Click here for a full resolution image
This is a three frame mosaic of the extremely colorful Rho Ophiuchi area. The full resolution image is a more than 22 MPix and 135 Mb file. Rho Oph itself is a triple star (magnitudes 4.6, 5.0 and 5.9) and it is the one surrounded by the blue reflection nebula at the upper part of this image. This image has many NGC objects and a Messier globular (M4). Some of the objects imaged are: IC 4604, IC 4603, IC 4605, VdB 107 (surrounding Antares), Sh2-9 (surrounding Al Niyat, sigma Sco)…
Additional Information
Object
Name(s): Rho Oph Area
Type: Reflection, Emission Nebulae and a Globular Cluster
RA: 16h 27m 13s (coordinates centered on M4)
Dec: -26º 01’ 17”
Constellation: Scorpius
Size (arcmin): 220×390
Magnitude: +5
Distance: 400 ly
Image
Date: 2015-05-23+24+25
Location: SSO near Coonabarabran, NSW Australia
Size (arcmin): 240×420
Telescope: Takahashi FSQ 106 f/5
Camera: SBIG STL1102M (4008x2672pix)
Guiding: Yes, but not recorded
Total exposure: 6h20min (L: 100min; RGB: 280min)
Processing: CCDStack, Photoshop CC 2016 and PixInsight