Instrument

Takahashi FSQ-106ED @ f/5.0 (530 mm F.L.) W/ MoonLite NightCrawler Rotator/Focuser. Captured at 2.1 arcsec/pixel.  Shown at 3.64 and 7.77 arcsec/pixel.

Mount

Paramount MyT

Camera

SBIG STF-8300M unguided using AstroDon LRGB filters

Acquisition Data

5/27/2020 Chino Valley, AZ... with CCD Commander & TheSkyx

Exposure

Software & Processing Notes

• TheSkyX, PixInsight & Photoshop CS6.

• PixInsight processing includes calibration, CosmeticCorrection,  star registration, comet registration and mean combine, gradient repair and non-linear stretching with HistogramTransformation.

• Noiseware 5, a PhotoShop plug-in.

• PhotoShop to create the comet only "CO" image, combining the star registered image with the CO and final touch-up.

Comment

North is to the top.

C/2017 T2 (PANSTARRS) is an Oort cloud comet discovered on 2 October 2017 when it was 9.2 AU (1.38 billion km) from the Sun. The closest approach to Earth was on 28 December 2019 at a distance of 1.52 AU (227 million km). The comet's Orbital period is » 7 million years.

Source: Wikipedia

Above is Coddington's Nebula. Edwin Coddington discovered the "nebula" in 1898. Of course, we now know that this is actually a galaxy and it is cataloged as IC 2574. At a distance of about 12 million light-years, it is vastly farther away than the comet.