Deep Sky Object in Summer
M16 (Eagle Nebula in Serpens)
|Date & Time: ||Apr 13 2013, from 27:06 to 27:47 JST(+0900)
|Composed 6 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)|
M16 (NGC6611) is a magnificent diffused nebula in the constellation of Serpens, with a size of 30 arc minutes and a distance of about 4600 light years.
The nebula is lying on top of an open cluster, both nebula and cluster have same number of M16=NGC6611.
The nebula has a nickname "Eagle Nebula", very luminous with dark streaks of dust; a nursery of baby stars.
|M16 (NGC6611) / Diffused Nebula & Open Cluster, type II 3 m n|
|R.A.||18h 18m 48.0s (2000.0)|
|Dec.||-13° 47' 00" (2000.0)|
|Real Size||46×37 light yrs.|
|# of Stars||543|
|Distance||4600 light yrs.|
The dark streaks, which look like elephant's nose, are now very popular by a very clear photograph taken by the Hubble Space Telescope (HST).
A magnified image below shows you the central region of the Eagle Nebula.
This image barely captured the gaseous pillars like the HST's one.
⇒ Display the spectral profile of M16 (in new window)
||The "Elephant's Nose Structure" in M16
Dark gaseous pillars in center of M16 famous for HST's picture.
Left one of three pillars is fairly indistinct.