NGC 7023 - the Iris Nebula in Cepheus

A bright reflection nebula in the constellation Cepheus, about 1300 light-years away. Actually NGC 7023 is the star cluster inside the nebula, which is properly designated LBN 487.

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File information
Filename:	NGC70023_20180611_LRGB2B.jpg
Album name:	27telp / Nebulae
Location and Date:	OCA site near Anza, California, June 7 and 11, 2018
Equipment:	Image capture with William Optics FLT-132 f/7 scope, QSI 583wsg CCD camera, Astro-Physics 1200 GTO mount, guiding with Mini-Borg 50 and Starlight Xpress Ultrastar guide camera
Settings:	Luminance - 20 exposures @ 5 minutes each, bin 1x1; Red, Green, and Blue - 20 exposures @ 5 minutes each, bin2x2
Notes:	Image capture software - Sequence Generator Pro; calibration, stacking and final processing with CCDStack2, PixInsight and Adobe Photoshop CC
Filesize:	1462 KiB
Date added:	Jan 31, 2022
Dimensions:	1888 x 1540 pixels
Displayed:	250 times
Color Space:	sRGB
EXIF Offset:	172
EXIF Version:	version 2.31
Resolution Unit:	Inch
Software:	Adobe Photoshop Lightroom Classic 11.1 (Windows)
X Resolution:	240 dots per ResolutionUnit
Y Resolution:	240 dots per ResolutionUnit
URL:	http://www.slithergadee.net/coppergallery/displayimage.php?pid=1662
Favorites:	Add to Favorites

Debug Info

Debug Output: show / hide

USER: 
------------------
Array
(
    [ID] => f486911a714ea695a801b314b58b1fb6
    [am] => 1
    [liv] => Array
        (
            [0] => 1662
        )

)

==========================
USER DATA:
------------------
Array
(
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    [user_name] => Guest
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        (
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        )

[group_quota] => 0
    [can_rate_pictures] => 1
    [can_send_ecards] => 0
    [can_post_comments] => 0
    [can_upload_pictures] => 0
    [can_create_albums] => 0
    [pub_upl_need_approval] => 1
    [priv_upl_need_approval] => 1
    [access_level] => 3
    [disk_max] => 0
    [disk_min] => 0
    [has_admin_access] => 0
    [group_name] => Guests
    [can_create_public_albums] => 0
    [can_see_all_albums] => 0
    [group_id] => 3
    [allowed_albums] => Array
        (
        )

)

==========================
Queries:
------------------
Array
(
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    [11] => SELECT rgt, lft, depth FROM cm_categories WHERE cid = 2 LIMIT 1 [include/functions.inc.php:44] (0.79 ms)
    [12] => SELECT cid FROM cm_categories WHERE lft BETWEEN 3 AND 8 [include/functions.inc.php:49] (0.8 ms)
    [13] => SELECT keyword FROM cm_albums WHERE category IN (2, 12, 13) [include/functions.inc.php:57] (0.27 ms)
    [14] => SELECT ctime FROM cm_pictures WHERE pid = 1662 [include/functions.inc.php:2264] (1.96 ms)
    [15] => SELECT COUNT(*) FROM cm_pictures AS p
            INNER JOIN cm_albums AS r ON r.aid = p.aid
            INNER JOIN cm_categories AS c2 ON c2.cid = category WHERE (c2.lft BETWEEN 3 AND 8) AND (1 OR keywords like '%27telp%' OR keywords like '%27telp%' OR keywords like '%27telp%' OR keywords like '%27telp%') AND r.aid NOT IN (12, 51)
            AND approved = 'YES'
            AND (ctime > 1643674590
            OR ctime = 1643674590 AND pid > 1662) [include/functions.inc.php:2275] (10.82 ms)
    [16] => SELECT COUNT(*)
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                INNER JOIN cm_albums AS a ON a.aid = r.aid
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                AND approved = 'YES' [include/functions.inc.php:1614] (17.57 ms)
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                FROM cm_pictures AS r
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                AND approved = 'YES'
                ORDER BY ctime DESC, pid DESC
                 LIMIT 109 ,1 [include/functions.inc.php:1630] (14.68 ms)
    [18] => SELECT COUNT(*)
                FROM cm_pictures AS r
                INNER JOIN cm_albums AS a ON a.aid = r.aid
                INNER JOIN cm_categories AS c2 ON c2.cid = category WHERE (c2.lft BETWEEN 3 AND 8) AND (1 OR keywords like '%27telp%' OR keywords like '%27telp%' OR keywords like '%27telp%' OR keywords like '%27telp%') AND r.aid NOT IN (12, 51)
                AND approved = 'YES' [include/functions.inc.php:1614] (1.03 ms)
    [19] => SELECT r.pid
                FROM cm_pictures AS r
                INNER JOIN cm_albums AS a ON a.aid = r.aid
                INNER JOIN cm_categories AS c2 ON c2.cid = category WHERE (c2.lft BETWEEN 3 AND 8) AND (1 OR keywords like '%27telp%' OR keywords like '%27telp%' OR keywords like '%27telp%' OR keywords like '%27telp%') AND r.aid NOT IN (12, 51)
                AND approved = 'YES'
                ORDER BY ctime DESC, pid DESC
                 LIMIT 108 ,1 [include/functions.inc.php:1630] (14.95 ms)
    [20] => SELECT COUNT(*)
                FROM cm_pictures AS r
                INNER JOIN cm_albums AS a ON a.aid = r.aid
                INNER JOIN cm_categories AS c2 ON c2.cid = category WHERE (c2.lft BETWEEN 3 AND 8) AND (1 OR keywords like '%27telp%' OR keywords like '%27telp%' OR keywords like '%27telp%' OR keywords like '%27telp%') AND r.aid NOT IN (12, 51)
                AND approved = 'YES' [include/functions.inc.php:1614] (0.37 ms)
    [21] => SELECT r.pid
                FROM cm_pictures AS r
                INNER JOIN cm_albums AS a ON a.aid = r.aid
                INNER JOIN cm_categories AS c2 ON c2.cid = category WHERE (c2.lft BETWEEN 3 AND 8) AND (1 OR keywords like '%27telp%' OR keywords like '%27telp%' OR keywords like '%27telp%' OR keywords like '%27telp%') AND r.aid NOT IN (12, 51)
                AND approved = 'YES'
                ORDER BY ctime DESC, pid DESC
                 LIMIT 110 ,1 [include/functions.inc.php:1630] (10.24 ms)
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                INNER JOIN cm_albums AS a ON a.aid = r.aid
                INNER JOIN cm_categories AS c2 ON c2.cid = category WHERE (c2.lft BETWEEN 3 AND 8) AND (1 OR keywords like '%27telp%' OR keywords like '%27telp%' OR keywords like '%27telp%' OR keywords like '%27telp%') AND r.aid NOT IN (12, 51)
                AND approved = 'YES' [include/functions.inc.php:1614] (0.44 ms)
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                INNER JOIN cm_categories AS c2 ON c2.cid = category WHERE (c2.lft BETWEEN 3 AND 8) AND (1 OR keywords like '%27telp%' OR keywords like '%27telp%' OR keywords like '%27telp%' OR keywords like '%27telp%') AND r.aid NOT IN (12, 51)
                AND approved = 'YES'
                ORDER BY ctime DESC, pid DESC
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                AND approved = 'YES' [include/functions.inc.php:1614] (0.34 ms)
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                AND approved = 'YES'
                ORDER BY ctime ASC, pid ASC
                 LIMIT 0 ,1 [include/functions.inc.php:1630] (12.52 ms)
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                cm_categories AS p
                WHERE c.lft BETWEEN p.lft AND p.rgt
                AND c.cid = 13
                ORDER BY p.lft [include/functions.inc.php:2940] (0.36 ms)
    [28] => UPDATE cm_pictures SET hits = hits + 1, lasthit_ip = '216.73.216.211', mtime = CURRENT_TIMESTAMP WHERE pid = 1662 [include/functions.inc.php:2842] (24.4 ms)
    [29] => SELECT extension, mime, content, player FROM cm_filetypes [include/functions.inc.php:5952] (3.46 ms)
    [30] => SELECT null FROM cm_votes WHERE pic_id= 1662 AND user_md5_id='f486911a714ea695a801b314b58b1fb6' [include/themes.inc.php:3624] (1.45 ms)
    [31] => SELECT null FROM cm_vote_stats WHERE pid = 1662 AND ip = '216.73.216.211' [include/themes.inc.php:3625] (1.76 ms)
    [32] => SELECT user_name as user_name FROM `i5493328_cm1`.cm_users WHERE user_id = '1' [bridge/udb_base.inc.php:59] (0.85 ms)
    [33] => SELECT exifData FROM cm_exif WHERE pid = 1662 [include/exif_php.inc.php:40] (2.47 ms)
    [34] => SELECT COUNT(msg_id) FROM cm_comments WHERE pid='1662' [include/themes.inc.php:3757] (1.99 ms)
)

==========================
GET :
------------------
Array
(
    [album] => lastup
    [cat] => 2
    [pid] => 1662
)

==========================
POST :
------------------
Array
(
)

==========================
COOKIE :
------------------
Array
(
    [cpg16x_data] => YTozOntzOjI6IklEIjtzOjMyOiJmNDg2OTExYTcxNGVhNjk1YTgwMWIzMTRiNThiMWZiNiI7czoyOiJhbSI7aToxO3M6MzoibGl2IjthOjA6e319
    [a520716e4e1a802c3b699f97dd5ac36c] => ade4da8d339e2ac320cd8b66b7019733
)

==========================

Event Horizon - Astronomical and Terrestrial Images

NGC 7023 - the Iris Nebula in Cepheus

A bright reflection nebula in the constellation Cepheus, about 1300 light-years away. Actually NGC 7023 is the star cluster inside the nebula, which is properly designated LBN 487.