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#pleiades

1 post1 participant0 posts today

More images from last night.

First is Jupiter and a few of its moons.

Second is M 78, also known as NGC 2068, a reflection nebula in the constellation Orion, 1350 light years away. It is also known as the Casper the friendly ghost nebula.

Third photo are of the Pleiades. The Pleiades are visible with the naked eye and are about 444 light years away.

#astrophotography
#Seestar
#Pleiades

Continued thread

TIL: on the a5100, Sony disabled the option to turn off LENR (Long Exposure Noise Reduction), so every 30 sec image took me 62.
That's not only sad, but reduces the quality of the stacked image.

Anyway: Here's one of about 50 Subs, slightly cropped.

30 Seconds @ ISO1600
210mm Sony zoom lens (55-210)
Sony a5100
#noFilter

Can't even put into words how excited I am right now.

It's frickin' cold but I'm out for the second night out with clear skies this week.. Imaging #pleiades tonight.

Polar alignment was a bit tricky at first, but worked well in the end.
Getting the small kit zoom lens of my camera to somewhat decent focus was more of a fight.

Taking 30 second subs now, till the battery dies 😅

Went out to get some first real imaging time with my new #StarAdventurer mount tonight.

Knocked over the tripod twice while polar aligning.
Forgot the finder scope illuminator at home, couldn't see anything.
Tried illuminating with my head lamp, somehow succeeded.
Had my phone fall in the mud while searching #pleiades, dropped the lens cap when I wanted to put it in my pocket.
When my head lamp fell into the mud I gave up and went back home.

#astrophotography is a great hobby.. 😅

Moon in the Pleiades on the evening of Thursday, 9 January (for parts of North America) and the early morning of 10 Jan in Europe. See screenshot for an example in the late evening in New Mexico. (Best time to see this in New Mexico is right after sunset.)

stargazerslounge.com/topic/429

curtrenz.com/occultations.html

A pair of binoculars or small telescope will show this event well.

Tonight's post and image are a continuation of last night's post:
universeodon.com/@KrajciTom/11

(Winter milky way in Taurus - network of dark dust clouds. (85mm, f/1.4. Sony a6300.))

Tonight's image is monochrome/black & white because it's near infrared. (The filter is 670 nanometer long pass, which is very deep visible red (redder/longer than hydrogen alpha at 656 nm) and longer wavelengths, but my camera's sensitivity drops off and eventually ends at around 1050 nm)

Compare it to last night's color image. The infrared image can see deeper into some of the dusty areas that look quite dark in visible light.

Note that the infrared image is less sharp. The stars are bigger/fuzzier. That's because of chromatic aberration. This camera lens was designed to work well with visible light. It's performance in IR is noticeably poorer.