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Listing of useful items
IndexFAQ index:
The Messier list
MESSIER CATALOGUE
(Epoch 2000.0)
Compiled by Darrell W. Green [72406,1736]
MESS NGC CON CL R.A. DEC MAGv DIAM.(') BUR REMARKS
==== ====== === == ====== ===== ==== ======== === =========================
M 1 1952 Tau PN 0534.5 +2201 8.2 6x4 !! SNR (1054) - Crab Nebula
M 2 7089 Aqr GC 2133.5 -0049 6.5 13 !! II
M 3 5272 CVn GC 1342.2 +2823 6.4 16 !!! VI - superb object
M 4 6121 Sco GC 1623.6 -2632 5.9 26 * IX
M 5 5904 Ser GC 1518.6 +0205 5.8 17 !! V - superb cluster
M 6 6405 Sco OC 1740.1 -3213 4.2 15 !! n: 80 - Butterfly Cluster
M 7 6475 Sco OC 1753.9 -3449 3.3 80 !! nmbr:80-fine naked-eye OC
M 8 6523 Sgr DN 1803.8 -2423 6.8 80x40 !!! spec: O7e - Lagoon Nebula
M 9 6333 Oph GC 1719.2 -1831 7.9 2.4 * VIII
M 10 6254 Oph GC 1657.1 -0406 6.6 8.2 ! VII
M 11 6705 Sct OC 1851.1 -0616 5.8 14 ! n:200 - Wild Duck Cluster
M 12 6218 Oph GC 1647.2 -0157 6.6 9.3 !! IX
M 13 6205 Her GC 1641.7 +3628 5.9 10 !! V - Hercules Cluster
M 14 6402 Oph GC 1737.6 -0315 7.6 3 *
M 15 7078 Peg GC 2130.0 +1210 6.4 7.4 ! IV - fine object
M 16 6611 Ser DN 1818.8 -1347 6.4 25 !! neb and clust- Eagle Nebula
M 17 6618 Sgr DN 1820.8 -1611 7.5 46x37 !! Swan or Omega Nebula
M 18 6613 Sgr OC 1819.9 -1708 6.9 9 * number: 20
M 19 6273 Oph GC 1702.6 -2616 7.2 4.3 * VIII
M 20 6514 Sgr DN 1802.6 -2302 9.0 29x27 !! spec: O7 - Trifid Nebula
M 21 6531 Sgr OC 1804.6 -2230 5.9 13 * number: 70 - M20 in field
M 22 6656 Sgr GC 1836.4 -2354 5.1 17.3 !! VII - one of finest GCs
M 23 6494 Sgr OC 1756.8 -1901 5.5 27 * number: 150
M 24 6603 Sgr OC 1816.9 -1829 4.6 4 * number: 50 - star cloud
M 25 IC4725 Sgr OC 1831.6 -1915 4.6 32 * number: 30 - open cloud
M 26 6694 Sct OC 1845.2 -0924 8.0 15 * number: 30
M 27 6853 Vul PN 1959.6 +2243 7.6 8x4 !! Dumbbell Nebula
M 28 6626 Sgr GC 1824.5 -2452 6.9 6 ! IV
M 29 6913 Cyg OC 2023.9 +3832 6.6 7 * number: 50
M 30 7099 Cap GC 2140.4 -2311 7.5 5.7 ! V
M 31 224 And SG 0042.7 +4116 4.8 160x40 !!! Sb - Andromeda Galaxy
M 32 221 And EG 0042.7 +4052 8.7 3.6x3.1 * E0 - companion of M31
M 33 598 Tri SG 0133.9 +3039 6.3 60x35 !! Sc - Pinwheel Galaxy
M 34 1039 Per OC 0242.0 +4247 5.5 35 * number: 60
M 35 2168 Gem OC 0608.9 +2420 5.3 28 * number: 200
M 36 1960 Aur OC 0536.1 +3408 6.0 12 * number: 60
M 37 2099 Aur OC 0552.4 +3233 5.6 24 ! number: 150
M 38 1912 Aur OC 0528.7 +3550 6.4 21 * number: 100
M 39 7092 Cyg OC 2132.2 +4826 4.6 32 * number: 30
M 40 WNC 4 UMa DS 1222.4 +5805 9.1 50" * Winnnecke 4 - sep. 50"
M 41 2287 CMa OC 0647.0 -2044 4.6 38 * number: 80
M 42 1976 Ori DN 0535.4 -0527 2.9 66x60 !!! Great Orion Nebula
M 43 1982 Ori DN 0535.6 -0516 6.9 20x15 * detached portion of M42
M 44 2632 Cnc OC 0840.1 +1959 3.1 95 !! Praesepe - Beehive Clustr
M 45 Tau OC 0347.0 +2407 1.2 110 * nmber: 130 - The Pleiades
M 46 2437 Pup OC 0741.8 -1449 6.10 27 ! n:100 - NGC 2438 in field
M 47 2422 Pup OC 0736.6 -1430 4.5 30 * number: 30
M 48 2548 Hya OC 0813.8 -0548 5.8 54 * number: 80
M 49 4472 Vir EG 1229.8 +0800 8.4 4.0x3.4 * E4
M 50 2323 Mon OC 0703.2 -0820 5.9 10.0x5.5 * number: 80
M 51 5194 CVn SG 1329.9 +4712 8.4 10.0x5.5 !! Sc - Whirlpool Galaxy
M 52 7654 Cas OC 2324.2 +6135 6.9 13 * number: 100
M 53 5024 Com GC 1312.9 +1810 7.7 3.3 * V
M 54 6715 Sgr GC 1855.1 -3029 7.7 6 * III
M 55 6809 Sgr GC 1940.0 -3058 7.0 15 * XI
M 56 6779 Lyr GC 1916.6 +3011 8.3 1.8 * X
M 57 6720 Lyr PN 1853.6 +3302 9.3 1.3x1 !! cnt str:15 - Ring Nebula
M 58 4579 Vir SG 1237.7 +1149 9.8 4.0x3.5 * Sb - fine compact spiral
M 59 4621 Vir EG 1242.0 +1139 9.8 2.0x1.8 * E3
M 60 4649 Vir EG 1243.7 +1133 8.8 3.0x2.5 * E1 - NGC 4647 in field
M 61 4303 Vir SG 1221.9 +0428 9.7 5.7x5.5 * Sc - large face-on spiral
M 62 6266 Oph GC 1701.2 -3007 6.6 4.3 * IV - Burnham's under Sco
M 63 5055 CVn SG 1315.8 +4202 8.6 10x5 * Sb - Sunflower Nebula
M 64 4826 Com SG 1256.7 +2141 8.5 7.8x1.5 ! Sb - Black-Eye Galaxy
M 65 3623 Leo SG 1118.9 +1305 9.3 8.0x2.5 * Sb -M66, NGC3628 in field
M 66 3627 Leo SG 1120.2 +1259 9.0 8.0x2.5 * Sb -M65, NGC3628 in field
M 67 2682 Cnc OC 0850.4 +1149 6.9 30 ! nmbr:200 - interesting OC
M 68 4590 Hya GC 1239.5 -2645 8.2 2.8 * X
M 69 6637 Sgr GC 1831.4 -3221 7.7 2.5 * V
M 70 6681 Sgr GC 1843.2 -3218 8.1 4 * V
M 71 6838 Sge GC 1953.8 +1847 8.3 6.1 * class not certain
M 72 6981 Aqr GC 2053.5 -1232 9.4 2.0 * IX
M 73 6994 Aqr OC 2058.9 -1238 9.0 2.8 * asterism of 4 stars
M 74 628 Psc SG 0136.7 +1547 9.2 9.0x9.0 * Sc - fine face-on spiral
M 75 6864 Sgr GC 2006.1 -2155 8.6 1.9 * I - near Cap border
M 76 650 Per PN 0142.4 +5134 12.2 140x70 * cnt str:17-Little Dumbell
M 77 1068 Cet SG 0242.7 -0001 8.9 6x5 * Sbp - Seyfert glx.(3C 71)
M 78 2068 Ori DN 0546.7 +0003 10.5 8x6 * spec: B8 - comet shaped
M 79 1904 Lep GC 0524.5 -2433 8.4 3.2 * V
M 80 6093 Sco GC 1617.0 -2259 7.2 3.3 * II -incl Nova T Sco(1860)
M 81 3031 UMa SG 0955.6 +6904 6.9 18x10 ! Sb - fine spiral
M 82 3034 UMa IG 0955.8 +6941 8.4 8x3 ! Pec - fine pair with M81
M 83 5236 Hya SG 1337.0 -2952 8.2 10x8 ! Sc
M 84 4374 Vir EG 1225.1 +1253 9.3 2.0x1.8 * E1 - center Virgo Cluster
M 85 4382 Com EG 1225.4 +1811 9.3 2.1x1.7 * Ep
M 86 4406 Vir EG 1226.2 +1257 9.2 3x2 * E3 - center Virgo Cluster
M 87 4486 Vir EG 1230.8 +1224 8.6 3x3 * E1 - X-ray and radio source
M 88 4501 Com SG 1232.0 +1425 9.5 5.5x2.4 * Sb - multiple-arm spiral
M 89 4552 Vir EG 1235.7 +1233 9.8 2x2 * E0 - bright, round
M 90 4569 Vir SG 1236.8 +1310 9.5 7.0x2.5 * Sb - well formed oval
M 91 4548 Com SG 1235.4 +1430 10.2 3.7x3.2 * SBb- barred spiral galaxy
M 92 6341 Her GC 1717.1 +4308 6.5 8.3 * IV
M 93 2447 Pup OC 0744.6 -2352 6.2 22 * number: 80
M 94 4736 CVn SG 1250.9 +4107 8.2 5.0x3.5 * Sbp
M 95 3351 Leo SG 1044.0 +1142 9.7 6.1x3.9 * S(B)b - theta structure
M 96 3368 Leo SG 1046.8 +1149 9.1 5x4 * Sbp - pair with M95
M 97 3587 UMa PN 1114.8 +5501 12.0 3.4x3.0 ! cnt str m:14 - Owl Nebula
M 98 4192 Com SG 1213.8 +1454 10.1 8.4x1.9 * Sb-knotty, bright spindle
M 99 4254 Com SG 1218.8 +1425 9.8 4.6x3.9 ! Sc
M100 4321 Com SG 1222.9 +1549 9.4 5.3x4.5 ! Sc - fine spiral
M101 5457 UMa SG 1403.2 +5421 7.7 22x20 * Sc-splendid large face-on
M102 5457 UMa SG 1403.2 +5421 7.7 22x20 * Sc - Same as M101
M103 581 Cas OC 0133.2 +6042 7.4 5 * nmbr: 25 -arrowhead shape
M104 4594 Vir SG 1240.0 -1137 8.3 7.0x1.5 ! Sb - Sombrero Galaxy
M105 3379 Leo EG 1047.8 +1235 9.2 2.2x2.0 E1 -group with 3384, 3389
M106 4258 CVn SG 1219.0 +4718 8.3 18.2x7.0 ! Sbp
M107 6171 Oph GC 1632.5 -1303 8.1 2.2 X
M108 3556 UMa SG 1111.5 +5540 10.1 7.7x1.3 * Sc - edge-on/M97 in field
M109 3992 UMa SG 1157.6 +5323 9.8 6.2x3.5 SBb -barred spiral galaxy
M110 205 And EG 0040.4 +4141 9.4 8.0x3.0 E6 - companion of M31
Go to: [home page] [top of this page] [index]
Deep Sky Web Sites and PC software LinksThe list of Deep Sky Objects has been removed from this Section In it's place I offer two more comprehensive Web sites on the subject of Deep Sky Observing. The first is the Saguaro Astronomy Club (SAC) on-line news letter. It contains many fine article on observing. Their URL is on the Home Page. The second is a newer site I have discovered recently. A very useful site for the observer to find, download, observing list and reports of NGC and IC catalogs. The next three sites have been found recently, the Hawaii Astro site is one of my favorites for deep sky amd more. Vargas's links to many of the on-line catalogs used by the astronomical community. To avoid listing the many astronomical software I refer to the information complied on the SEDS web page. Within each are many more Links to other sites. Good hunting.
Go to:
How to estimate the magnitude of a starEstimating the Magnitude of a Star FRACTIONAL METHOD Two comparison stars are choosen, one a little brigther than the variable and the other slightly fainter. The brightness of the variable is then mentally estimated as a fraction of the interval betwen the two comparison stars. To do this , the observer divides the interval into a equal number of parts, for example 2, 3, 4, 5 or 10 and estimate the number of these parts by which the variable is fainter one star and brighter than the other. There is no need at this stage to know the magnitudes of the comparison stars, this comes later when the light estiamte is converted into the deduced magnitude.
EXAMPLE Two stars are choosen designated A and B , A being the brighter of the two. The number of parts into which the interval has been divided is FOUR. Then , if the variable appears to be ONE part fainter than A and THREE parts brighter than B, the record would be wriitten as : A(1) v (3) B The letter " v " represents the variable. Deducing the Magnitude from the Light Estimate A(1) v (3) B
A = 8.44 B = 8.93 Interval between them is 0.49 magnitude. Each fraction is therefor 0.12 magnitude. A + 1(0.12) = 8.56 B - 3(0.12) = 8.56 (rounded)
Go to:
Don Murray's Gathering of Double Stars
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