CDK20
NGC 7023 with a CDK500 by Jeff Lovelace
Submitted September 18, 2020 by Matt Dieterich
NGC 7023 with a CDK500 by Jeff Lovelace.
PK 136+05 with a CDK500 by Jeff Lovelace
Submitted September 18, 2020 by Matt Dieterich
PK 136+05 with a CDK500 by Jeff Lovelace
47 Tucanae by Damian Peach
Submitted July 21, 2015 by Planewave Instruments
CDK20″ @ F4.5. FLI camera. RGB: 45mins.
Possibly the finest globular cluster in the entire sky. Visible to the naked eye alongside the Small Magellanic Cloud, the massive ball of stars is 16,700 light years away from our solar system and is 120 light years in diameter. Unlike Omega Centauri (the skies bright cluster of this type) 47 Tucanae is much denser toward the core giving the cluster a “3D” appearance in the telescope.
Cartwheel Galaxy by Damian Peach
Submitted July 21, 2015 by Planewave Instruments
CDK20″ with FLI-PL6303E camera. LRGB. L: 60mins. RGB: 5mins.
Located in the southern constellation Sculptor, this collisional ring galaxy was likely formed from a collision between two galaxies in the distant past. The blue ring of material is a region of active star formation dominated by hot blue stars. This ring of material is 150,000 light years in diameter which is larger than our own milky way galaxy. The Cartwheel Galaxy is 500 million light years away and glows at 15th magnitude.
Abell 7 by Don Goldman (APOD Dec 5, 2013)
Submitted December 14, 2013 by Planewave Instruments
Mount: PlaneWave Ascension A200HR
OAG: Astrodon MonsterMOAG
Acquisition: CCDAutoPilot5
Calibration: CCDStack2
Observatory Site: Siding Springs, iTelescope.net, NSW, Australia
Filters: Astrodon Gen2 RGB, 5nm H-a, 3 nmOIII
Guider: SBIG ST-i
Camera Operation: MaximDL5.24
Processing: Photoshop CC, PixInsight1.8