Caldwell Catalogue

/Caldwell Catalogue
Caldwell Catalogue 2018-09-22T12:43:47+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/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

Bubble nebula project 2 (NGC 7635)

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

Object ID NGC 7635 Bubble nebula (C11)
Mag. 10, Size 15’x8′
H II region emission nebula
Cassiopeia
Details 2018-09-23 21:15-23:07 UT
Bright moonlight
Telescope 200mm f5 Newtonian, MPCC
IDAS P2 LPR filter
Guided
Camera Atik 460EX, Baader 7nm Ha filter
Exposure(s) 18 x 300s
darks, flats
Capture APT
Processing Nebulosity 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 ID NGC 7635 Bubble nebula (C11)
Mag. 10, Size 15’x8′
H II region emission nebula
Cassiopeia
Details 2018-09-22 21:40-21:45 UT
Bright moonlight
Telescope 200mm f5 Newtonian, MPCC
IDAS P2 LPR filter
Guided
Camera Atik 460EX, Baader 7nm Ha filter
Exposure(s) 2 x 300s
darks, flats
Capture APT
Processing Nebulosity 4, Photoshop
23 September 2018|Caldwell, Nebula, News, NGC Autumn|

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
14 February 2018|Caldwell, Nebula, News, NGC Winter|

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

 

10 December 2017|Caldwell, Deep Sky, News, NGC Winter, Open Cluster|

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:

30 March 2017|Caldwell, Finest NGC, Nebula, News, NGC Summer|

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:

21 February 2017|Caldwell, Finest NGC, Nebula, News, NGC Summer|