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 2602CarOC1.950÷ (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

Iris Nebula NGC 7023 / C4

Bringing out the all the dusty, dark material leaves me with a horrible background.

Object IDIris Nebula
NGC 7023 / C4
Details2020-09-19
Mag. 6.8
Telescope250mm f4.8 Newtonian, MPCC
CameraQHY168C @15°C
2/20 gain/offset
IDAS P2
Exposure(s)28x180s 10/50
darks, flats, bias
CaptureAPT
ProcessingAPP, Photoshop

The Iris Nebula is a bright reflection nebula in the constellation Cepheus. The designation NGC 7023 refers to the open cluster within the larger reflection nebula designated LBN 487. The nebula, which shines at magnitude +6.8, is illuminated by a magnitude +7.4 star designated SAO 19158.
Wikipedia

23 September 2020|Caldwell, Nebula, News, NGC Summer|

NGC188 (C1)

Never noticed this one before. Very close to the pole so easy guiding as nothing moves very much round there.

Object IDNGC188, Caldwell 1
Open Cluster, Cepheus
Mag. 10
Size 11′
Details2020-04-06 22:42 UT
Telescope250mm f4.8 OO Newtonian
CameraATIK 460EX @-15C
Exposure(s)3x180s 1×1 TR, 2x180s 1×1 TG, TB
Darks, flats, bias
CaptureAPT
ProcessingAPP, Photoshop
7 April 2020|Caldwell, News, NGC Winter, Open Cluster|

Cygnus Wall NGC 700 (Caldwell 20)

Part of the North America nebula – the Central America part – seems to be known as the Cygnus Wall. Can only fit a small part of this object in my FOV.

Object IDNGC 7000, C20
DetailsMag. 4
Size: 120′ x 100′
Telescope250mm f4.8 Newtonian
CameraAtik 460EX, Baader filters
-15C
Exposure(s)10x300s ea in Ha and OIII
CaptureAPT
ProcessingAPP, Photoshop
Mapped HOO and moved to the blue end
21 September 2019|Caldwell, Narrowband, Nebula, News, NGC Summer|

Cave Nebula Sh2-155 / Caldwell 9

Sh2-155 is a diffuse nebula in the constellation Cepheus, within a larger nebula complex containing emission, reflection, and dark nebulosity. It is widely known as the Cave Nebula. Sh2 designation because it’s part of the Sharpless Catalog (1959) of 312 HII regions. About 2400 light years from Earth and a stellar nursery.

Narrowband filters really do cut through the murky, light polluted skies of Edinburgh so well. Obviously false colour, has to be for narrowband, but can’t decide which is the best so two different tone mappings: SII Ha OIII -> RGB and Ha OIII SII

Object IDCave Nebula
Sh2-155 / C9
DetailsCepheus
Mag. 7.7, 50′ x 30′
Telescope250mm f4.8 Newtonian
CameraAtik 460EX
Exposure(s)10 x 180s each Ha OIII SII 2×2
CaptureAPT
ProcessingDSS, Nebulosity, Photoshop
9 September 2019|Caldwell, Narrowband, Nebula, News, NGC Summer|

Iris Nebula NGC 7023 / Caldwell 4

Been meaning to do this one for ages. Not easy because the background gas and dust can be easily lost in the light pollution and noise.

“The Iris Nebula, also known as NGC 7023 and Caldwell 4, is a bright reflection nebula and Caldwell object in the constellation Cepheus. NGC 7023 is actually the cluster within the nebula, LBN 487, and the nebula is lit by a magnitude +6.8 star, SAO 19158.”
Wikipedia

Object IDIris Nebula
NGC 7023 / C4
DetailsCepheus
Mag. 6.8, 18′ x 18′
Telescope250mm f4.8 Newtonian
CameraAtik 460EX
Exposure(s)10 x 180s each RGB 1×1
CaptureAPT
ProcessingNebulosity, Photoshop
29 August 2019|Caldwell, Nebula, News, NGC Summer|