NGC 6818
DSS image of NGC 6818
Overlaid DSS image of NGC 6818, 30' x 30' with north at top and west to the right

Aladin viewer for the region around NGC 6818
Little Gem Nebula
BD-14 5523, HD 186282, PK 025-17 1

Type  Planetary Nebula
Magnitude  9.3
Size  0.44'
Right Ascension  19h 43' 58.1"  (2000)
Declination  14° 9' 13" S
Constellation  Sagittarius
Description  B, vS, R
Classification  4
Observing Notes

Andrew Cooper
Nov 14, 2022    Waikoloa, HI (map)
28cm f/10 SCT, NexStar 11" GyPSy @ 233x
Seeing: 6 Transparency: 6 Moon: 0%

Small. bright and obvious, ½' diameter, a very distinct round nebula with a very defined outer boundary, no structure noted, a faint greenish hue, no central star noted

Andrew Cooper
Oct 7, 2020    Waikoloa, HI (map)
20cm f/6 Newtonian, Cave Astrola @ 136x
Seeing: 5 Transparency: 6 Moon: 0%

Small, bright, round, ½' in diameter, no color or structure noted aside from distinct edges, central star not visible

Andrew Cooper
Aug 3, 2019    Kaʻohe, Mauna Kea, HI (map)
28cm f/10 SCT, NexStar 11" GyPSy @ 127x
Seeing: 6 Transparency: 6.5 Moon: 0%

A neat round disk, bright, small, less than 1' diameter, slightly greenish, round, no central star visible

Andrew Cooper
Apr 18, 2010    Hale Pohaku, HI (map)
46cm f/4.5 Newtonian, Deep Violet @ 524x
Seeing: 6 Transparency: 7 Moon: 0%

Bright, small, a featureless green disk, no structure or central star visible

Andrew Cooper
Jun 5, 2005    Vekol Ranch, Maricopa Co., AZ (map)
46cm f/4.5 Deep Violet

Small blue disk, even and featureless, maybe a little darker at the center, about 30" in diameter, no central star visible

Andrew Cooper
May 25, 2001    Dragoon Mtn. Ranch, Cochise Co., AZ (map)
46cm f/4.5 Deep Violet

Small, fairly bright, no visible detail, round

Andrew Cooper
Sep 2, 1999    White Stallion Ranch, Marana, AZ (map)
20cm f/10 SCT

Not easy to find, almost stellar at low power makes it difficult to distinguish. No color noted, 160x used (12mmNag4), nearly circular, no central star visible

Rev. T.W. Webb
May 19, 1885    Hardwick, Herefordshire, England (map)

Plan., bl., like star out of focus. E. of Rosse, and D'A darker centre; h., otherwise. Huggins, spect. gas. 2° n, a little f 54.
― Celestial Objects for Common Telescopes, T. W. Webb, 1917
Other Data Sources for NGC 6818
Nearby objects for NGC 6818
Credits...

Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.

A complete list of credits and sources can be found on the about page

NGC 6818