8559CasOC9.54
9Sh2-155CepBN7.750 x 10Cave Nebula
10663CasOC7.116
117635CasBN7.015 x 8Bubble Nebula
126946CepScG9.711 x 9
13457CasOC6.413Phi Cas Cluster
14869/
884
PerOC double4.330 and 30Sword Handle
156826CygPN9.80.5/2.3Blinking Nebula
167243LacOC6.421
17147CasdE4G9.313 x 8
18185CasdE0G9.212 x 9
19IC 5146CygBN10.012 x 12Cocoon Neb
207000CygBN6.0120 x 100North American Nebula
214449CVnIG9.45 x 3
227662AndPN9.20.3/2.2
23891AndSbG9.914 x 2
241275PerSeyfert G11.62.6 x 1Per A radio source
252419LynGC10.44.1
264244CVnSG10.616 x 2.5
276888CygBN7.520 x 10Crescent Nebula
28752AndOC5.750
295005CVnSbG9.85.4 x 2
307331PegSbG9.511 x 4
31IC 405AurBN6.030 x 19Flaming Star Nebula
324631CVnScG9.315 x 3
336992/5CygSN60 x 8East Veil Nebula
346960CygSN70 x 6West Veil Nebula
354889ComE4G11.43 x 2Brightest in cluster
364559ComScG9.810 x 4
376885VulOC5.77
384565ComSbG9.616 x 3
392392GemPN9.90.2/0.7Eskimo Nebula
403626LeoSbG10.93 x 2
41TauOC1.0330Hyades
427006DelGC10.62.8Very distant globular
437814PegSbG10.56 x 2
447479PegSBbG11.04 x 3
455248BooScG10.26 x 4
462261MonBN10.02 x 1Hubble’s Variable Neb.
476934DelGC8.95.9
482775CanSaG10.34.5 x 3
492237-9MonBN80 x 60Rosette Nebula
502244MonOC4.824
51IC 1613CetIG9.012 x 11
524697VirE4G9.36 x 3
533115SexE6G9.18 x 3Spindle Galaxy
542506MonOC7.67
557009AqrPN8.32.5/1Saturn Nebula
56246CetPN8.03.8
576822SgrIG9.310 x 9Barnard’s Galaxy
582360CMaOC7.213
593242HyaPN8.60.3/21Ghost of Jupiter
604038CrvScG11.32.6 x 1.8The Antennae
614039CrvScG13.03.2 x 2.2The Antennae
62247CetSG8.920 x 7
637293AqrPN6.513Helix Nebula
642362CMaOC4.18Tau CMa Cluster
65253SclSG7.125 x 7Sculptor Galaxy
665694HyaGC10.23.6
671097ForSBbG9.29 x 6
686729CrABN9.71.0R CrA Nebula
696302ScoPN12.80.8Bug Nebula
70300SclSdG8.120 x 13
712477PupOC5.827
7255SclSBG8.232 x 6Brightest in Scl Cluster
731851ColGC7.311
743132VelPN8.20.8
756124ScoOC5.829
766231ScoOC2.615
775128CenPeculiar Galaxy7.018 x 14Cen A radio source
786541CrAGC6.613
793201VelGC6.718
805139CenGC3.636Omega Centauri
816352AraGC8.17
826193AraOC5.215
834945CenSBcG9.520 x 4
845286CenGC7.69
85IC 2391VelOC2.550o (Omicron) Vel Cluster
866397AraGC5.626
871261HorGC8.47
885823CirOC7.910
896087NorOC5.412S Nor Cluster
902867CarPN9.70.2
913532CarOC3.055
923372CarBN6.2120 x 120Eta Carinae Nebula
936752PavGC5.420
944755CruOC4.210Jewel Box Cluster
956025TrAOC5.112
962516CarOC3.830
973766CenOC5.312
984609CruOC6.95
99CruDN400 x 300Coal Sack
100IC 2944CenOC4.515– (Lambda) Cen Cluster
1016744PavSBbG9.016 x 10
102IC 2602CarOC1.950รท (Theta) Car Cluster
1032070DorBN1.040 x 25Tarantula Neb. in LMC
104362TucGC6.613
1054833MusGC7.314
106104TucGC4.03147 Tucanae
1076101ApsGC9.311
1084372MusGC7.819
1093195ChaPN0.6

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

Cocoon nebula IC5146 / Caldwell 19 RGB

“IC 5146 (also Caldwell 19, Sh 2-125, and the Cocoon Nebula) is a reflection/emission nebula and Caldwell object in the constellation Cygnus. The NGC description refers to IC 5146 as a cluster of 9.5 mag stars involved in a bright and dark nebula.”
Wikipedia

Object IDCocoon Nebula
IC 5146 / C19
DetailsCygnus
Mag. 7.2, 12′
Telescope250mm f4.8 Newtonian
CameraAtik 460EX
Exposure(s)9 or 10 x 180s each RGB 1×1
CaptureAPT
ProcessingNebulosity, Photoshop
28 August 2019|Caldwell, Nebula, News, NGC Summer|

NGC 6888 / Caldwell 27 Crescent Nebula SHO

A new one for me

Object IDNGC 6888
Crescent Nebula
DetailsCygnus
Mag. 7.4, 18′ x 12′
Telescope250mm f4.8 Newtonian
CameraAtik 460EX
Exposure(s)7 x 300s each Ha, OIII, SII
CaptureAPT
ProcessingDSS, Nebulosity, Photoshop
Mapped SII, Ha, OIII -> RGB
28 August 2019|Caldwell, Narrowband, Nebula, News, NGC Summer|

Cygnus Wall – red channel only

After gathering HOYS-CAPS data thought I’d give this a quick go in red channel only.

Object IDCygnus Wall
Details“Mexico and Central American” part of North America Nebula
Telescope250mm f4.8 Newtonian
CameraAtik 460EX
IDAS P2 LP filter
8x180s 2×2, darks, bias, flats
-11C
CaptureAPT
ProcessingNebulosity, Photoshop
23 July 2019|Caldwell, Nebula, News, NGC Summer|

NGC4565 / Caldwell 38 Spindle Galaxy

Processed 3 different ways – give different results, not sure which I like best. Still too noisy – need many more exposures.
Interesting edge-on spiral galaxy in Coma Berenices, surprisingly large (14.9′ x 2′) but faint (9.60 but surface brightness 13.3). It is actually intrinsically more luminous than the Andromeda Galaxy. First seen by William Herschel in 1785. Also visible lower right is NGC 4562.

Object IDNGC 4565, Caldwell 38 Spindle Galaxy
Details2019-03-31
Telescope203mm RC8 f8
CameraAtik 460Ex @-20C
Badder RGB filters
IDAS P2 LP filter
Exposure(s)10x240s 2×2 RGB
Darks
CaptureAPT
ProcessingNebulosity, Photoshop
1 April 2019|Caldwell, Galaxy, News|

Bubble nebula project 2 (NGC 7635)

Added 18 frames of Ha. Much more detail and less noise.

Object IDNGC 7635 Bubble nebula (C11)
Mag. 10, Size 15’x8′
H II region emission nebula
Cassiopeia
Details2018-09-23 21:15-23:07 UT
Bright moonlight
Telescope200mm f5 Newtonian, MPCC
IDAS P2 LPR filter
Guided
CameraAtik 460EX, Baader 7nm Ha filter
Exposure(s)18 x 300s
darks, flats
CaptureAPT
ProcessingNebulosity 4, Photoshop

I did take some RGB colour but as you can see below there is a huge dust mark in it. Normally not a problem as flats will remove it. But when I went to create flats, the dust had disappeared so very difficult to remove. Unless it’s not dust but an out of focus reflection of the bright star? If it is I’ve never seen anything like it in my images before.

24 September 2018|Caldwell, Nebula, News, NGC Autumn|

Bubble nebula project (NGC 7635)

One of my favourite objects. Trying to do this over a series of nights. Ha first of all then add colour channels. Only 2x300s exposures in Ha so far.

Object IDNGC 7635 Bubble nebula (C11)
Mag. 10, Size 15’x8′
H II region emission nebula
Cassiopeia
Details2018-09-22 21:40-21:45 UT
Bright moonlight
Telescope200mm f5 Newtonian, MPCC
IDAS P2 LPR filter
Guided
CameraAtik 460EX, Baader 7nm Ha filter
Exposure(s)2 x 300s
darks, flats
CaptureAPT
ProcessingNebulosity 4, Photoshop
23 September 2018|Caldwell, Nebula, News, NGC Autumn|