Help us pick the TSS APOD!

Give us your suggestions for a Photo of the Day!!!
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Help us pick the TSS APOD!


Post by Gordon »

Just a reminder,

Give us a hand and help us select our daily TSS APOD!!!

It can be sketched, or captured with video or a single image, or a processed stack.

Not a lot of rules, but we would like an image that was captured with a members own equipment. Or sketched by their own hand.
Scopes: Explore Scientific ED80CF, Skywatcher 254N, Orion ST80, Orion Atlas EQ-g mount, Orion SSAG guider. Baader MPCC MkIII coma corrector, Vixen 70mm refractor. Lunt LS35THa solar scope. Skywatcher EQ5pro mount. Imagers: ZWO ASI1600 MM Cool, ZWO ASI533mc-Pro, ZWO ASI174mm-C (for use with my Quark chromosphere), ZWO ASI120MC Filters: LRGB, Ha 7nm, O-III 7nm, S-II 7nm Eyepieces: a few, Primary software: Cartes du Ciel, EQMOD, SGP, Nebulosity, Photoshop, StarTools V1.4
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Re: Help us pick the TSS APOD!


Post by Graeme1858 »

Hello Gordon

Can I propose Dan's collection of galaxies, ARP249 for an APOD?

dcrowson wrote: Sat Jan 02, 2021 9:55 pm Arp 249 (UGC 12891, PGC 25, vv 186/a/b and others) is the grouping of galaxies just below and to the left of the center of the image. It looks like there could be two or three but they have one or two designations depending on the catalog. Arp has these in his ‘Appearance of Fission’ class. Located in Pegasus, I could not find any distance estimates.

The some-what edge-on galaxy above center is PGC 4. It appears to be much closer at approximately 165 million light-years away.

This whole field appears to have a bunch of IFN. I could not see this in other images but this kind of stuff can be errantly processed out. See the inverted luminance for a better look.

Luminance – 24x600s – 240 minutes – binned 1x1
RGB – 8x300s – 40 minutes each – binned 2x2

360 minutes total exposure – 6 hours

Imaged December 15th and 16th, 2020 and January 1st, 2021 from Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.

LRGB - ... 7/sizes/l/

Luminance inverted - ... 1/sizes/l/




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