Deep Sky Object in Summer
M17 (Omega Nebula in Sagittarius)
|Date & Time: ||May 4 2013, from 24:34 to 25:32 JST(+0900)
|Composed 8 shots with 8 minutes exposed|
|Optical: ||TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3)
|with Astronomik CLS-CCD filter|
|Auto-guided with TAKAHASHI JP Equatorial & SBIG STV
|Digital Camera: ||Canon EOS 550D (Remodeled)
|Location: ||Ooizumi, Hokuto city, Yamanashi pref.
|Camera Settings: ||Recording Format...14bit CCD-RAW, converted to 16bit TIFF(5184×3456)|
M17 is a diffused nebula in Sagittarius positioned about 2.5 degrees south of M16(Eagle Nebula) in previous page.
M17 has several nicknames of "Swan Nebula" or the "Omega Nebula", this name came because the shape of the deep part of nebula resemble a Greek letter of omega.
And occasionally, the nebula is known as the "Horseshoe Nebula".
We can observe the nebula with a size of about 40arc minutes and 3300 light years away.
|M17 (NGC6618) / Diffused Nebula, type 1 E|
|R.A.||18h 20m 48.0s (2000.0)|
|Dec.||-16° 11' 00" (2000.0)|
|Real Size||43×35 light yrs.|
|Distance||3300 light yrs.|
|Other IDs||Sh2-45, LBN60|
⇒ Display the spectral profile of M17 (in new window)