M 8 (NGC 6523) Bright Nebula in Sagittarius
Center of field at approximately: RA 18 hours 03 minutes 23 seconds, Dec -24 degrees 22 minutes 08 seconds
Size: ~ 90' x 40' Magnitude: 5.0 Class: Emission (Sharpless) 3 3 3
North is up
West to the right
8" f5 Newtonian reflector
Miranda Laborec 35mm camera, manually guided, hypered Kodak Technical Pan 2415 film, 40 F outside temp
No filter, 25 minutes, 07/03/1986
D-19, 4.5 minutes @ 72F, 35mm negative scanned with Polaroid SprintScan 4000 (4000 dpi)
Scan is a crop from 35mm negative, scan processed in Photoshop CS5.1
Mt Pinos, CA
|Notes:||This is one of the Messier objects not currently 'visible' from
my Thousand Oaks observatory ... In an effort to
'fill in' my Messier images page, I will post what film images I have.
My film scanner is not presently hooked up, so I am using scans made for
my old film website from the early 2000's.
M 8, aka the Lagoon Nebula, is a complex object. It includes several Dark Nebulae (B 86, 89 and 296), an open cluster (NGC 6530), and more than one other NGC designation of the nebulosity. Here I will reference only the NGC designation my software (Megastar v5.0.13) uses.
Most of the film scans from the 8" f5 Newtonian reflector were centered on the object of interest, and were generally scanned to file as a 2000 x 2000 pixel crop of the 35mm negative. This image is a scan of about 80% of the 35mm negative (3723 x 5273 pixels).
Reduced in Photoshop to 1024 pixels, and saved under "Save for Web & Devices".
From the NGC / IC Project:Contemporary Visual Observation(s) for NGC 6523
NGC 6523 = M8 = Lagoon Nebula = LBN 25 = Sh 2-28: = N6526 = N6533 = IC 1271 18 03 41 -24 22.8 V = 5.8; Size 90x40 17.5": extremely bright detailed nebulosity which nearly fills a 50' field. Extensive fainter nebulosity fills the region to the north and a thin extension is to the east. Cut by a large high contrast dark lane ("Lagoon") oriented SW- NE. Contains 9 Sagittarii (V = 6.0) and a mag 7 star 3' NNE. A very bright 30" nebulous knot ("Hourglass Nebula") is near the center 3' SW of 9 Sag. Includes a bright open cluster N6530 on the E side. Prominent naked-eye object in dark sky. See observing notes for N6530 and IC 1271. - by Steve Gottlieb ================================================================= NGC 6533 = N6523 = M8 = Lagoon Nebula = LBN 25 = N6526 = IC 1271 18 03 41 -24 22.8 See observing notes for N6523 = M8. - by Steve GottliebHistorical Research Notes / Correction for NGC 6523
NGC 6523 is the star-forming core of M8 at the heart of the bright northwestern part of the nebula. NGC 6526 (which see) is the southeastern part of the nebula, and NGC 6530 is the bright star cluster 10-12 arcmin following N6523. NGC 6533 (which see) applies to the entire M8 complex, and IC 1271 and IC 4678 (both of which see) apply to condensations in its eastern reaches. - Dr. Harold G. Corwin, Jr.Correction Disclaimer
As with all corrections to the NGC and IC Catalogues, there is a certain margin for error, even though the evidence supporting the correction may be strong and compelling. It is with this in mind that we ask the user to use this information as 'Most Probable', but never to assume the correction is 'Absolute'. All published corrections are based on an exhaustive 'paper chase' of the historical record back to the original discoverer's published notes/papers, and are therefore based upon the historical accuracy (or inaccuracy) of those particular notes/papers. In short, Caveat Emptor! - Robert E. Erdmann, Jr.